This is a mandatory release of Lotus that introduces [Filecoin Network v14](https://github.com/filecoin-project/community/discussions/74#discussioncomment-1398542), codenamed the Chocolate upgrade. The Filecoin mainnet will upgrade at epoch 1231620, on 2021-10-26T13:30:00Z.
- [FIP-0026](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0026.md): Extend sector faulty period from 2 weeks to 6 weeks
Note that this release is built on top of lotus v1.11.3. Enterprising users like storage providers, data brokers and others are recommended to use lotus v1.13.0 for latest new features, improvements and bug fixes.
## New Features and Changes
- Implement and support [FIP-0024](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0024.md) BatchBalancer & BatchDiscount Post-HyperDrive Adjustment:
- Extend FaultMaxAge to 6 weeks for actors v6 on test networks only ([filecoin-project/lotus#7421](https://github.com/filecoin-project/lotus/pull/7421))
- 🌟🌟Introduce `MaxStagingDealsBytes - reject new deals if our staging deals area is full ([filecoin-project/lotus#7276](https://github.com/filecoin-project/lotus/pull/7276))
- Set `MaxStagingDealsBytes` under the [Dealmaking] section of the markets' subsystem's `config.toml` to reject new incoming deals when the `deal-staging` directory of market subsystem's repo gets too large.
- 🌟🌟miner: Command to list/remove expired sectors locally ([filecoin-project/lotus#7140](https://github.com/filecoin-project/lotus/pull/7140))
- run `./lotus-miner sectors expired -h` for more details.
- 🚀update to ffi to update-bellperson-proofs-v9-0-2 ([filecoin-project/lotus#7369](https://github.com/filecoin-project/lotus/pull/7369))
- MinerX fellows(early testers of lotus releases) have reported faster WindowPoSt computation!
- 🌟dealpublisher: Fully validate deals before publishing ([filecoin-project/lotus#7234](https://github.com/filecoin-project/lotus/pull/7234))
- This excludes the expired deals before sending out a PSD message which reduces the chances of PSD message failure due to invalid deals.
- Catch deal slashed because sector was terminated ([filecoin-project/lotus#7201](https://github.com/filecoin-project/lotus/pull/7201))
- Insert miner and network power data as gibibytes to avoid int64 overflows ([filecoin-project/lotus#7194](https://github.com/filecoin-project/lotus/pull/7194))
- sealing: Check piece CIDs after AddPiece ([filecoin-project/lotus#7185](https://github.com/filecoin-project/lotus/pull/7185))
- markets: OnDealExpiredOrSlashed - get deal by proposal instead of deal ID ([filecoin-project/lotus#5431](https://github.com/filecoin-project/lotus/pull/5431))
- Incoming: improve a log message ([filecoin-project/lotus#7181](https://github.com/filecoin-project/lotus/pull/7181))
- journal: make current log file have a fixed named (#7112) ([filecoin-project/lotus#7112](https://github.com/filecoin-project/lotus/pull/7112))
- call string.Repeat always with positive int ([filecoin-project/lotus#7104](https://github. com/filecoin-project/lotus/pull/7104))
- itests: support larger sector sizes; add large deal test. ([filecoin-project/lotus#7148](https://github.com/filecoin-project/lotus/pull/7148))
- **[lotus miner markets' Dagstore](https://docs.filecoin.io/mine/lotus/dagstore/#conceptual-overview)** is a
component of the `markets` subsystem in lotus-miner. It is a sharded store to hold large IPLD graphs efficiently,
packaged as location-transparent attachable CAR files and it replaces the former Badger staging blockstore. It
is designed to provide high efficiency and throughput, and minimize resource utilization during deal-making operations.
The dagstore also leverages the indexing features of [CARv2](https://github.com/ipld/ipld/blob/master/specs/transport/car/carv2/index.md) to enable plan CAR files to act as read and write
blockstores, which are served as the direct medium for data exchanges in markets for both storage and retrieval
deal making without requiring intermediate buffers.
- In the future, lotus will leverage and interact with Dagstore a lot for new features and improvements for deal
making, therefore, it's highly recommended to lotus users to go through [Lotus Miner: About the markets dagstore](https://docs.filecoin.io/mine/lotus/dagstore/#conceptual-overview) thoroughly to learn more about Dagstore's
conceptual overview, terminology, directory structure, configuration and so on.
- When you first start your lotus-miner or market subsystem with this release, a one-time/first-time **dagstore migration** will be triggered which replaces the former Badger staging blockstore with dagstore. We highly
recommend storage providers to read this [section](https://docs.filecoin.io/mine/lotus/dagstore/#first-time-migration) to learn more about
what the process does, what to expect and how monitor it.
- It is highly recommended to **wait all ongoing data transfer to finish or cancel inbound storage deals that
are still transferring**, using the `lotus-miner data-transfers cancel` command before upgrade your market nodes. Reason being that the new dagstore changes attributes in the internal deal state objects, and the paths to the staging CARs where the deal data was being placed will be lost.
- ‼️Having your dags initialized will become important in the near feature for you to provide a better storage
and retrieval service. We'd suggest you to start [forced bulk initialization] soon if possible as this process
places relatively high IP workload on your storage system and is better to be carried out gradually and over a
longer timeframe. Read how to do properly perform a force bulk initialization [here](https://docs.filecoin.io/mine/lotus/dagstore/#forcing-bulk-initialization).
- ⏮ Rollback Alert(from v1.11.2-rcX to any version lower): If a storages deal is initiated with M1/v1.11.2(-rcX)
release, it needs to get to the `StorageDealAwaitingPrecommit` state before you can do a version rollback or the markets process may panic.
- 💙 **Special thanks to [MinerX fellows for testing and providing valuable feedbacks](https://github.com/filecoin-project/lotus/discussions/6852) for Dagstore in the past month!**
- 🌟🌟 rpcenc: Support reader redirect ([filecoin-project/lotus#6952](https://github.com/filecoin-project/lotus/pull/6952))
- This allows market processes to send piece bytes directly to workers involved on `AddPiece`.
- Extending sectors: more practical and flexible tools ([filecoin-project/lotus#6097](https://github.com/filecoin-project/lotus/pull/6097))
-`lotus-miner sectors check-expire` to inspect expiring sectors.
-`lotus-miner sectors renew` for renewing expiring sectors, see the command help menu for customizable option
like `extension`, `new-expiration` and so on.
