v2026.09.22
triggerdotdev/trigger.devv2026.09.22Sep 21, 2026by knu
Upgrading?
AI Summary
This release prioritizes security and JSONPath compatibility for the Huginn project by restricting legacy method calls and migrating to the RFC 9535 standard.
Key Highlights
- Restricts legacy JSONPath method calls to an allowlist
- Migrates to RFC 9535 JSONPath evaluation by default
- Addresses security advisory GHSA-9x7r-mpvj-vj8v
- Database migration conservatively handles agents with uncertain expressions
New Features
- Legacy evaluation mode toggle via `use_legacy_jsonpath: true`
- User-facing upgrade guide for migration steps
- Grouped listing of affected Agent URLs during migration
Full Release Notes
# v2026.09.22 ## JSONPath safety and compatibility - Restrict legacy JSONPath method calls to an allowlist for JSON value types. The guard also covers filters, computed indexes, and direct uses of the jsonpath gem. See [GHSA-9x7r-mpvj-vj8v](https://github.com/huginn/huginn/security/advisories/GHSA-9x7r-mpvj-vj8v). - Use RFC 9535 JSONPath evaluation by default. Agents requiring legacy behavior can use `use_legacy_jsonpath: true`; legacy evaluation remains subject to the method allowlist. - Normalize examples and defaults to JSONPath expressions with an explicit `$` root. ## Upgrading The database migration converts expressions only when compatibility can be established conservatively. Agents with uncertain expressions retain their original paths and receive `use_legacy_jsonpath: true`. The migration lists affected Agent URLs grouped by user, without exposing expressions or event data. Review these Agents before removing the compatibility flag. See the [upgrade guide](https://github.com/huginn/huginn/blob/v2026.09.22/UPGRADING.md#gradual-migration-to-rfc-9535-jsonpath) for migration steps and compatibility considerations. **Full Changelog**: https://github.com/huginn/huginn/compare/v2026.09.21...v2026.09.22
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