Update to spec v1.0.0-rc.0 and BLSv4 (#1765)

## Issue Addressed Closes #1504 Closes #1505 Replaces #1703 Closes #1707 ## Proposed Changes * Update BLST and Milagro to versions compatible with BLSv4 spec * Update Lighthouse to spec v1.0.0-rc.0, and update EF test vectors * Use the v1.0.0 constants for `MainnetEthSpec`. * Rename `InteropEthSpec` -> `V012LegacyEthSpec` * Change all constants to suit the mainnet `v0.12.3` specification (i.e., Medalla). * Deprecate the `--spec` flag for the `lighthouse` binary * This value is now obtained from the `config_name` field of the `YamlConfig`. * Built in testnet YAML files have been updated. * Ignore the `--spec` value, if supplied, log a warning that it will be deprecated * `lcli` still has the spec flag, that's fine because it's dev tooling. * Remove the `E: EthSpec` from `YamlConfig` * This means we need to deser the genesis `BeaconState` on-demand, but this is fine. * Swap the old "minimal", "mainnet" strings over to the new `EthSpecId` enum. * Always require a `CONFIG_NAME` field in `YamlConfig` (it used to have a default). ## Additional Info Lots of breaking changes, do not merge! ~~We will likely need a Lighthouse v0.4.0 branch, and possibly a long-term v0.3.0 branch to keep Medalla alive~~. Co-authored-by: Kirk Baird <baird.k@outlook.com> Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-10-28 22:19:38 +00:00 · 2020-10-28 22:19:38 +00:00 · 36bd4d87f0
commit 36bd4d87f0
parent ad846ad280
55 changed files with 596 additions and 661 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "account_manager"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "account_utils",
 "bls",
@ -18,8 +18,8 @@ dependencies = [
 "eth2_testnet_config",
 "eth2_wallet",
 "eth2_wallet_manager",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "libc",
 "rand 0.7.3",
 "rayon",
@ -172,12 +172,8 @@ dependencies = [
 [[package]]
 name = "amcl"
-version = "0.2.0"
+version = "0.3.0"
-source = "git+https://github.com/sigp/milagro_bls?branch=paulh#7662690845f3f2594e46cfe71b6b0bb91d5e1f82"
+source = "git+https://github.com/sigp/milagro_bls?tag=v1.4.0#45a076a776a6f1d9f8157fd2d574bfefaee2c81a"
 dependencies = [
 "hex 0.3.2",
 "lazy_static",
 ]
 [[package]]
 name = "ansi_term"
@ -226,9 +222,9 @@ checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
 [[package]]
 name = "arrayvec"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 [[package]]
 name = "asn1_der"
@ -357,7 +353,7 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 name = "beacon_chain"
 version = "0.2.0"
 dependencies = [
- "bitvec 0.19.3",
+ "bitvec 0.19.4",
 "bls",
 "bus",
 "derivative",
@ -370,7 +366,7 @@ dependencies = [
 "eth2_ssz_types",
 "exit-future",
 "fork_choice",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
 "int_to_bytes",
 "integer-sqrt",
@ -409,7 +405,7 @@ dependencies = [
 [[package]]
 name = "beacon_node"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "beacon_chain",
 "clap",
@ -424,9 +420,9 @@ dependencies = [
 "eth2_ssz",
 "eth2_testnet_config",
 "exit-future",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
- "hex 0.4.2",
+ "hex",
 "hyper 0.13.8",
 "lighthouse_version",
 "logging",
@ -487,9 +483,9 @@ dependencies = [
 [[package]]
 name = "bitvec"
-version = "0.19.3"
+version = "0.19.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11593270830d9b037fbead730bb0c05ef6fbf6be55537a1e8e5892edef7e1f03"
+checksum = "a7ba35e9565969edb811639dbebfe34edc0368e472c5018474c8eb2543397f81"
 dependencies = [
 "funty",
 "radium 0.5.3",
@ -499,15 +495,13 @@ dependencies = [
 [[package]]
 name = "blake2"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84ce5b6108f8e154604bd4eb76a2f726066c3464d5a552a4229262a18c9bb471"
+checksum = "10a5720225ef5daecf08657f23791354e1685a8c91a4c60c7f3d3b2892f978f4"
 dependencies = [
 "byte-tools",
 "byteorder",
 "crypto-mac 0.8.0",
 "digest 0.9.0",
- "opaque-debug 0.2.3",
+ "opaque-debug 0.3.0",
 ]
 [[package]]
@ -587,7 +581,7 @@ dependencies = [
 "eth2_hashing",
 "eth2_ssz",
 "ethereum-types",
- "hex 0.4.2",
+ "hex",
 "milagro_bls",
 "rand 0.7.3",
 "serde",
@ -599,8 +593,8 @@ dependencies = [
 [[package]]
 name = "blst"
-version = "0.1.1"
+version = "0.2.0"
-source = "git+https://github.com/sigp/blst.git?rev=284f7059642851c760a09fb1708bcb59c7ca323c#284f7059642851c760a09fb1708bcb59c7ca323c"
+source = "git+https://github.com/sigp/blst.git?rev=7cf47864627ca479cad06c2a164f30d0cbaf16ce#7cf47864627ca479cad06c2a164f30d0cbaf16ce"
 dependencies = [
 "cc",
 "glob",
@ -609,15 +603,15 @@ dependencies = [
 [[package]]
 name = "boot_node"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "beacon_node",
 "clap",
 "eth2_libp2p",
 "eth2_ssz",
 "eth2_testnet_config",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "log 0.4.11",
 "logging",
 "slog",
@ -839,7 +833,7 @@ dependencies = [
 "dirs 3.0.1",
 "eth2_ssz",
 "eth2_testnet_config",
- "hex 0.4.2",
+ "hex",
 "types",
 ]
@ -857,7 +851,7 @@ dependencies = [
 "eth2_config",
 "eth2_libp2p",
 "eth2_ssz",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
 "http_api",
 "http_metrics",
@ -1267,7 +1261,7 @@ version = "0.2.0"
 dependencies = [
 "eth2_ssz",
 "ethabi",
- "hex 0.4.2",
+ "hex",
 "reqwest",
 "serde_json",
 "sha2 0.9.1",
@ -1384,8 +1378,8 @@ dependencies = [
 "digest 0.9.0",
 "enr",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "hkdf",
 "k256",
 "lazy_static",
@ -1416,8 +1410,8 @@ dependencies = [
 "digest 0.9.0",
 "enr",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "hkdf",
 "k256",
 "lazy_static",
@ -1487,7 +1481,7 @@ dependencies = [
 "eth2_ssz",
 "eth2_ssz_derive",
 "ethereum-types",
- "hex 0.4.2",
+ "hex",
 "rayon",
 "serde",
 "serde_derive",
@ -1541,7 +1535,7 @@ dependencies = [
 "base64 0.12.3",
 "bs58",
 "ed25519-dalek",
- "hex 0.4.2",
+ "hex",
 "k256",
 "log 0.4.11",
 "rand 0.7.3",
@ -1572,7 +1566,7 @@ dependencies = [
 "eth2_config",
 "eth2_testnet_config",
 "exit-future",
- "futures 0.3.6",
+ "futures 0.3.7",
 "logging",
 "parking_lot 0.11.0",
 "slog",
@ -1604,8 +1598,8 @@ dependencies = [
 "eth2_hashing",
 "eth2_ssz",
 "eth2_ssz_derive",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "lazy_static",
 "libflate",
 "lighthouse_metrics",
@ -1630,7 +1624,7 @@ name = "eth1_test_rig"
 version = "0.2.0"
 dependencies = [
 "deposit_contract",
- "futures 0.3.6",
+ "futures 0.3.7",
 "serde_json",
 "tokio 0.2.22",
 "types",
@ -1646,7 +1640,7 @@ dependencies = [
 "eth2_keystore",
 "eth2_libp2p",
 "eth2_ssz",
- "hex 0.4.2",
+ "hex",
 "libsecp256k1",
 "procinfo",
 "proto_array",
@ -1688,7 +1682,7 @@ dependencies = [
 "base64 0.13.0",
 "bls",
 "eth2_hashing",
- "hex 0.4.2",
+ "hex",
 "lazy_static",
 "num-bigint",
 "serde",
@ -1701,7 +1695,7 @@ name = "eth2_key_derivation"
 version = "0.1.0"
 dependencies = [
 "bls",
- "hex 0.4.2",
+ "hex",
 "num-bigint-dig",
 "ring",
 "sha2 0.9.1",
@ -1716,7 +1710,7 @@ dependencies = [
 "bls",
 "eth2_key_derivation",
 "eth2_ssz",
- "hex 0.4.2",
+ "hex",
 "hmac 0.9.0",
 "pbkdf2 0.5.0",
 "rand 0.7.3",
@ -1744,9 +1738,9 @@ dependencies = [
 "eth2_ssz_types",
 "exit-future",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "hashset_delay",
- "hex 0.4.2",
+ "hex",
 "lazy_static",
 "libp2p",
 "lighthouse_metrics",
@ -1825,7 +1819,7 @@ version = "0.1.0"
 dependencies = [
 "eth2_key_derivation",
 "eth2_keystore",
- "hex 0.4.2",
+ "hex",
 "rand 0.7.3",
 "serde",
 "serde_json",
@ -1891,7 +1885,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e43f2f1833d64e33f15592464d6fdd70f349dda7b1a53088eb83cd94014008c5"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 ]
 [[package]]
@ -2005,7 +1999,7 @@ dependencies = [
 "beacon_chain",
 "eth2_ssz",
 "eth2_ssz_derive",
- "hex 0.4.2",
+ "hex",
 "proto_array",
 "slot_clock",
 "state_processing",
@ -2050,9 +2044,9 @@ checksum = "4c7e4c2612746b0df8fed4ce0c69156021b704c9aefa360311c04e6e9e002eed"
 [[package]]
 name = "futures"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d8e3078b7b2a8a671cb7a3d17b4760e4181ea243227776ba83fd043b4ca034e"
+checksum = "95314d38584ffbfda215621d723e0a3906f032e03ae5551e650058dac83d4797"
 dependencies = [
 "futures-channel",
 "futures-core",
@ -2065,9 +2059,9 @@ dependencies = [
 [[package]]
 name = "futures-channel"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a4d35f7401e948629c9c3d6638fb9bf94e0b2121e96c3b428cc4e631f3eb74"
+checksum = "0448174b01148032eed37ac4aed28963aaaa8cfa93569a08e5b479bbc6c2c151"
 dependencies = [
 "futures-core",
 "futures-sink",
@ -2075,9 +2069,9 @@ dependencies = [
 [[package]]
 name = "futures-core"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d674eaa0056896d5ada519900dbf97ead2e46a7b6621e8160d79e2f2e1e2784b"
+checksum = "18eaa56102984bed2c88ea39026cff3ce3b4c7f508ca970cedf2450ea10d4e46"
 [[package]]
 name = "futures-cpupool"
@ -2091,9 +2085,9 @@ dependencies = [
 [[package]]
 name = "futures-executor"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc709ca1da6f66143b8c9bec8e6260181869893714e9b5a490b169b0414144ab"
+checksum = "f5f8e0c9258abaea85e78ebdda17ef9666d390e987f006be6080dfe354b708cb"
 dependencies = [
 "futures-core",
 "futures-task",
@ -2103,15 +2097,15 @@ dependencies = [
 [[package]]
 name = "futures-io"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fc94b64bb39543b4e432f1790b6bf18e3ee3b74653c5449f63310e9a74b123c"
+checksum = "6e1798854a4727ff944a7b12aa999f58ce7aa81db80d2dfaaf2ba06f065ddd2b"
 [[package]]
 name = "futures-macro"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f57ed14da4603b2554682e9f2ff3c65d7567b53188db96cb71538217fc64581b"
+checksum = "e36fccf3fc58563b4a14d265027c627c3b665d7fed489427e88e7cc929559efe"
 dependencies = [
 "proc-macro-hack",
 "proc-macro2",
@ -2121,15 +2115,15 @@ dependencies = [
 [[package]]
 name = "futures-sink"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d8764258ed64ebc5d9ed185cf86a95db5cac810269c5d20ececb32e0088abbd"
+checksum = "0e3ca3f17d6e8804ae5d3df7a7d35b2b3a6fe89dac84b31872720fc3060a0b11"
 [[package]]
 name = "futures-task"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dd26820a9f3637f1302da8bceba3ff33adbe53464b54ca24d4e2d4f1db30f94"
+checksum = "96d502af37186c4fef99453df03e374683f8a1eec9dcc1e66b3b82dc8278ce3c"
 dependencies = [
 "once_cell",
 ]
@ -2142,9 +2136,9 @@ checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
 [[package]]
 name = "futures-util"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a894a0acddba51a2d49a6f4263b1e64b8c579ece8af50fa86503d52cd1eea34"
+checksum = "abcb44342f62e6f3e8ac427b8aa815f724fd705dfad060b18ac7866c15bb8e34"
 dependencies = [
 "futures 0.1.30",
 "futures-channel",
@ -2154,7 +2148,7 @@ dependencies = [
 "futures-sink",
 "futures-task",
 "memchr",
- "pin-project 0.4.27",
+ "pin-project 1.0.1",
 "pin-utils",
 "proc-macro-hack",
 "proc-macro-nested",
@ -2168,7 +2162,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce54d63f8b0c75023ed920d46fd71d0cbbb830b0ee012726b5b4f506fb6dea5b"
 dependencies = [
 "bytes 0.5.6",
- "futures 0.3.6",
+ "futures 0.3.7",
 "memchr",
 "pin-project 0.4.27",
 ]
@ -2221,7 +2215,7 @@ dependencies = [
 "eth2_hashing",
 "eth2_ssz",
 "exit-future",
- "futures 0.3.6",
+ "futures 0.3.7",
 "int_to_bytes",
 "merkle_proof",
 "parking_lot 0.11.0",
@ -2342,9 +2336,9 @@ dependencies = [
 [[package]]
 name = "h2"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993f9e0baeed60001cf565546b0d3dbe6a6ad23f2bd31644a133c641eccf6d53"
+checksum = "5e4728fd124914ad25e99e3d15a9361a879f6620f63cb56bbb08f95abb97a535"
 dependencies = [
 "bytes 0.5.6",
 "fnv",
@ -2357,6 +2351,7 @@ dependencies = [
 "tokio 0.2.22",
 "tokio-util",
 "tracing",
 "tracing-futures",
 ]
 [[package]]
@ -2397,7 +2392,7 @@ dependencies = [
 name = "hashset_delay"
 version = "0.2.0"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "tokio 0.2.22",
 ]
@ -2444,12 +2439,6 @@ dependencies = [
 "libc",
 ]
 [[package]]
 name = "hex"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 [[package]]
 name = "hex"
 version = "0.4.2"
@ -2570,7 +2559,7 @@ dependencies = [
 "eth2_libp2p",
 "eth2_ssz",
 "fork_choice",
- "hex 0.4.2",
+ "hex",
 "lazy_static",
 "lighthouse_metrics",
 "lighthouse_version",
@ -2691,7 +2680,7 @@ dependencies = [
 "futures-channel",
 "futures-core",
 "futures-util",
- "h2 0.2.6",
+ "h2 0.2.7",
 "http 0.2.1",
 "http-body 0.3.1",
 "httparse",
@ -2814,11 +2803,11 @@ dependencies = [
 [[package]]
 name = "instant"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "63312a18f7ea8760cdd0a7c5aac1a619752a246b833545e3e36d1f81f7cd9e66"
