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325 lines
15 KiB
Markdown
325 lines
15 KiB
Markdown
# Changelog
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This document outlines major changes between releases.
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## 0.62.0 "Commotion" (07 Nov 2019)
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Release 0.62.0 finishes one very important work some pieces of which were
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gradually rolled out in previous releases --- it integrates all neo-vm project
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JSON-based tests for NEO 2.0 C# VM and runs them successfully against neo-go
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VM. There are also important bug fixes based on mainnet nodes deployment
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experience and additional configuration options.
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New Features:
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* implemented `Runtime.Serialize` and `Runtime.Deserialize` syscalls (#419)
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* new configuration option -- `AttemptConnPeers` to set the number of
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connections that the node will try to establish when it goes below the
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MinPeers setting (#478)
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* `LogPath` configuration parameter to write logs into some file and not to
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stdout (#460), not enabled by default
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* `Address` configuration parameter to specify the address to bind to (#460),
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not enabled by default
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Behavior changes:
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* mainnet configuration now has correct ports specified (#478)
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* multiple connections to the same peer are disallowed now (as they are in C#
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node (#478))
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* the default MaxPeers setting was increased to 100 for mainnet and testnet
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configurations and limited to 10 for privnet (#478)
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Improvements:
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* implemented missing VM constraints: stack item number limitation (#462) and
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integer size checks (#484, #373)
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* added a framework to run JSON-based neo-vm tests for C# VM and fixed all
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remaining incompabitibilities (#196)
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* added wallet unit tests (#475)
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* network.Peer's NetAddr method was split into RemoteAddr and PeerAddr (#478)
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* `MakeDirForFile` function was added to the `io` package (#470)
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Bugs fixed:
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* RPC service responded with block height to `getblockcount` request which
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differs from C# interpretation of `getblockcount` (#471)
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* `getbestblockhash` RPC method response was not adding leading `0x` prefix
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to the hash, while C# node does it
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* inability to correctly handshake clients on the server side (#458, #480)
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* data race in `Server` structure fields access (#478)
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* MaxPeers configuration setting was not working properly (#478)
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* useless DB reads (that failed in some cases) on persist attempt that didn't
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persist anything (#481)
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* current header height was not stored in the DB when starting a new
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blockchain which lead to node failures on restart (#481)
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* crash on node restart if no header hashes were written into the DB (#481)
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## 0.61.0 "Cuspidation" (01 Nov 2019)
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New features:
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* Prometheus support for monitoring (#441)
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* `neo-go contract invoke` now accepts endpoint parameter (`--endpoint` or
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`-e`) to specify RPC node to be used for invocation (#363)
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* RPC server now supports `invokescript` method (#348)
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* minimum peers number can now be configured (#468)
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* configured CORS workaround implemented in the RPC package (#469)
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Behavior changes:
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* `neo-go contract inspect` now expects avm files in input, but can also
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compile Go code with `-c` parameter (previously is was done by default),
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`inspect` subcommand was removed from `neo-go vm` (it dumped avm files in
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previous release) (#463)
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* the default minimum peers was reduced to 3 for privnet setups to avoid
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useless reconnections to only 4 available nodes
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* RPC service now has its own section in configuration, update your
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configurations (#469)
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Improvements:
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* VM.Load() now clears the state properly, making VM reusable after the Run()
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(#463)
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* Compile() in compiler package no longer accepts Options, they were not used
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previously anyway (#463)
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* invocation stack depth is now limited in the VM (#461)
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* VM got new State() method to get textual state description (#463)
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* vm's Stack structure can now be marshalled into JSON (#463)
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Bugs fixed:
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* race in discoverer part of the server (#445)
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* RPC server giving improper (not JSON) respons to unimplemented API requests
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(#463)
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## 0.60.0 "Cribration" (25 Oct 2019)
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Release 0.60.0 brings with it an implementation of all NEO 2.0 VM opcodes,
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full support for transaction relaying, improved logging, a bunch of fixes and
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an updated project logo.
