v4.2.1

maximhq/bifrostv4.2.1Aug 22, 2025by ravitemer

AI Summary

Fixes critical workspace cache locking issues in MCP Hub to prevent deadlocks caused by crashed processes.

Key Highlights

Increased lock retry delay from 50ms to 100ms for better stability.
Added automatic stale lock file cleanup after maximum retry attempts.
Implemented recursive retry mechanism with infinite loop protection.
Enhanced error messaging for lock acquisition failures.

New Features

Improved lock file handling
Automatic stale lock cleanup
Recursive retry mechanism

Full Release Notes


### Fixed

- **Workspace Cache Locking**: Improved lock file handling to prevent persistent deadlocks
  - Increased lock retry delay from 50ms to 100ms for better stability
  - Added automatic stale lock file cleanup after maximum retry attempts
  - Implemented recursive retry mechanism with infinite loop protection
  - Enhanced error messaging and logging for lock acquisition failures
  - Resolves issue where crashed processes could leave persistent lock files blocking new hub instances