+checksum = "cb1fc4429a33e1f80d41dc9fea4d108a88bec1de8053878898ae448a0b52f613"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
 ]
 [[package]]
@ -2826,7 +2815,7 @@ name = "int_to_bytes"
 version = "0.2.0"
 dependencies = [
 "bytes 0.5.6",
- "hex 0.4.2",
+ "hex",
 "yaml-rust",
 ]
@ -2902,9 +2891,9 @@ dependencies = [
 [[package]]
 name = "k256"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2967b7caf19e57f5d01ac0893551b0aaae1a8e2e2b2a28996e12c9c51b3b486"
+checksum = "3934640b1efbc660af5889d041854b6985d403771dc4d5fee984e13e8f82f313"
 dependencies = [
 "cfg-if 1.0.0",
 "ecdsa",
@ -2951,7 +2940,7 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 [[package]]
 name = "lcli"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "bls",
 "clap",
@ -2964,9 +2953,9 @@ dependencies = [
 "eth2_libp2p",
 "eth2_ssz",
 "eth2_testnet_config",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
- "hex 0.4.2",
+ "hex",
 "lighthouse_version",
 "log 0.4.11",
 "rand 0.7.3",
@ -3006,15 +2995,15 @@ dependencies = [
 [[package]]
 name = "libc"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"
+checksum = "4d58d1b70b004888f764dfbf6a26a3b0342a1632d33968e4a179d8011c760614"
 [[package]]
 name = "libflate"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9bac9023e1db29c084f9f8cd9d3852e5e8fddf98fb47c4964a0ea4663d95949"
+checksum = "389de7875e06476365974da3e7ff85d55f1972188ccd9f6020dd7c8156e17914"
 dependencies = [
 "adler32",
 "crc32fast",
@ -3041,7 +3030,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72
 dependencies = [
 "atomic",
 "bytes 0.5.6",
- "futures 0.3.6",
+ "futures 0.3.7",
 "lazy_static",
 "libp2p-core 0.22.2",
 "libp2p-core-derive",
@ -3072,7 +3061,7 @@ dependencies = [
 "ed25519-dalek",
 "either",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "futures-timer",
 "lazy_static",
 "libsecp256k1",
@ -3105,7 +3094,7 @@ dependencies = [
 "ed25519-dalek",
 "either",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "futures-timer",
 "lazy_static",
 "libsecp256k1",
@ -3142,7 +3131,7 @@ name = "libp2p-dns"
 version = "0.22.0"
 source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72fb134dea5f9669#8c6ce6eb1228de568568f6cd72fb134dea5f9669"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "libp2p-core 0.22.2",
 "log 0.4.11",
 ]
@ -3156,7 +3145,7 @@ dependencies = [
 "byteorder",
 "bytes 0.5.6",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "futures_codec",
 "hex_fmt",
 "libp2p-core 0.22.2",
@ -3176,7 +3165,7 @@ name = "libp2p-identify"
 version = "0.22.0"
 source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72fb134dea5f9669#8c6ce6eb1228de568568f6cd72fb134dea5f9669"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "libp2p-core 0.22.2",
 "libp2p-swarm",
 "log 0.4.11",
@ -3193,7 +3182,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72
 dependencies = [
 "bytes 0.5.6",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "futures_codec",
 "libp2p-core 0.22.2",
 "log 0.4.11",
@ -3208,7 +3197,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72
 dependencies = [
 "bytes 0.5.6",
 "curve25519-dalek",
- "futures 0.3.6",
+ "futures 0.3.7",
 "lazy_static",
 "libp2p-core 0.22.2",
 "log 0.4.11",
@ -3228,7 +3217,7 @@ version = "0.22.0"
 source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72fb134dea5f9669#8c6ce6eb1228de568568f6cd72fb134dea5f9669"
 dependencies = [
 "either",
- "futures 0.3.6",
+ "futures 0.3.7",
 "libp2p-core 0.22.2",
 "log 0.4.11",
 "rand 0.7.3",
@ -3242,7 +3231,7 @@ name = "libp2p-tcp"
 version = "0.22.0"
 source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72fb134dea5f9669#8c6ce6eb1228de568568f6cd72fb134dea5f9669"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "futures-timer",
 "get_if_addrs",
 "ipnet",
@ -3259,7 +3248,7 @@ source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72
 dependencies = [
 "async-tls",
 "either",
- "futures 0.3.6",
+ "futures 0.3.7",
 "libp2p-core 0.22.2",
 "log 0.4.11",
 "quicksink",
@ -3312,7 +3301,7 @@ dependencies = [
 [[package]]
 name = "lighthouse"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "account_manager",
 "account_utils",
@ -3325,7 +3314,7 @@ dependencies = [
 "env_logger",
 "environment",
 "eth2_testnet_config",
- "futures 0.3.6",
+ "futures 0.3.7",
 "lighthouse_version",
 "logging",
 "slashing_protection",
@ -3481,9 +3470,9 @@ checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 [[package]]
 name = "memchr"
-version = "2.3.3"
+version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
+checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 [[package]]
 name = "memoffset"
@ -3508,11 +3497,11 @@ dependencies = [
 [[package]]
 name = "milagro_bls"
-version = "1.1.0"
+version = "1.4.0"
-source = "git+https://github.com/sigp/milagro_bls?branch=paulh#7662690845f3f2594e46cfe71b6b0bb91d5e1f82"
+source = "git+https://github.com/sigp/milagro_bls?tag=v1.4.0#45a076a776a6f1d9f8157fd2d574bfefaee2c81a"
 dependencies = [
 "amcl",
- "hex 0.4.2",
+ "hex",
 "lazy_static",
 "rand 0.7.3",
 "zeroize",
@ -3683,7 +3672,7 @@ version = "0.8.3"
 source = "git+https://github.com/sigp/rust-libp2p?rev=8c6ce6eb1228de568568f6cd72fb134dea5f9669#8c6ce6eb1228de568568f6cd72fb134dea5f9669"
 dependencies = [
 "bytes 0.5.6",
- "futures 0.3.6",
+ "futures 0.3.7",
 "log 0.4.11",
 "pin-project 0.4.27",
 "smallvec 1.4.2",
@ -3697,7 +3686,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "36a6aa6e32fbaf16795142335967214b8564a7a4661eb6dc846ef343a6e00ac1"
 dependencies = [
 "bytes 0.5.6",
- "futures 0.3.6",
+ "futures 0.3.7",
 "log 0.4.11",
 "pin-project 1.0.1",
 "smallvec 1.4.2",
@ -3744,11 +3733,11 @@ dependencies = [
 "eth2_ssz_types",
 "exit-future",
 "fnv",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
 "get_if_addrs",
 "hashset_delay",
- "hex 0.4.2",
+ "hex",
 "igd",
 "itertools 0.9.0",
 "lazy_static",
@ -3805,7 +3794,7 @@ dependencies = [
 "environment",
 "eth2",
 "eth2_config",
- "futures 0.3.6",
+ "futures 0.3.7",
 "genesis",
 "reqwest",
 "serde",
@ -4273,9 +4262,9 @@ dependencies = [
 [[package]]
 name = "proc-macro-hack"
-version = "0.5.18"
+version = "0.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99c605b9a0adc77b7211c6b1f722dcb613d68d66859a44f3d485a6da332b0598"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 [[package]]
 name = "proc-macro-nested"
@ -4914,7 +4903,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4da5fcb054c46f5a5dff833b129285a93d3f0179531735e6c866e8cc307d2020"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "pin-project 0.4.27",
 "static_assertions",
 ]
@ -5137,7 +5126,7 @@ dependencies = [
 name = "serde_utils"
 version = "0.1.0"
 dependencies = [
- "hex 0.4.2",
+ "hex",
 "serde",
 "serde_derive",
 "serde_json",
@ -5274,7 +5263,7 @@ dependencies = [
 "env_logger",
 "eth1",
 "eth1_test_rig",
- "futures 0.3.6",
+ "futures 0.3.7",
 "node_test_rig",
 "parking_lot 0.11.0",
 "rayon",
@ -5477,7 +5466,7 @@ dependencies = [
 "base64 0.12.3",
 "bytes 0.5.6",
 "flate2",
- "futures 0.3.6",
+ "futures 0.3.7",
 "httparse",
 "log 0.4.11",
 "rand 0.7.3",
@ -5663,9 +5652,9 @@ dependencies = [
 [[package]]
 name = "syn"
-version = "1.0.46"
+version = "1.0.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ad5de3220ea04da322618ded2c42233d02baca219d6f160a3e9c87cda16c942"
+checksum = "cc371affeffc477f42a221a1e4297aedcea33d47d19b61455588bd9d8f6b19ac"
 dependencies = [
 "proc-macro2",
 "quote",
@ -5707,7 +5696,7 @@ name = "task_executor"
 version = "0.1.0"
 dependencies = [
 "exit-future",
- "futures 0.3.6",
+ "futures 0.3.7",
 "lazy_static",
 "lighthouse_metrics",
 "slog",
@ -5866,7 +5855,7 @@ name = "timer"
 version = "0.2.0"
 dependencies = [
 "beacon_chain",
- "futures 0.3.6",
+ "futures 0.3.7",
 "parking_lot 0.11.0",
 "slog",
 "slot_clock",
@ -6469,7 +6458,7 @@ dependencies = [
 "eth2_ssz_derive",
 "eth2_ssz_types",
 "ethereum-types",
- "hex 0.4.2",
+ "hex",
 "int_to_bytes",
 "log 0.4.11",
 "merkle_proof",
@ -6652,7 +6641,7 @@ dependencies = [
 [[package]]
 name = "validator_client"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
 "account_utils",
 "bincode",
@ -6670,8 +6659,8 @@ dependencies = [
 "eth2_ssz",
 "eth2_ssz_derive",
 "exit-future",
- "futures 0.3.6",
+ "futures 0.3.7",
- "hex 0.4.2",
+ "hex",
 "hyper 0.13.8",
 "libc",
 "libsecp256k1",
@ -6709,7 +6698,7 @@ dependencies = [
 "bls",
 "deposit_contract",
 "eth2_keystore",
- "hex 0.4.2",
+ "hex",
 "rand 0.7.3",
 "rayon",
 "slog",
@ -6786,7 +6775,7 @@ version = "0.2.5"
 source = "git+https://github.com/paulhauner/warp?branch=cors-wildcard#a7685b76d70c3e5628e31d60aee510acec3c5c30"
 dependencies = [
 "bytes 0.5.6",
- "futures 0.3.6",
+ "futures 0.3.7",
 "headers",
 "http 0.2.1",
 "hyper 0.13.8",
@ -6932,7 +6921,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be0ecb0db480561e9a7642b5d3e4187c128914e58aa84330b9493e3eb68c5e7f"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "js-sys",
 "parking_lot 0.11.0",
 "pin-utils",
@ -7029,7 +7018,7 @@ dependencies = [
 name = "websocket_server"
 version = "0.2.0"
 dependencies = [
- "futures 0.3.6",
+ "futures 0.3.7",
 "serde",
 "serde_derive",
 "slog",
--- a/2
+++ b/2
@ -42,7 +42,7 @@ endif
 # optimized CPU functions that may not be available on some systems. This
 # results in a more portable binary with ~20% slower BLS verification.
 build-x86_64:
-	cross build --release --manifest-path lighthouse/Cargo.toml --target x86_64-unknown-linux-gnu
+	cross build --release --manifest-path lighthouse/Cargo.toml --target x86_64-unknown-linux-gnu --features modern
 build-x86_64-portable:
 	cross build --release --manifest-path lighthouse/Cargo.toml --target x86_64-unknown-linux-gnu --features portable
 build-aarch64:
--- a/account_manager/Cargo.toml
+++ b/account_manager/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "account_manager"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Paul Hauner <paul@paulhauner.com>", "Luke Anderson <luke@sigmaprime.io>"]
 edition = "2018"
--- a/account_manager/src/validator/slashing_protection.rs
+++ b/account_manager/src/validator/slashing_protection.rs
@ -5,7 +5,7 @@ use slashing_protection::{
 };
 use std::fs::File;
 use std::path::PathBuf;
-use types::EthSpec;
+use types::{BeaconState, EthSpec};
 pub const CMD: &str = "slashing-protection";
 pub const IMPORT_CMD: &str = "import";
@ -46,18 +46,18 @@ pub fn cli_run<T: EthSpec>(
 ) -> Result<(), String> {
    let slashing_protection_db_path = validator_base_dir.join(SLASHING_PROTECTION_FILENAME);
-    let genesis_validators_root = env
+    let testnet_config = env
        .testnet
-        .and_then(|testnet_config| {
+        .ok_or_else(|| "Unable to get testnet configuration from the environment".to_string())?;
-            Some(
+
-                testnet_config
+    let genesis_validators_root = testnet_config
-                    .genesis_state
+        .beacon_state::<T>()
-                    .as_ref()?
+        .map(|state: BeaconState<T>| state.genesis_validators_root)
-                    .genesis_validators_root,
+        .map_err(|e| {
            format!(
                "Unable to get genesis state, has genesis occurred? Detail: {:?}",
                e
            )
        })
        .ok_or_else(|| {
            "Unable to get genesis validators root from testnet config, has genesis occurred?"
        })?;
    match matches.subcommand() {
--- a/beacon_node/Cargo.toml
+++ b/beacon_node/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "beacon_node"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Paul Hauner <paul@paulhauner.com>", "Age Manning <Age@AgeManning.com"]
 edition = "2018"
--- a/beacon_node/client/src/config.rs
+++ b/beacon_node/client/src/config.rs
@ -5,9 +5,6 @@ use std::fs;
 use std::path::PathBuf;
 use types::Graffiti;
 /// The number initial validators when starting the `Minimal`.
 const TESTNET_SPEC_CONSTANTS: &str = "minimal";
 /// Default directory name for the freezer database under the top-level data dir.
 const DEFAULT_FREEZER_DB_DIR: &str = "freezer_db";
@ -46,7 +43,6 @@ pub struct Config {
    /// Path where the freezer database will be located.
    pub freezer_db_path: Option<PathBuf>,
    pub log_file: PathBuf,
    pub spec_constants: String,
    /// If true, the node will use co-ordinated junk for eth1 values.
    ///
    /// This is the method used for the 2019 client interop in Canada.
