CHANGELOG: release 0.74.0
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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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This document outlines major changes between releases.
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## 0.74.0 "Comprehension" (17 Mar 2020)
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Functionally complete NEO 2.0 node implementation, this release can be used as
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a drop-in replacement for C# node in any setting. It features full RPC
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functionality support and full set of wallet operations. As usual, there
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also was a number of bugs fixed, the node stability improved and some great
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optimizations were also done (especially concentrated around DB interactions),
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so even though this release has more functionality than ever (and it stores a
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lot more chain data than ever) it at the same time imports blocks faster than
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the previous one.
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Of course we will make additional maintenance releases for NEO 2.0 when
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needed, but following this release we'll concentrate more on NEO 3.0 features
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and catching up with recent community developments around that.
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New features:
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* WIF and NEP2 keys import/export into/from the wallet (#685)
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* multisig accounts import into the wallet (#685)
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* additional key generation for existing wallets (#685)
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* support for `break` and `continue` statements in the compiler (#678)
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* `getblocksysfee` RPC method support (#341)
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* `getapplicationlog` RPC method support (#500, #754)
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* `getclaimable` RPC method support (#694)
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* gas claiming support in wallet CLI (#694)
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* asset transfer commands in wallet CLI (#694, #706)
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* `getrawmempool` RPC method support (#175)
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* RPC client support for all methods implemented in neo-go's server (#586,
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#715, #694, #723, #750)
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* `getblockheader` RPC method support (#722)
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* `getnep5balances` and `getnep5transfers` RPC methods support (#498, #751)
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* `gettransactionheight` RPC method support (#713)
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* `submitblock` RPC method support (#344)
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* `getvalidators` RPC method support (#714)
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* support for `switch` `fallthrough` statements in the compiler (#628)
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* a set of `NEP5*` methods added to RPC client for convenient NEP5 contract
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calls (#728, #764)
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* NEP tokens balance querying and transfers support for CLI (#728, #757)
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* `getunclaimed` RPC method support (#712)
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* contract import was added to the wallet CLI command set (#757)
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* key removal added to the wallet CLI command set (#757)
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* https support for RPC server (#702)
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Behaviour changes:
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* gas parameter for deployment no longer specifies full gas to be added into
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the transaction, it now only specifies the network fee part while system
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fee part is computed automatically based on contract's metadata (#747)
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* contract deployment and invocation from CLI is now integrated with the
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wallet subsystem, WIF parameter support was dropped (#747)
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* wallet subcommands were renamed, `create` became `init` and
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`create-account` became simple `create` (#757)
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* DB format was changed several times during this release cycle, so please
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resynchronize your chains
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Improvements:
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* improved and extended `wallet` package (#685, #694, #706, #728, #757)
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* refactored RPC package (dividing it into smaller subpackages, #510, #689)
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* `GroupInputsByPrevHash` is no longer tied to `Transaction`, allowing its
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wider use (#696)
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* more efficient `transaction.InOut` type is used for `References` (#696,
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#733)
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* RPC client's `SendToAddress` was renamed to `TransferAsset` to better
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reflect its purpose (#686)
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* P2P server's graceful shutdown with connection closing (#691)
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* broadcasted transaction batching was added improving network efficiency
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(#681)
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* dropped duplicating `rpc.StackParamType` in favor of improved
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`smartcontract.ParamType` (#690, #706)
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* trigger types moved to their own `trigger` package (#690)
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* all Go packages were moved from github.com/CityOfZion to
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github.com/nspcc-dev where they technically already reside since August
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2019 (#710)
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* NEP5 balances and transfers tracking was added to Blockchain (#723, #748)
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* optimized transaction inputs/outputs/results verification (#743)
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* `SpentCoin` and `UnspentCoin` structures were merged and moved into `state`
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package (#743)
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* `AddVerificationHash` method was added to `Transaction` to simplify
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attributes management (#752)
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Bugs fixed:
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* `getpeers` RPC request was not returning unconnected and bad peers (#676)
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* RPC client was not reporting real error from the answer in case of HTTP
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error (#676)
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* potential race in `Seek` implementation for `MemoryStore` (#693)
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* improper handling of more than 64K branching points in the compiler (#687)
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* Enrollment transactions verification didn't check for validator key (#696)
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* Claim transaction witness check might miss some hashes from Inputs (#696)
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* double Claim verification was missing (#696)
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* network fee calculation was completely broken (#696)
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* mempool's `Remove` might drop wrong transaction (#697)
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* missing double claim verification for mempool transactions (#697)
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* server deadlock upon reaching connection limit (#691)
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* wrong logic short-circuiting by compiler in complex conditions (#699, #701)
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* `AddHeaders` method was not verifying headers in any way (#703)
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* missing Claim amount verification (#694)
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* bogus error returned from `GetValidators` when processing transfers to
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(yet) unexisting accounts (#694)
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* Claim and Miner transactions network fee was wrong (#694)
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* negative outputs were allowed in transactions, but shouldn't (#694)
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* smart contract invocation CLI command failed to process some parameters
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correctly (#719)
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* fatal error on concurrent access to `Blockchain` internal variable (#720)
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* Invocation transactions missed some decoding checks (#718)
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* it was allowed to have fractional GAS in Invocation transactions (which is
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interpreted as system fee), but it shouldn't (#718)
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* system fee calculation for Invocation transactions was incorrect (#718)
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* `Transaction` JSON unmarshalling was processing Outputs and Witnesses
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incorrectly (#706)
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* panic on server shutdown in case it's not fully started yet (#721)
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* `sendrawtransaction` RPC method implementation was not following error
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codes convention (#724)
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* interop implementations were using wrong byte order for returned hashes
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leading to storage state differences at mainnet's block 2025204 (#727)
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* `getblock` verbose response format was not following official documentation
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(#734)
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* contract deployment could fail with no error returned (#736)
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* max contract description limit was wrong, leading to deployment failures
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(#735)
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* compiler didn't properly clean up stack on `return` or `break` in some
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situations (#731)
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* deadlock in discovery service (#741)
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* missing dynamic `APPCALL` support (#740)
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* `EQUAL` opcode implementation was not comparing different stack item types
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correctly (#745, #749)
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* RPC error on contract invocation when Hash160 is being passed into it
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(#758)
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* absent any ping timeouts configuration the node was constantly pinging its
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neighbours (#680)
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* contract's state migration was not done properly (#760)
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* db import with state dump was not saving dumps correctly on interruption
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and was now resuming writes to dump files correctly after restart (#761)
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* incomplete State transaction verification (#767)
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* missing Owner signature check for Register transaction (#766)
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* incomplete Issue transaction verification and mempool conflicts check
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(#765)
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## 0.73.0 "Cotransduction" (19 Feb 2020)
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## 0.73.0 "Cotransduction" (19 Feb 2020)
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This is the first release than can successfully operate as a Testnet CN
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This is the first release than can successfully operate as a Testnet CN
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