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+# Changelog
+
+This document outlines major changes between releases.
+
+## 0.50.0 "Consolidation" (19 Sep 2019)
+
+The first release from the new team focuses on bringing all related
+development effort into one codebase, refactoring things, fixing some
+long-standing bugs and adding new functionality. This release merges two
+radically different development branches --- `dev` and `master` that were
+present in the project (along with all associated pull requests) and also
+brings in changes made to the compiler in the neo-storm project.
+
+New features:
+ * configurable storage backends supporting LevelDB, in-memory DB (for
+   testing) and Redis
+ * BoltDB support for storage backend
+ * updated and extended interop APIs (thanks to neo-storm)
+
+Notable behavior changes:
+ * the default configuration for privnet was changed to use ports 20331 and
+   20332 so that it doesn't clash with the default dockerized neo-privnet
+   setups
+ * the default configuration path was changed from `../config` to `./config`,
+   at this stage it makes life a bit easier for development, later this will
+   be changed to some sane default for production version
+ * VM CLI now supports type inference for `run` parameters (you don't need to
+   specify types explicitly in most of the cases) and treats `operation`
+   parameter as mandatory if anything is passed to `run`
+ 
+VM improvements:
+ * added implementation for `EQUAL`, `NZ`, `PICK`, `TUCK`, `XDROP`, `INVERT`,
+   `CAT`, `SUBSTR`, `LEFT`, `RIGHT`, `UNPACK`, `REVERSE`, `REMOVE`
+ * expanded tests
+ * better error messages for different erroneous code
+ * implemented item conversions following neo-vm behavior: array to/from
+   struct, bigint to/from boolean, anything to bytearray and anything to
+   boolean
+ * improved compatibility with neo-vm (#394)
+
+Technical improvements:
+ * switched to Go 1.12+
+ * gofmt, golint (#213)
+ * fixed and improved CircleCI builds
+ * removed internal rfc6969 package (#285)
+ * refactored util/crypto/io packages, removed a lot of duplicating code
+ * updated READMEs and user-level documents
+ * update Makefile with useful targets
+ * dropped internal base58 implementation (#355)
+ * updated default seed lists for mainnet and testnet from neo-cli
+
+Bugs fixed:
+ * a lot of compiler fixes from neo-storm
+ * data access race in memory-backed storage backend (#313)
+ * wrong comparison opcode emitted by compiler (#294)
+ * decoding error in `publish` transactions (#179)
+ * decoding error in `invocation` transactions (#173)
+ * panic in `state` transaction decoding
+ * double VM run from CLI (#96)
+ * non-constant time crypto (#245)
+ * APPEND pushed value on the stack and worked for bytearrays (#391)
+ * reading overlapping hash blocks from the DB leading to blockchain state
+   neo-go couldn't recover from (#393)
+ * codegen for `append()` wasn't type-aware and emitted wrong code (#395)
+ * node wasn't trying to reconnect to other node if connection failed (#390)
+ * stricly follow handshare procedure (#396)
+ * leaked connections if disconnect happened before handshake completed (#396)
+
+### Inherited unreleased changes
+
+Some changes were also done before transition to the new team, highlights are:
+ * improved RPC testing
+ * implemented `getaccountstate`, `validateaddress`, `getrawtransaction` and
+   `sendrawtransaction` RPC methods in server
+ * fixed `getaccountstate` RPC implementation
+ * implemented graceful blockchain shutdown with proper DB closing
+
+## 0.45.14 (not really released, 05 Dec 2018)
+
+This one can technically be found in the git history and attributed to commit
+fa1da2cb917cf4dfccbe49d44c5741eec0e0bb65, but it has no tag in the repository
+and so can't count as a properly released thing. Still it can be marked as a
+point in history with the following changes relative to 0.44.10:
+ * switched to Go modules for dependency management
+ * various optimizations for basic structures like Uin160/Uint256/Fixed8
+ * improved testing
+ * added support for `invoke` method in RPC client
+ * implemented `getassetstate` in RPC server
+ * fixed NEP2Encrypt and added tests
+ * added `NewPrivateKeyFromRawBytes` function to the `wallet` package
+
+## 0.44.10 (27 Sep 2018)
+
+This is the last one tagged in the repository, so it's considered as the last
+one properly released before 0.50+. Releases up to 0.44.10 seem to be made in
+automated fashion and you can find their [changes on
+GitHub](https://github.com/nspcc-dev/neo-go/releases).