WP Lock 2.0.0

WP Lock 2.0.0 is a breaking reliability release focused on the database backend.

Highlights

• Removed the bundled flock backend and WP_Lock_Backend_flock.
• Made facade and backend ownership non-reentrant with explicit lifecycle exceptions.
• Added bounded blocking waits (30 seconds by default) and bounded database-error retries.
• Added automatic versioned schema upgrades, a lock_key index, and microsecond-precise TTL storage.
• Added strict input/backend validation and preserved held state after failed release.
• Expanded deterministic lifecycle, timeout, retry, migration, expiration, and fork/concurrency coverage.

Verification

• 51 PHPUnit tests, 140 assertions.
• 95.00% line coverage; CI enforces a 90% minimum.
• GitHub Actions passes on PHP 7.4, 8.0, 8.1, 8.2, and 8.3 against WordPress 7.1 / MariaDB 10.11.

Migration

This release changes custom backend method signatures to return bool, removes the bundled flock class, and rejects repeated acquire/unmatched release calls with LogicException. Blocking acquisition can now return false at its deadline, while persistent database failures throw RuntimeException.

See README.md and CHANGELOG.md before upgrading.

v1.1

Ghost locks got fixed when they prevent acquiring a non-blocking new lock.
SQL queries got optimized.

v1.0

comments and readme