New Integrations

Sim Studio v0.5.77 introduces two new tool integrations to expand workflow capabilities:

• SimilarWeb: Added as a new tool integration for web analytics and competitive intelligence workflows
• Cal.com: Integrated for calendar and scheduling functionality within automation workflows

UX Improvements

Several user experience enhancements were included in this release:

• Note Block Dragging: Enabled body dragging on note blocks to match the behavior of workflow blocks, improving consistency across the interface
• Deployment Descriptions: Human-readable version descriptions for deployments for clearer tracking and documentation
• Documentation: Added instant copy button to docs and performance optimizations for faster page loads

Bug Fixes & Infrastructure

The release addresses critical stability and compatibility issues:

• Streaming: Fixed multi-byte UTF-8 character handling when split across chunks
• Token Management: Corrected Anthropic token limits for streaming with tool calls
• Agent Logging: Fixed agent cost filtering in trace spans
• Executor Logic: Improved conditional deactivation for loops and parallel operations
• Redis Migration: Migrated sockets to Redis for improved scalability

Docker & Validation Updates

Docker Compose environment variables were updated, and hosted API key and credential validation for the Copilot feature were enhanced.