1.3.0

Here is the list of changes that were implemented since Iroha v1.2.1:

Features:

Subscription engine #813

Subscription engine singleton #849
SE features update #914:

• thread pool
• subscribers creator
• weak connectivity between Engine and Subscribers
• engine is disposable
• switch between sync and async single-thread tasks
  Additional schedulers to dispatcher
  Stack-created subscriber is not allowed
  Is busy fixup #1366
  Atomic busy check #1370
  Repeat implementation #1410

Fixed thread pool tasks balancer #1271

Metrics #943

• Add CMake files to .clang-format-ignore
• Disable prometheus-cpp logs
• Extend WSV to countDomains(), countTransactions(), countPeers()
• -fno-lto to link GCC-10 and clang with civetweb which was built with GCC-9
• Tests dependant on ametsuchi are linked against sync_subscription, not async
  Metrics Uptime #1471

Prometheus metrics sample #841
Documentation #1346

GitHub Actions #1028

A script to request tags of docker repository from DockerHub using curl and jq #1288
Improvements and fixes #1291, #1313, #1343, #1357, #1284, #1157, #1039
Fixed CI and automatic builds #1450, #1567, #1578, #1589
Better cathegories in CTest logs #1564

RocksDB #1084

Added rocksdb initialization and basic functionality #954
RocksDB implementation for WsvCommand and WsvQuery #976
RocksDB implementation of Indexer #983
RocksDB command executor #1013
Invalid precision test fix for RocksDB implementation #1089
Fix: Read precision in SubstractAssetQuantity #1091
Specific query executor #1049
Block Store #1304
RocksDB cache #1335
Print current DB status on exit #1410
Memory leaks fixes #1410

Tools for Migration to RocksDB

wsv_checker #1294
Migration-tool #1320
Adding the tools to Docker #1426
Tests for tools iroha_migrate, iroha_wsv_diff #1597

Proposal Creation Timeout #1011:

• Replace round delay with proposal creation timeout
• Send batches to current and next rounds
• Decouple Yac and OnDemandOrdering from rxcpp
• Asynchronous proposal request

Optional gRPC Parameters #1048

Additional Commands and Queries for Burrow #1326

Implemented by this year's Hyperledger intern @Ayush-Jalan with @baziorek as a mentor
Documentation on new commands #1334
Missing queries integration to Burrow #1443

Queries extension by modifing TxPaginationMeta #1092

Implemented by this year's Hyperledger intern @Pawlak00 with @baziorek as a mentor
Extending GetPendingTransactions #1300

Other Features

Async dispatcher implementation #962
Default log manager now reports config-file issues #951
Now CanAddPeer permission also allows the user to remove peers #1362

Fixes

reinterpret_pointer_cast fix for clang build #909
No --drop-state flag is needed for the first run anymore #900 (+ test fix #925)
Enabled reinterpret_pointer_cast for apple platform only to fix build #932
AmetsuchiTest: added condition for prepared block tests #952
reinterpret_pointer_cast moved to iroha namespace #1000
Iroha no longer freezes in GRPC when message of more than 4 MB are sent to it #1003
FlatFile: made the file close before rename #1012
Synchronization fix #1073
Postgres_options_test fix
Ordering Service batches cache + small block fixup #1327
Fixed integration tests #1347,
Fixed integration tests #1347, #1378
Query permission test fix #1380
Fixed add_peer_test #1408
RocksDBWsvQuery: fixed buffer reuse in getPeerByPublicKey #1505
Fixed MST expiration #1488, #1489, #1490, #1521, #1557
YAC logical fixes #1410
Ordering Service removing duplicated transactions #1410
Prevented Ordering Service server from creating blocks when there are not enough transactions in the pool #1581
Restoring WSV Fix #1528, #1472
GetTransactions request fix #1410
on_demand_os_client_grpc test freeze fix #1410

Infrastructure

Increase Windows CI disk size #918
Remove outdated usages of master branch #924
Fixed CI badge #1367
Added missing brew dep #1336
Added scripts/fix-dco.sh #1303

Refactoring

Refactored YAC #1110
Removed boost::adaptors::filter which could be dereferenced multiple times causing performance decrease #869
Remove rxcpp #1004
Internal storage refactoring #1410

Docs

Fixed Links #912
Additional Information About Configuration + Small Documentation Build Fixes #879
PR template change #1002
Added description of metrics flags #1006
Fixed Config example in Docs #1037, #1360
Block Path Config Description #1080
Updated documentation requirements #1359, #1159
Configuration Fix #1360
Removed Doxygen build #1377
Docs: Migration Tool and WSV Checker Use #1412
Fixed Build Instructions #1503
Fixed Starting Container Instructions for RocksDB Iroha #1600

Main team preparing the release: @kuvaldini, @iceseer, @LiraLemur

Results of the Performance Testing can be found here