Issues

• deps: upgrade Apache Thrift on release-8.5

  affects-8.5type/bug
  pingcap/ticdc#6781 · Filter by author asddongmen opened on Nov 2, 2026

• UPDATE filtering differs across TiCDC arch

  affects-8.5affects-26.9may-affects-25.10may-affects-26.3severity/majortype/bug
  pingcap/ticdc#6777 · Filter by author wk989898 opened on Nov 2, 2026

• deps: upgrade gRPC and OpenTelemetry on master and release-8.5

  affects-8.5type/enhancement
  pingcap/ticdc#6775 · Filter by author ekexium opened on Nov 2, 2026
  3

• inconsistent ignore-sql behavior across TiCDC architectures

  affects-8.5affects-26.9severity/criticaltype/bug
  pingcap/ticdc#6774 · Filter by author wk989898 opened on Nov 2, 2026

• test: flaky changefeed_update_config integration test

  component/testtype/bug
  pingcap/ticdc#6735 · Filter by author 3AceShowHand opened on Oct 29, 2026
  

• cmd/kafka-consumer: simple-protocol consumer cannot keep up — watermark hours behind, ~138GB spill, DDL blocked past the 5h check

  pingcap/ticdc#6713 · Filter by author Lily2025 opened on Oct 26, 2026

• kafka sink: changefeed lag stays at 100–500s for ~4h after a 1-min S3 network partition (backlog is not drained)

  severity/major
  pingcap/ticdc#6708 · Filter by author Lily2025 opened on Oct 26, 2026
  1

  

• Support Lake as a native TiCDC sink

  type/feature-request
  Feature

  pingcap/ticdc#6704 · Filter by author sdojjy opened on Oct 26, 2026

• cloudstorage: split-span startTs differences can discard new DML

  affects-8.5affects-26.9severity/moderatetype/bug
  pingcap/ticdc#6658 · Filter by author wk989898 opened on Oct 21, 2026

• mysql: missing secondary unique-key dependencies can lose data

  affects-8.5affects-26.9mysqlseverity/criticaltype/bug
  pingcap/ticdc#6656 · Filter by author wk989898 opened on Oct 21, 2026

• TiCDC 6622944 cannot replicate MView due to incompatible DDL ActionType values

  type/bug
  pingcap/ticdc#6649 · Filter by author jebter opened on Oct 21, 2026
  1

• config: internal TiDB source ID is lost during configuration conversion

  affects-8.5affects-26.9contributionfirst-time-contributorseverity/minortype/bug
  pingcap/ticdc#6596 · Filter by author tao1020 opened on Oct 19, 2026
  1

• Support replicating the TiDB AFFINITY table option and ALTER TABLE ... AFFINITY

  pingcap/ticdc#6565 · Filter by author JmPotato opened on Oct 16, 2026

• Allow changefeed creation during import/restore on filtered-out tables

  affects-8.5affects-26.9type/enhancement
  pingcap/ticdc#6552 · Filter by author wk989898 opened on Oct 15, 2026

• decoupled Kafka message size limit to release-8.5

  affects-8.5type/enhancement
  pingcap/ticdc#6513 · Filter by author 3AceShowHand opened on Oct 12, 2026
  

• Support SPIFFE Workload API mTLS for MySQL and TiDB sinks

  contributionfirst-time-contributortype/enhancement
  pingcap/ticdc#6469 · Filter by author nanassito opened on Oct 8, 2026
  2

• Changefeeds with tens of thousands of tables can stop making progress

  severity/moderatesubject/replication-interruptiontype/bug
  pingcap/ticdc#6453 · Filter by author 3AceShowHand opened on Oct 8, 2026
  2

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

  severity/moderatetype/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
  

• 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

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

  affects-26.9severity/criticaltype/bug
  pingcap/ticdc#6312 · Filter by author pingyu opened on Sep 20, 2026
  4

  

• 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