@ -81,7 +77,6 @@ impl Default for Config {
            network: NetworkConfig::default(),
            chain: <_>::default(),
            websocket_server: <_>::default(),
            spec_constants: TESTNET_SPEC_CONSTANTS.into(),
            dummy_eth1_backend: false,
            sync_eth1_chain: false,
            eth1: <_>::default(),
--- a/beacon_node/src/config.rs
+++ b/beacon_node/src/config.rs
@ -5,8 +5,7 @@ use client::{ClientConfig, ClientGenesis};
 use directory::{DEFAULT_BEACON_NODE_DIR, DEFAULT_NETWORK_DIR, DEFAULT_ROOT_DIR};
 use eth2_libp2p::{multiaddr::Protocol, Enr, Multiaddr, NetworkConfig, PeerIdSerialized};
 use eth2_testnet_config::Eth2TestnetConfig;
-use slog::{crit, info, warn, Logger};
+use slog::{info, warn, Logger};
 use ssz::Encode;
 use std::cmp;
 use std::fs;
 use std::net::{IpAddr, Ipv4Addr, ToSocketAddrs};
@ -23,7 +22,6 @@ use types::{ChainSpec, Checkpoint, Epoch, EthSpec, Hash256, GRAFFITI_BYTES_LEN};
 /// response of some remote server.
 pub fn get_config<E: EthSpec>(
    cli_args: &ArgMatches,
    spec_constants: &str,
    spec: &ChainSpec,
    log: Logger,
 ) -> Result<ClientConfig, String> {
@ -67,8 +65,6 @@ pub fn get_config<E: EthSpec>(
    log_dir.pop();
    info!(log, "Data directory initialised"; "datadir" => log_dir.into_os_string().into_string().expect("Datadir should be a valid os string"));
    client_config.spec_constants = spec_constants.into();
    /*
     * Networking
     */
@ -222,14 +218,6 @@ pub fn get_config<E: EthSpec>(
            .map_err(|_| "block-cache-size is not a valid integer".to_string())?;
    }
    if spec_constants != client_config.spec_constants {
        crit!(log, "Specification constants do not match.";
              "client_config" => client_config.spec_constants,
              "eth2_config" => spec_constants
        );
        return Err("Specification constant mismatch".into());
    }
    /*
     * Zero-ports
     *
@ -255,7 +243,7 @@ pub fn get_config<E: EthSpec>(
    /*
     * Load the eth2 testnet dir to obtain some additional config values.
     */
-    let eth2_testnet_config: Eth2TestnetConfig<E> = get_eth2_testnet_config(&cli_args)?;
+    let eth2_testnet_config = get_eth2_testnet_config(&cli_args)?;
    client_config.eth1.deposit_contract_address =
        format!("{:?}", eth2_testnet_config.deposit_contract_address()?);
@ -275,12 +263,12 @@ pub fn get_config<E: EthSpec>(
        client_config.network.boot_nodes_enr.append(&mut boot_nodes)
    }
-    if let Some(genesis_state) = eth2_testnet_config.genesis_state {
+    if let Some(genesis_state_bytes) = eth2_testnet_config.genesis_state_bytes {
        // Note: re-serializing the genesis state is not so efficient, however it avoids adding
        // trait bounds to the `ClientGenesis` enum. This would have significant flow-on
        // effects.
        client_config.genesis = ClientGenesis::SszBytes {
-            genesis_state_bytes: genesis_state.as_ssz_bytes(),
+            genesis_state_bytes,
        };
    } else {
        client_config.genesis = ClientGenesis::DepositContract;
@ -545,9 +533,7 @@ pub fn get_data_dir(cli_args: &ArgMatches) -> PathBuf {
 /// Try to parse the eth2 testnet config from the `testnet`, `testnet-dir` flags in that order.
 /// Returns the default hardcoded testnet if neither flags are set.
-pub fn get_eth2_testnet_config<E: EthSpec>(
+pub fn get_eth2_testnet_config(cli_args: &ArgMatches) -> Result<Eth2TestnetConfig, String> {
    cli_args: &ArgMatches,
 ) -> Result<Eth2TestnetConfig<E>, String> {
    let optional_testnet_config = if cli_args.is_present("testnet") {
        clap_utils::parse_hardcoded_network(cli_args, "testnet")?
    } else if cli_args.is_present("testnet-dir") {
--- a/beacon_node/src/lib.rs
+++ b/beacon_node/src/lib.rs
@ -53,12 +53,8 @@ impl<E: EthSpec> ProductionBeaconNode<E> {
        context: RuntimeContext<E>,
        matches: ArgMatches<'static>,
    ) -> Result<Self, String> {
-        let client_config = get_config::<E>(
+        let client_config =
-            &matches,
+            get_config::<E>(&matches, &context.eth2_config().spec, context.log().clone())?;
            &context.eth2_config.spec_constants,
            &context.eth2_config().spec,
            context.log().clone(),
        )?;
        Self::new(context, client_config).await
    }
--- a/book/src/cross-compiling.md
+++ b/book/src/cross-compiling.md
@ -18,17 +18,15 @@ project.
 The `Makefile` in the project contains four targets for cross-compiling:
- `build-x86_64`: builds an optimized version for x86_64 processors (suitable
+- `build-x86_64`: builds an optimized version for x86_64 processors (suitable for most users).
-	for most users).
+  Supports Intel Broadwell (2014) and newer, and AMD Ryzen (2017) and newer.
- `build-x86_64-portable`: builds a version x86_64 processors which avoids
+- `build-x86_64-portable`: builds a version for x86_64 processors which avoids using some modern CPU
-	using some modern CPU instructions that might cause an "illegal
+  instructions that are incompatible with older CPUs. Suitable for pre-Broadwell/Ryzen CPUs.
-	instruction" error on older CPUs.
+- `build-aarch64`: builds an optimized version for 64-bit ARM processors
 - `build-aarch64`: builds an optimized version for 64bit ARM processors
 	(suitable for Raspberry Pi 4).
- `build-aarch64-portable`: builds a version 64 bit ARM processors which avoids
+- `build-aarch64-portable`: builds a version for 64-bit ARM processors which avoids using some
-	using some modern CPU instructions that might cause an "illegal
+  modern CPU instructions. In practice, very few ARM processors lack the instructions necessary to
-	instruction" error on older CPUs.
+  run the faster non-portable build.
 ### Example
--- a/book/src/validator-create.md
+++ b/book/src/validator-create.md
@ -43,9 +43,6 @@ OPTIONS:
        --secrets-dir <SECRETS_DIR>
            The path where the validator keystore passwords will be stored. Defaults to ~/.lighthouse/{testnet}/secrets
    -s, --spec <TITLE>
            Specifies the default eth2 spec type. [default: mainnet]  [possible values: mainnet, minimal, interop]
        --testnet <testnet>
            Name of network lighthouse will connect to [possible values: medalla, altona]
@ -81,4 +78,4 @@ This command will:
 		`--testnet` CLI param.
 - Store a password to the validators voting keypair in `~/.lighthouse/{testnet}/secrets`.
-where `testnet` is the name of the testnet passed in the `--testnet` parameter (default is `medalla`).
+where `testnet` is the name of the testnet passed in the `--testnet` parameter (default is `medalla`).
--- a/book/src/wallet-create.md
+++ b/book/src/wallet-create.md
@ -43,9 +43,6 @@ OPTIONS:
            A path to a file containing the password which will unlock the wallet. If the file does not exist, a random
            password will be generated and saved at that path. To avoid confusion, if the file does not already exist it
            must include a '.pass' suffix.
    -s, --spec <TITLE>
            Specifies the default eth2 spec type. [default: mainnet]  [possible values: mainnet, minimal, interop]
    -t, --testnet-dir <DIR>
            Path to directory containing eth2_testnet specs. Defaults to a hard-coded Lighthouse testnet. Only effective
            if there is no existing database.
--- a/boot_node/Cargo.toml
+++ b/boot_node/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "boot_node"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2018"
--- a/boot_node/src/config.rs
+++ b/boot_node/src/config.rs
@ -5,7 +5,6 @@ use eth2_libp2p::{
    discovery::{create_enr_builder_from_config, use_or_load_enr},
    load_private_key, CombinedKeyExt, NetworkConfig,
 };
 use eth2_testnet_config::Eth2TestnetConfig;
 use ssz::Encode;
 use std::convert::TryFrom;
 use std::marker::PhantomData;
@ -30,7 +29,7 @@ impl<T: EthSpec> TryFrom<&ArgMatches<'_>> for BootNodeConfig<T> {
        let data_dir = get_data_dir(matches);
        // Try and grab testnet config from input CLI params
-        let eth2_testnet_config: Option<Eth2TestnetConfig<T>> = {
+        let eth2_testnet_config = {
            if matches.is_present("testnet") {
                Some(get_eth2_testnet_config(&matches)?)
            } else {
@ -95,7 +94,9 @@ impl<T: EthSpec> TryFrom<&ArgMatches<'_>> for BootNodeConfig<T> {
                .apply_to_chain_spec::<T>(&T::default_spec())
                .ok_or_else(|| "The loaded config is not compatible with the current spec")?;
-            if let Some(genesis_state) = config.genesis_state.as_ref() {
+            if config.beacon_state_is_known() {
                let genesis_state = config.beacon_state::<T>()?;
                slog::info!(logger, "Genesis state found"; "root" => genesis_state.canonical_root().to_string());
                let enr_fork = spec.enr_fork_id(
                    types::Slot::from(0u64),
--- a/boot_node/src/lib.rs
+++ b/boot_node/src/lib.rs
@ -8,12 +8,12 @@ mod config;
 mod server;
 pub use cli::cli_app;
 use config::BootNodeConfig;
-use types::EthSpec;
+use types::{EthSpec, EthSpecId};
 const LOG_CHANNEL_SIZE: usize = 2048;
 /// Run the bootnode given the CLI configuration.
-pub fn run(matches: &ArgMatches<'_>, debug_level: String) {
+pub fn run(matches: &ArgMatches<'_>, eth_spec_id: EthSpecId, debug_level: String) {
    let debug_level = match debug_level.as_str() {
        "trace" => log::Level::Trace,
        "debug" => log::Level::Debug,
@ -48,11 +48,10 @@ pub fn run(matches: &ArgMatches<'_>, debug_level: String) {
    let log = slog_scope::logger();
    // Run the main function emitting any errors
-    if let Err(e) = match matches.value_of("spec") {
+    if let Err(e) = match eth_spec_id {
-        Some("minimal") => main::<types::MinimalEthSpec>(matches, log),
+        EthSpecId::Minimal => main::<types::MinimalEthSpec>(matches, log),
-        Some("mainnet") => main::<types::MainnetEthSpec>(matches, log),
+        EthSpecId::Mainnet => main::<types::MainnetEthSpec>(matches, log),
-        Some("interop") => main::<types::InteropEthSpec>(matches, log),
+        EthSpecId::V012Legacy => main::<types::V012LegacyEthSpec>(matches, log),
        spec => unreachable!("Unknown spec configuration: {:?}", spec),
    } {
        slog::crit!(slog_scope::logger(), "{}", e);
    }
--- a/common/clap_utils/src/lib.rs
+++ b/common/clap_utils/src/lib.rs
@ -5,7 +5,6 @@ use eth2_testnet_config::Eth2TestnetConfig;
 use ssz::Decode;
 use std::path::PathBuf;
 use std::str::FromStr;
 use types::EthSpec;
 pub const BAD_TESTNET_DIR_MESSAGE: &str = "The hard-coded testnet directory was invalid. \
                                        This happens when Lighthouse is migrating between spec versions \
@ -14,10 +13,10 @@ pub const BAD_TESTNET_DIR_MESSAGE: &str = "The hard-coded testnet directory was
 /// Attempts to load the testnet dir at the path if `name` is in `matches`, returning an error if
 /// the path cannot be found or the testnet dir is invalid.
-pub fn parse_testnet_dir<E: EthSpec>(
+pub fn parse_testnet_dir(
    matches: &ArgMatches,
    name: &'static str,
-) -> Result<Option<Eth2TestnetConfig<E>>, String> {
+) -> Result<Option<Eth2TestnetConfig>, String> {
    let path = parse_required::<PathBuf>(matches, name)?;
    Eth2TestnetConfig::load(path.clone())
        .map_err(|e| format!("Unable to open testnet dir at {:?}: {}", path, e))
@ -26,10 +25,10 @@ pub fn parse_testnet_dir<E: EthSpec>(
 /// Attempts to load a hardcoded network config if `name` is in `matches`, returning an error if
 /// the name is not a valid network name.
-pub fn parse_hardcoded_network<E: EthSpec>(
+pub fn parse_hardcoded_network(
    matches: &ArgMatches,
    name: &str,
-) -> Result<Option<Eth2TestnetConfig<E>>, String> {
+) -> Result<Option<Eth2TestnetConfig>, String> {
    let network_name = parse_required::<String>(matches, name)?;
    Eth2TestnetConfig::constant(network_name.as_str())
 }
--- a/common/eth2_config/src/lib.rs
+++ b/common/eth2_config/src/lib.rs
@ -1,7 +1,7 @@
 use serde_derive::{Deserialize, Serialize};
 use std::env;
 use std::path::PathBuf;
-use types::ChainSpec;
+use types::{ChainSpec, EthSpecId};
 // A macro is used to define this constant so it can be used with `include_bytes!`.
