chore(deps): bump the backend group across 1 directory with 5 updates

[dependabot]

Bumps the backend group with 5 updates in the /backend directory:

Package	From	To
alembic	1.18.5	1.19.0
fastapi	0.139.2	0.141.1
redis	8.0.1	8.1.0
strawberry-graphql	0.322.0	0.323.2
uvicorn	0.51.0	0.52.1

Updates alembic from 1.18.5 to 1.19.0

Release notes

Sourced from alembic's releases.

1.19.0

Released: August 4, 2026

changed

• [changed] [installation] Environmental updates:

  -   Trove classifiers now include Python 3.15 which is now part of CI
      integration
  
  
  Python 3.14 is also added to trove classifiers which had been previously
  omitted
  
  
  Implemented PEP 604 style unions in type annotations
  

feature

• [feature] [autogenerate] Autogenerate now detects the addition and removal of named CHECK constraints, as part of the default autogenerate behavior. Detection is name-based only; a constraint whose name is unchanged is presumed equivalent regardless of its expression text, as reliably normalizing SQL expressions across backends for comparison purposes is not generally feasible. This behavior is implemented as a plugin named alembic.autogenerate.checkconstraint_byname, and may be disabled if not desired by excluding it from the EnvironmentContext.configure.autogenerate_plugins list. Pull request courtesy Francois van Kempen.

  References: #508

bug

• [bug] [commands] Fixed inconsistency where running stamp or downgrade to base in offline (--sql) mode would emit a DROP TABLE alembic_version statement, while the same operations in online mode never drop the version table. Offline mode no longer emits this DROP, matching online behavior. The version table continues to be created when it does not exist; only the spurious offline-only drop has been removed. Pull request courtesy imurodl.

  References: #1822

Commits

• See full diff in compare view

Updates fastapi from 0.139.2 to 0.141.1

Release notes

Sourced from fastapi's releases.

0.141.1

Fixes

• 🐛 Fix support for background tasks and headers from dependencies in app.frontend(). PR #16105 by @​tiangolo.

Docs

• 📝 Document FASTAPI_ENV in FastAPI CLI guide. PR #16104 by @​tiangolo.

0.141.0

Features

• ✨ Add app.frontend(check_dir="auto"), to make local development more convenient with fastapi dev. PR #16102 by @​tiangolo.

0.140.13

Fixes

• 🐛 Fix status_code being ignored for SSE and JSONL streaming endpoints. PR #15937 by @​SAURABHSALVE.

Docs

• 📝 Fix format_sse_event docstring rendering of \n\n terminator. PR #15613 by @​AshNicolus.
• 📝 Add API reference page for fastapi.sse. PR #15930 by @​SAURABHSALVE.

0.140.12

Fixes

• 🐛 Fix line splitting in format_sse_event to comply with SSE spec. PR #15515 by @​Zawwarsami16.

0.140.11

Fixes

• 🐛 Fix response_model_* params ignored for non-generator endpoints with Iterable[..] return type. PR #15093 by @​YuriiMotov.

0.140.10

Fixes

• 🐛 Fix handling sequences with nested Annotated types. PR #14874 by @​YuriiMotov.

Internal

• 🐛 Accept any base test failure as regression. PR #16092 by @​tiangolo.
• 🐛 Preserve pytest exit code in regression check. PR #16091 by @​tiangolo.
• ✅ Test PR regressions against base code. PR #16090 by @​tiangolo.

0.140.9

Fixes

• 🐛 Fix exclude_defaults not propagated to dict keys and values in jsonable_encoder. PR #16043 by @​MBGrao.

... (truncated)

Commits

• 95f8322 🔖 Release version 0.141.1 (#16106)
• f137944 📝 Update release notes
• d623544 🐛 Fix support for background tasks and headers from dependencies in `app.fron...
• 1d211b9 📝 Update release notes
• 8a1f876 📝 Document FASTAPI_ENV in FastAPI CLI guide (#16104)
• c7e7b65 🔖 Release version 0.141.0 (#16103)
• 6bceb84 📝 Update release notes
• 5429fed ✨ Add app.frontend(check_dir="auto"), to make local development more conven...
• 628663f 🔖 Release version 0.140.13 (#16096)
• 0b54fd0 📝 Update release notes
• Additional commits viewable in compare view

Updates redis from 8.0.1 to 8.1.0

Release notes

Sourced from redis's releases.

8.1.0

Changes

✨ Highlights

Async maintenance notifications

redis-py now supports server-pushed maintenance notifications in the asyncio stack for both standalone and cluster clients, bringing the async client to parity with the sync implementation. When a Redis deployment signals maintenance events (such as node migration or failover windows), the async client reacts through the maintenance-notifications handler (redis/maint_notifications.py and its async integration under redis/asyncio/), allowing applications to adapt connection handling during maintenance without downtime. (#4177)

Expanded command coverage

This release adds a batch of new command surfaces across core data types and modules:

• Lists — LMOVEM / BLMOVEM for moving multiple elements between lists (#4174).
• Sets — SDIFFCARD and SUNIONCARD cardinality commands (#4171).
• Streams — MAXCOUNT / MAXSIZE options for XREAD and XREADGROUP (#4173).
• Time Series — TS.READ (#4170), TS.QUERYLABELS (#4197), TS.NRANGE / TS.NREVRANGE (#4163), and an exclude_empty (EXCLUDEEMPTY) option for TS.MRANGE / TS.MREVRANGE (#4188).
• Search — FT.ALIASLIST (#4198) and a COLLECT reducer for aggregations (#4179).
• Sentinel — replica sentinel aliases (#4127).