- ‼️ MpoolReplaceCmd ( lotus mpool replace`) now takes FIL for fee-limit ([filecoin-project/lotus#6927](https://github.com/filecoin-project/lotus/pull/6927))
- Drop townhall/chainwatch ([filecoin-project/lotus#6912](https://github.com/filecoin-project/lotus/pull/6912))
- ChainWatch is no longer supported by lotus.
- Configurable CC Sector Expiration ([filecoin-project/lotus#6803](https://github.com/filecoin-project/lotus/pull/6803))
- Set `CommittedCapacitySectorLifetime` in lotus-miner/config.toml to specify the default expiration for a new CC
sector, value must be between 180-540 days inclusive.
## New Features
- api/command for encoding actor params ([filecoin-project/lotus#7150](https://github.com/filecoin-project/lotus/pull/7150))
- shed: Support raw encoding in cid id ([filecoin-project/lotus#7149](https://github.com/filecoin-project/lotus/pull/7149))
- feat(miner deals): create subdir to miner repo for staged deals ([filecoin-project/lotus#6853](https://github.com/filecoin-project/lotus/pull/6853))
- Support --actor in miner actor control list ([filecoin-project/lotus#7027](https://github.com/filecoin-project/lotus/pull/7027))
- Shed: Include network name in genesis-verify ([filecoin-project/lotus#7019](https://github.com/filecoin-project/lotus/pull/7019))
- improve get api error messages ([filecoin-project/lotus#7088](https://github.com/filecoin-project/lotus/pull/7088))
- Strict major minor version checking on v0 and v1 apis ([filecoin-project/lotus#7038](https://github.com/filecoin-project/lotus/pull/7038))
- make lotus-miner net commands hit markets subsystem. ([filecoin-project/lotus#7042](https://github.com/filecoin-project/lotus/pull/7042))
- Test with latest actors version ([filecoin-project/lotus#6998](https://github.com/filecoin-project/lotus/pull/6998))
- Reduce splitstore memory usage during chain walks ([filecoin-project/lotus#6949](https://github.com/filecoin-project/lotus/pull/6949))
- Remove forgotten non-functioning config from the pre-mainnet days ([filecoin-project/lotus#6970](https://github.com/filecoin-project/lotus/pull/6970))
- add explicit error msg if repo dir does not exist ([filecoin-project/lotus#6909](https://github.com/filecoin-project/lotus/pull/6909))
- reasonable max value for initial sector expiration ([filecoin-project/lotus#6099](https://github.com/filecoin-project/lotus/pull/6099))
- support MARKETS_API_INFO env var, and markets-repo, markets-api-url CLI flags. ([filecoin-project/lotus#6936](https://github.com/filecoin-project/lotus/pull/6936))
- Improve formatting of workers CLI ([filecoin-project/lotus#6942](https://github.com/filecoin-project/lotus/pull/6942))
- make: set default GOCC earlier ([filecoin-project/lotus#6932](https://github.com/filecoin-project/lotus/pull/6932))
- Log more call context during errors ([filecoin-project/lotus#6918](https://github.com/filecoin-project/lotus/pull/6918))
- polish(errors): better state tree errors ([filecoin-project/lotus#6923](https://github.com/filecoin-project/lotus/pull/6923))
- adding an RuntimeSubsystems API to storage miner; fix `lotus-miner info` ([filecoin-project/lotus#6906](https://github.com/filecoin-project/lotus/pull/6906))
- Reduce entropy in the chain package ([filecoin-project/lotus#6889](https://github.com/filecoin-project/lotus/pull/6889))
- make: Allow setting Go compiler with GOCC ([filecoin-project/lotus#6911](https://github.com/filecoin-project/lotus/pull/6911))
## Bug Fixes
- sealing: Fix RecoverDealIDs loop with changed PieceCID ([filecoin-project/lotus#7117](https://github.com/filecoin-project/lotus/pull/7117))
- Fix error handling in SectorAddPieceToAny api impl ([filecoin-project/lotus#7135](https://github.com/filecoin-project/lotus/pull/7135))
- add rice box to required binaries ([filecoin-project/lotus#7125](https://github.com/filecoin-project/lotus/pull/7125))
- fix bug in MpoolPending message exclusion ([filecoin-project/lotus#6945](https://github.com/filecoin-project/lotus/pull/6945))
- PreCommitPolicy: Don't try to align expirations on proving period boundaries ([filecoin-project/lotus#7018](https://github.com/filecoin-project/lotus/pull/7018))
- make: fix version check when using gotip ([filecoin-project/lotus#6916](https://github.com/filecoin-project/lotus/pull/6916))
This is a **highly recommended** but optional Lotus v1.11.1 release that introduces many deal making and datastore improvements and new features along with other bug fixes.
- ⭐️⭐️⭐️[**lotus-miner market subsystem**](https://docs.filecoin.io/mine/lotus/split-markets-miners/#frontmatter-title) is introduced in this release! It is **highly recommended** for storage providers to run markets processes on a separate machine! Doing so, only this machine needs to exposes public ports for deal making. This also means that the other miner operations can now be completely isolated by from the deal making processes and storage providers can stop and restarts the markets process without affecting an ongoing Winning/Window PoSt!
- More details on the concepts, architecture and how to split the market process can be found [here](https://docs.filecoin.io/mine/lotus/split-markets-miners/#concepts).
- Base on your system setup(running on separate machines, same machine and so on), please see the suggested practice by community members [here](https://github.com/filecoin-project/lotus/discussions/7047#discussion-3515335).
- Note: if you are running lotus-worker on a different machine, you will need to set `MARKETS_API_INFO` for certain CLI to work properly. This will be improved by #7072.
- Huge thanks to MinerX fellows for [helping testing the implementation, reporting the issues so they were fixed by now and providing feedbacks](https://github.com/filecoin-project/lotus/discussions/6861) to user docs in the past three weeks!
- Config for collateral from miner available balance ([filecoin-project/lotus#6629](https://github.com/filecoin-project/lotus/pull/6629))
- Better control your sector collateral payment by setting `CollateralFromMinerBalance`, `AvailableBalanceBuffer` and `DisableCollateralFallback`.
-`CollateralFromMinerBalance`: whether to use available miner balance for sector collateral instead of sending it with each message, default is `false`.
-`AvailableBalanceBuffer`: minimum available balance to keep in the miner actor before sending it with messages, default is 0FIL.
-`DisableCollateralFallback`: whether to send collateral with messages even if there is no available balance in the miner actor, default is `false`.
