Issues

• Found data race in dispatchermanager

  may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majortype/bug
  pingcap/ticdc#6421 · Filter by author wk989898 opened on Oct 2, 2026

• TiCDC new arch: table with NOT NULL UNIQUE KEY (no PK) is never split for MySQL sink

  contributiontype/bug
  pingcap/ticdc#6418 · Filter by author choudharypankaj opened on Oct 1, 2026

• eventservice: scan retry can lose spilled inserts from large UK updates

  type/bug
  pingcap/ticdc#6415 · Filter by author asddongmen opened on Sep 30, 2026

• The changefeed checkpoint lag fluctuates by slightly over one second

  contributionfirst-time-contributortype/bug
  pingcap/ticdc#6397 · Filter by author july2993 opened on Sep 28, 2026
  1

• eventstore: share local normal and redo subscriptions

  type/enhancement
  pingcap/ticdc#6356 · Filter by author wlwilliamx opened on Sep 23, 2026
  

• DMLEvent serialization drops row checksum metadata

  affects-8.5affects-26.9severity/majortype/bug
  pingcap/ticdc#6342 · Filter by author wk989898 opened on Sep 22, 2026
  1

  

• row checksum is incorrect when enable avro-include-before-value

  severity/moderatetype/bug
  pingcap/ticdc#6339 · Filter by author wk989898 opened on Sep 22, 2026
  1

• eventcollector: clean up unused dispatcher timezone code

  affects-8.5type/enhancement
  pingcap/ticdc#6335 · Filter by author lidezhu opened on Sep 22, 2026

• eventservice: integrity behavior depends on the first registered changefeed

  affects-8.5affects-26.9severity/moderatetype/bug
  pingcap/ticdc#6334 · Filter by author lidezhu opened on Sep 22, 2026
  

• SchemaStore shutdown may exceed the graceful timeout during snapshot initialization

  affects-8.5severity/moderate
  pingcap/ticdc#6333 · Filter by author lidezhu opened on Sep 22, 2026

• kafka consumer: improve downstream write throughput

  component/testtype/enhancement
  pingcap/ticdc#6315 · Filter by author 3AceShowHand opened on Sep 20, 2026
  

• TiCDC panics on duplicate update and insert rows in unsafe batch SQL

  affects-8.5affects-26.9severity/criticaltype/bug
  pingcap/ticdc#6312 · Filter by author pingyu opened on Sep 20, 2026
  2

• allow changefeed operation with the same upstream cluster

  type/enhancement
  pingcap/ticdc#6285 · Filter by author 3AceShowHand opened on Sep 18, 2026
  

• Support creating changefeeds in a paused state

  type/feature-request
  pingcap/ticdc#6266 · Filter by author sdojjy opened on Sep 15, 2026

• redo apply oom

  type/enhancement
  pingcap/ticdc#6252 · Filter by author wk989898 opened on Sep 14, 2026

• rebalance dispatchers by traffic when table splitting is disabled

  type/enhancement
  pingcap/ticdc#6251 · Filter by author wk989898 opened on Sep 14, 2026
  

• canal-json: output the transaction start_ts in the _tidb extension block

  type/feature-request
  pingcap/ticdc#6242 · Filter by author choudharypankaj opened on Sep 12, 2026
  1

• tests: Kafka split-table move case exhausts downstream DDL disk

  type/bug
  pingcap/ticdc#6232 · Filter by author asddongmen opened on Sep 12, 2026
  

• Support changefeed traffic metering and reporting

  type/feature-request
  pingcap/ticdc#6204 · Filter by author 3AceShowHand opened on Sep 9, 2026

• restored in-flight creates a duplicate dispatcher in maintainer_failover_when_operator

  affects-8.5affects-26.9severity/criticaltype/bug
  pingcap/ticdc#6202 · Filter by author wk989898 opened on Sep 9, 2026
  1

• schemastore: lazy keyspace initialization can block graceful shutdown

  severity/moderatetype/bug
  pingcap/ticdc#6199 · Filter by author asddongmen opened on Sep 8, 2026

• release-nextgen-202603: HA (PD leader partition) still reproducibly freezes changefeed checkpoint after capture replacement

  may-affects-8.5may-affects-25.10may-affects-26.3severity/majortype/bug
  pingcap/ticdc#6193 · Filter by author Lily2025 opened on Sep 7, 2026
  3

  

• compliance: add root third-party notices for Go dependencies

  type/enhancement
  pingcap/ticdc#6164 · Filter by author dillon-zheng opened on Sep 4, 2026
  1

• Upgrade TiCDC build toolchain from Go 1.25

  contributionfirst-time-contributor
  pingcap/ticdc#6163 · Filter by author mzhang77 opened on Sep 3, 2026
  1

• Changefeed stop replicating after TiCDC server scale in

  type/bug
  pingcap/ticdc#6160 · Filter by author pingyu opened on Sep 3, 2026