Sourced from fastapi's releases.

0.142.1

Fixes

• 🐛 Fix repeated endpoint wrapping in included routers. PR #16414 by @​tiangolo.

• 3e33a03 🔖 Release version 0.142.1 (#16415)
• 12ea7f5 📝 Update release notes
• ac88f56 🐛 Fix repeated endpoint wrapping in included routers (#16414)
• bd41128 🔖 Release version 0.142.0 (#16411)
• 7aa21e5 📝 Update release notes
• 4b3949c ✨ Add native OpenTelemetry support (#16403)
• c30032a 📝 Update release notes
• 79d42b2 ✅ Fix frontend test timeout with Starlette Git (#16408)
• a3d205b 📝 Update release notes
• 39c9a47 🔧 Update sponsors: remove Permit.io (#16406)
• Additional commits viewable in compare view

Sourced from uvicorn's releases.

Version 0.54.0

📨 Send metadata after the response body

uvicorn 0.54.0 adds response trailers and 103 Early Hints to its experimental HTTP/2 implementation through zttp.

uv add uvicorn==0.54.0 "zttp>=0.0.34"

• Send HTTP/2 response trailers (#3146). The ASGI http.response.trailers extension lets applications send metadata, such as checksums, after the response body. Clients must send TE: trailers to receive them. Multiple trailer messages are combined before completing the response.
• HTTP/2 remains experimental and opt-in. Enable it with --http zttp --http2. Upgrade-based h2c and WebSockets over HTTP/2 remain unsupported.

💡 Hint at resources before the final response

• Send 103 Early Hints over HTTP/2 (#3137). Applications can use the ASGI http.response.early_hint extension to send resource hints before the final response. Each supplied link becomes a separate Link header.

Full changelog: 0.53.0...0.54.0

Sourced from uvicorn's changelog.

0.54.0 (September 24, 2026)

HTTP/2 support remains experimental. Install zttp>=0.0.34 and enable it with --http zttp --http2.

Added

• Add HTTP/2 response trailers through the ASGI http.response.trailers extension. Clients must send TE: trailers to receive them (#3146)
• Add HTTP/2 103 Early Hints through the ASGI http.response.early_hint extension (#3137)

0.53.0 (September 14, 2026)

This release adds experimental HTTP/2 support through zttp. Enable it with --http zttp --http2. Upgrade-based h2c and WebSockets over HTTP/2 are not supported.

Added

• Add experimental HTTP/2 support through zttp (#2982, #3101)
• Add support for zuvloop (#3104)

Fixed

• Handle comma-separated, case-insensitive Connection: close tokens across HTTP implementations (#3103)
• Trust IPv6 loopback in the default FORWARDED_ALLOW_IPS value (#3119)
• Cancel the HTTP keep-alive timer when upgrading to WebSocket (#3107)

0.52.4 (August 18, 2026)

Fixed

• Remove duplicate Date headers from accepted WebSocket handshakes with websockets-sansio (#3078)

0.52.3 (August 13, 2026)

Changed

• Update zttp to 0.0.24 and use its combined receive path, improving HTTP/1.1 request parsing performance (#3067)

0.52.2 (August 13, 2026)

Fixed

• Update zttp to 0.0.22, fixing bodyless request receives and improving HTTP/1 request parsing performance (#3063)

0.52.1 (August 1, 2026)

Fixed

• Complete the closing handshake on server-initiated WebSocket closes in the websockets-sansio and wsproto implementations, waiting for the client's close reply with a 10 second timeout instead of resetting the connection (#3053)
• Add missing write flow control to the websockets-sansio implementation, preventing data truncation on server-initiated closes with large in-flight payloads (#3048)
• Handle connection loss while a WebSocket write is waiting on backpressure (#3050)

... (truncated)

• 3eb9a9a Version 0.54.0 (#3161)
• cd7ef6d Remove races from supervisor tests (#3134)
• a56c7cc Support HTTP/2 response trailers (#3146)
• 9bd4404 chore(deps): bump anyio from 4.13.0 to 4.14.2 (#3145)
• 21f39ef Add HTTP/2 Early Hints support (#3137)
• See full diff in compare view

Sourced from anthropic's releases.

v1.9.0

1.9.0 (2026-09-28)

Full Changelog: v1.8.0...v1.9.0

Features

• api: add between_tools thinking type (a9a577d)
• api: add claude-sonnet-5-5 (a5a25e9)
• api: add include_inherited and source to workspace rate limits (0bf4af8)
• api: add typed event type values to the Managed Agents events list filter (1b82cd9)
• api: cache diagnostics GA — diagnostics on Message / MessageCreateParams (22062b8)
• tools: optionally run tool calls while the reply streams (26d0812)