- Config for deal publishing control addresses ([filecoin-project/lotus#6697](https://github.com/filecoin-project/lotus/pull/6697))
- Set `DealPublishControl` to set the wallet used for sending `PublishStorageDeals` messages, instructions [here](https://docs.filecoin.io/mine/lotus/miner-addresses/#control-addresses).
- You can now preview the the default and updated node config by running `lotus/lotus-miner config default/updated`
## New Features
- ⭐️⭐️⭐️ Support standalone miner-market process ([filecoin-project/lotus#6356](https://github.com/filecoin-project/lotus/pull/6356))
- **⭐️⭐️ Experimental** [Splitstore]((https://github.com/filecoin-project/lotus/blob/master/blockstore/splitstore/README.md)) (more details coming in v1.11.2! Stay tuned! Join the discussion [here](https://github.com/filecoin-project/lotus/discussions/5788) if you have questions!) :
- Splitstore: add retention policy option for keeping messages in the hotstore ([filecoin-project/lotus#6775](https://github.com/filecoin-project/lotus/pull/6775))
- Introduce the LOTUS_CHAIN_BADGERSTORE_DISABLE_FSYNC envvar ([filecoin-project/lotus#6817](https://github.com/filecoin-project/lotus/pull/6817))
- Splitstore: add support for protecting out of chain references in the blockstore ([filecoin-project/lotus#6777](https://github.com/filecoin-project/lotus/pull/6777))
- fix deal concurrency test failures by upgrading graphsync and others ([filecoin-project/lotus#6724](https://github.com/filecoin-project/lotus/pull/6724))
- fix: on randomness change, use new rand ([filecoin-project/lotus#6805](https://github.com/filecoin-project/lotus/pull/6805)) - fix: always check if StateSearchMessage returns nil ([filecoin-project/lotus#6802](https://github.com/filecoin-project/lotus/pull/6802))
- test: fix flaky window post tests ([filecoin-project/lotus#6804](https://github.com/filecoin-project/lotus/pull/6804))
- wrap close(wait) with sync.Once to avoid panic ([filecoin-project/lotus#6800](https://github.com/filecoin-project/lotus/pull/6800))
- ClientRetrieve stops on cancel([filecoin-project/lotus#6739](https://github.com/filecoin-project/lotus/pull/6739))
- Fix bugs in sectors extend --v1-sectors ([filecoin-project/lotus#6066](https://github.com/filecoin-project/lotus/pull/6066))
- fix "lotus-seed genesis car" error "merkledag: not found" ([filecoin-project/lotus#6688](https://github.com/filecoin-project/lotus/pull/6688))
- Get retrieval pricing input should not error out on a deal state fetch ([filecoin-project/lotus#6679](https://github.com/filecoin-project/lotus/pull/6679))
- Fix more CID double-encoding as hex ([filecoin-project/lotus#6680](https://github.com/filecoin-project/lotus/pull/6680))
- storage: Fix FinalizeSector with sectors in stoage paths ([filecoin-project/lotus#6653](https://github.com/filecoin-project/lotus/pull/6653))
- Fix tiny error in check-client-datacap ([filecoin-project/lotus#6664](https://github.com/filecoin-project/lotus/pull/6664))
- Fix: precommit_batch method used the wrong cfg.CommitBatchWait ([filecoin-project/lotus#6658](https://github.com/filecoin-project/lotus/pull/6658))
- ValidateBlock: Assert that block header height's are greater than parents ([filecoin-project/lotus#6872](https://github.com/filecoin-project/lotus/pull/6872))
- feat: Don't panic when api impl is nil ([filecoin-project/lotus#6857](https://github.com/filecoin-project/lotus/pull/6857))
- api: Separate the Net interface from Common ([filecoin-project/lotus#6627](https://github.com/filecoin-project/lotus/pull/6627)) - add StateReadState to gateway api ([filecoin-project/lotus#6818](https://github.com/filecoin-project/lotus/pull/6818))
- polish(statetree): accept a context in statetree diff for timeouts ([filecoin-project/lotus#6639](https://github.com/filecoin-project/lotus/pull/6639))
- Add helptext to lotus chain export ([filecoin-project/lotus#6672](https://github.com/filecoin-project/lotus/pull/6672))
- add an incremental nonce itest. ([filecoin-project/lotus#6663](https://github.com/filecoin-project/lotus/pull/6663))
- commit batch: Initialize the FailedSectors map ([filecoin-project/lotus#6647](https://github.com/filecoin-project/lotus/pull/6647))
- Fast-path retry submitting commit aggregate if commit is still valid ([filecoin-project/lotus#6638](https://github.com/filecoin-project/lotus/pull/6638))
- Reuse timers in sealing batch logic ([filecoin-project/lotus#6636](https://github.com/filecoin-project/lotus/pull/6636))
- Set `SimultaneousTransfers` in lotus miner config to configure the maximum number of parallel online data transfers, including both storage and retrieval deals.
