Release
Jeremy Schneider: Postgres 18.7 minor breaks ABI compatibility again
The Brief
- PostgreSQL 18.7, a minor release, reportedly breaks ABI compatibility.
- Jeremy Schneider's Planet PostgreSQL post dated 2026-11-12 says this happened again.
- The post frames Postgres API and ABI stability as a long-running topic of discussion.
Why it matters
An ABI break in a minor release can stop compiled extensions and binaries built against earlier 18.x versions from loading or running correctly.
Who’s affected
- Teams running PostgreSQL 18
- Developers maintaining PostgreSQL extensions
- PostgreSQL 18.7
- #postgresql
- #abi
- #release
- #database
- #compatibility
Postgres API and ABI stability has been a topic of discussion for a long time. To understand why this matters so much, start with Dave Stokes recent blog post [ Is PostgreSQL Really Winning Part 2: The Evidence Beyond the Rankings ]. It’s fundamentally about “a slow core with a…