🚀 New Features

• Add replica sentinel aliases (#4127)
• Add TS.NRANGE and TS.NREVRANGE support to the timeseries command surface (#4163)
• feat: add TS.READ command support to the timeseries module (#4170)
• feat: add SDIFFCARD and SUNIONCARD command support (#4171)
• feat: add MAXCOUNT/MAXSIZE support to XREAD and XREADGROUP (#4173)
• feat: add LMOVEM and BLMOVEM commands for moving multiple list elements (#4174)
• feat: add async maintenance-notifications support for standalone and cluster clients (#4177)
• feat: add COLLECT reducer support to search aggregations (#4179)
• feat: add exclude_empty (EXCLUDEEMPTY) option to TS.MRANGE and TS.MREVRANGE (#4188)
• feat: add TS.QUERYLABELS support to the timeseries command surface (#4197)
• feat: add FT.ALIASLIST support (#4198)

⚠️ Experimental

• feat: add client-side HIMPORT fieldset support for standalone and cluster clients (#4205)

The feature considered unstable and public API might be changed in the future minor version

🐛 Bug Fixes

• fix: detect closed pooled connection without consuming pending push data (RESP3 + hiredis) (#4156)
• Fix Sentinel pool capacity loss after failover (#4193)

... (truncated)

Commits

• e013126 Testing with 8.10 GA (#4227)
• 059d1e9 Fixed TS.NRANGE commands to correctly apply aggregators (#4225)
• d486a0a Fix FIELDNAME alias dropping first character of un-prefixed fields (#4224)
• fb93104 feat: add client-side HIMPORT fieldset support for standalone and cluster cli...
• 9197609 Fix lat/lon swap in search querystring geo() helper (#4223)
• 14714a0 fix: Fixed double decoding issue with unquote() (#4222)
• 227280a Update lib version to 8.1.0
• 88d16d0 Decode ACL LOG string values on the default RESP3 legacy callback (#4201)
• 599fd75 feat: add FT.ALIASLIST support (#4198)
• 71e275e test: add VectorField RERANK serialization tests for sync and async search (#...
• Additional commits viewable in compare view

Updates strawberry-graphql from 0.322.0 to 0.323.2

Commits

• See full diff in compare view

Updates uvicorn from 0.51.0 to 0.52.1

Release notes

Sourced from uvicorn's releases.

Version 0.52.1

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)
• Remove duplicate Content-Type and Content-Length headers from WebSocket denial responses on the websockets-sansio implementation, and deliver non-UTF-8 denial bodies intact (#3041)

Full Changelog: Kludex/uvicorn@0.52.0...0.52.1

Version 0.52.0

This release adds an experimental HTTP/1.1 implementation backed by zttp, a sans-IO HTTP parser I've been developing on the side: a core written in Zig, with bindings to Python. It has been running under a fuzzer for some weeks now, and has been through multiple rounds of security auditing.

It is still experimental, so don't put it in front of production traffic yet. Try it with --http zttp, and please send any feedback to the issue tracker.

Added

• Add an experimental zttp HTTP/1.1 implementation, selectable with --http zttp (#2979)

Fixed

• Keep non-ASCII WebSocket request headers intact with websockets 17.0, which encodes them with ISO-8859-1 (#3036)

Full Changelog: Kludex/uvicorn@0.51.0...0.52.0

Changelog

Sourced from uvicorn's changelog.

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)
• Remove duplicate Content-Type and Content-Length headers from WebSocket denial responses on the websockets-sansio implementation, and deliver non-UTF-8 denial bodies intact (#3041)

0.52.0 (July 29, 2026)

This release adds an experimental HTTP/1.1 implementation backed by zttp, a sans-IO HTTP parser I've been developing on the side: a core written in Zig, with bindings to Python. It has been running under a fuzzer for some weeks now, and has been through multiple rounds of security auditing.

It is still experimental, so don't put it in front of production traffic yet. Try it with --http zttp, and please send any feedback to the issue tracker.

Added

• Add an experimental zttp HTTP/1.1 implementation, selectable with --http zttp (#2979)

Fixed

• Keep non-ASCII WebSocket request headers intact with websockets 17.0, which encodes them with ISO-8859-1 (#3036)

Commits

• ee8e45c Version 0.52.1 (#3056)
• b57926d Remove duplicate content headers from WebSocket denial responses on websocket...
• 49de1b9 chore(deps): bump pymdown-extensions from 10.21.3 to 11.0 (#3042)
• 2f3fa3a Complete server-initiated closes in SansIO WebSocket protocols (#3053)
• 8c59d55 chore(deps): bump the github-actions group with 5 updates (#3054)
• e148451 Handle connection loss during WebSocket write backpressure (#3050)
• e16a69b Add missing write flow control to websockets-sansio (#3048)
• ef1dd44 Fold the zttp-only tests back into the HTTP test suite (#3046)
• 8f1b884 Version 0.52.0 (#3044)
• f6833db Add experimental zttp HTTP/1.1 protocol (#2979)
• Additional commits viewable in compare view

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