# PocketBase v0.40.0 — Release & Upgrade Intelligence
- **Product:** PocketBase (https://pocketbase.io)
- **Version:** v0.40.0
- **Released:** Aug 23, 2026
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/pocketbase/updates/v0.40.0/

## Executive Summary (TL;DR)
PocketBase v0.40.0. Source highlight: _To update the prebuilt executable you can run `./pocketbase update`._

## Breaking Changes & Deprecations
- _⚠️ Note that this could be a slight breaking change in case you are chaining PocketBase commands and relied on the previous `0` exit status for `Command.RunE` returned errors._
- - `filesystem.OnNewWriter()` hook to allow listening for new/to-be-created files _(it is not exposed in `core.App` instance for now to avoid introducing breaking changes)_.
- - `filesystem.OnDelete()` hook to allow listening for deleted files _(it is not exposed in `core.App` instance for now to avoid introducing breaking changes)_.

## New Features
- Added quotes around the default `Content-Disposition` serving filename in case custom name with special characters is provided.
- Added `Cross-Origin-Opener-Policy:same-origin` to the default security response headers.
- Added `Record.GetInt64(field)` helper (note that the serializable max safe integer of the `number` field is ~2^53-1).
- Added `Store.Keys()` method that returns a slice with all of the store keys.
- Added new `DELETE /api/logs` endpoint and UI control to delete all logs without changing the `maxDays` retention setting.
- Added new log settings option to limit the max `Log.Data` size that will be saved in the database (default to ~16KB).