v0.8.56
simstudioai/simv0.8.56Sep 22, 2026by github-actions[bot]
Upgrading?
AI Summary
This release introduces new AI models and evaluation capabilities alongside various UI refinements and critical bug fixes for billing, OAuth, and access management.
Key Highlights
- Added GPT-6 Sol and Luna models, along with Claude Opus 5.5 support.
- Introduced TypeSafe evaluation models for Agents.
- Fixed OAuth token rotation logic and billing ledger aggregation issues.
- Improved organization invite logic to respect inherited access rights.
- Refined UI components including access requests and preview geometry.
New Features
- TypeSafe evaluation models to Agent
- GPT-6 Sol model
- GPT-6 Luna model
- Claude Opus 5.5 provider
Full Release Notes
## Features - feat(jev): add TypeSafe evaluation models to Agent (#8103) - feat(models): add GPT-6 Sol and Luna (#8147) - feat(providers): add Claude Opus 5.5 (#8141) ## Improvements - improvement(settings): consolidate access requests in settings (#8154) - refactor(ui): narrow local style forwarding and preview geometry (#8144) - improvement(ui): share expandable home sections (#8067) - improvement(ui): share public chat composer actions (#8075) - improvement(ui): use chips for table job actions (#8082) - refactor(ui): make measurement styles explicit and reuse preview white (#8142) ## Bug Fixes - fix(knowledge): unschedule a connector whose credential the source rejected and prompt to reconnect (#8158) - fix(billing): keep archived selected workspaces in the invitation applied-state check (#8159) - fix(oauth): rotate a refresh chain only from the token it started from and size the refresh lease for every provider (#8152) - fix(billing): bound every ledger aggregate at the database and size the gate deadline for two (#8148) - fix(billing): let a slow ledger read finish instead of blocking execution at the singleflight default (#8146) - fix(access): align invitations and request navigation (#8145) - fix(organizations): respect inherited access when inviting members (#8131) - fix(mcp): list servers without Credential Group access (#8143) ## Contributors - @BillLeoutsakosvl346 - @TheodoreSpeaks - @waleedlatif1 [View changes on GitHub](https://github.com/simstudioai/sim/compare/v0.8.55...v0.8.56)
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