 #[macro_export]
@ -19,14 +19,14 @@ pub const GENESIS_ZIP_FILE_NAME: &str = "genesis.ssz.zip";
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(default)]
 pub struct Eth2Config {
-    pub spec_constants: String,
+    pub eth_spec_id: EthSpecId,
    pub spec: ChainSpec,
 }
 impl Default for Eth2Config {
    fn default() -> Self {
        Self {
-            spec_constants: "minimal".to_string(),
+            eth_spec_id: EthSpecId::Minimal,
            spec: ChainSpec::minimal(),
        }
    }
@ -35,22 +35,22 @@ impl Default for Eth2Config {
 impl Eth2Config {
    pub fn mainnet() -> Self {
        Self {
-            spec_constants: "mainnet".to_string(),
+            eth_spec_id: EthSpecId::Mainnet,
            spec: ChainSpec::mainnet(),
        }
    }
    pub fn minimal() -> Self {
        Self {
-            spec_constants: "minimal".to_string(),
+            eth_spec_id: EthSpecId::Minimal,
            spec: ChainSpec::minimal(),
        }
    }
-    pub fn interop() -> Self {
+    pub fn v012_legacy() -> Self {
        Self {
-            spec_constants: "interop".to_string(),
+            eth_spec_id: EthSpecId::V012Legacy,
-            spec: ChainSpec::interop(),
+            spec: ChainSpec::v012_legacy(),
        }
    }
 }
--- a/common/eth2_testnet_config/built_in_testnet_configs/altona/config.yaml
+++ b/common/eth2_testnet_config/built_in_testnet_configs/altona/config.yaml
@ -1,3 +1,4 @@
 CONFIG_NAME: "altona"
 MAX_COMMITTEES_PER_SLOT: 64
 TARGET_COMMITTEE_SIZE: 128
 MAX_VALIDATORS_PER_COMMITTEE: 2048
@ -56,3 +57,4 @@ DOMAIN_SELECTION_PROOF: 0x05000000
 DOMAIN_AGGREGATE_AND_PROOF: 0x06000000
 DEPOSIT_CHAIN_ID: 5
 DEPOSIT_NETWORK_ID: 5
 PROPORTIONAL_SLASHING_MULTIPLIER: 3
--- a/common/eth2_testnet_config/built_in_testnet_configs/medalla/config.yaml
+++ b/common/eth2_testnet_config/built_in_testnet_configs/medalla/config.yaml
@ -1,3 +1,4 @@
 CONFIG_NAME: "medalla"
 MAX_COMMITTEES_PER_SLOT: 64
 TARGET_COMMITTEE_SIZE: 128
 MAX_VALIDATORS_PER_COMMITTEE: 2048
@ -56,3 +57,4 @@ DOMAIN_SELECTION_PROOF: 0x05000000
 DOMAIN_AGGREGATE_AND_PROOF: 0x06000000
 DEPOSIT_CHAIN_ID: 5
 DEPOSIT_NETWORK_ID: 5
 PROPORTIONAL_SLASHING_MULTIPLIER: 3
--- a/common/eth2_testnet_config/built_in_testnet_configs/spadina/config.yaml
+++ b/common/eth2_testnet_config/built_in_testnet_configs/spadina/config.yaml
@ -1,3 +1,4 @@
 CONFIG_NAME: "spadina"
 MAX_COMMITTEES_PER_SLOT: 64
 TARGET_COMMITTEE_SIZE: 128
 MAX_VALIDATORS_PER_COMMITTEE: 2048
--- a/common/eth2_testnet_config/src/lib.rs
+++ b/common/eth2_testnet_config/src/lib.rs
@ -13,11 +13,11 @@ use eth2_config::{
 };
 use enr::{CombinedKey, Enr};
-use ssz::{Decode, Encode};
+use ssz::Decode;
 use std::fs::{create_dir_all, File};
 use std::io::{Read, Write};
 use std::path::PathBuf;
-use types::{Address, BeaconState, EthSpec, YamlConfig};
+use types::{Address, BeaconState, EthSpec, EthSpecId, YamlConfig};
 pub const ADDRESS_FILE: &str = "deposit_contract.txt";
 pub const DEPLOY_BLOCK_FILE: &str = "deploy_block.txt";
@ -33,7 +33,7 @@ pub struct HardcodedNet {
    pub deploy_block: &'static [u8],
    pub boot_enr: &'static [u8],
    pub deposit_contract_address: &'static [u8],
-    pub genesis_state: &'static [u8],
+    pub genesis_state_bytes: &'static [u8],
 }
 macro_rules! define_net {
@ -47,7 +47,7 @@ macro_rules! define_net {
            deploy_block: $include_file!("../", "deploy_block.txt"),
            boot_enr: $include_file!("../", "boot_enr.yaml"),
            deposit_contract_address: $include_file!("../", "deposit_contract.txt"),
-            genesis_state: $include_file!("../", "genesis.ssz"),
+            genesis_state_bytes: $include_file!("../", "genesis.ssz"),
        }
    }};
 }
@ -64,15 +64,15 @@ pub const DEFAULT_HARDCODED_TESTNET: &str = "medalla";
 ///
 /// See the crate-level documentation for more details.
 #[derive(Clone, PartialEq, Debug)]
-pub struct Eth2TestnetConfig<E: EthSpec> {
+pub struct Eth2TestnetConfig {
    pub deposit_contract_address: String,
    pub deposit_contract_deploy_block: u64,
    pub boot_enr: Option<Vec<Enr<CombinedKey>>>,
-    pub genesis_state: Option<BeaconState<E>>,
+    pub genesis_state_bytes: Option<Vec<u8>>,
    pub yaml_config: Option<YamlConfig>,
 }
-impl<E: EthSpec> Eth2TestnetConfig<E> {
+impl Eth2TestnetConfig {
    /// Returns the default hard coded testnet.
    pub fn hard_coded_default() -> Result<Option<Self>, String> {
        Self::constant(DEFAULT_HARDCODED_TESTNET)
@ -89,15 +89,6 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
    /// Instantiates `Self` from a `HardcodedNet`.
    fn from_hardcoded_net(net: &HardcodedNet) -> Result<Self, String> {
        let genesis_state = if net.genesis_state.is_empty() {
            None
        } else {
            Some(
                BeaconState::from_ssz_bytes(net.genesis_state)
                    .map_err(|e| format!("Unable to parse genesis state: {:?}", e))?,
            )
        };
        Ok(Self {
            deposit_contract_address: serde_yaml::from_reader(net.deposit_contract_address)
                .map_err(|e| format!("Unable to parse contract address: {:?}", e))?,
@ -107,7 +98,8 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
                serde_yaml::from_reader(net.boot_enr)
                    .map_err(|e| format!("Unable to parse boot enr: {:?}", e))?,
            ),
-            genesis_state,
+            genesis_state_bytes: Some(net.genesis_state_bytes.to_vec())
                .filter(|bytes| !bytes.is_empty()),
            yaml_config: Some(
                serde_yaml::from_reader(net.yaml_config)
                    .map_err(|e| format!("Unable to parse yaml config: {:?}", e))?,
@ -115,9 +107,38 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
        })
    }
-    // Write the files to the directory.
+    /// Returns an identifier that should be used for selecting an `EthSpec` instance for this
-    //
+    /// testnet.
-    // Overwrites files if specified to do so.
+    pub fn eth_spec_id(&self) -> Result<EthSpecId, String> {
        self.yaml_config
            .as_ref()
            .ok_or_else(|| "YAML specification file missing".to_string())
            .and_then(|config| {
                config
                    .eth_spec_id()
                    .ok_or_else(|| format!("Unknown CONFIG_NAME: {}", config.config_name))
            })
    }
    /// Returns `true` if this configuration contains a `BeaconState`.
    pub fn beacon_state_is_known(&self) -> bool {
        self.genesis_state_bytes.is_some()
    }
    /// Attempts to deserialize `self.beacon_state`, returning an error if it's missing or invalid.
    pub fn beacon_state<E: EthSpec>(&self) -> Result<BeaconState<E>, String> {
        let genesis_state_bytes = self
            .genesis_state_bytes
            .as_ref()
            .ok_or_else(|| "Genesis state is unknown".to_string())?;
        BeaconState::from_ssz_bytes(genesis_state_bytes)
            .map_err(|e| format!("Genesis state SSZ bytes are invalid: {:?}", e))
    }
    /// Write the files to the directory.
    ///
    /// Overwrites files if specified to do so.
    pub fn write_to_file(&self, base_dir: PathBuf, overwrite: bool) -> Result<(), String> {
        if base_dir.exists() && !overwrite {
            return Err("Testnet directory already exists".to_string());
@ -126,7 +147,7 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
        self.force_write_to_file(base_dir)
    }
-    // Write the files to the directory, even if the directory already exists.
+    /// Write the files to the directory, even if the directory already exists.
    pub fn force_write_to_file(&self, base_dir: PathBuf) -> Result<(), String> {
        create_dir_all(&base_dir)
            .map_err(|e| format!("Unable to create testnet directory: {:?}", e))?;
@ -167,13 +188,13 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
        }
        // The genesis state is a special case because it uses SSZ, not YAML.
-        if let Some(genesis_state) = &self.genesis_state {
+        if let Some(genesis_state_bytes) = &self.genesis_state_bytes {
            let file = base_dir.join(GENESIS_STATE_FILE);
            File::create(&file)
                .map_err(|e| format!("Unable to create {:?}: {:?}", file, e))
                .and_then(|mut file| {
-                    file.write_all(&genesis_state.as_ssz_bytes())
+                    file.write_all(genesis_state_bytes)
                        .map_err(|e| format!("Unable to write {:?}: {:?}", file, e))
                })?;
        }
@ -210,19 +231,15 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
        // The genesis state is a special case because it uses SSZ, not YAML.
        let genesis_file_path = base_dir.join(GENESIS_STATE_FILE);
-        let genesis_state = if genesis_file_path.exists() {
+        let genesis_state_bytes = if genesis_file_path.exists() {
-            Some(
+            let mut bytes = vec![];
-                File::open(&genesis_file_path)
+            File::open(&genesis_file_path)
-                    .map_err(|e| format!("Unable to open {:?}: {:?}", genesis_file_path, e))
+                .map_err(|e| format!("Unable to open {:?}: {:?}", genesis_file_path, e))
-                    .and_then(|mut file| {
+                .and_then(|mut file| {
-                        let mut bytes = vec![];
+                    file.read_to_end(&mut bytes)
-                        file.read_to_end(&mut bytes)
+                        .map_err(|e| format!("Unable to read {:?}: {:?}", file, e))
-                            .map_err(|e| format!("Unable to read {:?}: {:?}", file, e))?;
+                })?;
-
+            Some(bytes)
                        BeaconState::from_ssz_bytes(&bytes)
                            .map_err(|e| format!("Unable to SSZ decode {:?}: {:?}", file, e))
                    })?,
            )
        } else {
            None
        };
@ -231,7 +248,7 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
            deposit_contract_address,
            deposit_contract_deploy_block,
            boot_enr,
-            genesis_state,
+            genesis_state_bytes,
            yaml_config,
        })
    }
@ -250,18 +267,28 @@ impl<E: EthSpec> Eth2TestnetConfig<E> {
 #[cfg(test)]
 mod tests {
    use super::*;
    use ssz::Encode;
    use tempdir::TempDir;
-    use types::{Eth1Data, Hash256, MainnetEthSpec, YamlConfig};
+    use types::{Eth1Data, Hash256, V012LegacyEthSpec, YamlConfig};
-    type E = MainnetEthSpec;
+    type E = V012LegacyEthSpec;
    #[test]
    fn hard_coded_nets_work() {
        for net in HARDCODED_NETS {
            let config =
-                Eth2TestnetConfig::<E>::from_hardcoded_net(net).expect(&format!("{:?}", net.name));
+                Eth2TestnetConfig::from_hardcoded_net(net).expect(&format!("{:?}", net.name));
            // Ensure we can parse the YAML config to a chain spec.
            config
                .yaml_config
                .as_ref()
                .unwrap()
                .apply_to_chain_spec::<E>(&E::default_spec())
                .unwrap();
            assert_eq!(
-                config.genesis_state.is_some(),
+                config.genesis_state_bytes.is_some(),
                net.genesis_is_known,
                "{:?}",
                net.name
@ -298,11 +325,11 @@ mod tests {
        let deposit_contract_address = "0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".to_string();
        let deposit_contract_deploy_block = 42;
-        let testnet: Eth2TestnetConfig<E> = Eth2TestnetConfig {
+        let testnet: Eth2TestnetConfig = Eth2TestnetConfig {
            deposit_contract_address,
            deposit_contract_deploy_block,
            boot_enr,
-            genesis_state,
+            genesis_state_bytes: genesis_state.as_ref().map(Encode::as_ssz_bytes),
            yaml_config,
        };
--- a/common/lighthouse_version/src/lib.rs
+++ b/common/lighthouse_version/src/lib.rs
@ -10,7 +10,7 @@ use target_info::Target;
 /// `Lighthouse/v0.2.0-1419501f2+`
 pub const VERSION: &str = git_version!(
    args = ["--always", "--dirty=+"],
-    prefix = "Lighthouse/v0.3.1-",
+    prefix = "Lighthouse/v0.3.2-",
    fallback = "unknown"
 );
--- a/common/task_executor/Cargo.toml
+++ b/common/task_executor/Cargo.toml
@ -5,7 +5,7 @@ authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2018"
 [dependencies]
-tokio = "0.2.22"
+tokio = { version = "0.2.22", features = ["rt-threaded", "macros", "blocking"] }
 slog = "2.5.2"
 futures = "0.3.5"
 exit-future = "0.2.0"
--- a/consensus/types/src/chain_spec.rs
+++ b/consensus/types/src/chain_spec.rs
@ -264,7 +264,6 @@ impl ChainSpec {
            hysteresis_quotient: 4,
            hysteresis_downward_multiplier: 1,
            hysteresis_upward_multiplier: 5,
            proportional_slashing_multiplier: 3,
            /*
             *  Gwei values
@ -283,7 +282,7 @@ impl ChainSpec {
            /*
             * Time parameters
             */
-            genesis_delay: 172800, // 2 days
+            genesis_delay: 604800, // 7 days
            milliseconds_per_slot: 12_000,
            min_attestation_inclusion_delay: 1,
            min_seed_lookahead: Epoch::new(1),
@ -298,8 +297,9 @@ impl ChainSpec {
            base_reward_factor: 64,
            whistleblower_reward_quotient: 512,
            proposer_reward_quotient: 8,
-            inactivity_penalty_quotient: u64::pow(2, 24),
+            inactivity_penalty_quotient: u64::pow(2, 26),
-            min_slashing_penalty_quotient: 32,
+            min_slashing_penalty_quotient: 128,
            proportional_slashing_multiplier: 1,
            /*
             * Signature domains
@ -320,7 +320,7 @@ impl ChainSpec {
            /*
             * Eth1
             */
-            eth1_follow_distance: 1_024,
+            eth1_follow_distance: 2048,
            seconds_per_eth1_block: 14,
            deposit_chain_id: 1,
            deposit_network_id: 1,
@ -359,6 +359,9 @@ impl ChainSpec {
            shard_committee_period: 64,
            genesis_delay: 300,
            milliseconds_per_slot: 6_000,
            inactivity_penalty_quotient: u64::pow(2, 25),
            min_slashing_penalty_quotient: 64,
            proportional_slashing_multiplier: 2,
            safe_slots_to_update_justified: 2,
            network_id: 2, // lighthouse testnet network id
            deposit_chain_id: 5,
@ -368,17 +371,19 @@ impl ChainSpec {
        }
    }
-    /// Interop testing spec
+    /// Suits the `v0.12.3` version of the eth2 spec:
    /// https://github.com/ethereum/eth2.0-specs/blob/v0.12.3/configs/mainnet/phase0.yaml
    ///
-    /// This allows us to customize a chain spec for interop testing.
+    /// This method only needs to exist whilst we provide support for "legacy" testnets prior to v1.0.0
-    pub fn interop() -> Self {
+    /// (e.g., Medalla, Zinken, Spadina, Altona, etc.).
    pub fn v012_legacy() -> Self {
        let boot_nodes = vec![];
        Self {
-            milliseconds_per_slot: 12_000,
+            genesis_delay: 172_800, // 2 days
-            target_committee_size: 4,
+            inactivity_penalty_quotient: u64::pow(2, 24),
-            shuffle_round_count: 10,
+            min_slashing_penalty_quotient: 32,
-            network_id: 13,
+            eth1_follow_distance: 1024,
            boot_nodes,
            ..ChainSpec::mainnet()
        }
@ -448,8 +453,7 @@ mod tests {
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 #[serde(rename_all = "UPPERCASE", deny_unknown_fields)]
 pub struct YamlConfig {
-    #[serde(default)]
+    pub config_name: String,
    config_name: String,
    // ChainSpec
    #[serde(with = "serde_utils::quoted_u64")]
    max_committees_per_slot: u64,
@ -481,10 +485,6 @@ pub struct YamlConfig {
    hysteresis_downward_multiplier: u64,
    #[serde(with = "serde_utils::quoted_u64")]
    hysteresis_upward_multiplier: u64,
    // Proportional slashing multiplier defaults to 3 for compatibility with Altona and Medalla.