- Fix CircleCI gen ([filecoin-project/lotus#6589](https://github.com/filecoin-project/lotus/pull/6589))
- Make query-ask CLI more graceful ([filecoin-project/lotus#6590](https://github.com/filecoin-project/lotus/pull/6590))
- scale up sector expiration to avoid sector expire in batch-pre-commit waitting ([filecoin-project/lotus#6566](https://github.com/filecoin-project/lotus/pull/6566))
- Fix an error in msigLockCancel ([filecoin-project/lotus#6582](https://github.com/filecoin-project/lotus/pull/6582)
- fix circleci being out of sync. ([filecoin-project/lotus#6573](https://github.com/filecoin-project/lotus/pull/6573))
- Fix helptext for ask price([filecoin-project/lotus#6560](https://github.com/filecoin-project/lotus/pull/6560))
- gateway: Add support for Version method ([filecoin-project/lotus#6618](https://github.com/filecoin-project/lotus/pull/6618))
- revamped integration test kit (aka. Operation Sparks Joy) ([filecoin-project/lotus#6329](https://github.com/filecoin-project/lotus/pull/6329))
- move with changed name ([filecoin-project/lotus#6587](https://github.com/filecoin-project/lotus/pull/6587))
- dynamic circleci config for streamlining test execution ([filecoin-project/lotus#6561](https://github.com/filecoin-project/lotus/pull/6561))
- extern/storage: add ability to ignore worker resources when scheduling. ([filecoin-project/lotus#6542](https://github.com/filecoin-project/lotus/pull/6542))
- Adjust various CLI display ratios to arbitrary precision ([filecoin-project/lotus#6309](https://github.com/filecoin-project/lotus/pull/6309))
- Test multicore SDR support ([filecoin-project/lotus#6479](https://github.com/filecoin-project/lotus/pull/6479))
- Unit tests for sector batchers ([filecoin-project/lotus#6432](https://github.com/filecoin-project/lotus/pull/6432))
- Update chain list with correct help instructions ([filecoin-project/lotus#6465](https://github.com/filecoin-project/lotus/pull/6465))
- clean failed sectors in batch commit ([filecoin-project/lotus#6451](https://github.com/filecoin-project/lotus/pull/6451))
- itests/kit: add guard to ensure imports from tests only. ([filecoin-project/lotus#6445](https://github.com/filecoin-project/lotus/pull/6445))
- consolidate integration tests into `itests` package; create test kit; cleanup ([filecoin-project/lotus#6311](https://github.com/filecoin-project/lotus/pull/6311))
- Fee config for sector batching ([filecoin-project/lotus#6420](https://github.com/filecoin-project/lotus/pull/6420))
- UX: lotus state power CLI should fail if called with a not-miner ([filecoin-project/lotus#6425](https://github.com/filecoin-project/lotus/pull/6425))
- attempt to do better padding on pieces being written into sectors ([filecoin-project/lotus#5988](https://github.com/filecoin-project/lotus/pull/5988))
- remove duplicate ask and calculate ping before lock ([filecoin-project/lotus#5968](https://github.com/filecoin-project/lotus/pull/5968))
- flaky tests improvement: separate TestBatchDealInput from TestAPIDealFlow ([filecoin-project/lotus#6141](https://github.com/filecoin-project/lotus/pull/6141))
- Testground checks on push ([filecoin-project/lotus#5887](https://github.com/filecoin-project/lotus/pull/5887))
- Use EmptyTSK where appropriate ([filecoin-project/lotus#6134](https://github.com/filecoin-project/lotus/pull/6134))
- upgrade `lotus-soup` testplans and reduce deals concurrency to a single miner ([filecoin-project/lotus#6122](https://github.com/filecoin-project/lotus/pull/6122)
## Dependency Updates
- downgrade libp2p/go-libp2p-yamux to v0.5.1. ([filecoin-project/lotus#6605](https://github.com/filecoin-project/lotus/pull/6605))
- Update libp2p to 0.14.2 ([filecoin-project/lotus#6404](https://github.com/filecoin-project/lotus/pull/6404))
- update to markets-v1.4.0 ([filecoin-project/lotus#6369](https://github.com/filecoin-project/lotus/pull/6369))
- Use new actor tags ([filecoin-project/lotus#6291](https://github.com/filecoin-project/lotus/pull/6291))
- Update ffi to proofs v7 ([filecoin-project/lotus#6150](https://github.com/filecoin-project/lotus/pull/6150))
## Others
- Initial draft: basic build instructions on Readme ([filecoin-project/lotus#6498](https://github.com/filecoin-project/lotus/pull/6498))
- Remove rc changelog, compile the new changelog for final release only ([filecoin-project/lotus#6444](https://github.com/filecoin-project/lotus/pull/6444))
- updated configuration comments for docs ([filecoin-project/lotus#6440](https://github.com/filecoin-project/lotus/pull/6440))
- Set ntwk v13 HyperDrive Calibration upgrade epoch ([filecoin-project/lotus#6441](https://github.com/filecoin-project/lotus/pull/6441))
This is an optional but **highly recommended** release of Lotus for lotus miners that has many bug fixes and improvements based on the feedback we got from the community since HyperDrive.
-`AggregateAboveBaseFee` is added to miner sealing configuration for setting the network base fee to start aggregating proofs. When the network base fee is lower than this value, the prove commits will be submitted individually via `ProveCommitSector`. According to the [Batch Incentive Alignment](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0013.md#batch-incentive-alignment) introduced in FIP-0013, we recommend miners to set this value to 0.15 nanoFIL(which is the default value) to avoid unexpected aggregation fee in burn and enjoy the most benefits of aggregation!
This is an optional but **highly recommended** release of Lotus for lotus miners that has many bug fixes and improvements based on the feedback we got from the community since HyperDrive.
-`AggregateAboveBaseFee` is added to miner sealing configuration for setting the network base fee to start aggregating proofs. When the network base fee is lower than this value, the prove commits will be submitted individually via `ProveCommitSector`. According to the [Batch Incentive Alignment](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0013.md#batch-incentive-alignment) introduced in FIP-0013, we recommend miners to set this value to 0.15 nanoFIL(which is the default value) to avoid unexpected aggregation fee in burn and enjoy the most benefits of aggregation!
- [FIP-0011](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0011.md): Remove reward auction from reporting consensus faults
- [FIP-0012](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0012.md): DataCap Top up for FIL+ Client Addresses
- [FIP-0013](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0013.md): Add ProveCommitSectorAggregated method to reduce on-chain congestion
- [FIP-0015](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0015.md): Revert FIP-0009(Exempt Window PoSts from BaseFee burn)
Note that this release is built on top of Lotus v1.9.0. Enterprising users can use the `master` branch of Lotus to get the latest functionality, including all changes in this release candidate.
FIPs [0008](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0008.md) and [0013](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0013.md) combine to allow for a significant increase in the rate of onboarding storage on the Filecoin network. This aims to lead to more useful data being stored on the network, reduced network congestion, and lower network base fee.
**Check out the documentation [here](https://docs.filecoin.io/mine/lotus/miner-configuration/#precommitsectorsbatch) for details on the new Lotus miner sealing config options, [here](https://docs.filecoin.io/mine/lotus/miner-configuration/#fees-section) for fee config options, and explanations of the new features.**
In order to validate the Hyperdrive changes, we wrote a simulation to seal as many sectors as quickly as possible, assuming the same number and mix of 32GiB and 64GiB miners as the current network.
- We'd expect the [state-tree](https://spec.filecoin.io/#section-systems.filecoin_vm.state_tree) (and therefore [snapshot](https://docs.filecoin.io/get-started/lotus/chain/#lightweight-snapshot)) size to grow by 1.16GiB per day.
Various Lotus improvements are planned moving forward to mitigate the effects of the growing state tree size. The primary improvement is the [Lotus splitstore](https://github.com/filecoin-project/lotus/discussions/5788), which will soon be enabled by default. The feature allows for [online garbage collection](https://github.com/filecoin-project/lotus/issues/6577) for nodes that do not seek to maintain full chain and state history, thus eliminating the need for users to delete their datastores and sync from snapshots.
