v1.27.4

Warning: this update changes hived state format and requires hived node replay, if you are using version 1.27.3 or earlier.

1. General notes: upgrade to Ubuntu 22.04 as base supported OS: https://gitlab.syncad.com/hive/hive/-/merge_requests/838
2. New features:
   • new virtual operations emitted: https://gitlab.syncad.com/hive/hive/-/merge_requests/332
   • prepare code for new Hardfork 28
   • prerequisites for strict matching of Hived data structures to the shared_memory.bin and snapshot contents: https://gitlab.syncad.com/hive/hive/-/merge_requests/784
3. Hived bugfixes:
   • fixed shutdown problems:
     • while executing broadcast_transaction_synchronuous: https://gitlab.syncad.com/hive/hive/-/merge_requests/812
     • when --exit-before-sync was used: https://gitlab.syncad.com/hive/hive/-/merge_requests/833
   • plugin/index state is more strict verified (Issue #423): https://gitlab.syncad.com/hive/hive/-/merge_requests/772
   • fixed cli_wallet shutdown problems leading to random failure: https://gitlab.syncad.com/hive/hive/-/merge_requests/726
   • elimination of custom fc::uint128 implementation (standard builtin GCC type is used): https://gitlab.syncad.com/hive/hive/-/merge_requests/804
   • silent truncation of fixed_string is eliminated (what could lead to silent modification of broken operations in transaction - now they will explicitly fail): https://gitlab.syncad.com/hive/hive/-/merge_requests/794
   • Fixed transaction counter in AH RockDB plugin (to improve reporting): https://gitlab.syncad.com/hive/hive/-/merge_requests/850
   • Fixed impacted account collection (leads to AH collection) for comment_payout_beneficiaries: https://gitlab.syncad.com/hive/hive/-/merge_requests/844
   • Account History API better handles history data coming from reversible blocks: https://gitlab.syncad.com/hive/hive/-/merge_requests/866
   • RC mana can't go under zero anymore: https://gitlab.syncad.com/hive/hive/-/merge_requests/863
4. Python regression test improvements:
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/811
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/683
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/813
   • database_api suite extended: https://gitlab.syncad.com/hive/hive/-/merge_requests/516
   • dedicated performance test suite for recurrent transfers to show corner cases: https://gitlab.syncad.com/hive/hive/-/merge_requests/823
   • enhanced suite related to condenser_api, transaction_status_api https://gitlab.syncad.com/hive/hive/-/merge_requests/816, https://gitlab.syncad.com/hive/hive/-/merge_requests/795
   • created tests specific to decline_voting_rights and proxy operations: https://gitlab.syncad.com/hive/hive/-/merge_requests/851, https://gitlab.syncad.com/hive/hive/-/merge_requests/815
   • new tests for market_history_api: https://gitlab.syncad.com/hive/hive/-/merge_requests/826
   • enhanced tests specific to recurrent transfers: https://gitlab.syncad.com/hive/hive/-/merge_requests/807
5. Low level unit tests extended by suite of tests covering AH calls (prerequisites to internal code cleanup/refactoring, which will need good test base):
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/810
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/825
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/862
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/867
   • https://gitlab.syncad.com/hive/hive/-/merge_requests/874
6. Devops/workflow automation:
   • dockerized setup fixes/simplifications (mostly solved permission issues):
     • https://gitlab.syncad.com/hive/hive/-/merge_requests/865
     • https://gitlab.syncad.com/hive/hive/-/merge_requests/869
   • Simplify replay of test node and use GitLab cache to lower resource usage during testing: https://gitlab.syncad.com/hive/hive/-/merge_requests/801
   • Official Hive images can be published by automatic job: https://gitlab.syncad.com/hive/hive/-/merge_requests/868