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CHANGELOG: add one, declare 0.50.0 released
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Roman Khimov
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CHANGELOG.md
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# Changelog
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This document outlines major changes between releases.
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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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