v1.70.0 (2026-03-17)

What's Changed

🚀 Features

• Add bedrock_inference_profile to BedrockModelSettings and BedrockEmbeddingSettings by @dsfaccini in #4697

🐛 Bug Fixes

• fix: OpenRouter Anthropic model profile matching for dotted model numbers by @majdalsado in #4690
• fix: always pass embedding_types to Cohere embed() to prevent SDK TypeError by @adityasingh2400 in #4524
• fix(google): add '512' as supported image generation size by @nat-bishop in #4649
• fix(bedrock): sanitize tool names before sending to API by @DouweM in #4713
• fix: handle malformed tool call args in Anthropic retry path by @Saad-Azi in #4431
• fix: recover prior text for thinking-only responses instead of retrying by @majiayu000 in #4558

New Contributors

• @adityasingh2400 made their first contribution in #4524
• @nat-bishop made their first contribution in #4649
• @Saad-Azi made their first contribution in #4431

Full Changelog: v1.69.0...v1.70.0

v1.69.0 (2026-03-16)

What's Changed

🚀 Features

• Add description parameter to Agent and set gen_ai.agent.description on span by @Kludex in #4677
• Send multimodal tool results to APIs directly instead of splitting into user parts by @dsfaccini in #3826
• Add response-based fallback support for FallbackModel by @sarth6 in #3786

🐛 Bug Fixes

• fix: enforce deps type on FunctionToolset.tool via tool/tool_plain split by @adtyavrdhn in #4626
• fix: copy details dict in Usage.__add__ to prevent mutation of or… by @sksvineeth in #4606

Full Changelog: v1.68.0...v1.69.0

v1.68.0 (2026-03-12)

What's Changed

Changes

• Remove redundant running tools parent span by @Kludex in #4560

🐛 Bug Fixes

• fix(openai): thinking detection for gpt-5.3-chat-latest by @dsfaccini in #4567
• fix: AG-UI follow-up messages failing after built-in tool use by @gcheshkov in #4624

📦 Dependencies

• fix: remediate open Dependabot security alerts by @dsfaccini in #4520

New Contributors

• @gcheshkov made their first contribution in #4624

Full Changelog: v1.67.0...v1.68.0

What's Changed

🚀 Features

• Remove redundant running tools parent span by @Kludex in #4560

🐛 Bug Fixes

• fix(openai): thinking detection for gpt-5.3-chat-latest by @dsfaccini in #4567
• fix: AG-UI follow-up messages failing after built-in tool use by @gcheshkov in #4624

📦 Dependencies

• fix: remediate open Dependabot security alerts by @dsfaccini in #4520

New Contributors

• @gcheshkov made their first contribution in #4624

Full Changelog: v1.67.0...v1.68.0

v1.67.0 (2026-03-06)

What's Changed

🚀 Features

• Add GPT-5.4 support by @theadityarao in #4554
• Support WebSearchTool for OpenRouterModel through OpenRouter plugins by @mochow13 in #4022
• Rehaul Tavily search tool by @sarth6 in #4158
• Enable native structured output support for Ollama provider by @OiPunk in #4536

🐛 Bug Fixes

• Add missing Vercel AI SDK v6 tool approval part types by @bendrucker in #4388

New Contributors

• @theadityarao made their first contribution in #4554

Full Changelog: v1.66.0...v1.67.0

v1.66.0 (2026-03-04)

What's Changed

🚀 Features

• Enable native structured output for Qwen 3.5 models by @ggozad in #4534
• Add Nano Banana 2 (gemini-3.1-flash-image-preview) by @adtyavrdhn in #4525

🐛 Bug Fixes

• Fix builtin tool availability checking when using TemporalAgent with multiple models by @mattbrandman in #4100
• Fix HasMatchingSpan YAML export/import round-trip for SpanQuery arguments by @debu-sinha in #4454

New Contributors

• @debu-sinha made their first contribution in #4454
• @advaitathreya made their first contribution in #4499

Full Changelog: v1.65.0...v1.66.0

v1.65.0 (2026-03-03)