Bug Fixes

• client: send no placeholder filename for unnamed file uploads (9e9709d)
• helpers: degrade between_tools thinking to disabled on fallback hops (#952) (a3834d4)
• messages: accept diagnostics in stream() and parse() (#929) (fad840c)

Chores

• api: list the known model ids first in the Model types (e5a082a)
• ci: choose the CI runner by repository (39ccf62)
• client: stop sending beta header from parse and tool runner (#907) (1428100)
• docs: clarify that stream: true returns the raw event stream (82918fa)
• docs: make Managed Agents actor descriptions resource-neutral (34ef524)
• docs: restore the research-preview notice on the Dream type (f03e32e)

Documentation

• add field docstring spacing rule to CLAUDE.md (e5c35f4)
• api: prefer each field's own description over its shared type's (d79a2e7)
• claude.md: add function body spacing rule (3174f8f)
• list importable type names in api.md (56a42ab)

Sourced from anthropic's changelog.

1.9.0 (2026-09-28)

Full Changelog: v1.8.0...v1.9.0

Features

• api: add between_tools thinking type (a9a577d)
• api: add claude-sonnet-5-5 (a5a25e9)
• api: add include_inherited and source to workspace rate limits (0bf4af8)
• api: add typed event type values to the Managed Agents events list filter (1b82cd9)
• api: cache diagnostics GA — diagnostics on Message / MessageCreateParams (22062b8)
• tools: optionally run tool calls while the reply streams (26d0812)

Bug Fixes

• client: send no placeholder filename for unnamed file uploads (9e9709d)
• helpers: degrade between_tools thinking to disabled on fallback hops (#952) (a3834d4)
• messages: accept diagnostics in stream() and parse() (#929) (fad840c)

Chores

• api: list the known model ids first in the Model types (e5a082a)
• ci: choose the CI runner by repository (39ccf62)
• client: stop sending beta header from parse and tool runner (#907) (1428100)
• docs: clarify that stream: true returns the raw event stream (82918fa)
• docs: make Managed Agents actor descriptions resource-neutral (34ef524)
• docs: restore the research-preview notice on the Dream type (f03e32e)

Documentation

• add field docstring spacing rule to CLAUDE.md (e5c35f4)
• api: prefer each field's own description over its shared type's (d79a2e7)
• claude.md: add function body spacing rule (3174f8f)
• list importable type names in api.md (56a42ab)

1.8.0 (2026-09-22)

Full Changelog: v1.7.0...v1.8.0

Features

• api: add support for claude-opus-5-5, inline tool definitions and MCP tool-list pinning (beta) (b5cc700)

Bug Fixes

• api: share one evaluated_permission enum across Managed Agents events (f4f51c8)

... (truncated)

• a7285e9 Merge pull request #1958 from anthropics/release-please--branches--main--chan...
• 3e2ac95 release: 1.9.0
• 24b1d55 codegen metadata
• a5a25e9 feat(api): add claude-sonnet-5-5
• 2264bd8 codegen metadata
• 9e9709d fix(client): send no placeholder filename for unnamed file uploads
• 1b82cd9 feat(api): add typed event type values to the Managed Agents events list filter
• 26d0812 feat(tools): optionally run tool calls while the reply streams
• ebb8239 codegen metadata
• a3834d4 fix(helpers): degrade between_tools thinking to disabled on fallback hops (#952)
• Additional commits viewable in compare view

Sourced from langchain-anthropic's releases.

langchain-anthropic==1.7.5

Changes since langchain-anthropic==1.7.4

release(anthropic): 1.7.5 (#40912) fix(anthropic): support Claude Sonnet 5.5 compatibility (#40882) fix(anthropic): serialize invalid tool calls as tool use on replay (#40864)

• d6167c0 release(anthropic): 1.7.5 (#40912)
• aaf25d0 test(openai): drop retired completions live tests (#40910)
• 04ac76c chore(model-profiles): refresh model profile data (#40902)
• 08064f4 release(core): 1.6.6 (#40906)
• ce90661 fix(anthropic): support Claude Sonnet 5.5 compatibility (#40882)
• 78a3cbc hotfix(fireworks): replace unavailable integration test model (#40890)
• 316c045 release(fireworks): 1.7.0 (#40889)
• be854a1 release(langchain): 1.4.3 (#40888)
• 2ade674 fix(langchain): sanitize cache settings for fallback models (#40886)
• 88b9727 feat(fireworks): add prompt caching middleware (#38823)
• Additional commits viewable in compare view

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