What's Changed

Added

• Introduce payload size metrics by @tubignat in #6745
• Implement bytes-based LRU cache using Sizeable interface by @timl3136 in #6722
• Introduce DynamicTaskBatchSizer by @arzonus in #6754
• Add a migration guide of task list partition config by @Shaddoll in #6765
• Scaffold ByteSize() measuring size estimation for history event cache by @timl3136 in #6693
• Add task category tag to history tasks metrics by @Shaddoll in #6769
• Introduce Cadence MCP server with an initial basic tool by @taylanisikdemir in #6766
• [domain-deletion]Allow to list workflows for deprecated domains by @gazi-yestemirova in #6752
• Adds some metrics / logs for an edge case in workflow cleanup by @davidporter-id-au in #6753
• Support client-side specification of consistency for DescribeWorkflowExecution and GetWorkflowExecutionHistory by @c-warren in #6789
• Automatically rebalance isolation groups between TaskList partitions by @natemort in #6764
• Grafana for cadence client by @vishwa-uber in #6783
• [domain-deletion]Add workflow to deprecate domains by @gazi-yestemirova in #6787
• Implement metrics collecting into the base LRU cache by @timl3136 in #6794
• Add SQLite Persistence tests by @arzonus in #6795
• [domain-deprecation]Add an activity to deprecate a domain by @gazi-yestemirova in #6802
• [server] Add automaxpocs library by @3vilhamster in #6814
• Add size-based cache config flags for history event and execution cache by @timl3136 in #6817
• Add db payload decoding support to MCP server by @taylanisikdemir in #6808
• Document timer task page tokens' risky serialization needs by @Groxx in #6821
• Active-active domain support - Part 1/N by @taylanisikdemir in #6799
• Add hot-swap capability between count-based and size-based cache modes by @timl3136 in #6809
• Add a dynamic property to disable failover queues by @Shaddoll in #6836
• Add more logs to improve visibility around shard/engine/queue component lifecycles by @taylanisikdemir in #6838
• Active-active domain support - Part 2/N by @taylanisikdemir in #6840
• Add more logs for shard item and resolver components by @taylanisikdemir in #6858
• Domain Deprecation: Implement workflow listing and termination activities by @gazi-yestemirova in #6819
• Create MAINTAINERS.md by @demirkayaender in #6866

