PostgreSQL 18.6 Released
By BIOS Founding Team
The PostgreSQL Global Development Group released PostgreSQL 18.6 on August 13, 2026, alongside matching updates for the 17, 16, 15, and 14 branches.
This is a security and bug-fix release: it patches 28 security vulnerabilities and more than 110 other bugs. Notable fixes include correcting parallel GIN index builds that were leaving bogus reltuples values, repairing btree_gist issues with NaN handling and bit-column sorting, and fixing an integer overflow in ltree comparisons that could corrupt B-tree indexes.
It also fixes query planner bugs that could produce outright incorrect results in some cases, along with partition-pruning issues for DEFAULT partitions and performance fixes for hash joins and index operations, the kind of deep, correctness-critical work that keeps a database millions of companies run on trustworthy.
If you run PostgreSQL anywhere in production, this is worth upgrading to promptly given the security content.
Full release notes: https://www.postgresql.org/about/news/postgresql-186-1711-1615-1519-1424-and-19-beta-3-released-3365/
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