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update CHANGELOG and ROADMAP, release 0.51.0
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Roman Khimov
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CHANGELOG.md
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CHANGELOG.md
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This document outlines major changes between releases.
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## 0.51.0 "Confirmation" (17 Oct 2019)
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With over a 100 commits made since 0.50.0 release 0.51.0 brings with it full
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block verification, improved and fixed transaction verifications,
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implementation of most of interop functions and VM improvements. Block
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verification is an important milestone on the road to full consensus node
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support and it required implementing a lot of other associated functionality.
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New features:
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* CHECKSIG, VERIFY and CHECKMULTISIG instructions in VM (#269)
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* witness verification logic for transactions (#368)
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* NEWMAP, HASKEY, KEYS and VALUES instructions, support for Map type in
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PICKITEM, SETITEM, REMOVE, EQUAL, ARRAYSIZE (#359)
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* configurable transaction verification on block addition (#415, #418)
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* contract storage and support for VM to call contracts via APPCALL/TAILCALL
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(#417)
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* support for Interop type in VM (#417)
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* VM now has stepInto/stepOver/stepOut method implementations for debugging
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matching neo-vm behavior (#187)
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* storage support for contracts (#418)
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* added around 90% of interop functions (#418)
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* Invocation TX processing now really does invoke contracts using internal VM
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(#418)
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* blocks are now completely verified when added to the chain (if not
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configured otherwise; #12, #418)
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Behavior changes:
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* full block verification is now enabled for all network types
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* block's transaction verification enabled for privnet setups, mainnet and
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testnet don't have it enabled
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Technical improvements:
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* GetVarIntSize and GetVarStringSize were removed from the io package (use
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GetVarSize instead; #408)
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* OVER implementation was optimized to not pop the top element from the stack
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(#406, part of #196 work)
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* vm.VM was extended with HasFailed() method to check its state (previously
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external VM users couldn't do it; #411)
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* redesigned input block queue mechanism, now it's completely moved out of
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the Blockchain, which only accepts the next block via AddBlock() (#414)
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* unpersisted blocks are now fully available with the Blockchain (thus we
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have symmetry now in AddBlock/GetBlock APIs; #414, #366)
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* removed duplicating batch structures from BoltDB and Redis code, now all of
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them use the same batch as MemoryStore does (#414)
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* MemoryStore was exporting its mutex for no good reason, now it's hidden
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(#414)
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* storage layer now returns ErrKeyNotFound for all DBs in appropriate
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situations (#414)
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* VM's PopResult() now doesn't panic if there is no result (#417)
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* VM's Element now has a Value() method to quickly get the item value (#417)
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* VM's stack PushVal() method now accepts uint8/16/32/64 (#417, #418)
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* VM's Element now has TryBool() method similar to Bool(), but without a
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panic (for external VM users; #417)
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* VM has now completely separated instruction read and execution phases
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(#417)
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* Store interface now has Delete method (#418)
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* Store tests were reimplemented to use one test set for all Store
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implementations, including LevelDB that was not tested at all previously
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(#418)
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* Batch interface doesn't have Len method now as it's not used at all (#418)
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* New*FromRawBytes functions were renamed to New*FromASN1 in the keys
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package, previous naming made it easy to confuse them with functions
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operating with NEO serialization format (#418)
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* PublicKey's IsInfinity method is exported now (#418)
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* smartcontract package now has CreateSignatureRedeemScript() matching C#
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code (#418)
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* vm package now has helper functions
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IsSignatureContract/IsMultiSigContract/IsStandardContract matching C# code
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(#418)
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* Blockchain's GetBlock() now returns full block with transactions (#418)
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* Block's Verify() was changed to return specific error (#418)
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* Blockchain's GetTransationResults was renamed into GetTransactionResults
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(#418)
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* Blockchainer interface was extended with GetUnspentCoinState,
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GetContractState and GetScriptHashesForVerifying methods (#418)
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* introduced generic MemCacheStore that is used now for write caching
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(including temporary stores for transaction processing) and batched
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persistence (#425)
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Bugs fixed:
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* useless persistence failure message printed with no error (#409)
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* persistence error message being printed twice (#409)
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* segmentation fault upon receival of message that is not currently handled
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properly (like "consensus" message; #409)
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* BoltDB's Put for a batch wasn't copying data which could lead to data
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corruption (#409)
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* APPEND instruction applied to struct element was not copying it like neo-vm
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does (#405, part of #196 work)
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* EQUAL instruction was comparing array contents, while it should've compared
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references (#405, part of #196 work)
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* SUBSTR instruction was failing for out of bounds length parameters while it
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should've truncated them to string length (#406, part of #196 work)
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* SHL and SHR implementations had no limits, neo-vm restricts them to
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-256/+256 (#406, part of #196 work)
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* minor VM state mismatches with neo-vm on failures (#405, #406)
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* deadlock on Blockchain init when headers pointer is not in sync with the
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hashes list (#414)
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* node failed to request blocks when headers list was exactly one position
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ahead of block count (#414)
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* TestRPC/getassetstate_positive failed occasionally (#410)
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* panic on block verification with no transactions inside (#415)
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* DutyFlag check in GetScriptHashesForVerifying was not done correctly (#415)
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* default asset expiration for assets created with Register TX was wrong, now
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it matches C# code (#415)
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* Claim transactions needed specific GetScriptHashesForVerifying logic to
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be verified correctly (#415)
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* VerifyWitnesses wasn't properly sorting hashes and witnesses (#415)
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* transactions referring to two outputs of some other transaction were
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failing to verify (#415)
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* wrong program dumps (#295)
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* potential data race in logging code (#418)
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* bogus port check during handshake (#432)
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* missing max size checks in NEWARRAY, NEWSTRUCT, APPEND, PACK, SETITEM
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(#427, part of #373)
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## 0.50.0 "Consolidation" (19 Sep 2019)
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The first release from the new team focuses on bringing all related
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@ -3,14 +3,11 @@
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This defines approximate plan of neo-go releases and key features planned for
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them.
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## Version 0.51.0 (mid-October 2019)
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* VM compabitibility with neo-vm for all JSON-based tests in neo-vm
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* further refactoring the code
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* block verification
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* implementing missing protocol messages
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## Version 0.60.0 (mid-November 2019)
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* consensus node
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* finish work on VM compabitibility with neo-vm for all JSON-based tests in neo-vm
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* implementing missing protocol messages
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* improve wallet implementation
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## Version 1.0 (2020, aligned with NEO 3.0 release)
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* full NEO 3.0 support
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