Included in the HyperDrive upgrade is [FIP-0015](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0015.md) which eliminates the special-case gas treatment of `SubmitWindowedPoSt` messages that was introduced in [FIP-0009](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0009.md). Although `SubmitWindowedPoSt` messages will be relatively cheap, thanks to the introduction of optimistic acceptance of these proofs in [FIP-0010](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0010.md), storage providers should pay attention to their `MaxWindowPoStGasFee` config option: too low and PoSts may not land on chain; too high and they may cost an exorbitant amount!
This is a mandatory release of Lotus that upgrades the network to version 12, which introduces various performance improvements to the cron processing of the power actor. The network will upgrade at height 712320, which is 2021-04-29T06:00:00Z.
This is a mandatory release of Lotus that upgrades the network to version 11, which implements [FIP-0014](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0014.md). The network will upgrade at height 665280, which is 2021-04-12T22:00:00Z.
This release also expands the `lotus-miner sectors extend` CLI, with a new option that automatically extends all extensible v1 sectors. The option can be run using `lotus-miner sectors extend --v1-sectors`.
- The `tolerance` flag can be passed to indicate what durations aren't "worth" extending. It defaults to one week, which means that sectors whose current lifetime's are within one week of the maximum possible lifetime will not be extended.
- The `expiration-cutoff` flag can be passed to skip sectors whose expiration is past a certain point from the current head. It defaults to infinity (no cutoff), but if, say, 28800 was specified, then only sectors expiring in the next 10 days would be extended (2880 epochs in 1 day).
This is an hotfix release of Lotus that fixes a critical bug introduced in v1.5.1 in the miner windowPoSt logic. This upgrade is only affecting miner nodes.
## Changes
- fix window post rand check (https://github.com/filecoin-project/lotus/pull/5773)
- wdpost: Always use head tipset to get randomness (https://github.com/filecoin-project/lotus/pull/5774)
This is an optional release of Lotus that introduces an important fix to the WindowPoSt computation process. The change is to wait for some confidence before drawing beacon randomness for the proof. Without this, invalid proofs might be generated as the result of a null tipset.
This release also introduces the splitstore, a new optional blockstore that segregates the monolithic blockstore into cold and hot regions. The hot region contains objects from the last 4-5 finalities plus all reachable objects from two finalities away. All other objects are moved to the cold region using a compaction process that executes every finality, once 5 finalities have elapsed.
The splitstore allows us to separate the two regions quite effectively, using two separate badger blockstores. The separation
means that the live working set is much smaller, which results in potentially significant performance improvements. In addition, it means that the coldstore can be moved to a separate (bigger, slower, cheaper) disk without loss of performance.
The design also allows us to use different implementations for the two blockstores; for example, an append-only blockstore could be used for coldstore and a faster memory mapped blockstore could be used for the hotstore (eg LMDB). We plan to experiment with these options in the future.
Once the splitstore has been enabled, the existing monolithic blockstore becomes the coldstore. On the first head change notification, the splitstore will warm up the hotstore by copying all reachable objects from the current tipset into the hotstore. All new writes go into the hotstore, with the splitstore tracking the write epoch. Once 5 finalities have elapsed, and every finality thereafter, the splitstore compacts by moving cold objects into the coldstore. There is also experimental support for garbage collection, whereby nunreachable objects are simply discarded.
To enable the splitstore, add the following to config.toml:
```
[Chainstore]
EnableSplitstore = true
```
## Highlights
Other highlights include:
- Improved deal data handling - now multiple deals can be adding to sectors in parallel
- Rewriten sector pledging - it now actually cares about max sealing sector limits
- Better handling for sectors stuck in the RecoverDealIDs state
- lotus-miner sectors extend command
- Optional configurable storage path size limit
- Config to disable owner/worker fallback from control addresses (useful when owner is a key on a hardware wallet)
- A write log for node metadata, which can be restored as a backup when the metadata leveldb becomes corrupted (e.g. when you run out of disk space / system crashes in some bad way)
## Changes
- avoid use mp.cfg directly to avoid race (https://github.com/filecoin-project/lotus/pull/5350)
- Show replacing message CID is state search-msg cli (https://github.com/filecoin-project/lotus/pull/5656)
- Fix riceing by importing the main package (https://github.com/filecoin-project/lotus/pull/5675)
- Remove sectors with all deals expired in RecoverDealIDs (https://github.com/filecoin-project/lotus/pull/5658)
This is a mandatory release of Lotus that introduces the fifth upgrade to the Filecoin network. The network upgrade occurs at height 550321, before which time all nodes must have updated to this release (or later). At this height, [v3 specs-actors](https://github.com/filecoin-project/specs-actors/releases/tag/v3.0.0) will take effect, which in turn implements the following two FIPs:
- [FIP-0007 h/amt-v3](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0007.md) which improves the performance of the Filecoin HAMT and AMT.
- [FIP-0010 off-chain Window PoSt Verification](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0010.md) which reduces the gas consumption of `SubmitWindowedPoSt` messages significantly by optimistically accepting Window PoSt proofs without verification, and allowing them to be disputed later by off-chain verifiers.
Note that the integration of v3 actors was already completed in 1.4.2, this upgrade simply sets the epoch for the upgrade to occur.
## Disputer
FIP-0010 introduces the ability to dispute bad Window PoSts. Node operators are encouraged to run the new Lotus disputer alongside their Lotus daemons. For more information, see the announcement [here](https://github.com/filecoin-project/lotus/discussions/5617#discussioncomment-387333).
## Changes
- [#5341](https://github.com/filecoin-project/lotus/pull/5341) Add a `LOTUS_DISABLE_V3_ACTOR_MIGRATION` envvar
This is a large, and highly recommended, optional release with new features and improvements for lotus miner and deal-making UX. The release also integrates [v3 specs-actors](https://github.com/filecoin-project/specs-actors/releases/tag/v3.0.0), which implements two FIPs:
- [FIP-0007 h/amt-v3](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0007.md) which improves the performance of the Filecoin HAMT and AMT.
- [FIP-0010 off-chain Window PoSt Verification](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0010.md) which reduces the gas consumption of `SubmitWindowedPoSt` messages significantly by optimistically accepting Window PoSt proofs without verification, and allowing them to be disputed later by off-chain verifiers.