    #[serde(default = "default_proportional_slashing_multiplier")]
    #[serde(with = "serde_utils::quoted_u64")]
    proportional_slashing_multiplier: u64,
    #[serde(with = "serde_utils::bytes_4_hex")]
    genesis_fork_version: [u8; 4],
    #[serde(with = "serde_utils::u8_hex")]
@ -514,6 +514,8 @@ pub struct YamlConfig {
    #[serde(with = "serde_utils::quoted_u64")]
    min_slashing_penalty_quotient: u64,
    #[serde(with = "serde_utils::quoted_u64")]
    proportional_slashing_multiplier: u64,
    #[serde(with = "serde_utils::quoted_u64")]
    safe_slots_to_update_justified: u64,
    #[serde(with = "serde_utils::u32_hex")]
@ -575,11 +577,6 @@ pub struct YamlConfig {
    deposit_contract_address: Address,
 }
 // Compatibility shim for proportional slashing multpilier on Altona and Medalla.
 fn default_proportional_slashing_multiplier() -> u64 {
    3
 }
 impl Default for YamlConfig {
    fn default() -> Self {
        let chain_spec = MainnetEthSpec::default_spec();
@ -594,6 +591,21 @@ fn milliseconds_to_seconds(millis: u64) -> u64 {
 /// Spec v0.12.1
 impl YamlConfig {
    /// Maps `self.config_name` to an identifier for an `EthSpec` instance.
    ///
    /// Returns `None` if there is no match.
    pub fn eth_spec_id(&self) -> Option<EthSpecId> {
        Some(match self.config_name.as_str() {
            "mainnet" => EthSpecId::Mainnet,
            "minimal" => EthSpecId::Minimal,
            "zinken" => EthSpecId::V012Legacy,
            "spadina" => EthSpecId::V012Legacy,
            "medalla" => EthSpecId::V012Legacy,
            "altona" => EthSpecId::V012Legacy,
            _ => return None,
        })
    }
    pub fn from_spec<T: EthSpec>(spec: &ChainSpec) -> Self {
        Self {
            config_name: T::spec_name().to_string(),
--- a/consensus/types/src/eth_spec.rs
+++ b/consensus/types/src/eth_spec.rs
@ -6,7 +6,45 @@ use ssz_types::typenum::{
    Unsigned, U0, U1024, U1099511627776, U128, U16, U16777216, U2, U2048, U32, U4, U4096, U64,
    U65536, U8, U8192,
 };
-use std::fmt::Debug;
+use std::fmt::{self, Debug};
 use std::str::FromStr;
 const MAINNET: &str = "mainnet";
 const MINIMAL: &str = "minimal";
 const LEGACY: &str = "v0.12-legacy";
 /// Used to identify one of the `EthSpec` instances defined here.
 #[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "lowercase")]
 pub enum EthSpecId {
    Mainnet,
    Minimal,
    V012Legacy,
 }
 impl FromStr for EthSpecId {
    type Err = String;
    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
            MAINNET => Ok(EthSpecId::Mainnet),
            MINIMAL => Ok(EthSpecId::Minimal),
            LEGACY => Ok(EthSpecId::V012Legacy),
            _ => Err(format!("Unknown eth spec: {}", s)),
        }
    }
 }
 impl fmt::Display for EthSpecId {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let s = match self {
            EthSpecId::Mainnet => MAINNET,
            EthSpecId::Minimal => MINIMAL,
            EthSpecId::V012Legacy => LEGACY,
        };
        write!(f, "{}", s)
    }
 }
 pub trait EthSpec: 'static + Default + Sync + Send + Clone + Debug + PartialEq + Eq {
    /*
@ -56,7 +94,7 @@ pub trait EthSpec: 'static + Default + Sync + Send + Clone + Debug + PartialEq +
    fn default_spec() -> ChainSpec;
-    fn spec_name() -> &'static str;
+    fn spec_name() -> EthSpecId;
    fn genesis_epoch() -> Epoch {
        Epoch::new(Self::GenesisEpoch::to_u64())
@ -144,7 +182,7 @@ impl EthSpec for MainnetEthSpec {
    type MaxValidatorsPerCommittee = U2048;
    type GenesisEpoch = U0;
    type SlotsPerEpoch = U32;
-    type EpochsPerEth1VotingPeriod = U32;
+    type EpochsPerEth1VotingPeriod = U64;
    type SlotsPerHistoricalRoot = U8192;
    type EpochsPerHistoricalVector = U65536;
    type EpochsPerSlashingsVector = U8192;
@ -156,14 +194,14 @@ impl EthSpec for MainnetEthSpec {
    type MaxDeposits = U16;
    type MaxVoluntaryExits = U16;
    type MaxPendingAttestations = U4096; // 128 max attestations * 32 slots per epoch
-    type SlotsPerEth1VotingPeriod = U1024; // 32 epochs * 32 slots per epoch
+    type SlotsPerEth1VotingPeriod = U2048; // 64 epochs * 32 slots per epoch
    fn default_spec() -> ChainSpec {
        ChainSpec::mainnet()
    }
-    fn spec_name() -> &'static str {
+    fn spec_name() -> EthSpecId {
-        "mainnet"
+        EthSpecId::Mainnet
    }
 }
@ -203,28 +241,32 @@ impl EthSpec for MinimalEthSpec {
        ChainSpec::minimal()
    }
-    fn spec_name() -> &'static str {
+    fn spec_name() -> EthSpecId {
-        "minimal"
+        EthSpecId::Minimal
    }
 }
 pub type MinimalBeaconState = BeaconState<MinimalEthSpec>;
-/// Interop testnet spec
+/// Suits the `v0.12.3` version of the eth2 spec:
 /// https://github.com/ethereum/eth2.0-specs/blob/v0.12.3/configs/mainnet/phase0.yaml
 ///
 /// This struct only needs to exist whilst we provide support for "legacy" testnets prior to v1.0.0
 /// (e.g., Medalla, Zinken, Spadina, Altona, etc.).
 #[cfg_attr(feature = "arbitrary-fuzz", derive(arbitrary::Arbitrary))]
 #[derive(Clone, PartialEq, Eq, Debug, Default, Serialize, Deserialize)]
-pub struct InteropEthSpec;
+pub struct V012LegacyEthSpec;
-impl EthSpec for InteropEthSpec {
+impl EthSpec for V012LegacyEthSpec {
-    type SlotsPerEpoch = U8;
+    type EpochsPerEth1VotingPeriod = U32;
-    type EpochsPerEth1VotingPeriod = U2;
+    type SlotsPerEth1VotingPeriod = U1024; // 32 epochs * 32 slots per epoch
    type SlotsPerHistoricalRoot = U64;
    type EpochsPerHistoricalVector = U64;
    type EpochsPerSlashingsVector = U64;
    type MaxPendingAttestations = U1024; // 128 max attestations * 8 slots per epoch
    type SlotsPerEth1VotingPeriod = U16; // 2 epochs * 8 slots per epoch
    params_from_eth_spec!(MainnetEthSpec {
        SlotsPerEpoch,
        SlotsPerHistoricalRoot,
        EpochsPerHistoricalVector,
        EpochsPerSlashingsVector,
        MaxPendingAttestations,
        JustificationBitsLength,
        SubnetBitfieldLength,
        MaxValidatorsPerCommittee,
@ -239,12 +281,10 @@ impl EthSpec for InteropEthSpec {
    });
    fn default_spec() -> ChainSpec {
-        ChainSpec::interop()
+        ChainSpec::v012_legacy()
    }
-    fn spec_name() -> &'static str {
+    fn spec_name() -> EthSpecId {
-        "interop"
+        EthSpecId::V012Legacy
    }
 }
 pub type InteropBeaconState = BeaconState<InteropEthSpec>;
--- a/consensus/types/src/lib.rs
+++ b/consensus/types/src/lib.rs
@ -73,6 +73,7 @@ pub use crate::deposit_data::DepositData;
 pub use crate::deposit_message::DepositMessage;
 pub use crate::enr_fork_id::EnrForkId;
 pub use crate::eth1_data::Eth1Data;
 pub use crate::eth_spec::EthSpecId;
 pub use crate::fork::Fork;
 pub use crate::fork_data::ForkData;
 pub use crate::free_attestation::FreeAttestation;
--- a/consensus/types/src/signed_beacon_block.rs
+++ b/consensus/types/src/signed_beacon_block.rs
@ -8,6 +8,7 @@ use ssz_derive::{Decode, Encode};
 use std::fmt;
 use test_random_derive::TestRandom;
 use tree_hash::TreeHash;
 use tree_hash_derive::TreeHash;
 #[cfg_attr(feature = "arbitrary-fuzz", derive(arbitrary::Arbitrary))]
 #[derive(PartialEq, Eq, Hash, Clone, Copy)]
@ -41,7 +42,7 @@ impl From<SignedBeaconBlockHash> for Hash256 {
 ///
 /// Spec v0.12.1
 #[cfg_attr(feature = "arbitrary-fuzz", derive(arbitrary::Arbitrary))]
-#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Encode, Decode, TestRandom)]
+#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Encode, Decode, TreeHash, TestRandom)]
 #[serde(bound = "E: EthSpec")]
 pub struct SignedBeaconBlock<E: EthSpec> {
    pub message: BeaconBlock<E>,
--- a/crypto/bls/Cargo.toml
+++ b/crypto/bls/Cargo.toml
@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 eth2_ssz = "0.1.2"
 tree_hash = "0.1.1"
-milagro_bls = { git = "https://github.com/sigp/milagro_bls", branch = "paulh" }
+milagro_bls = { git = "https://github.com/sigp/milagro_bls", tag = "v1.4.0" }
 rand = "0.7.3"
 serde = "1.0.116"
 serde_derive = "1.0.116"
@ -17,7 +17,7 @@ eth2_hashing = "0.1.0"
 ethereum-types = "0.9.2"
 arbitrary = { version = "0.4.6", features = ["derive"], optional = true }
 zeroize = { version = "1.1.1", features = ["zeroize_derive"] }
-blst = { git = "https://github.com/sigp/blst.git", rev = "284f7059642851c760a09fb1708bcb59c7ca323c" }
+blst = { git = "https://github.com/sigp/blst.git", rev = "7cf47864627ca479cad06c2a164f30d0cbaf16ce" }
 [features]
 default = ["supranational"]
@ -25,3 +25,4 @@ fake_crypto = []
 milagro = []
 supranational = []
 supranational-portable = ["supranational", "blst/portable"]
 supranational-force-adx = ["supranational", "blst/force-adx"]
--- a/crypto/bls/src/generic_aggregate_public_key.rs
+++ b/crypto/bls/src/generic_aggregate_public_key.rs
@ -1,17 +1,5 @@
 use crate::{Error, PUBLIC_KEY_BYTES_LEN};
 /// Implemented on some struct from a BLS library so it may be used internally in this crate.
-pub trait TAggregatePublicKey: Sized + Clone {
+pub trait TAggregatePublicKey: Sized + Clone {}
    /// Initialize `Self` to the infinity value which can then have other public keys aggregated
    /// upon it.
    fn infinity() -> Self;
    /// Serialize `self` as compressed bytes.
    fn serialize(&self) -> [u8; PUBLIC_KEY_BYTES_LEN];
    /// Deserialize `self` from compressed bytes.
    fn deserialize(bytes: &[u8]) -> Result<Self, Error>;
 }
 /*
 * Note: there is no immediate need for a `GenericAggregatePublicKey` struct.
--- a/crypto/bls/src/generic_aggregate_signature.rs
+++ b/crypto/bls/src/generic_aggregate_signature.rs
@ -183,13 +183,6 @@ where
            return false;
        }
        if self.is_infinity
            && pubkeys.len() == 1
            && pubkeys.first().map_or(false, |pk| pk.is_infinity)
        {
            return true;
        }
        match self.point.as_ref() {
            Some(point) => point.fast_aggregate_verify(msg, pubkeys),
            None => false,
@ -207,13 +200,6 @@ where
            return false;
        }
        if self.is_infinity
            && pubkeys.len() == 1
            && pubkeys.first().map_or(false, |pk| pk.is_infinity)
        {
            return true;
        }
        match self.point.as_ref() {
            Some(point) => point.aggregate_verify(msgs, pubkeys),
            None => false,
--- a/crypto/bls/src/generic_public_key.rs
+++ b/crypto/bls/src/generic_public_key.rs
@ -33,8 +33,6 @@ pub trait TPublicKey: Sized + Clone {
 pub struct GenericPublicKey<Pub> {
    /// The underlying point which performs *actual* cryptographic operations.
    point: Pub,
    /// True if this point is equal to the `INFINITY_PUBLIC_KEY`.
    pub(crate) is_infinity: bool,
 }
 impl<Pub> GenericPublicKey<Pub>
@ -42,8 +40,8 @@ where
    Pub: TPublicKey,
 {
    /// Instantiates `Self` from a `point`.
-    pub(crate) fn from_point(point: Pub, is_infinity: bool) -> Self {
+    pub(crate) fn from_point(point: Pub) -> Self {
-        Self { point, is_infinity }
+        Self { point }
    }
    /// Returns a reference to the underlying BLS point.
@ -63,10 +61,13 @@ where
    /// Deserialize `self` from compressed bytes.
    pub fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
-        Ok(Self {
+        if bytes == &INFINITY_PUBLIC_KEY[..] {
-            point: Pub::deserialize(bytes)?,
+            Err(Error::InvalidInfinityPublicKey)
-            is_infinity: bytes == &INFINITY_PUBLIC_KEY[..],
+        } else {
-        })
+            Ok(Self {
                point: Pub::deserialize(bytes)?,
            })
        }
    }
 }
--- a/crypto/bls/src/generic_public_key_bytes.rs
+++ b/crypto/bls/src/generic_public_key_bytes.rs
@ -1,6 +1,6 @@
 use crate::{
    generic_public_key::{GenericPublicKey, TPublicKey},
-    Error, INFINITY_PUBLIC_KEY, PUBLIC_KEY_BYTES_LEN,
+    Error, PUBLIC_KEY_BYTES_LEN,
 };
 use serde::de::{Deserialize, Deserializer};
 use serde::ser::{Serialize, Serializer};
@ -32,8 +32,7 @@ where
    ///
    /// May fail if the bytes are invalid.
    pub fn decompress(&self) -> Result<GenericPublicKey<Pub>, Error> {
-        let is_infinity = self.bytes[..] == INFINITY_PUBLIC_KEY[..];
+        GenericPublicKey::deserialize(&self.bytes)
        Pub::deserialize(&self.bytes).map(|point| GenericPublicKey::from_point(point, is_infinity))
    }
 }
--- a/crypto/bls/src/generic_secret_key.rs
+++ b/crypto/bls/src/generic_secret_key.rs
@ -58,8 +58,7 @@ where
    /// Returns the public key that corresponds to self.
    pub fn public_key(&self) -> GenericPublicKey<Pub> {
-        let is_infinity = false;
+        GenericPublicKey::from_point(self.point.public_key())
        GenericPublicKey::from_point(self.point.public_key(), is_infinity)
    }
    /// Serialize `self` as compressed bytes.
