CHANGELOG: release 0.73.0

Author: roman-khimov

CHANGELOG.md

@@ -2,6 +2,68 @@
 
 This document outlines major changes between releases.
 
+## 0.73.0 "Cotransduction" (19 Feb 2020)
+
+This is the first release than can successfully operate as a Testnet CN
+bringing with it fixed voting system implementation, policying support and
+other related fixes. It also contains RPC improvements and updates to the
+compiler.
+
+New features:
+ * Go smart contracts can now use variables for struct fields initialization
+   (#656)
+ * for range loops support in the compiler (#658)
+ * subslicing support for `[]byte` type (#654)
+ * block's storage changes dump support similar to NeoResearch's storage audit
+   (#649)
+ * `gettxout` RPC method support (#345)
+ * `getcontractstate` RPC method support (#342)
+ * `getstorage` RPC method support (#343)
+ * GetChangeAddress function in the wallet (#682)
+ * basic policying was implemented allowing to configure
+   MaxTransactionsPerBlock, MaxFreeTransactionsPerBlock,
+   MaxFreeTransactionSize and FeePerExtraByte (#682)
+
+Behaviour changes:
+ * consensus process now only start when server sees itself synchronized with
+   the rest of the network (see (*Server).IsInSync method, #682)
+ * default testnet and mainnet configurations now contain policer settings
+   identical to default SimplePolicy C# plugin (#682), privnet is not changed
+
+Improvements:
+ * keys.PublicKey now has Cmp method available (#661)
+ * core now exports UtilityTokenID and GoverningTokenID functions (#682)
+ * miner transactions generated by consensus process now properly set outputs
+   based on block's transactions fees (#682)
+ * (*Blockchain).`IsLowPriority` now takes fee (Fixed8) as an input (#682)
+ * mempool's GetVerifiedTransactions and TryGetValue now also return
+   transaction's fee
+ * DBFT logging was improved
+ * keys package no longer has Signature methods, they were replaced with more
+   useful GetScriptHash (#682)
+
+Bugs fixed:
+ * compiler produced wrong code if there was some data containing byte 0x62 in
+   the program (#630)
+ * answer to the `getblock` RPC method was not following the specification in
+   multiple places (#659)
+ * State transaction's descriptors were not encoded/decoded correctly (#661)
+ * keys.PublicKeys slice was not decoded properly (#661)
+ * 'Registered' descriptor of State transaction was not decoded correctly
+   (#661)
+ * voting processing and validators election was fixed to follow C#
+   implementation (#661, #512, #664, #682)
+ * deadlock in network subsystem on disconnect (#663)
+ * RPC answers with transactions were not following the specification in fields
+   names (#666)
+ * segmentation fault when checking references of bad transactions (#671)
+ * `getassetstate` and `getrawtransaction` RPC methods were not returning
+   error properly when missing asset or transaction (#675)
+ * consensus RecoveryMessage encoding/decoding wasn't correct (#679)
+ * DBFT was not reinitialized after successful chain update with the new block
+   received from other peers (#673)
+ * DBFT timer was extended too much, not following the C# implementation (#682)
+
 ## 0.72.2 "Confabulation" (11 Feb 2020)
 
 Bugfix and small refactoring release, though it's the first one to include