- This is to support [FIP-0010 off-chian Window PoSt verification](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0010.md)
- See how to run a disputer [here](https://github.com/filecoin-project/lotus/pull/5379#issuecomment-776482445)
- [#5309](https://github.com/filecoin-project/lotus/pull/5309) Batch multiple deals in one `PublishStorageMessages`
- [#5411](https://github.com/filecoin-project/lotus/pull/5411) Handle batch `PublishStorageDeals` message in sealing recovery
- [#5505](https://github.com/filecoin-project/lotus/pull/5505) Exclude expired deals from batching in `PublishStorageDeals` messages
- Added `PublishMsgPeriod` and `MaxDealsPerPublishMsg` to miner `Dealmaking` [configuration](https://docs.filecoin.io/mine/lotus/miner-configuration/#dealmaking-section). See how they work [here](https://docs.filecoin.io/mine/lotus/miner-configuration/#publishing-several-deals-in-one-message).
- [#5538](https://github.com/filecoin-project/lotus/pull/5538), [#5549](https://github.com/filecoin-project/lotus/pull/5549) Added a command to list pending deals and force publish messages.
- [#5417](https://github.com/filecoin-project/lotus/pull/5417) Storage Manager: Always unseal full sectors
- [#5393](https://github.com/filecoin-project/lotus/pull/5393) Switched to [filecoin-ffi bls api ](https://github.com/filecoin-project/filecoin-ffi/pull/159)for bls signatures
- [#5570](https://github.com/filecoin-project/lotus/pull/5570) Added code CID to `StateReadState` return object
- [#5565](https://github.com/filecoin-project/lotus/pull/5565) Added storageadapter.PublishMsgConfig to miner in testkit for lotus-soup testplan
- [#5571](https://github.com/filecoin-project/lotus/pull/5571) Added `lotus-seed gensis car` to generate lotus block for devnets
- [#5613](https://github.com/filecoin-project/lotus/pull/5613) Check format in client commP util
- [#5507](https://github.com/filecoin-project/lotus/pull/5507) Refactored coalescing logic into its own function and take both cancellation sets into account
- [#5592](https://github.com/filecoin-project/lotus/pull/5592) Verify FFI version before building
- [#5296](https://github.com/filecoin-project/lotus/pull/5396) Upgraded to [raulk/go-watchdog@v1.0.1](https://github.com/raulk/go-watchdog/releases/tag/v1.0.1)
- [#5425](https://github.com/filecoin-project/lotus/pull/5425) Fixed stale imports in testplans/lotus-soup
- [#5535](https://github.com/filecoin-project/lotus/pull/5535) Updated to [go-fil-markets@v1.1.7](https://github.com/filecoin-project/go-fil-markets/releases/tag/v1.1.7)
- [#5616](https://github.com/filecoin-project/lotus/pull/5600) Updated to [filecoin-ffi@b6e0b35fb49ed0fe](https://github.com/filecoin-project/filecoin-ffi/releases/tag/b6e0b35fb49ed0fe)
- [#5599](https://github.com/filecoin-project/lotus/pull/5599) Updated to [go-bitfield@v0.2.4](https://github.com/filecoin-project/go-bitfield/releases/tag/v0.2.4)
- [#5614](https://github.com/filecoin-project/lotus/pull/5614), , [#5621](https://github.com/filecoin-project/lotus/pull/5621) Updated to [go-jsonrpc@v0.1.3](https://github.com/filecoin-project/go-jsonrpc/releases/tag/v0.1.3)
- [#5459](https://github.com/filecoin-project/lotus/pull/5459) Updated to [spec-actors@v3.0.1](https://github.com/filecoin-project/specs-actors/releases/tag/v3.0.1)
- [#5473](https://github.com/filecoin-project/lotus/pull/5473) Merged staging branch for v1.5.0
- [#5603](https://github.com/filecoin-project/lotus/pull/5603) Set nerpanet's upgrade epochs up to v3 actors
- [#5471](https://github.com/filecoin-project/lotus/pull/5471), [#5456](https://github.com/filecoin-project/lotus/pull/5456) Set calibration net actor v3 migration epochs for testing
This is an optional Lotus release that introduces various improvements to the sealing, mining, and deal-making processes. In particular, [#5341](https://github.com/filecoin-project/lotus/pull/5341) introduces the ability for Lotus miners to terminate sectors.
## Changes
#### Core Lotus
- fix(sync): enforce ForkLengthThreshold for synced chain (https://github.com/filecoin-project/lotus/pull/5182)
This is a MANDATORY hotfix release of Lotus that resolves a chain halt at height 336,459 caused by nondeterminism in specs-actors. The fix is to update actors to 2.3.3 in order to incorporate this fix https://github.com/filecoin-project/specs-actors/pull/1334.
This is a mandatory release of Lotus that introduces the third post-liftoff upgrade to the Filecoin network. The network upgrade occurs at height 343200, before which time all nodes must have updated to this release (or later). The change that breaks consensus is an implementation of FIP-0009(https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0009.md).
## Changes
- Disable gas burning for window post messages (https://github.com/filecoin-project/lotus/pull/5200)
This is an optional Lotus release that introduces various improvements to the mining logic and deal-making workflow, as well as several new UX features.
This is a very small release of Lotus that fixes an issue users are experiencing when importing snapshots. There is no need to upgrade unless you experience an issue with creating a new datastore directory in the Lotus repo.
This is a mandatory release of Lotus that introduces the second post-liftoff upgrade to the Filecoin network. The network upgrade occurs at height 265200, before which time all nodes must have updated to this release (or later). This release also bumps the required version of Go to 1.15.
- Upgrading to sepcs-actors 2.3.2 (https://github.com/filecoin-project/specs-actors/releases/tag/v2.3.2)
- Introducing proofs v5.4.0 (https://github.com/filecoin-project/rust-fil-proofs/releases/tag/storage-proofs-v5.4.0), and switching between the proof types (https://github.com/filecoin-project/lotus/pull/4873)
- Don't use terminated sectors for winning PoSt (https://github.com/filecoin-project/lotus/pull/4770)
- Various small VM-level edge-case handling (https://github.com/filecoin-project/lotus/pull/4783)
- Correction of the VM circulating supply calculation (https://github.com/filecoin-project/lotus/pull/4862)
- Retuning gas costs (https://github.com/filecoin-project/lotus/pull/4830)
- Avoid sending messages to the zero BLS address (https://github.com/filecoin-project/lotus/pull/4888)
This is an optional release of Lotus that upgrades Lotus dependencies, and includes many performance enhancements, bugfixes, and UX improvements.
