v0.8.19

simstudioai/simv0.8.19Sep 2, 2026by github-actions[bot]

AI Summary

This release focuses on enhancing authentication workflows and MCP (Model Context Protocol) support, alongside critical bug fixes for billing, desktop stability, and agent configuration.

Key Highlights

Exposed authenticated run subjects for workflows
Added personal MCP OAuth connections
Fixed billing logic to coerce cost multipliers
Hardened desktop update and quit flows
Improved Agent advanced MCP option placement

New Features

Expose authenticated run subjects
Add personal MCP OAuth connections

Full Release Notes

## Features

- feat(workflows): expose authenticated run subjects (#7088)
- feat(credential-groups): add personal MCP OAuth connections (#7353)

## Improvements

- improvement(docs): streamline API reference navigation (#7383)

## Bug Fixes

- fix(billing): coerce COST_MULTIPLIER to a number before sandbox pricing (#7399)
- fix(desktop): harden update and quit flows (#7395)
- fix(agent): ignore empty advanced MCP bindings (#7397)
- fix(agent): move advanced MCP option to bottom (#7389)
- fix(workflow): preserve canvas and deploy modal behavior (#7392)
- fix(files): index generated docs without compiling and fix the docx sandbox bundle (#7386)
- fix(monday): support OAuth 2.1 (#7384)
- fix(execution): keep terminal reconnect off runs a Sim run tool owns (#7382)

## Other Changes

- chore(skills): remove dated patterns and redundancy from skill prompts (#7398)

## Contributors

- @BillLeoutsakosvl346
- @TheodoreSpeaks
- @icecrasher321
- @waleedlatif1

[View changes on GitHub](https://github.com/simstudioai/sim/compare/v0.8.18...v0.8.19)