Contents

• Changelog
  • 0.4.4 – 2026-10-06
  • 0.4.3
  • 0.4.2
  • 0.4.1 and earlier

Changelog

Versions are released on PGXN. Each upgrade script (pg_grammar_guard--OLD--NEW.sql) documents, in its own header, exactly what changed and why; that is the authoritative per-version record.

0.4.4 – 2026-10-06

• License: Apache License 2.0, replacing the PostgreSQL License, from this release on. Every version up to and including 0.4.3, already published, stays under the PostgreSQL License it was released with. No code changed.

0.4.3

Completes the copyright and licensing files: the copyright holder’s full legal name in LICENSE and README, and a per-file SPDX header on every SQL source file. No schema change.

0.4.2

No schema change. Adds project governance and legal files (NOTICE, AUTHORS, SECURITY, CONTRIBUTING, TRADEMARK). The database objects are byte-for-byte those of 0.4.1; the 0.4.1--0.4.2 upgrade is empty on purpose.

0.4.1 and earlier

See the header of each pg_grammar_guard--*--*.sql upgrade script and the release notes on PGXN.