## Highlights
- Refactored much of the miner code (https://github.com/filecoin-project/lotus/pull/3618), improving its recovery from restarts and overall sector success rate
- Updated [proofs](https://github.com/filecoin-project/rust-fil-proofs) to v5.3.0, which brings significant performance improvements
- Updated [markets](https://github.com/filecoin-project/go-fil-markets/releases/tag/v1.0.4) to v1.0.4, which reduces failures due to reorgs (https://github.com/filecoin-project/lotus/pull/4730) and uses the newly refactored fund manager (https://github.com/filecoin-project/lotus/pull/4736)
## Changes
#### Core Lotus
- polish: add Equals method to MinerInfo shim (https://github.com/filecoin-project/lotus/pull/4604)
This is a patch release of Lotus that builds on the fixes involving worker keys that was introduced in v1.1.1. Miners and node operators should update to this release as soon as possible in order to ensure their blocks are propagated and validated.
This is a patch release of Lotus that addresses some issues caused by when miners change their worker keys. Miners and node operators should update to this release as soon as possible, especially any miner who has changed their worker key recently.
## Changes
- Miner finder for interactive client deal CLI (https://github.com/filecoin-project/lotus/pull/4504)
This is a mandatory release that introduces the first post-liftoff upgrade to the Filecoin network. The changes that break consensus are an upgrade to specs-actors v2.2.0 at epoch 170000.
## Changes
- Introduce Network version 6 (https://github.com/filecoin-project/lotus/pull/4506)
It's 1.0.0! This is an optional release of Lotus that introduces some UX improvements to the 0.10 series.
This very small release is largely cosmetic, and intended to flag the code that the Filecoin mainnet was launched with.
## API changes
-`StateMsgGasCost` has been removed. The equivalent information can be gained by calling `StateReplay`.
- A `GasCost` field has been added to the `InvocResult` type, meaning detailed gas costs will be returned when calling `StateReplay`, `StateCompute`, and `StateCall`.
- The behaviour of `StateReplay` in response to an empty tipset key has been changed. Instead of simply using the heaviest tipset (which is almost guaranteed to be an unsuccessful replay), we search now search the chain for the tipset that included the message, and replay the message in that tipset (we fail if no such tipset is found).
This is an optional release of Lotus that updates markets to 0.9.1, which fixes an issue affecting deals that were mid-transfer when the node was upgraded to 0.9.0. This release also includes some tweaks to default gas values and minor performance improvements.
## Changes
- Use updated stored ask API (https://github.com/filecoin-project/lotus/pull/4384)
- tvx: trace puts to blockstore for inclusion in CAR. (https://github.com/filecoin-project/lotus/pull/4278)
This is an optional release of Lotus that updates markets to 0.9.0, which adds the ability to restart data transfers. This release also introduces Ledger support, and various UX improvements.
## Changes
- Test the tape upgrade (https://github.com/filecoin-project/lotus/pull/4328)
- Adding in Ledger support (https://github.com/filecoin-project/lotus/pull/4290)
- Improve the UX for lotus-miner sealing workers (https://github.com/filecoin-project/lotus/pull/4329)
- Add a CLI tool for miner's to repay debt (https://github.com/filecoin-project/lotus/pull/4319)
- Rename params_testnet to params_mainnet (https://github.com/filecoin-project/lotus/pull/4336)
- Use seal-duration in calculating the earliest StartEpoch (https://github.com/filecoin-project/lotus/pull/4337)
- Reject deals that are > 7 days in the future in the BasicDealFilter (https://github.com/filecoin-project/lotus/pull/4173)
- Add an API endpoint to calculate the exact circulating supply (https://github.com/filecoin-project/lotus/pull/4148)
- lotus-pcr: ignore all other market messages (https://github.com/filecoin-project/lotus/pull/4341)
- Add message CID to InvocResult (https://github.com/filecoin-project/lotus/pull/4382)
- types: Add CID fields to messages in json marshalers (https://github.com/filecoin-project/lotus/pull/4338)
- fix(sync state): set state height to actual tipset height (https://github.com/filecoin-project/lotus/pull/4347)
- Fix off by one tipset in searchBackForMsg (https://github.com/filecoin-project/lotus/pull/4367)
- fix a panic on startup when we fail to load the tipset (https://github.com/filecoin-project/lotus/pull/4376)
- Avoid having the same message CID show up in execution traces (https://github.com/filecoin-project/lotus/pull/4350)
- feat(markets): update markets 0.9.0 and add data transfer restart (https://github.com/filecoin-project/lotus/pull/4363)
This is a consensus-breaking hotfix that addresses an issue in specs-actors v2.0.3 that made it impossible to pledge new 32GiB sectors. The change in Lotus is to update to actors v2.1.0, behind the new network version 5.
## Changes
- make pledge test pass with the race detector (https://github.com/filecoin-project/lotus/pull/4291)
- fix a race in tipset cache usage (https://github.com/filecoin-project/lotus/pull/4282)
- add an api for removing multisig signers (https://github.com/filecoin-project/lotus/pull/4274)
- cli: Don't output errors to stdout (https://github.com/filecoin-project/lotus/pull/4298)
- Fix panic in wallet export when key is not found (https://github.com/filecoin-project/lotus/pull/4299)
- Dump the block validation cache whenever we perform an import (https://github.com/filecoin-project/lotus/pull/4287)
- Fix two races (https://github.com/filecoin-project/lotus/pull/4301)
This release fixes an issue which may cause the actors v2 migration to compute the state incorrectly when more than one migration is running in parallel.
## Changes
- Make concurrent actor migrations safe (https://github.com/filecoin-project/lotus/pull/4293)
This consensus-breaking release of Lotus upgrades the actors version to v2.0.0. This requires migrating actor state from v0 to v2. The changes that break consensus are:
- Introducing v2 actors and its migration (https://github.com/filecoin-project/lotus/pull/3936)
- Runtime's Receiver() should only return ID addresses (https://github.com/filecoin-project/lotus/pull/3589)
- Update miner eligibility checks for v2 actors (https://github.com/filecoin-project/lotus/pull/4188)
- Add funds that have left FilReserve to circ supply (https://github.com/filecoin-project/lotus/pull/4160)
- Set WinningPoStSectorSetLookback to finality post-v2 actors (https://github.com/filecoin-project/lotus/pull/4190)
- fix: error when actor panics directly (https://github.com/filecoin-project/lotus/pull/3697)
- Lotus-pcr: Limit the fee cap of messages we will process, refund gas fees for windowed post and storage deals (https://github.com/filecoin-project/lotus/pull/4198)
This optional release of Lotus introduces a new version of markets which switches to CBOR-map encodings, and allows datastore migrations. The release also introduces several improvements to the mining process, a few performance optimizations, and a battery of UX additions and enhancements.
