{"schema":"postcutoff/event@1","as_of":"2026-10-17T02:25:00+02:00","url":"https://postcutoff.com/e/2026-10-09-postgresql-19-reverts-llm-assisted-review/","md":"https://postcutoff.com/e/2026-10-09-postgresql-19-reverts-llm-assisted-review/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-10-09-postgresql-19-reverts-llm-assisted-review","date":"2026-10-09","date_precision":"day","short_title":"LLM reviews push PostgreSQL 19 back","deck":null,"takeaway":null,"category":"open-source","category_label":"Open source","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Peter Eisentraut: The reverts will continue until morale improves (Oct 9, 2026)","url":"https://peter.eisentraut.org/blog/2026/10/09/the-reverts-will-continue-until-morale-improves","type":"official","group":"primary","domain":"peter.eisentraut.org"},{"n":2,"title":"The Register: Postgres 19 delayed after AI reviewers find more bugs than humans can fix (Oct 16)","url":"https://www.theregister.com/databases/2026/10/16/postgres-19-delayed-after-ai-reviewers-find-more-bugs-than-humans-can-fix/5303471","type":"press","group":"press","domain":"theregister.com"}],"official":1,"filed":"2026-10-16","updated":"2026-10-16","orgs":["PostgreSQL Global Development Group"],"title":"PostgreSQL 19 delayed and 8–10 major features pulled after LLM-assisted code review surfaces defects faster than they can be fixed","summary":"PostgreSQL committer Peter Eisentraut wrote on Oct 9, 2026 that about 8 to 10 significant features were reverted from PostgreSQL 19, some late in beta, because \"with LLM-assisted code review, these kinds of things can get found much faster\" than the project can fix them, while senior developers were busy with AI-found security fixes. The Register reported on Oct 16 that the release slipped from late September/early October to around November 19, with features such as SQL/PGQ property-graph queries moved to PostgreSQL 20.","key_facts":["Eisentraut (EDB): 'about 8 to 10 significant features, depending on how you count' were reverted, some 'quite late in the beta period'","One reverted feature had 'like forty defect reports'; Eisentraut calls them mostly 'relatively harmless issues involving various edge cases' but says each one has a fixed processing cost","He says the cause is not vibe coding (most of the code predates such tools) but weaker beta review while senior developers handled security fixes (his 'Vulnpocalypse'), and proposes LLM-assisted fuzzing during feature development","Kept in 19: REPACK CONCURRENTLY, logical replication of sequences, pg_plan_advice; 'PostgreSQL 19 will still be a great release'","The Register (Oct 16): GA moved from late Sept/early Oct to around Nov 19, 2026; SQL/PGQ (in the SQL standard since 2023) removed; quotes Tom Lane (Sept): shipping it in v19 would mean 'post-release bug discoveries that are unfixable until v20'","The review tools and models used were not named"],"key_numbers":[],"tags":["open-source","code-review","databases","ai-assisted-review","software-quality","vulnpocalypse"],"science":null,"body_md":"## What happened\n\nA major open-source database slipped its annual release because AI-assisted reviewers found more problems in new features than\nmaintainers could process before the deadline. The project chose to keep to its schedule by reverting the affected features rather than\ndelaying everything further.\n\n## Why it matters\n\nIt is a concrete case of AI review changing an open-source project's capacity limits. Finding bugs got cheap, but fixing and reviewing\nfixes did not. It fits the autumn-2026 pattern of maintainers overloaded by AI-found defects (record Patch Tuesday, curl and wolfSSL\nreports) and of projects such as QGIS restricting AI-generated contributions.","disputed":[],"related":[{"id":"2026-10-13-microsoft-october-patch-tuesday-record-1400-flaws","url":"https://postcutoff.com/e/2026-10-13-microsoft-october-patch-tuesday-record-1400-flaws/","date":"2026-10-13","date_precision":"day","short_title":"Microsoft's October Patch Tuesday fixes a record ~1,400 flaws, more than all of 2025, as AI-driven bug discovery floods vendors","deck":null,"takeaway":"Microsoft's October 13, 2026 Patch Tuesday fixed more than 1,400 vulnerabilities (1,411 per BleepingComputer, 1,413 per SecurityWeek), beating September's record of nearly 1,000.","category":"policy-safety","category_label":"Policy & safety","importance":3,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":4,"official":1,"filed":"2026-10-14","updated":"2026-10-14","orgs":["Microsoft"]},{"id":"2026-10-08-anthropic-cyber-mission-critical-infrastructure","url":"https://postcutoff.com/e/2026-10-08-anthropic-cyber-mission-critical-infrastructure/","date":"2026-10-08","date_precision":"day","short_title":"Anthropic Cyber Mission: critical-infrastructure program and free open-source scanning","deck":null,"takeaway":"Anthropic's strongest models now find and exploit vulnerabilities at a level that banks and governments treat as a systemic risk.","category":"policy-safety","category_label":"Policy & safety","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":8,"official":3,"filed":"2026-10-08","updated":"2026-10-16","orgs":["Anthropic","CrowdStrike","Palo Alto Networks","Dragos","Accenture","Deloitte"]},{"id":"2026-10-07-qgis-bans-ai-assisted-code-contributions","url":"https://postcutoff.com/e/2026-10-07-qgis-bans-ai-assisted-code-contributions/","date":"2026-10-07","date_precision":"day","short_title":"QGIS bans AI-assisted code contributions","deck":"\"No LLM, AI or agent assisted code contributions are allowed\"","takeaway":"The open-source geographic information system QGIS replaced its 'human in the loop' AI policy with an outright ban on AI-assisted code, with code reversion and loss of contributor rights as sanctions. Its lead proposer said the earlier policy had failed in practice.","category":"open-source","category_label":"Open source","importance":2,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":3,"official":1,"filed":"2026-10-12","updated":"2026-10-12","orgs":["QGIS"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-10-16","type":"filed","text":"Created (read Eisentraut's post)"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-10-16","run":null,"sources_read":"Read Eisentraut's post","updated":"2026-10-16","human_review":null,"version":{"date":"2026-10-16"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":162,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":101,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":192,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":131,"in_training_data":false}],"short_url":null}