Release v0.19.0

[teknogeek0]

Release v0.19.0

Cuts a new minor release with all fixes and features merged to main since v0.18.0 (PRs #27–#37). Adds the v0.19 section to CHANGELOG.md; no code changes.

This is a minor bump (not a patch) because it adds a new CLI flag (--defer-validate-fks) and changes default FK-creation behavior.

Highlights

Foreign-key constraint handling (theme of the release)

• --defer-validate-fks — create target FKs as NOT VALID to skip the historical-row validation scan and let the COPY → CDC handoff happen immediately (Add --defer-validate-fks to create FK constraints as NOT VALID #37)
• FK constraints now created directly by pgcopydb with automatic NOT VALID retry on pre-existing data violations (SQLSTATE 23503), instead of failing the migration (Handle FK constraints directly with automatic NOT VALID retry #27)
• Table/schema filters now applied when fetching FK constraints (Apply table/schema filters when fetching FK constraints #30)

CDC / follow robustness

• Retry-with-backoff reconnect on --follow target connection loss (Add retry with backoff to follow pipeline on target connection failure #35)
• Correct WHERE clauses for json columns with REPLICA IDENTITY FULL (Handle REPLICA IDENTITY FULL for json columns #28)

Data integrity / resume

• Fix split-table TRUNCATE on resume that could wipe already-copied data (Fix split-table TRUNCATE on resume (data-loss path) #33)
• Honor large-objects-done on resume; document --drop-if-exists resume assumption (Resume audit follow-ups: blobs flag + drop-if-exists comment #34)

Security / CI

• Pin GitHub Actions to full-length commit SHAs + Dependabot (security: pin GitHub Actions to full-length commit SHAs #32)
• Publish Docker image only on release tags (Add retry with backoff to follow pipeline on target connection failure #35)
• apt retries in the pagila test image (tests: add apt retries to pagila Dockerfile #36)

After merge

Tag from main to trigger the multi-arch Docker publish:

git tag -s v0.19.0 -m "Release v0.19.0"
git push origin v0.19.0

Test plan

• Docs-only change; branch is otherwise identical to main (already CI-green from the individual PR merges)
• PR CI matrix (PG16, style, docs build)