v0.3.21

What's new

Added

• Parallel tool execution in multi_tool_use.parallel for independent task workflows
• Session resume-thread coverage in tests

Changed

• Desktop and web parity polish across the TUI and runtime surfaces
• Onboarding and approval UX refinement from prior phase 3 iteration

Fixed

• Runtime pre-release startup issues and config-path edge cases
• Clippy lint regressions introduced by the last parity pass

Security/Hardening

• General pre-release hardening for runtime app behavior

Full changelog: v0.3.20...v0.3.21