This consensus-breaking release of Lotus introduces an upgrade to the network. The changes that break consensus are:
- Upgrading to specs-actors v0.9.11, which reduces WindowPoSt faults per [FIP 0002](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0002.md) to reduce cost for honest miners with occasional faults (see https://github.com/filecoin-project/specs-actors/pull/1181)
- Revisions to some cryptoeconomics and network params
This release also updates go-fil-markets to fix an incompatibility issue between v0.7.2 and earlier versions.
This optional release of Lotus introduces a major refactor around how a Lotus node interacts with code from the specs-actors repo. We now use interfaces to read the state of actors, which is required to be able to reason about different versions of actors code at the same time.
- Add basic deal stats api server for spacerace slingshot (https://github.com/filecoin-project/lotus/pull/3963)
- When doing `sectors update-state`, show a list of existing states if user inputs an invalid one (https://github.com/filecoin-project/lotus/pull/3944)
This optional release of Lotus introduces some critical fixes to the window PoSt process. It also upgrades some core dependencies, and introduces many improvements to the mining process, deal-making cycle, and overall User Experience.
This consensus-breaking release of Lotus is designed to test a network upgrade on the space race testnet. The changes that break consensus are:
- Upgrading the Drand network used from the test Drand network to the League of Entropy main drand network. This is the same Drand network that will be used in the Filecoin mainnet.
- Upgrading to specs-actors v0.9.8, which adds a new method to the Multisig actor.
This release introduces some critical fixes to message selection and gas estimation logic. It also adds the ability for nodes to mark a certain tipset as checkpointed, as well as various minor improvements and bugfixes.
This consensus-breaking release of Lotus is designed to test a network upgrade on the space race testnet. The changes that break consensus are:
- Tweaking of some cryptoecon parameters in specs-actors 0.9.7 (https://github.com/filecoin-project/specs-actors/releases/tag/v0.9.7)
- Rebalancing FIL distribution to make testnet FIL scarce, which prevents base fee spikes and sets better expectations for mainnet
This release also introduces many improvements to Lotus! Among them are a new version of go-fil-markets that supports non-blocking retrieval, various spam reduction measures in the messagepool and p2p logic, and UX improvements to payment channels, dealmaking, and state inspection.
- Make chain export ~1000x times faster (https://github.com/filecoin-project/lotus/pull/3533)
- Chainwatch: Stop SyncIncomingBlocks from leaking into chainwatch processing; No panics during processing (https://github.com/filecoin-project/lotus/pull/3526)
- Conformance: various changes (https://github.com/filecoin-project/lotus/pull/3521)
This patch includes some bugfixes to the sector sealing process, and updates go-fil-markets. It also improves the performance of blocksync, adds a method to export chain state trees, and improves chainwatch.
## Changes
- Upgrade markets to v0.5.9 (https://github.com/filecoin-project/lotus/pull/3496)
- Improve blocksync to load fewer messages: (https://github.com/filecoin-project/lotus/pull/3494)
- Fix a panic in the ffi-wrapper's `ReadPiece` (https://github.com/filecoin-project/lotus/pull/3492/files)
- Fix a deadlock in the sealing scheduler (https://github.com/filecoin-project/lotus/pull/3489)
- Add test vectors for tipset tests (https://github.com/filecoin-project/lotus/pull/3485/files)
- Improve the advance-block debug command (https://github.com/filecoin-project/lotus/pull/3476)
- Add toggle for message processing to Lotus PCR (https://github.com/filecoin-project/lotus/pull/3470)
- Allow exporting recent chain state trees (https://github.com/filecoin-project/lotus/pull/3463)
- Remove height from chain rand (https://github.com/filecoin-project/lotus/pull/3458)
- Disable GC on chain badger datastore (https://github.com/filecoin-project/lotus/pull/3457)
- Account for `GasPremium` in `GasEstimateFeeCap` (https://github.com/filecoin-project/lotus/pull/3456)
- Update go-libp2p-pubsub to `master` (https://github.com/filecoin-project/lotus/pull/3455)
is increased when blocks are densely packed with messages, and decreased otherwise.
The `ParentBaseFee` is used when calculating how much a sender burns when executing a message. _Burning_ simply refers to sending attoFIL to a dedicated, unreachable account.
A message causes `ParentBaseFee * GasUsed` attoFIL to be burnt.
#### Real gas values
This release also includes our first "real" gas costs for primitive operations.
The costs were designed to account for both the _time_ that message execution takes,
as well as the _space_ a message adds to the state tree.
## Deal-making changes
There are three key changes to the deal-making process.
#### Committed Capacity sectors
Miners can now pledge "Committed Capacity" (CC) sectors, which are explicitly
stated as containing junk data, and must not include any deals. Miners can do this
to increase their storage power, and win block rewards from this pledged storage.
They can mark these sectors as "upgradable" with `lotus-miner sectors mark-for-upgrade`.
If the miner receives and accepts one or more storage deals, the sector that includes
those deals will _replace_ the CC sector. This is intended to maximize the amount of useful
storage on the Filecoin network.
#### Fast-retrieval deals
Clients can now include a `fast-retrieval` flag when proposing deals with storage miners.
If set to true, the miner will include an extra copy of the deal data. This
data can be quickly served in a retrieval deal, since it will not need to be unsealed.
#### Multiple deals per sector
Miners can now pack multiple deals into a single sector, so long as all the deals
fit into the sector capacity. This should increase the packing efficiency of miners.
- Upgrades markets to v0.5.6 (https://github.com/filecoin-project/lotus/pull/3058)
- Upgrades specs-actors to v0.9.3 (https://github.com/filecoin-project/lotus/pull/3151)
#### Core protocol
- Introduces gas values, replacing placeholders (https://github.com/filecoin-project/lotus/pull/2343)
- Implements EIP-1559, introducing a network base fee, message gas fee cap, and message gas fee premium (https://github.com/filecoin-project/lotus/pull/2874)
- Implements Poisson Sortition for elections (https://github.com/filecoin-project/lotus/pull/2084)
We are very excited to release **lotus** 0.1.0. This is our testnet release. To install lotus and join the testnet, please visit [lotu.sh](lotu.sh). Please file bug reports as [issues](https://github.com/filecoin-project/lotus/issues).
