v1.4.455

danielmiessler/Fabricv1.4.455Jun 9, 2026by github-actions[bot]

AI Summary

This release adds Claude Fable 5 model support and introduces persistent caching for provider model discovery to improve reliability and performance.

Key Highlights

Persistent cache for provider model discovery results
Serve stale cache during discovery failures
Add Claude Fable 5 Anthropic model support
Return concise localized errors for rate-limited fetches

New Features

Persistent cache implementation
Claude Fable 5 model support
Rate limit error handling and localization

Full Release Notes

## Changes

### PR [#2138](https://github.com/danielmiessler/Fabric/pull/2138) by [ksylvan](https://github.com/ksylvan): New Claude Fable model + cache OpenAI model discovery and handle provider rate limits

- Add persistent cache for provider model discovery results, improving performance and reliability of provider integrations.
- Serve stale model caches during discovery failures, ensuring continued operation when upstream providers are unavailable.
- Add Claude Fable 5 Anthropic model support, with sampling parameters automatically omitted for compatibility.
- Return concise localized errors for rate-limited model fetches, with updated translations across all supported locales.
- Update Go dependencies for AI provider integrations to keep upstream libraries current.