1.21.0 (2026-05-13)

Full Changelog: v1.20.3...v1.21.0

Features

• internal/types: support eagerly validating pydantic iterators (f089d05)
• metadata: add object metadata viewing, discovery, and validation (#9124) (ba0b5dc)

Bug Fixes

• client: add missing f-string prefix in file type error message (930b1e2)
• update openapi.stainless.yaml for PTY server methods (#9218) (ac1cb22)
• update types for pty control, use int instead of str (#9235) (7ceb2bf)

1.20.3 (2026-05-08)

Full Changelog: v1.20.2...v1.20.3

Features

• make agent version optional in API (#8858) (7e11a9d)
• share HTTP connection pool across SDK instances; refactor polling (#797) (4f2fc4c)
• support setting headers via env (54ead49)

Bug Fixes

• use correct field name format for multipart file arrays (c564da8)

Chores

• add get secret to stainless (#7833) (ce39778)
• internal: more robust bootstrap script (115744e)
• internal: reformat pyproject.toml (89e8401)

1.20.2 (2026-05-01)

Full Changelog: v1.20.1...v1.20.2

Bug Fixes

• additional polling updates (#794) (26e409a)

1.20.1 (2026-05-01)

Full Changelog: v1.20.0...v1.20.1

Documentation

• add missing SDK operations to README-SDK (#791) (98a746a)

1.20.0 (2026-04-21)

Full Changelog: v1.19.0...v1.20.0

Features

• add OO SDK support for new Agent API calls (#786) (6197567)
• axon: add working directory / directory to launch agent (#8689) (2097995)

Performance Improvements

• client: optimize file structure copying in multipart requests (64f27ad)

Chores

• tests: bump steady to v0.22.1 (c72f34d)

1.19.0 (2026-04-13)

Full Changelog: v1.18.1...v1.19.0

Features

• Add wake on axon event as an API primitive (#8681) (255099a)
• Allow API keys to create API and restricted keys (#8663) (2e03b55)

Bug Fixes

• add missing agent API paths to stainless config (#8699) (4f6fe60)
• ensure file data are only sent as 1 parameter (f7ca2cc)

Documentation

• add snapshot, suspend & resume example (#764) (f4b942b)
• added Async vs Sync tabs, removed top-level class descriptions (#783) (6a99c56)
• restructure sphinx docs with async-first API reference and full type coverage (#782) (514cf93)
• show full field descriptions for SDK parameter types (#784) (f04a506)

1.18.1 (2026-04-10)

Full Changelog: v1.17.0...v1.18.1

Bug Fixes

• add list events to axon (#8648) (1203b57)
• TTL shutdown showed non-standard reason in devbox logs (#8636) (8ac5cc5)

Documentation

• clarify that we don't support git commit SHA in git agents/blueprint builds (#8638) (66b0895)

1.17.0 (2026-04-09)

Full Changelog: v1.16.0...v1.17.0

Features

• Add protocol, launch etc arguments to attach axon grpc, persist them in the db (#8564) (76ad33d)
• api: add lifecycle configuration to launch parameters (#8606) (1dd716d)
• stream kernel messages (kmsg) to devbox logs (#8588) (8f0ad67)

Bug Fixes

• broker: remove codex in favor of codex via acp (#8602) (118162e)
• client: preserve hardcoded query params when merging with user params (5ce9b5d)
• propagate git ref to maverick for git-based agents (#8608) (fc633d6)

Chores

• Cleanup remaining junk left over from browser and computer use (#8553) (ddccee2)

Documentation

• fix typo, fix repoc/git-based agent mounts ignoring custom mount paths (#8537) (638bc7a)

1.16.0 (2026-04-03)

Full Changelog: v1.15.0...v1.16.0

Features

• add specific message when a devbox fails due to missing its health checks (#8535) (2b27148)

Chores

• blueprints: deprecate blueprints.preview() method (#8526) (b7a2ce9)
• Remove computer and browser use controllers (#8530) (b5bfa7d)

1.15.0 (2026-04-02)

Full Changelog: v1.14.1...v1.15.0

Features

• benchmark-runs: add state filter and multi-value benchmark_id support to listBenchmarkRuns (#8480) (08e6a25)

Bug Fixes

• Add after_sequence param to axon subscribe (#8497) (454cce4)