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New features:
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* blocks dumping from DB to file and restoring from file to DB (#436)
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* new logo (#444)
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* implemented `getdata` message handling (#448)
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* issue tx processing (#450)
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* CALL_I, CALL_E, CALL_ET, CALL_ED, CALL_EDT implementation in the VM (#192)
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Internal improvements:
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* codestyle fixes (#439, #443)
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* removed spurious prints from all the code, now everything is passed/logged
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correctly (#247)
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Bugs fixed:
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* missing max size limitation in CAT and PUSHDATA4 opcodes implementation
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(#435)
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* wrong interpretation of missing unspent coin state when checking for double
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spend (#439)
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* panic on successive node starts when no headers were saved in the DB (#440)
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* NEWARRAY/NEWSTRUCT opcodes didn't copy operands for array<->struct
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conversions
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* deadlock in MemPool on addition (#448)
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* transactions were not removed from the MemPool when processing new signed
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block (#446)
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* wrong contract property constants leading to storage usage failures (#450)
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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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development effort into one codebase, refactoring things, fixing some
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long-standing bugs and adding new functionality. This release merges two
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radically different development branches --- `dev` and `master` that were
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present in the project (along with all associated pull requests) and also
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brings in changes made to the compiler in the neo-storm project.
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New features:
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* configurable storage backends supporting LevelDB, in-memory DB (for
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testing) and Redis
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* BoltDB support for storage backend
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* updated and extended interop APIs (thanks to neo-storm)
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Notable behavior changes:
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* the default configuration for privnet was changed to use ports 20331 and
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20332 so that it doesn't clash with the default dockerized neo-privnet
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setups
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* the default configuration path was changed from `../config` to `./config`,
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at this stage it makes life a bit easier for development, later this will
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be changed to some sane default for production version
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* VM CLI now supports type inference for `run` parameters (you don't need to
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specify types explicitly in most of the cases) and treats `operation`
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parameter as mandatory if anything is passed to `run`
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VM improvements:
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* added implementation for `EQUAL`, `NZ`, `PICK`, `TUCK`, `XDROP`, `INVERT`,
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`CAT`, `SUBSTR`, `LEFT`, `RIGHT`, `UNPACK`, `REVERSE`, `REMOVE`
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* expanded tests
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* better error messages for different erroneous code
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* implemented item conversions following neo-vm behavior: array to/from
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struct, bigint to/from boolean, anything to bytearray and anything to
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boolean
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* improved compatibility with neo-vm (#394)
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Technical improvements:
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* switched to Go 1.12+
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* gofmt, golint (#213)
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* fixed and improved CircleCI builds
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* removed internal rfc6969 package (#285)
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* refactored util/crypto/io packages, removed a lot of duplicating code
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* updated READMEs and user-level documents
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* update Makefile with useful targets
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* dropped internal base58 implementation (#355)
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* updated default seed lists for mainnet and testnet from neo-cli
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Bugs fixed:
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* a lot of compiler fixes from neo-storm
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* data access race in memory-backed storage backend (#313)
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* wrong comparison opcode emitted by compiler (#294)
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* decoding error in `publish` transactions (#179)
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* decoding error in `invocation` transactions (#173)
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* panic in `state` transaction decoding
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* double VM run from CLI (#96)
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* non-constant time crypto (#245)
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* APPEND pushed value on the stack and worked for bytearrays (#391)
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* reading overlapping hash blocks from the DB leading to blockchain state
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neo-go couldn't recover from (#393)
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* codegen for `append()` wasn't type-aware and emitted wrong code (#395)
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* node wasn't trying to reconnect to other node if connection failed (#390)
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* stricly follow handshare procedure (#396)
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* leaked connections if disconnect happened before handshake completed (#396)
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### Inherited unreleased changes
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Some changes were also done before transition to the new team, highlights are:
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* improved RPC testing
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* implemented `getaccountstate`, `validateaddress`, `getrawtransaction` and
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`sendrawtransaction` RPC methods in server
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* fixed `getaccountstate` RPC implementation
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* implemented graceful blockchain shutdown with proper DB closing
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## 0.45.14 (not really released, 05 Dec 2018)
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This one can technically be found in the git history and attributed to commit
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fa1da2cb917cf4dfccbe49d44c5741eec0e0bb65, but it has no tag in the repository
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and so can't count as a properly released thing. Still it can be marked as a
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point in history with the following changes relative to 0.44.10:
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* switched to Go modules for dependency management
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* various optimizations for basic structures like Uin160/Uint256/Fixed8
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* improved testing
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* added support for `invoke` method in RPC client
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* implemented `getassetstate` in RPC server
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* fixed NEP2Encrypt and added tests
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* added `NewPrivateKeyFromRawBytes` function to the `wallet` package
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## 0.44.10 (27 Sep 2018)
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This is the last one tagged in the repository, so it's considered as the last
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one properly released before 0.50+. Releases up to 0.44.10 seem to be made in
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automated fashion and you can find their [changes on
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GitHub](https://github.com/nspcc-dev/neo-go/releases).
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