What's Changed

🚀 Features

• Support files uploaded to providers via new UploadedFile object by @mattbrandman in #3942
• feat: add gemini-3.1-flash-lite-preview model by @rian-dolphin in #4517

🐛 Bug Fixes

• fix: add __reduce__ to exception classes for pickle support by @OiPunk in #4504

New Contributors

• @OiPunk made their first contribution in #4504

Full Changelog: v1.64.0...v1.65.0

v1.64.0 (2026-03-02)

What's Changed

🚀 Features

• feat: support template=False on PromptedOutput and NativeOutput to disable schema prompt by @DouweM in #4497

🐛 Bug Fixes

• Fix missing run_id on ModelRequest in UI adapter runs by @madanlalit in #4419
• Wrap Google streaming errors as ModelHTTPError/ModelAPIError by @saakshigupta2002 in #4437
• fix(mcp): move __aexit__ guard inside lock to prevent TOCTOU race by @jameslcowan in #4435
• fix: BaseToolCallPart.has_content() incorrectly returns False for falsy arg values by @bsherifi in #4442
• fix(anthropic): auto-fallback to streaming for high max_tokens by @DouweM in #4496
• fix(vercel): Align dump_messages output with Vercel spec by @dsfaccini in #4196
• fix: cancel sibling tasks on any exception in parallel tool execution by @LakshmiSravyaVedantham in #4502

New Contributors

• @jameslcowan made their first contribution in #4435
• @bsherifi made their first contribution in #4442
• @LakshmiSravyaVedantham made their first contribution in #4502

Full Changelog: v1.63.0...v1.64.0

v1.63.0 (2026-02-23)

What's Changed

🚀 Features

• Add Gemini 3.1 Pro Preview support by @majdalsado in #4372
• feat(gemini): Logprob Support by @DRXD1000 in #4269
• Add args_validator parameter to tools for pre-execution validation by @jerry-reevo in #4016

🐛 Bug Fixes

• Fix Temporal and DBOS MCP to use cached tools instead of fetching each time by @DouweM in #4331
• Updated Cohere content item typing to fix the incompatibility by @DarthJuri in #4384
• Fix Anthropic model on Bedrock incorrectly being treated as supporting json schema output by @vimota in #4369
• fix(pydantic-evals): gracefully handle custom TracerProviders without add_span_processor by @AtharvaJaiswal005 in #4328
• fix: use non-greedy regex in strip_markdown_fences to stop at closing fence by @sksvineeth in #4398
• fix: add defaults for optional fields in OpenRouter streaming models by @majdalsado in #4371
• Set BuiltinToolCallPart.id for OpenAI Responses WebSearch/FileSearch by @yipstar in #4391
• fix: Identify new messages by run_id instead of index by @madanlalit in #4086

New Contributors

• @majdalsado made their first contribution in #4372
• @DarthJuri made their first contribution in #4384
• @AtharvaJaiswal005 made their first contribution in #4328
• @sksvineeth made their first contribution in #4398
• @DRXD1000 made their first contribution in #4269
• @yipstar made their first contribution in #4391

Full Changelog: v1.62.0...v1.63.0

v1.62.0 (2026-02-18)

What's Changed

🚀 Features

• Add tool approval integration for Vercel AI adapter by @bendrucker in #3772
• Add LinePlot analysis type, ROCAUCEvaluator, and KolmogorovSmirnovEvaluator by @dmontagu in #4356

🐛 Bug Fixes

• Fix missing pages in llms.txt and llms-full.txt by @DouweM in #4355
• Handle Groq tool_use_failed errors without tool name/args by retrying by @DouweM in #4354
• fix: handle content filter refusals for Google prompt_feedback and OpenAI refusals by @DouweM in #4315

📦 Dependencies

• bump huggingface to 1.3.4 by @dsfaccini in #4119
• Use griffelib instead of griffe by @dsfaccini in #4313

Full Changelog: v1.61.0...v1.62.0

v1.61.0 (2026-02-17)

What's Changed

🚀 Features

• Support Python 3.14 by @Kludex in #4138

📦 Dependencies

• Upgrade anthropic to 0.80.0, add Claude Sonnet 4.6 by @DouweM in #4345

Full Changelog: v1.60.0...v1.61.0