@ -79,6 +78,8 @@ where
                got: bytes.len(),
                expected: SECRET_KEY_BYTES_LEN,
            })
        } else if bytes.iter().all(|b| *b == 0) {
            Err(Error::InvalidZeroSecretKey)
        } else {
            Ok(Self {
                point: Sec::deserialize(bytes)?,
--- a/crypto/bls/src/generic_signature.rs
+++ b/crypto/bls/src/generic_signature.rs
@ -125,10 +125,6 @@ where
 {
    /// Returns `true` if `self` is a signature across `msg` by `pubkey`.
    pub fn verify(&self, pubkey: &GenericPublicKey<Pub>, msg: Hash256) -> bool {
        if self.is_infinity && pubkey.is_infinity {
            return true;
        }
        if let Some(point) = &self.point {
            point.verify(pubkey.point(), msg)
        } else {
--- a/crypto/bls/src/impls/blst.rs
+++ b/crypto/bls/src/impls/blst.rs
@ -4,7 +4,7 @@ use crate::{
    generic_public_key::{GenericPublicKey, TPublicKey, PUBLIC_KEY_BYTES_LEN},
    generic_secret_key::TSecretKey,
    generic_signature::{TSignature, SIGNATURE_BYTES_LEN},
-    Error, Hash256, ZeroizeHash, INFINITY_PUBLIC_KEY, INFINITY_SIGNATURE,
+    Error, Hash256, ZeroizeHash, INFINITY_SIGNATURE,
 };
 pub use blst::min_pk as blst_core;
 use blst::{blst_scalar, BLST_ERROR};
@ -50,18 +50,12 @@ pub fn verify_signature_sets<'a>(
    let mut pks = Vec::with_capacity(sets.len());
    for set in &sets {
        // If this set is simply an infinity signature and infinity pubkey then skip verification.
        // This has the effect of always declaring that this sig/pubkey combination is valid.
        if set.signature.is_infinity
            && set.signing_keys.len() == 1
            && set.signing_keys.first().map_or(false, |pk| pk.is_infinity)
        {
            continue;
        }
        // Generate random scalars.
        let mut vals = [0u64; 4];
-        vals[0] = rng.gen();
+        while vals[0] == 0 {
            // Do not use zero
            vals[0] = rng.gen();
        }
        let mut rand_i = std::mem::MaybeUninit::<blst_scalar>::uninit();
        // TODO: remove this `unsafe` code-block once we get a safe option from `blst`.
@ -75,8 +69,12 @@ pub fn verify_signature_sets<'a>(
        // Grab a slice of the message, to satisfy the blst API.
        msgs_refs.push(set.message.as_bytes());
        // Convert the aggregate signature into a signature.
        if let Some(point) = set.signature.point() {
            // Subgroup check the signature
            if !point.0.subgroup_check() {
                return false;
            }
            // Convert the aggregate signature into a signature.
            sigs.push(point.0.to_signature())
        } else {
            // Any "empty" signature should cause a signature failure.
@ -103,12 +101,6 @@ pub fn verify_signature_sets<'a>(
        pks.push(blst_core::AggregatePublicKey::aggregate(&signing_keys).to_public_key());
    }
    // Due to an earlier check, the only case this can be empty is if all the sets consisted of
    // infinity pubkeys/sigs. In such a case we wish to return `true`.
    if msgs_refs.is_empty() {
        return true;
    }
    let (sig_refs, pks_refs): (Vec<_>, Vec<_>) = sigs.iter().zip(pks.iter()).unzip();
    let err = blst_core::Signature::verify_multiple_aggregate_signatures(
@ -124,7 +116,15 @@ impl TPublicKey for blst_core::PublicKey {
    }
    fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
-        Self::uncompress(&bytes).map_err(Into::into)
+        // key_validate accepts uncompressed bytes too so enforce byte length here.
        // It also does subgroup checks, noting infinity check is done in `generic_public_key.rs`.
        if bytes.len() != PUBLIC_KEY_BYTES_LEN {
            return Err(Error::InvalidByteLength {
                got: bytes.len(),
                expected: PUBLIC_KEY_BYTES_LEN,
            });
        }
        Self::key_validate(&bytes).map_err(Into::into)
    }
 }
@ -145,25 +145,7 @@ impl PartialEq for BlstAggregatePublicKey {
    }
 }
-impl TAggregatePublicKey for BlstAggregatePublicKey {
+impl TAggregatePublicKey for BlstAggregatePublicKey {}
    fn infinity() -> Self {
        blst_core::PublicKey::from_bytes(&INFINITY_PUBLIC_KEY)
            .map(|pk| blst_core::AggregatePublicKey::from_public_key(&pk))
            .map(Self)
            .expect("should decode infinity public key")
    }
    fn serialize(&self) -> [u8; PUBLIC_KEY_BYTES_LEN] {
        self.0.to_public_key().compress()
    }
    fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
        blst_core::PublicKey::from_bytes(&bytes)
            .map_err(Into::into)
            .map(|pk| blst_core::AggregatePublicKey::from_public_key(&pk))
            .map(Self)
    }
 }
 impl TSignature<blst_core::PublicKey> for blst_core::Signature {
    fn serialize(&self) -> [u8; SIGNATURE_BYTES_LEN] {
@ -175,6 +157,9 @@ impl TSignature<blst_core::PublicKey> for blst_core::Signature {
    }
    fn verify(&self, pubkey: &blst_core::PublicKey, msg: Hash256) -> bool {
        if !self.subgroup_check() {
            return false;
        }
        self.verify(msg.as_bytes(), DST, &[], pubkey) == BLST_ERROR::BLST_SUCCESS
    }
 }
@ -232,6 +217,9 @@ impl TAggregateSignature<blst_core::PublicKey, BlstAggregatePublicKey, blst_core
    ) -> bool {
        let pubkeys = pubkeys.iter().map(|pk| pk.point()).collect::<Vec<_>>();
        let signature = self.0.clone().to_signature();
        if !signature.subgroup_check() {
            return false;
        }
        signature.fast_aggregate_verify(msg.as_bytes(), DST, &pubkeys) == BLST_ERROR::BLST_SUCCESS
    }
@ -243,6 +231,9 @@ impl TAggregateSignature<blst_core::PublicKey, BlstAggregatePublicKey, blst_core
        let pubkeys = pubkeys.iter().map(|pk| pk.point()).collect::<Vec<_>>();
        let msgs = msgs.iter().map(|hash| hash.as_bytes()).collect::<Vec<_>>();
        let signature = self.0.clone().to_signature();
        if !signature.subgroup_check() {
            return false;
        }
        signature.aggregate_verify(&msgs, DST, &pubkeys) == BLST_ERROR::BLST_SUCCESS
    }
 }
--- a/crypto/bls/src/impls/fake_crypto.rs
+++ b/crypto/bls/src/impls/fake_crypto.rs
@ -63,25 +63,7 @@ impl PartialEq for PublicKey {
 #[derive(Clone)]
 pub struct AggregatePublicKey([u8; PUBLIC_KEY_BYTES_LEN]);
-impl TAggregatePublicKey for AggregatePublicKey {
+impl TAggregatePublicKey for AggregatePublicKey {}
    fn infinity() -> Self {
        Self([0; PUBLIC_KEY_BYTES_LEN])
    }
    fn serialize(&self) -> [u8; PUBLIC_KEY_BYTES_LEN] {
        let mut bytes = [0; PUBLIC_KEY_BYTES_LEN];
        bytes[..].copy_from_slice(&self.0);
        bytes
    }
    fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
        let mut key = [0; PUBLIC_KEY_BYTES_LEN];
        key[..].copy_from_slice(&bytes);
        Ok(Self(key))
    }
 }
 impl Eq for AggregatePublicKey {}
--- a/crypto/bls/src/impls/milagro.rs
+++ b/crypto/bls/src/impls/milagro.rs
@ -4,7 +4,7 @@ use crate::{
    generic_public_key::{GenericPublicKey, TPublicKey, PUBLIC_KEY_BYTES_LEN},
    generic_secret_key::{TSecretKey, SECRET_KEY_BYTES_LEN},
    generic_signature::{TSignature, SIGNATURE_BYTES_LEN},
-    Error, Hash256, ZeroizeHash, INFINITY_PUBLIC_KEY,
+    Error, Hash256, ZeroizeHash,
 };
 pub use milagro_bls as milagro;
 use rand::thread_rng;
@ -86,21 +86,7 @@ impl TPublicKey for milagro::PublicKey {
    }
 }
-impl TAggregatePublicKey for milagro::AggregatePublicKey {
+impl TAggregatePublicKey for milagro::AggregatePublicKey {}
    fn infinity() -> Self {
        Self::from_bytes(&INFINITY_PUBLIC_KEY).expect("should decode infinity public key")
    }
    fn serialize(&self) -> [u8; PUBLIC_KEY_BYTES_LEN] {
        let mut bytes = [0; PUBLIC_KEY_BYTES_LEN];
        bytes[..].copy_from_slice(&self.as_bytes());
        bytes
    }
    fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
        Self::from_bytes(&bytes).map_err(Into::into)
    }
 }
 impl TSignature<milagro::PublicKey> for milagro::Signature {
    fn serialize(&self) -> [u8; SIGNATURE_BYTES_LEN] {
--- a/crypto/bls/src/lib.rs
+++ b/crypto/bls/src/lib.rs
@ -56,6 +56,10 @@ pub enum Error {
    InvalidByteLength { got: usize, expected: usize },
    /// The provided secret key bytes were an incorrect length.
    InvalidSecretKeyLength { got: usize, expected: usize },
    /// The public key represents the point at infinity, which is invalid.
    InvalidInfinityPublicKey,
    /// The secret key is all zero bytes, which is invalid.
    InvalidZeroSecretKey,
 }
 impl From<AmclError> for Error {
--- a/crypto/bls/tests/tests.rs
+++ b/crypto/bls/tests/tests.rs
@ -1,4 +1,4 @@
-use bls::{Hash256, INFINITY_PUBLIC_KEY, INFINITY_SIGNATURE};
+use bls::{Hash256, INFINITY_SIGNATURE, SECRET_KEY_BYTES_LEN};
 use ssz::{Decode, Encode};
 use std::borrow::Cow;
 use std::fmt::Debug;
@ -19,6 +19,11 @@ macro_rules! test_suite {
            SecretKey::deserialize(&secret_bytes).unwrap()
        }
        #[test]
        fn invalid_zero_secret_key() {
            assert!(SecretKey::deserialize(&[0; SECRET_KEY_BYTES_LEN]).is_err());
        }
        #[test]
        fn infinity_agg_sig() {
            assert_eq!(
@ -131,11 +136,6 @@ macro_rules! test_suite {
                self
            }
            pub fn infinity_pubkey(mut self) -> Self {
                self.pubkey = PublicKey::deserialize(&INFINITY_PUBLIC_KEY[..]).unwrap();
                self
            }
            pub fn assert_verify(self, is_valid: bool) {
                assert_eq!(self.sig.verify(&self.pubkey, self.msg), is_valid);
@ -153,14 +153,6 @@ macro_rules! test_suite {
            SignatureTester::default().assert_verify(true)
        }
        #[test]
        fn infinity_signature_is_valid_with_infinity_pubkey() {
            SignatureTester::default()
                .infinity_sig()
                .infinity_pubkey()
                .assert_verify(true)
        }
        #[test]
        fn infinity_signature_is_invalid_with_standard_pubkey() {
            SignatureTester::default()
@ -168,13 +160,6 @@ macro_rules! test_suite {
                .assert_verify(false)
        }
        #[test]
        fn standard_signature_is_invalid_with_infinity_pubkey() {
            SignatureTester::default()
                .infinity_pubkey()
                .assert_verify(false)
        }
        /// A helper struct for composing tests via the builder pattern.
        struct AggregateSignatureTester {
            sig: AggregateSignature,
@ -234,17 +219,6 @@ macro_rules! test_suite {
                self
            }
            pub fn single_infinity_pubkey(mut self) -> Self {
                self.pubkeys = vec![PublicKey::deserialize(&INFINITY_PUBLIC_KEY[..]).unwrap()];
                self
            }
            pub fn push_infinity_pubkey(mut self) -> Self {
                self.pubkeys
                    .push(PublicKey::deserialize(&INFINITY_PUBLIC_KEY[..]).unwrap());
                self
            }
            pub fn assert_single_message_verify(self, is_valid: bool) {
                assert!(self.msgs.len() == 1);
                let msg = self.msgs.first().unwrap();
@ -304,15 +278,6 @@ macro_rules! test_suite {
                .assert_single_message_verify(false)
        }
        /// The infinity signature and one infinity pubkey should verify.
        #[test]
        fn fast_aggregate_verify_infinity_signature_with_one_infinity_pubkey() {
            AggregateSignatureTester::new_with_single_msg(1)
                .infinity_sig()
                .single_infinity_pubkey()
                .assert_single_message_verify(true)
        }
        /// Adding a infinity signature (without an infinity pubkey) should verify.
        #[test]
        fn fast_aggregate_verify_with_one_aggregated_infinity_sig() {
@ -332,34 +297,6 @@ macro_rules! test_suite {
                .assert_single_message_verify(true)
        }
        /// Adding a infinity pubkey and an infinity signature should verify.
        #[test]
        fn fast_aggregate_verify_with_one_additional_infinity_pubkey_and_matching_sig() {
            AggregateSignatureTester::new_with_single_msg(1)
                .aggregate_infinity_sig()
                .push_infinity_pubkey()
                .assert_single_message_verify(true)
        }
        /// Adding a single infinity pubkey **without** updating the signature **should verify**.
        #[test]
        fn fast_aggregate_verify_with_one_additional_infinity_pubkey() {
            AggregateSignatureTester::new_with_single_msg(1)
                .push_infinity_pubkey()
                .assert_single_message_verify(true)
        }
        /// Adding multiple infinity pubkeys **without** updating the signature **should verify**.
        #[test]
        fn fast_aggregate_verify_with_four_additional_infinity_pubkeys() {
            AggregateSignatureTester::new_with_single_msg(1)
                .push_infinity_pubkey()
                .push_infinity_pubkey()
                .push_infinity_pubkey()
                .push_infinity_pubkey()
                .assert_single_message_verify(true)
        }
        /// The wrong signature should not verify.
