OpenHands/software-agent-sdk: v1.26.0

Behavioral compatibility notes

The following merged PRs were labeled release-note-required and are called out explicitly in this release:

• #3446 fix(sdk): make default current_datetime timezone-aware (@StressTestor)

What's Changed

• Merge adjacent user messages for strict role alternation by @Oxygen56 in https://github.com/OpenHands/software-agent-sdk/pull/3450
• ci: treat Field default_factory changes as behavioral by @enyst in https://github.com/OpenHands/software-agent-sdk/pull/3519
• feat(llm): inline http(s) image URLs as base64 for models that require it (Kimi K2.6) by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/3219
• fix(sdk): make default current_datetime timezone-aware by @StressTestor in https://github.com/OpenHands/software-agent-sdk/pull/3446
• feat(skills): support tag/SHA in EXTENSIONS_REF; skip polling for pinned refs by @tofarr in https://github.com/OpenHands/software-agent-sdk/pull/3520
• Print agent_type in run-eval print-parameters step by @VascoSch92 in https://github.com/OpenHands/software-agent-sdk/pull/3525
• Add PR description readiness check by @enyst in https://github.com/OpenHands/software-agent-sdk/pull/3527
• fix: add git and reset tool name aliases for trinity-large-thinking by @juanmichelini in https://github.com/OpenHands/software-agent-sdk/pull/2829
• feat: verify credentials in POST /api/mcp/test via optional tool call by @hieptl in https://github.com/OpenHands/software-agent-sdk/pull/3526
• feat(settings): add apply_agent_settings_diff and canonicalize the llm tag on read by @simonrosenberg in https://github.com/OpenHands/software-agent-sdk/pull/3534
• Release v1.26.0 by @all-hands-bot in https://github.com/OpenHands/software-agent-sdk/pull/3531

New Contributors

• @Oxygen56 made their first contribution in https://github.com/OpenHands/software-agent-sdk/pull/3450
• @StressTestor made their first contribution in https://github.com/OpenHands/software-agent-sdk/pull/3446

Full Changelog: https://github.com/OpenHands/software-agent-sdk/compare/v1.25.0...v1.26.0