diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c75045af..6ad9c0610 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ include(EthPolicy)
 eth_policy()
 
 # project name and version should be set after cmake_policy CMP0048
-set(PROJECT_VERSION "0.4.0")
+set(PROJECT_VERSION "0.4.1")
 project(solidity VERSION ${PROJECT_VERSION})
 
 # Let's find our dependencies
diff --git a/cmake/scripts/buildinfo.cmake b/cmake/scripts/buildinfo.cmake
index 963c74e4b..e2f8cb3eb 100644
--- a/cmake/scripts/buildinfo.cmake
+++ b/cmake/scripts/buildinfo.cmake
@@ -48,7 +48,7 @@ if (SOL_COMMIT_HASH)
 endif()
 
 if (SOL_COMMIT_HASH AND SOL_LOCAL_CHANGES)
-	set(SOL_COMMIT_HASH "${SOL_COMMIT_HASH}-mod")
+	set(SOL_COMMIT_HASH "${SOL_COMMIT_HASH}.mod")
 endif()
 
 if (NOT SOL_COMMIT_HASH)
diff --git a/libsolidity/interface/Version.cpp b/libsolidity/interface/Version.cpp
index 31ba4afc1..0dca1cedc 100644
--- a/libsolidity/interface/Version.cpp
+++ b/libsolidity/interface/Version.cpp
@@ -58,12 +58,14 @@ bytes dev::solidity::binaryVersion()
 	solAssert(i < VersionString.size() && VersionString[i] == '.', "");
 	++i;
 	ret.push_back(byte(parseDecimal()));
-	solAssert(i < VersionString.size() && VersionString[i] == '-', "");
+	solAssert(i < VersionString.size() && (VersionString[i] == '-' || VersionString[i] == '+'), "");
 	++i;
+	size_t commitpos = VersionString.find("commit.");
+	solAssert(commitpos != string::npos, "");
+	i = commitpos + 7;
 	solAssert(i + 7 < VersionString.size(), "");
 	bytes commitHash = fromHex(VersionString.substr(i, 8));
-	if (commitHash.empty())
-		commitHash = bytes(4, 0);
+	solAssert(!commitHash.empty(), "");
 	ret += commitHash;
 	solAssert(ret.size() == 1 + 3 + 4, "");
 
diff --git a/scripts/travis-emscripten/publish_binary.sh b/scripts/travis-emscripten/publish_binary.sh
index d202764a0..e89e3ce3e 100755
--- a/scripts/travis-emscripten/publish_binary.sh
+++ b/scripts/travis-emscripten/publish_binary.sh
@@ -34,7 +34,7 @@ VER=$(cat CMakeLists.txt | grep 'set(PROJECT_VERSION' | sed -e 's/.*set(PROJECT_
 test -n "$VER"
 VER="v$VER"
 COMMIT=$(git rev-parse --short HEAD)
-DATE=$(date --date="$(git log -1 --date=iso --format=%ad HEAD)" --utc +%F)
+DATE=$(date --date="$(git log -1 --date=iso --format=%ad HEAD)" --utc +%Y.%m.%d)
 
 ENCRYPTED_KEY_VAR="encrypted_${ENCRYPTION_LABEL}_key"
 ENCRYPTED_IV_VAR="encrypted_${ENCRYPTION_LABEL}_iv"
@@ -52,14 +52,14 @@ git config user.email "chris@ethereum.org"
 git checkout -B gh-pages origin/gh-pages
 git clean -f -d -x
 # We only want one release per day and we do not want to push the same commit twice.
-if ls ./bin/soljson-"$VER-$DATE"-*.js || ls ./bin/soljson-*-"$COMMIT.js"
+if ls ./bin/soljson-"$VER-nightly.$DATE"-*.js || ls ./bin/soljson-*"commit.$COMMIT.js"
 then
   echo "Not publishing, we already published this version today."
   exit 0
 fi
 
 # This file is assumed to be the product of the build_emscripten.sh script.
-cp ../soljson.js ./bin/"soljson-$VER-$DATE-$COMMIT.js"
+cp ../soljson.js ./bin/"soljson-$VER-nightly.$DATE+commit.$COMMIT.js"
 node ./update
 cd bin
 LATEST=$(ls -r soljson-v* | head -n 1)
diff --git a/test/contracts/AuctionRegistrar.cpp b/test/contracts/AuctionRegistrar.cpp
index 05da34901..277de4eb2 100644
--- a/test/contracts/AuctionRegistrar.cpp
+++ b/test/contracts/AuctionRegistrar.cpp
@@ -39,7 +39,7 @@ namespace
 {
 
 static char const* registrarCode = R"DELIMITER(
-pragma solidity ^0.3.5;
+pragma solidity ^0.4.0;
 
 contract NameRegister {
 	function addr(string _name) constant returns (address o_owner);
diff --git a/test/contracts/FixedFeeRegistrar.cpp b/test/contracts/FixedFeeRegistrar.cpp
index af8ee5950..736015fae 100644
--- a/test/contracts/FixedFeeRegistrar.cpp
+++ b/test/contracts/FixedFeeRegistrar.cpp
@@ -52,7 +52,7 @@ static char const* registrarCode = R"DELIMITER(
 // @authors:
 //   Gav Wood <g@ethdev.com>
 
-pragma solidity ^0.3.5;
+pragma solidity ^0.4.0;
 
 contract Registrar {
 	event Changed(string indexed name);
diff --git a/test/contracts/Wallet.cpp b/test/contracts/Wallet.cpp
index b4f29a872..cfc630d4f 100644
--- a/test/contracts/Wallet.cpp
+++ b/test/contracts/Wallet.cpp
@@ -55,7 +55,7 @@ static char const* walletCode = R"DELIMITER(
 // some number (specified in constructor) of the set of owners (specified in the constructor, modifiable) before the
 // interior is executed.
 
-pragma solidity ^0.3.5;
+pragma solidity ^0.4.0;
 
 contract multiowned {
 
diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index 3c85d8a85..7ee5700c7 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -5961,7 +5961,7 @@ BOOST_AUTO_TEST_CASE(version_stamp_for_libraries)
 	bytes runtimeCode = compileAndRun(sourceCode, 0, "lib");
 	BOOST_CHECK(runtimeCode.size() >= 8);
 	BOOST_CHECK_EQUAL(runtimeCode[0], int(Instruction::PUSH6)); // might change once we switch to 1.x.x
-	BOOST_CHECK_EQUAL(runtimeCode[1], 3); // might change once we switch away from x.3.x
+	BOOST_CHECK_EQUAL(runtimeCode[1], 4); // might change once we switch away from x.4.x
 	BOOST_CHECK_EQUAL(runtimeCode[7], int(Instruction::POP));
 }