        #[test]
        fn fast_aggregate_verify_wrong_signature() {
@ -463,18 +400,6 @@ macro_rules! test_suite {
                self
            }
            pub fn push_invalid_sig_infinity_set(mut self) -> Self {
                let mut signature = AggregateSignature::infinity();
                signature.add_assign(&secret_from_u64(42).sign(Hash256::zero()));
                self.owned_sets.push(OwnedSignatureSet {
                    signature,
                    signing_keys: vec![PublicKey::deserialize(&INFINITY_PUBLIC_KEY).unwrap()],
                    message: Hash256::zero(),
                    should_be_valid: false,
                });
                self
            }
            pub fn push_invalid_pubkey_infinity_set(mut self) -> Self {
                self.owned_sets.push(OwnedSignatureSet {
                    signature: AggregateSignature::deserialize(&INFINITY_SIGNATURE).unwrap(),
@ -485,16 +410,6 @@ macro_rules! test_suite {
                self
            }
            pub fn push_valid_infinity_set(mut self) -> Self {
                self.owned_sets.push(OwnedSignatureSet {
                    signature: AggregateSignature::deserialize(&INFINITY_SIGNATURE).unwrap(),
                    signing_keys: vec![PublicKey::deserialize(&INFINITY_PUBLIC_KEY).unwrap()],
                    message: Hash256::zero(),
                    should_be_valid: true,
                });
                self
            }
            pub fn run_checks(self) {
                assert!(!self.owned_sets.is_empty(), "empty test is meaningless");
@ -568,22 +483,6 @@ macro_rules! test_suite {
                .run_checks()
        }
        #[test]
        fn signature_set_1_valid_set_with_1_infinity_set() {
            SignatureSetTester::default()
                .push_valid_infinity_set()
                .run_checks()
        }
        #[test]
        fn signature_set_3_sets_with_one_valid_infinity_set() {
            SignatureSetTester::default()
                .push_valid_set(2)
                .push_valid_infinity_set()
                .push_valid_set(2)
                .run_checks()
        }
        #[test]
        fn signature_set_3_sets_with_one_invalid_pubkey_infinity_set() {
            SignatureSetTester::default()
@ -592,15 +491,6 @@ macro_rules! test_suite {
                .push_valid_set(2)
                .run_checks()
        }
        #[test]
        fn signature_set_3_sets_with_one_invalid_sig_infinity_set() {
            SignatureSetTester::default()
                .push_valid_set(2)
                .push_invalid_sig_infinity_set()
                .push_valid_set(2)
                .run_checks()
        }
    };
 }
--- a/lcli/Cargo.toml
+++ b/lcli/Cargo.toml
@ -1,7 +1,7 @@
 [package]
 name = "lcli"
 description = "Lighthouse CLI (modeled after zcli)"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Paul Hauner <paul@paulhauner.com>"]
 edition = "2018"
--- a/lcli/src/eth1_genesis.rs
+++ b/lcli/src/eth1_genesis.rs
@ -2,6 +2,7 @@ use clap::ArgMatches;
 use environment::Environment;
 use eth2_testnet_config::Eth2TestnetConfig;
 use genesis::{Eth1Config, Eth1GenesisService};
 use ssz::Encode;
 use std::path::PathBuf;
 use std::time::Duration;
 use types::EthSpec;
@ -24,8 +25,7 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches<'_>) -> Res
                .expect("should locate home directory")
        });
-    let mut eth2_testnet_config: Eth2TestnetConfig<T> =
+    let mut eth2_testnet_config = Eth2TestnetConfig::load(testnet_dir.clone())?;
        Eth2TestnetConfig::load(testnet_dir.clone())?;
    let spec = eth2_testnet_config
        .yaml_config
@ -35,7 +35,7 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches<'_>) -> Res
        .ok_or_else(|| {
            format!(
                "The loaded config is not compatible with the {} spec",
-                &env.core_context().eth2_config.spec_constants
+                &env.core_context().eth2_config.eth_spec_id
            )
        })?;
@ -51,10 +51,10 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches<'_>) -> Res
    env.runtime().block_on(async {
        let _ = genesis_service
-            .wait_for_genesis_state(ETH1_GENESIS_UPDATE_INTERVAL, spec)
+            .wait_for_genesis_state::<T>(ETH1_GENESIS_UPDATE_INTERVAL, spec)
            .await
            .map(move |genesis_state| {
-                eth2_testnet_config.genesis_state = Some(genesis_state);
+                eth2_testnet_config.genesis_state_bytes = Some(genesis_state.as_ssz_bytes());
                eth2_testnet_config.force_write_to_file(testnet_dir)
            })
            .map_err(|e| format!("Failed to find genesis: {}", e))?;
--- a/lcli/src/interop_genesis.rs
+++ b/lcli/src/interop_genesis.rs
@ -3,6 +3,7 @@ use clap_utils::parse_ssz_optional;
 use environment::Environment;
 use eth2_testnet_config::Eth2TestnetConfig;
 use genesis::interop_genesis_state;
 use ssz::Encode;
 use std::path::PathBuf;
 use std::time::{SystemTime, UNIX_EPOCH};
 use types::{test_utils::generate_deterministic_keypairs, EthSpec};
@ -35,8 +36,7 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches) -> Result<
                .expect("should locate home directory")
        });
-    let mut eth2_testnet_config: Eth2TestnetConfig<T> =
+    let mut eth2_testnet_config = Eth2TestnetConfig::load(testnet_dir.clone())?;
        Eth2TestnetConfig::load(testnet_dir.clone())?;
    let mut spec = eth2_testnet_config
        .yaml_config
@ -46,7 +46,7 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches) -> Result<
        .ok_or_else(|| {
            format!(
                "The loaded config is not compatible with the {} spec",
-                &env.core_context().eth2_config.spec_constants
+                &env.core_context().eth2_config.eth_spec_id
            )
        })?;
@ -55,9 +55,9 @@ pub fn run<T: EthSpec>(mut env: Environment<T>, matches: &ArgMatches) -> Result<
    }
    let keypairs = generate_deterministic_keypairs(validator_count);
-    let genesis_state = interop_genesis_state(&keypairs, genesis_time, &spec)?;
+    let genesis_state = interop_genesis_state::<T>(&keypairs, genesis_time, &spec)?;
-    eth2_testnet_config.genesis_state = Some(genesis_state);
+    eth2_testnet_config.genesis_state_bytes = Some(genesis_state.as_ssz_bytes());
    eth2_testnet_config.force_write_to_file(testnet_dir)?;
    Ok(())
--- a/lcli/src/main.rs
+++ b/lcli/src/main.rs
@ -20,9 +20,12 @@ use parse_hex::run_parse_hex;
 use std::fs::File;
 use std::path::PathBuf;
 use std::process;
 use std::str::FromStr;
 use std::time::{SystemTime, UNIX_EPOCH};
 use transition_blocks::run_transition_blocks;
-use types::{test_utils::TestingBeaconStateBuilder, EthSpec, MainnetEthSpec, MinimalEthSpec};
+use types::{
    test_utils::TestingBeaconStateBuilder, EthSpec, EthSpecId, MainnetEthSpec, MinimalEthSpec,
 };
 fn main() {
    simple_logger::SimpleLogger::new()
@ -482,25 +485,21 @@ fn main() {
        )
        .get_matches();
-    macro_rules! run_with_spec {
+    let result = matches
-        ($env_builder: expr) => {
+        .value_of("spec")
-            match run($env_builder, &matches) {
+        .ok_or_else(|| "Missing --spec flag".to_string())
-                Ok(()) => process::exit(0),
+        .and_then(FromStr::from_str)
-                Err(e) => {
+        .and_then(|eth_spec_id| match eth_spec_id {
-                    println!("Failed to run lcli: {}", e);
+            EthSpecId::Minimal => run(EnvironmentBuilder::minimal(), &matches),
-                    process::exit(1)
+            EthSpecId::Mainnet => run(EnvironmentBuilder::mainnet(), &matches),
-                }
+            EthSpecId::V012Legacy => run(EnvironmentBuilder::v012_legacy(), &matches),
-            }
+        });
        };
    }
-    match matches.value_of("spec") {
+    match result {
-        Some("minimal") => run_with_spec!(EnvironmentBuilder::minimal()),
+        Ok(()) => process::exit(0),
-        Some("mainnet") => run_with_spec!(EnvironmentBuilder::mainnet()),
+        Err(e) => {
-        Some("interop") => run_with_spec!(EnvironmentBuilder::interop()),
+            println!("Failed to run lcli: {}", e);
-        spec => {
+            process::exit(1)
            // This path should be unreachable due to slog having a `default_value`
            unreachable!("Unknown spec configuration: {:?}", spec);
        }
    }
 }
--- a/lcli/src/new_testnet.rs
+++ b/lcli/src/new_testnet.rs
@ -51,11 +51,11 @@ pub fn run<T: EthSpec>(matches: &ArgMatches) -> Result<(), String> {
        spec.genesis_fork_version = v;
    }
-    let testnet: Eth2TestnetConfig<T> = Eth2TestnetConfig {
+    let testnet = Eth2TestnetConfig {
        deposit_contract_address: format!("{:?}", deposit_contract_address),
        deposit_contract_deploy_block,
        boot_enr: Some(vec![]),
-        genesis_state: None,
+        genesis_state_bytes: None,
        yaml_config: Some(YamlConfig::from_spec::<T>(&spec)),
    };
--- a/lighthouse/Cargo.toml
+++ b/lighthouse/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "lighthouse"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2018"
@ -9,6 +9,8 @@ edition = "2018"
 write_ssz_files = ["beacon_node/write_ssz_files"]
 # Compiles the BLS crypto code so that the binary is portable across machines.
 portable = ["bls/supranational-portable"]
 # Compiles BLST so that it always uses ADX instructions.
 modern = ["bls/supranational-force-adx"]
 # Uses the slower Milagro BLS library, which is written in native Rust.
 milagro = ["bls/milagro"]
--- a/lighthouse/environment/src/lib.rs
+++ b/lighthouse/environment/src/lib.rs
@ -24,7 +24,7 @@ use std::path::PathBuf;
 use std::time::{SystemTime, UNIX_EPOCH};
 use task_executor::TaskExecutor;
 use tokio::runtime::{Builder as RuntimeBuilder, Runtime};
-use types::{EthSpec, InteropEthSpec, MainnetEthSpec, MinimalEthSpec};
+use types::{EthSpec, MainnetEthSpec, MinimalEthSpec, V012LegacyEthSpec};
 pub const ETH2_CONFIG_FILENAME: &str = "eth2-spec.toml";
 const LOG_CHANNEL_SIZE: usize = 2048;
@ -37,7 +37,7 @@ pub struct EnvironmentBuilder<E: EthSpec> {
    log: Option<Logger>,
    eth_spec_instance: E,
    eth2_config: Eth2Config,
-    testnet: Option<Eth2TestnetConfig<E>>,
+    testnet: Option<Eth2TestnetConfig>,
 }
 impl EnvironmentBuilder<MinimalEthSpec> {
@ -66,14 +66,14 @@ impl EnvironmentBuilder<MainnetEthSpec> {
    }
 }
-impl EnvironmentBuilder<InteropEthSpec> {
+impl EnvironmentBuilder<V012LegacyEthSpec> {
-    /// Creates a new builder using the `interop` eth2 specification.
+    /// Creates a new builder using the v0.12.x eth2 specification.
-    pub fn interop() -> Self {
+    pub fn v012_legacy() -> Self {
        Self {
            runtime: None,
            log: None,
-            eth_spec_instance: InteropEthSpec,
+            eth_spec_instance: V012LegacyEthSpec,
-            eth2_config: Eth2Config::interop(),
+            eth2_config: Eth2Config::v012_legacy(),
            testnet: None,
        }
    }
@ -238,7 +238,7 @@ impl<E: EthSpec> EnvironmentBuilder<E> {
    /// Adds a testnet configuration to the environment.
    pub fn eth2_testnet_config(
        mut self,
-        eth2_testnet_config: Eth2TestnetConfig<E>,
+        eth2_testnet_config: Eth2TestnetConfig,
    ) -> Result<Self, String> {
        // Create a new chain spec from the default configuration.
        self.eth2_config.spec = eth2_testnet_config
@ -249,7 +249,7 @@ impl<E: EthSpec> EnvironmentBuilder<E> {
            .ok_or_else(|| {
                format!(
                    "The loaded config is not compatible with the {} spec",
-                    &self.eth2_config.spec_constants
+                    &self.eth2_config.eth_spec_id
                )
            })?;
@ -261,7 +261,7 @@ impl<E: EthSpec> EnvironmentBuilder<E> {
    /// Optionally adds a testnet configuration to the environment.
    pub fn optional_eth2_testnet_config(
        self,
-        optional_config: Option<Eth2TestnetConfig<E>>,
+        optional_config: Option<Eth2TestnetConfig>,
    ) -> Result<Self, String> {
        if let Some(config) = optional_config {
            self.eth2_testnet_config(config)
@ -339,7 +339,7 @@ pub struct Environment<E: EthSpec> {
    log: Logger,
    eth_spec_instance: E,
    pub eth2_config: Eth2Config,
-    pub testnet: Option<Eth2TestnetConfig<E>>,
+    pub testnet: Option<Eth2TestnetConfig>,
 }
 impl<E: EthSpec> Environment<E> {
--- a/lighthouse/environment/tests/environment_builder.rs
+++ b/lighthouse/environment/tests/environment_builder.rs
@ -3,17 +3,17 @@
 use environment::EnvironmentBuilder;
 use eth2_testnet_config::Eth2TestnetConfig;
 use std::path::PathBuf;
-use types::{MainnetEthSpec, YamlConfig};
+use types::{V012LegacyEthSpec, YamlConfig};
-fn builder() -> EnvironmentBuilder<MainnetEthSpec> {
+fn builder() -> EnvironmentBuilder<V012LegacyEthSpec> {
-    EnvironmentBuilder::mainnet()
+    EnvironmentBuilder::v012_legacy()
        .single_thread_tokio_runtime()
        .expect("should set runtime")
        .null_logger()
        .expect("should set logger")
 }
-fn eth2_testnet_config() -> Option<Eth2TestnetConfig<MainnetEthSpec>> {
+fn eth2_testnet_config() -> Option<Eth2TestnetConfig> {
    Eth2TestnetConfig::hard_coded_default().expect("should decode hard_coded params")
 }
--- a/lighthouse/src/main.rs
+++ b/lighthouse/src/main.rs
@ -7,7 +7,7 @@ use lighthouse_version::VERSION;
 use slog::{crit, info, warn};
 use std::path::PathBuf;
 use std::process::exit;
-use types::EthSpec;
+use types::{EthSpec, EthSpecId};
 use validator_client::ProductionValidatorClient;
 pub const ETH2_CONFIG_FILENAME: &str = "eth2-spec.toml";
@ -15,6 +15,8 @@ pub const ETH2_CONFIG_FILENAME: &str = "eth2-spec.toml";
 fn bls_library_name() -> &'static str {
    if cfg!(feature = "portable") {
        "blst-portable"
    } else if cfg!(feature = "modern") {
        "blst-modern"
    } else if cfg!(feature = "milagro") {
        "milagro"
    } else {
@ -43,12 +45,11 @@ fn main() {
            Arg::with_name("spec")
                .short("s")
                .long("spec")
-                .value_name("TITLE")
+                .value_name("DEPRECATED")
-                .help("Specifies the default eth2 spec type.")
+                .help("This flag is deprecated, it will be disallowed in a future release. This \
                    value is now derived from the --testnet or --testnet-dir flags.")
