devtools: v2.1.0

2.1.0 (2026-09-14)

Features

• Add ContainerCodeExecutor for Docker-sandboxed code execution (#541) (a52b669)
• dev: add --min_instances/--max_instances flags to agent_engine deploy (#899) (0dc138c)
• dev: add Origin validation to the dev server (DNS-rebinding defense in depth) (#557) (f280eba)

Bug Fixes

• build: stop compiling the dev CLI entrypoint into dist/cjs (#861) (da9a492)
• cli: quit adk run on a whitespace-padded exit (#896) (0568990)
• cli: stop staging an empty node_modules and a zero-byte lockfile into the deploy image (#894) (fd4ac9a)
• cli: surface model errors and make agent stack traces readable (#625) (9508dee)
• cli: use GOOGLE_GENAI_USE_ENTERPRISE instead of deprecated GOOGLE_GENAI_USE_VERTEXAI (#897) (6dc4a3d)
• core: make transfer and runtime tool confirmation work across runtimes (#808) (6e251bb)
• deploy: pass shell:true to spawn on win32 to fix ENOENT for .cmd binaries (#888) (b46196b)
• dev: let --bundle false actually load an agent (#791) (91357fd), closes #714
• dev: print the command help after a CLI usage error (#892) (206dc97)
• dev: route AgentFile.load multiple-apps/agents warnings through AdkLogger (#879) (905e730)
• guard reads in the dev server against DNS rebinding (#744) (0fe9581)
• remove the no-op @ts-ignore on the esbuild-shim-plugin import (#805) (9566743)

Dependencies

• The following workspace dependencies were updated
  • dependencies
    • @google/adk bumped from ^2.0.0 to ^2.1.0