# PocketBase v0.22.55 — Release & Upgrade Intelligence
- **Product:** PocketBase (https://pocketbase.io)
- **Version:** v0.22.55
- **Released:** Sep 06, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/pocketbase/updates/v0.22.55/

## Executive Summary (TL;DR)
PocketBase v0.22.55. Source highlight: (_Backported from v0.40.3_) Fixed collection index validator to allow expressions with parenthesis in the optional `WHERE` clause.

## Bug Fixes
- (_Backported from v0.40.3_) Fixed collection index validator to allow expressions with parenthesis in the optional `WHERE` clause.
- (_Backported from v0.40.3_) Fixed nested cascade delete of self-referenced relation records.