                .takes_value(true)
                .possible_values(&["mainnet", "minimal", "interop"])
                .global(true)
                .default_value("mainnet"),
        )
        .arg(
            Arg::with_name("env_log")
@ -126,37 +127,35 @@ fn main() {
        .subcommand(account_manager::cli_app())
        .get_matches();
    // boot node subcommand circumvents the environment
    if let Some(bootnode_matches) = matches.subcommand_matches("boot_node") {
        // The bootnode uses the main debug-level flag
        let debug_info = matches
            .value_of("debug-level")
            .expect("Debug-level must be present")
            .into();
        boot_node::run(bootnode_matches, debug_info);
        return;
    }
    // Debugging output for libp2p and external crates.
    if matches.is_present("env_log") {
        Builder::from_env(Env::default()).init();
    }
-    macro_rules! run_with_spec {
+    let result = load_testnet_config(&matches).and_then(|testnet_config| {
-        ($env_builder: expr) => {
+        let eth_spec_id = testnet_config.eth_spec_id()?;
            run($env_builder, &matches)
        };
    }
-    let result = match matches.value_of("spec") {
+        // boot node subcommand circumvents the environment
-        Some("minimal") => run_with_spec!(EnvironmentBuilder::minimal()),
+        if let Some(bootnode_matches) = matches.subcommand_matches("boot_node") {
-        Some("mainnet") => run_with_spec!(EnvironmentBuilder::mainnet()),
+            // The bootnode uses the main debug-level flag
-        Some("interop") => run_with_spec!(EnvironmentBuilder::interop()),
+            let debug_info = matches
-        spec => {
+                .value_of("debug-level")
-            // This path should be unreachable due to slog having a `default_value`
+                .expect("Debug-level must be present")
-            unreachable!("Unknown spec configuration: {:?}", spec);
+                .into();
            boot_node::run(bootnode_matches, eth_spec_id, debug_info);
            return Ok(());
        }
-    };
+
        match eth_spec_id {
            EthSpecId::Minimal => run(EnvironmentBuilder::minimal(), &matches, testnet_config),
            EthSpecId::Mainnet => run(EnvironmentBuilder::mainnet(), &matches, testnet_config),
            EthSpecId::V012Legacy => {
                run(EnvironmentBuilder::v012_legacy(), &matches, testnet_config)
            }
        }
    });
    // `std::process::exit` does not run destructors so we drop manually.
    drop(matches);
@ -172,9 +171,23 @@ fn main() {
    }
 }
 fn load_testnet_config(matches: &ArgMatches) -> Result<Eth2TestnetConfig, String> {
    if matches.is_present("testnet-dir") {
        clap_utils::parse_testnet_dir(matches, "testnet-dir")?
            .ok_or_else(|| "Unable to load testnet dir".to_string())
    } else if matches.is_present("testnet") {
        clap_utils::parse_hardcoded_network(matches, "testnet")?
            .ok_or_else(|| "Unable to load hard coded network config".to_string())
    } else {
        Eth2TestnetConfig::hard_coded_default()?
            .ok_or_else(|| "Unable to load default network config".to_string())
    }
 }
 fn run<E: EthSpec>(
    environment_builder: EnvironmentBuilder<E>,
    matches: &ArgMatches,
    testnet_config: Eth2TestnetConfig,
 ) -> Result<(), String> {
    if std::mem::size_of::<usize>() != 8 {
        return Err(format!(
@ -183,25 +196,19 @@ fn run<E: EthSpec>(
        ));
    }
    #[cfg(all(feature = "modern", target_arch = "x86_64"))]
    if !std::is_x86_feature_detected!("adx") {
        return Err(format!(
            "CPU incompatible with optimized binary, please try Lighthouse portable build"
        ));
    }
    let debug_level = matches
        .value_of("debug-level")
        .ok_or_else(|| "Expected --debug-level flag".to_string())?;
    let log_format = matches.value_of("log-format");
    // Parse testnet config from the `testnet` and `testnet-dir` flag in that order
    // else, use the default
    let mut optional_testnet_config = None;
    if matches.is_present("testnet") {
        optional_testnet_config = clap_utils::parse_hardcoded_network(matches, "testnet")?;
    };
    if matches.is_present("testnet-dir") {
        optional_testnet_config = clap_utils::parse_testnet_dir(matches, "testnet-dir")?;
    };
    if optional_testnet_config.is_none() {
        optional_testnet_config = Eth2TestnetConfig::hard_coded_default()?;
    }
    let builder = if let Some(log_path) = matches.value_of("logfile") {
        let path = log_path
            .parse::<PathBuf>()
@ -213,11 +220,18 @@ fn run<E: EthSpec>(
    let mut environment = builder
        .multi_threaded_tokio_runtime()?
-        .optional_eth2_testnet_config(optional_testnet_config)?
+        .optional_eth2_testnet_config(Some(testnet_config))?
        .build()?;
    let log = environment.core_context().log().clone();
    if matches.is_present("spec") {
        warn!(
            log,
            "The --spec flag is deprecated and will be removed in a future release"
        );
    }
    // Note: the current code technically allows for starting a beacon node _and_ a validator
    // client at the same time.
    //
@ -264,7 +278,6 @@ fn run<E: EthSpec>(
            let executor = context.executor.clone();
            let config = beacon_node::get_config::<E>(
                matches,
                &context.eth2_config.spec_constants,
                &context.eth2_config().spec,
                context.log().clone(),
            )?;
--- a/testing/ef_tests/Makefile
+++ b/testing/ef_tests/Makefile
@ -1,4 +1,4 @@
-TESTS_TAG := v0.12.3
+TESTS_TAG := v1.0.0-rc.0
 TESTS = general minimal mainnet
 TARBALLS = $(patsubst %,%-$(TESTS_TAG).tar.gz,$(TESTS))
--- a/testing/ef_tests/src/cases/bls_aggregate_verify.rs
+++ b/testing/ef_tests/src/cases/bls_aggregate_verify.rs
@ -1,13 +1,13 @@
 use super::*;
 use crate::case_result::compare_result;
 use crate::cases::common::BlsCase;
-use bls::{AggregateSignature, PublicKey};
+use bls::{AggregateSignature, PublicKeyBytes};
 use serde_derive::Deserialize;
 use types::Hash256;
 #[derive(Debug, Clone, Deserialize)]
 pub struct BlsAggregateVerifyInput {
-    pub pubkeys: Vec<PublicKey>,
+    pub pubkeys: Vec<PublicKeyBytes>,
    pub messages: Vec<String>,
    pub signature: String,
 }
@ -33,14 +33,29 @@ impl Case for BlsAggregateVerify {
            })
            .collect::<Result<Vec<_>, _>>()?;
-        let pubkey_refs = self.input.pubkeys.iter().collect::<Vec<_>>();
+        let pubkeys_result = self
            .input
            .pubkeys
            .iter()
            .map(|pkb| pkb.decompress())
            .collect::<Result<Vec<_>, _>>();
        let pubkeys = match pubkeys_result {
            Ok(pubkeys) => pubkeys,
            Err(bls::Error::InvalidInfinityPublicKey) if !self.output => {
                return Ok(());
            }
            Err(e) => return Err(Error::FailedToParseTest(format!("{:?}", e))),
        };
        let pubkey_refs = pubkeys.iter().collect::<Vec<_>>();
        let signature_bytes = hex::decode(&self.input.signature[2..])
            .map_err(|e| Error::FailedToParseTest(format!("{:?}", e)))?;
        let signature_valid = AggregateSignature::deserialize(&signature_bytes)
            .ok()
-            .map(|signature| signature.aggregate_verify(&messages, &pubkey_refs))
+            .map(|signature| signature.aggregate_verify(&messages, &pubkey_refs[..]))
            .unwrap_or(false);
        compare_result::<bool, ()>(&Ok(signature_valid), &Some(self.output))
--- a/testing/ef_tests/src/cases/bls_fast_aggregate_verify.rs
+++ b/testing/ef_tests/src/cases/bls_fast_aggregate_verify.rs
@ -1,7 +1,7 @@
 use super::*;
 use crate::case_result::compare_result;
 use crate::cases::common::BlsCase;
-use bls::{AggregateSignature, PublicKey, PublicKeyBytes};
+use bls::{AggregateSignature, PublicKeyBytes};
 use serde_derive::Deserialize;
 use std::convert::TryInto;
 use types::Hash256;
@ -9,6 +9,7 @@ use types::Hash256;
 #[derive(Debug, Clone, Deserialize)]
 pub struct BlsFastAggregateVerifyInput {
    pub pubkeys: Vec<PublicKeyBytes>,
    #[serde(alias = "messages")]
    pub message: String,
    pub signature: String,
 }
@ -28,13 +29,20 @@ impl Case for BlsFastAggregateVerify {
                .map_err(|e| Error::FailedToParseTest(format!("{:?}", e)))?,
        );
-        let pubkeys = self
+        let pubkeys_result = self
            .input
            .pubkeys
            .iter()
            .map(|pkb| pkb.try_into())
-            .collect::<Result<Vec<PublicKey>, bls::Error>>()
+            .collect::<Result<Vec<_>, _>>();
-            .map_err(|e| Error::FailedToParseTest(format!("{:?}", e)))?;
+
        let pubkeys = match pubkeys_result {
            Ok(pubkeys) => pubkeys,
            Err(bls::Error::InvalidInfinityPublicKey) if !self.output => {
                return Ok(());
            }
            Err(e) => return Err(Error::FailedToParseTest(format!("{:?}", e))),
        };
        let pubkey_refs = pubkeys.iter().collect::<Vec<_>>();
--- a/testing/ef_tests/src/cases/bls_sign_msg.rs
+++ b/testing/ef_tests/src/cases/bls_sign_msg.rs
@ -14,7 +14,7 @@ pub struct BlsSignInput {
 #[derive(Debug, Clone, Deserialize)]
 pub struct BlsSign {
    pub input: BlsSignInput,
-    pub output: String,
+    pub output: Option<String>,
 }
 impl BlsCase for BlsSign {}
@ -27,16 +27,25 @@ impl Case for BlsSign {
        assert_eq!(sk.len(), 32);
-        let sk = SecretKey::deserialize(&sk).unwrap();
+        let sk = match SecretKey::deserialize(&sk) {
            Ok(sk) => sk,
            Err(_) if self.output.is_none() => {
                return Ok(());
            }
            Err(e) => return Err(Error::FailedToParseTest(format!("{:?}", e))),
        };
        let msg = hex::decode(&self.input.message[2..])
            .map_err(|e| Error::FailedToParseTest(format!("{:?}", e)))?;
        let signature = sk.sign(Hash256::from_slice(&msg));
-        // Convert the output to one set of bytes
+        let decoded = self
-        let decoded = hex::decode(&self.output[2..])
+            .output
            .as_ref()
            .map(|output| hex::decode(&output[2..]))
            .transpose()
            .map_err(|e| Error::FailedToParseTest(format!("{:?}", e)))?;
-        compare_result::<Vec<u8>, Vec<u8>>(&Ok(signature.serialize().to_vec()), &Some(decoded))
+        compare_result::<Vec<u8>, Vec<u8>>(&Ok(signature.serialize().to_vec()), &decoded)
    }
 }
--- a/testing/ef_tests/src/cases/bls_verify_msg.rs
+++ b/testing/ef_tests/src/cases/bls_verify_msg.rs
@ -1,14 +1,14 @@
 use super::*;
 use crate::case_result::compare_result;
 use crate::cases::common::BlsCase;
-use bls::{PublicKey, Signature, SignatureBytes};
+use bls::{PublicKeyBytes, Signature, SignatureBytes};
 use serde_derive::Deserialize;
 use std::convert::TryInto;
 use types::Hash256;
 #[derive(Debug, Clone, Deserialize)]
 pub struct BlsVerifyInput {
-    pub pubkey: PublicKey,
+    pub pubkey: PublicKeyBytes,
    pub message: String,
    pub signature: SignatureBytes,
 }
@ -28,8 +28,9 @@ impl Case for BlsVerify {
        let signature_ok = (&self.input.signature)
            .try_into()
-            .map(|signature: Signature| {
+            .and_then(|signature: Signature| {
-                signature.verify(&self.input.pubkey, Hash256::from_slice(&message))
+                let pk = self.input.pubkey.decompress()?;
                Ok(signature.verify(&pk, Hash256::from_slice(&message)))
            })
            .unwrap_or(false);
--- a/testing/ef_tests/src/type_name.rs
+++ b/testing/ef_tests/src/type_name.rs
@ -36,6 +36,7 @@ macro_rules! type_name_generic {
 type_name!(MinimalEthSpec, "minimal");
 type_name!(MainnetEthSpec, "mainnet");
 type_name_generic!(AggregateAndProof);
 type_name_generic!(Attestation);
 type_name!(AttestationData);
 type_name_generic!(AttesterSlashing);
@ -46,12 +47,18 @@ type_name_generic!(BeaconState);
 type_name!(Checkpoint);
 type_name!(Deposit);
 type_name!(DepositData);
 type_name!(DepositMessage);
 type_name!(Eth1Data);
 type_name!(Fork);
 type_name!(ForkData);
 type_name_generic!(HistoricalBatch);
 type_name_generic!(IndexedAttestation);
 type_name_generic!(PendingAttestation);
 type_name!(ProposerSlashing);
 type_name_generic!(SignedAggregateAndProof);
 type_name_generic!(SignedBeaconBlock);
 type_name!(SignedBeaconBlockHeader);
 type_name!(SignedVoluntaryExit);
 type_name!(SigningData);
 type_name!(Validator);
 type_name!(VoluntaryExit);
--- a/testing/ef_tests/tests/tests.rs
+++ b/testing/ef_tests/tests/tests.rs
@ -172,6 +172,7 @@ mod ssz_static {
    use ef_tests::{Handler, SszStaticHandler, SszStaticTHCHandler};
    use types::*;
    ssz_static_test!(aggregate_and_proof, AggregateAndProof<_>);
    ssz_static_test!(attestation, Attestation<_>);
    ssz_static_test!(attestation_data, AttestationData);
    ssz_static_test!(attester_slashing, AttesterSlashing<_>);
@ -188,12 +189,24 @@ mod ssz_static {
    ssz_static_test!(checkpoint, Checkpoint);
    ssz_static_test!(deposit, Deposit);
    ssz_static_test!(deposit_data, DepositData);
    ssz_static_test!(deposit_message, DepositMessage);
    // FIXME(sproul): move Eth1Block to consensus/types
    //
    // Tracked at: https://github.com/sigp/lighthouse/issues/1835
    //
    // ssz_static_test!(eth1_block, Eth1Block);
    ssz_static_test!(eth1_data, Eth1Data);
    ssz_static_test!(fork, Fork);
    ssz_static_test!(fork_data, ForkData);
    ssz_static_test!(historical_batch, HistoricalBatch<_>);
    ssz_static_test!(indexed_attestation, IndexedAttestation<_>);
    ssz_static_test!(pending_attestation, PendingAttestation<_>);
    ssz_static_test!(proposer_slashing, ProposerSlashing);
    ssz_static_test!(signed_aggregate_and_proof, SignedAggregateAndProof<_>);
    ssz_static_test!(signed_beacon_block, SignedBeaconBlock<_>);
    ssz_static_test!(signed_beacon_block_header, SignedBeaconBlockHeader);
    ssz_static_test!(signed_voluntary_exit, SignedVoluntaryExit);
    ssz_static_test!(signing_data, SigningData);
    ssz_static_test!(validator, Validator);
    ssz_static_test!(voluntary_exit, VoluntaryExit);
 }
@ -217,7 +230,7 @@ fn epoch_processing_justification_and_finalization() {
 #[test]
 fn epoch_processing_rewards_and_penalties() {
    EpochProcessingHandler::<MinimalEthSpec, RewardsAndPenalties>::run();
-    // Note: there are no reward and penalty tests for mainnet yet
+    EpochProcessingHandler::<MainnetEthSpec, RewardsAndPenalties>::run();
 }
 #[test]
--- a/validator_client/Cargo.toml
+++ b/validator_client/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "validator_client"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Paul Hauner <paul@paulhauner.com>", "Age Manning <Age@AgeManning.com>", "Luke Anderson <luke@lukeanderson.com.au>"]
 edition = "2018"