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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