[dependabot]

Bumps twisted from 24.11.0 to 26.10.0rc1.

Release notes

Sourced from twisted's releases.

Twisted 26.10.0rc1

twisted 26.10.0rc1 (2026-10-22)

This is the last release with support for Python 3.10.

This include fixes for:

• CVE-2026-83813 (GHSA-jj36-9pvh-vj5r),
• GHSA-vpp8-g58w-m8mp (no CVE assigned yet)
• GHSA-cwm5-jh59-mwxr (no CVE assigned yet)
• GHSA-3476-c5c2-fr73 (no CVE assigned yet)
• GHSA-q7qq-6mhp-9rc4 (no CVE assigned yet)
• GHSA-2qrf-pqgx-qh9v (no CVE assigned yet)
• GHSA-53xc-49m8-p798 (no CVE assigned yet)

Features

• It is now possible to set the SO_REUSEPORT and SO_REUSEADDR TCP socket flags from user code. (#9101)
• Python 3.14 is now supported. (#12640)
• twisted.internet.defer.Deferred.__iter__, used when awaiting a Deferred, is now about 2-3% faster. (#12727)

Bugfixes

• twisted.internet.tcp.Port.startListening() now closes the socket when raising CannotListenError. (#6108)
• Initiating a TCP connection with an address literals and a port outside of the 1-65535 range in twisted.internet.tcp.BaseClient and twisted.internet.iocpreactor.tcp.Client now triggers an errback instead of an unhandled error. This change might also fix other unhandled errors occurred while connecting using address literals. (#7798)
• twisted.logger.LoggingFile.fileno now raises io.UnsupportedOperation instead of returning -1. This fixes an interoperability issue with multiprocessing. (#9638)
• twistd now exits with a non-zero status when given an unknown subcommand. (#12656)
• twisted.internet.testing.MemoryReactor.removeAll() now returns what was removed to comply with IReactorFDSet.removeAll() (#12743)
• twisted.internet.asyncioreactor.AsyncioSelectorReactor.callLater now has the same signature as twisted.internet.interfaces.IReactorTime.callLater. twisted.internet.asyncioreactor.AsyncioSelectorReactor.callFromThread now has the same signature as twisted.internet.interfaces.IReactorFromThreads.callFromThread. (#12767)
• twisted.protocols.ftp.FTPClient now uses ip address of the original ftp server to open passive data connections by default, instead of trusting PASV responses. (#12847)

Improved Documentation

• The “Writing Servers” and “UDP Networking” documentation pages have been updated to remove obsolete references to persisting the reactor (a feature gone from Twisted for several decades now), and to better explain the factory and protocol setup and teardown lifecycle. (#5031)
• Twisted's policy documentation now includes a prominently featured, clear explanation of our AI policy: to wit, including the outputs of generative AI systems is forbidden. (#12676)

... (truncated)

Changelog

Sourced from twisted's changelog.

twisted 26.10.0rc1 (2026-10-22)

This is the last release with support for Python 3.10.

This include fixes for:

• CVE-2026-83813 (GHSA-jj36-9pvh-vj5r),
• GHSA-vpp8-g58w-m8mp (no CVE assigned yet)
• GHSA-cwm5-jh59-mwxr (no CVE assigned yet)
• GHSA-3476-c5c2-fr73 (no CVE assigned yet)
• GHSA-q7qq-6mhp-9rc4 (no CVE assigned yet)
• GHSA-2qrf-pqgx-qh9v (no CVE assigned yet)
• GHSA-53xc-49m8-p798 (no CVE assigned yet)

Features

• It is now possible to set the SO_REUSEPORT and SO_REUSEADDR TCP socket flags from user code. (#9101)
• Python 3.14 is now supported. (#12640)
• twisted.internet.defer.Deferred.__iter__, used when awaiting a Deferred, is now about 2-3% faster. (#12727)

Bugfixes

• twisted.internet.tcp.Port.startListening() now closes the socket when raising CannotListenError. (#6108)
• Initiating a TCP connection with an address literals and a port outside of the 1-65535 range in twisted.internet.tcp.BaseClient and twisted.internet.iocpreactor.tcp.Client now triggers an errback instead of an unhandled error. This change might also fix other unhandled errors occurred while connecting using address literals. (#7798)
• twisted.logger.LoggingFile.fileno now raises io.UnsupportedOperation instead of returning -1. This fixes an interoperability issue with multiprocessing. (#9638)
• twistd now exits with a non-zero status when given an unknown subcommand. (#12656)
• twisted.internet.testing.MemoryReactor.removeAll() now returns what was removed to comply with IReactorFDSet.removeAll() (#12743)
• twisted.internet.asyncioreactor.AsyncioSelectorReactor.callLater now has the same signature as twisted.internet.interfaces.IReactorTime.callLater. twisted.internet.asyncioreactor.AsyncioSelectorReactor.callFromThread now has the same signature as twisted.internet.interfaces.IReactorFromThreads.callFromThread. (#12767)
• twisted.protocols.ftp.FTPClient now uses ip address of the original ftp server to open passive data connections by default, instead of trusting PASV responses. (#12847)

Improved Documentation

• The “Writing Servers” and “UDP Networking” documentation pages have been updated to remove obsolete references to persisting the reactor (a feature gone from Twisted for several decades now), and to better explain the factory and protocol setup and teardown lifecycle. (#5031)
• Twisted's policy documentation now includes a prominently featured, clear explanation of our AI policy: to wit, including the outputs of generative AI systems is forbidden. (#12676)

... (truncated)

Commits

• 875d118 Manual changes for release notes.
• 16efad1 Run towncrier.
• a1392e7 Run incremental.
• 44048df #12705 twisted.web HTTP/2: rate-limit stream resets to mitigate Rapid Reset (...
• 112e881 Merge branch 'trunk' into 12705-http2-rapid-reset
• 1da20ef #9101: add ability to enable SO_REUSEADDR and SO_REUSEPORT flags (#12650)
• 36729d2 Perform tuple conversion in _BaseTCPClient
• e8d1b9a Simplify if statement
• 26869f9 Merge branch 'trunk' into 9101.so_reuseaddr
• be48511 #12875 Update Python 3.15 in Github Actions + Upgrade Ubuntu for Codspeed (#...
• Additional commits viewable in compare view

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[sonarqubecloud]

Quality Gate passed

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