Changed

• Persistance operations grafana dashboard improvements by @vishwa-uber in #6744
• Unify history task query - part 2: Replace GetTimerIndexTasks with GetHistoryTasks by @Shaddoll in #6737
• Refactor: Move constants.go to dedicated constants package by @timl3136 in #6713
• Set MatchingEnableStandbyTaskCompletion default value to true by @fimanishi in #6751
• Set EnableAsyncWorkflowConsumption default value to true by @fimanishi in #6750
• Refactor Size() method to ByteSize() avoiding naming collision by @timl3136 in #6755
• Unify history task query - part 3: Replace GetTransferTasks with GetHistoryTasks by @Shaddoll in #6746
• Unify history task query - part 4 - replace task.Info with persistence.Task in history queue by @Shaddoll in #6757
• Use equality comparison for CloseStatus in pinot query instead of range by @neil-xie in #6758
• Unify history task query - part 5 - replication task queries by @Shaddoll in #6761
• Upgrade postgres version in docker compose files from 12.4 to 17.4 by @ahumblefool in #6762
• Unify complete history tasks methods by @Shaddoll in #6763
• Extract stopping ratelimiters code to fn by @dkrotx in #6748
• fix weighted load balancer by @Shaddoll in #6770
• (docs): Update Cross Region README commands to new version syntax by @c-warren in #6772
• use histogram for replication_task_delay by @shijiesheng in #6773
• Change dlq default end message id by @Shaddoll in #6775
• Simplify Isolation Group Determination by @natemort in #6768
• Wrap matching peer provider by @jakobht in #6715
• Refactor task executors to use concrete persistence.Task types for task execution by @Shaddoll in #6760
• [common/log] Unify logger package by @3vilhamster in #6779
• Refactor poller tracking from tasklist to poller package by @natemort in #6777
• Update changelog for v1.2.18 release by @neil-xie in #6785
• [common][dynamicconfig] Revamp dynamicconfig package to provide a cleanier boundaries of functionality by @3vilhamster in #6788
• Adjust task isolation metrics by @natemort in #6784
• [server] Start the server as a Fx application by @3vilhamster in #6793
• Enable Integration tests for SQLIte by @arzonus in #6796
• Reenables child workflows to be launched across local domains by @davidporter-id-au in #6804
• Allow execution of the delete history event task for deprecated domains by @gazi-yestemirova in #6803
• [server] Update mcp library by @3vilhamster in #6816
• Log duplicated activity events by @fimanishi in #6813
• Expose DebugOn to prevent expensive computations needed only to enrich debug logs by @taylanisikdemir in #6818
• Reuse TaskList Partition Weighting in IsolationLoadBalancer by @natemort in #6811
• Simplify debug level check by @taylanisikdemir in #6820
• Initialize NumHistoryShards in sql test utils by @taylanisikdemir in #6822
• Make cover_profile run parallel by @arzonus in #6801
• [ci][buidlkite] Try leveraging go modules to cache dependencies across runs by @3vilhamster in #6830
• Update matching query workflow to refresh task list partition config cache by @Shaddoll in #6790
• Change the default value of Task Isolation configs by @natemort in #6833
• Track Isolation Group state even when there's only one partition by @natemort in #6835
• Improve logs to detect double activity events by @fimanishi in #6839
• [common][dynamicconfig] Move dynamic config to fx Module by @3vilhamster in #6828
• Pass logger to redirect policy directly instead of using frontend's config struct by @taylanisikdemir in #6843
• [dependency] Update go.uber.org/fx to v1.23.0 by @3vilhamster in #6845
• Update active-active doc with limitations by @taylanisikdemir in #6846
• Optimize DynamicRateLimiter to not constantly re-evaluate RPS by @natemort in #6842
• Update shard controller getters to use atomic by @Shaddoll in #6864

Fixed

• fix version conflict after renaming Size() to ByteSize() by @timl3136 in #6756
• Set missed dynamicconfig default updates by @fimanishi in #6782
• Fixing broken master after a merge problem by @davidporter-id-au in #6786
• Bugfix/fixing history deletion on reset (2/2) by @davidporter-id-au in #6742
• Fix flaky test by @natemort in #6792
• Eagerly leak tasks that don't match the partition config by @natemort in #6781
• [resolver] Fix default value by @3vilhamster in #6797
• [cadence][server] Fix server start missing lifecycle by @3vilhamster in #6806
• Fix exp value for GroupQPS values by @natemort in #6810
• [cli][jwt] Fix TestCreateJWT flackiness by @3vilhamster in #6829
• [common][domainCache] Fix flaky test Test_IsActiveIn by @3vilhamster in #6831
• Fix dynamicConfig naming inconsistency for ExecutionCacheMaxByteSize by @timl3136 in #6832
• Fix warnings in replication simulation by @fimanishi in #6848
• Fix Flaky Integration Test in TestDomainReplicationDLQ by @timl3136 in #6851
• Bugfix/lowering log volume by @davidporter-id-au in #6847
• Improve history queue Stop lifecycle logs by @Shaddoll in #6852
• Fix race condition in Query Dispatch by @natemort in #6849
• Fix flaky redispatcher unit test by @Shaddoll in #6854
• Fix flaky integration test in TestDomainReplicationQueue by @timl3136 in #6855
• Address test races caused by deferred logs by @taylanisikdemir in #6841
• Async workflow API not enabled should be user-error by @sankari165 in #6857

Removed

• Remove obsolete docker-compose version by @dkrotx in #6736
• removed docker-compose version label for buildkite by @dkrotx in #6747
• Delete persistence types that are not used by @Shaddoll in #6776
• Remove dependencies in unit tests by @arzonus in #6800
• Remove Task Isolation from Forwarder by @natemort in #6834

New Contributors

• @ahumblefool made their first contribution in #6762
• @c-warren made their first contribution in #6772

Full Changelog: v1.2.18...v1.3.0