2.9.58
July 20, 2026
New models
- ·Claude Sonnet 5 and Claude Fable 5. Sonnet 5 is now the default model for new conversations.
- ·GPT-5.6 in all three sizes — Sol, Terra, and Luna.
- ·Grok 4.5 and Grok 4.3.
Improved
- ·The model picker now shows the current flagship models by default. Everything else is still available — switch on "show all models" to see the full list.
- ·Signing in now opens your browser and hands the session back to the app, so login works reliably again.
Fixed
- ·Closed several gaps in the script sandbox where a script could reach past the permissions you approved — through symlinked file paths, redirected network requests, or attaching another database. Found in review, not from any incident. Full write-up on the blog.
- ·Tools that write a lot of diagnostic output no longer stall while starting up.