Google Antigravity v0.1.3

0.1.3 June 11, 2026 Initial subagent orchestration and standard Google AI model targets This release introduces per-server MCP timeout configurations and improves local connection error handling. Improvements (2) Per-Server MCP Timeout : Added configuration support to set custom timeouts (in seconds) for individual MCP servers ( BaseMcpServerConfig.timeout_seconds ). Terminal Error Propagation : The local connection now propagates terminal trajectory errors from the localharness binary as structured AntigravityExecutionError exceptions in the Python SDK during step collection. Fixes (0) Patches (0) 0.1.2 June 4, 2026 Google Antigravity SDK release 0.1.2 updates This release adds Windows platform support, introduces programmatic turn-level stream cancellation, simplifies safety policy configurations for the Model Context Protocol (MCP), and removes the deprecated MCP SSE transport. Improvements (3) Windows Platform Support : Native compatibility added for Windows x86_64 and ARM64 environments. Path and file URI resolution now correctly handles drive letters and directory separators under Windows. Programmatic Turn-Level Cancellation : Added programmatic stream cancellation via ChatResponse.cancel() . This programmatically aborts active generation turns directly from the client and raises AntigravityCancelledError (subclass of asyncio.CancelledError ) to cleanly signal cancellation in the async flow ( examples/getting_started/cancellation.py ). Direct MCP Safety Policy Configuration : Overloaded policy.allow , policy.deny , and policy.ask_user to accept server configurations ( BaseMcpServerConfig ) directly instead of typing namespaced string paths. Policy evaluation follows a 9-level precedence model (Specific > Prefix Wildcard > Global Wildcard) with longest-match prefix validation to protect against collisions. Fixes (0) Patches (1) Deprecation of SSE Transport : Removed the legacy McpSseServer configuration and connection handlers in favor of standard Stdio and St