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transmission Official Transmission BitTorrent client repository
© 2026 AnnounceHQ. All rights reserved.
Improved December 4, 2025
4.1.0-beta.4 Transmission 4.1.0-beta.4
This is Transmission 4.1.0-beta.4. We're not in feature freeze yet,
so this release includes some new features as well as bugfixes and
performance improvements.
What's New in 4.1.0-beta.4
Highlights
Unify RPC and settings.json strings to snake_case, backwards compatible. (#7108 )
New JSON-RPC 2.0 -compliant RPC API. (#7269 )
4.1.0-beta.4 - transmission Release Notes | AnnounceHQ
Use native icons for menus and toolbars: SF Symbols on macOS, Segoe Fluent on Windows 11, Segoe MDL2 on Windows 10, and XDG standard icon names everywhere else. (#7819 , Qt Client)
All Platforms
Added an option to verify a torrent immediately after it finishes downloading. (#4178 )
Added BEP-21 downloader count to tr_tracker_view and RPC. (#6936 )
Added peer traffic statistics to torrent-get rpc method. (#7172 )
Added bytesCompleted field to torrent-get rpc call. (#7173 )
Deprecate tcp-enabled and udp-enabled in favour of preferred_transports. (#7473 )
Added raw PeerID to RPC interface. (#7514 )
IPv4 patterns in the RPC whitelist can now match with IPv4-mapped IPv6 addresses. (#7523 )
Improved libtransmission code to use less CPU. (#7800 )
Support dual stack by manually creating and binding socket on Windows platform. (#6548 )
Generate imported targets for MbedTLS. (#7631 )
Added support for libevent 2.2.1-alpha-dev. (#7765 )
Bumped miniupnpc from 2.2.8 to 2.3.3. (#7783 )
Bumped {fmt}#7793 )
macOS Client
Fixed missing tooltips for Group rows in Torrent Table View. (#7828 )
Qt Client
Added the ability to use a custom URL path when connecting to remote Transmission servers. (#7561 )
Web Client
Implemented a context menu for file list in web app making way to rename or copy name of individual file. (#7389 )
Updated turtle for web app. (#6940 )
Added checkbox to delete data while removing torrents. (#7000 )
Gave labels to the mainwin buttons for web client. (#6985 )
transmission-remote
Added support to download sequentially from a specific piece. This can enable apps to seek within media files for streaming use cases. (#7808 , #7809 )
Fixed 4.1.0-beta.1 issue that displayed incorrect speeds when using transmission-remote -pi. (#7796 )
Everything Else
Thank You! Last but certainly not least, a big Thank You
Contributions to All Platforms:
@cdowen:
Added peer traffic statistics to torrent-get rpc method. (#7172 )
Added bytesCompleted field to torrent-get rpc call. (#7173 )
Added raw PeerID to RPC interface. (#7514 )
@G-Ray (Geoffrey Bonneville ):
Feat: allow downloading sequentially from a specific piece. (#7502 )
@Ghost-chu (Ghost_chu ):
@github-advanced-security[bot]:
@herbyuan:
Support dual stack by manually creating and binding socket on Windows platform. (#6548 )
@killemov:
@nevack (Dzmitry Neviadomski ):
@reardonia (reardonia ):
Code review. (#6936 , #7520 )
Upload_only fixes, check for partial seeds. (#7785 )
@tearfur (Yat Ho ):
Code review. (#4178 , #6548 , #7172 , #7173 , #7502 , #7514 , #7743 , #7785 , #7797 ,
@winterheart (Azamat H. Hackimov ):
Generate imported targets for MbedTLS. (#7631 )
Contributions to macOS Client:
Contributions to Qt Client:
@htmltiger:
Added the ability to use a custom URL path when connecting to remote Transmission servers. (#7561 )
Contributions to Web Client:
@killemov:
@nevack (Dzmitry Neviadomski ):
@Rukario:
Updated turtle for web app. (#6940 )
Gave labels to the mainwin buttons for web client. (#6985 )
Added checkbox to delete data while removing torrents. (#7000 )
Implemented a context menu for file list in web app making way to rename or copy name of individual file. (#7389 )
@tearfur (Yat Ho ):
Contributions to Daemon:
@tearfur (Yat Ho ):
Refactor: use new tr_variant API in daemon. (#7103 )
Contributions to transmission-remote:
@sanapci (Elek, David ):
Fixed 4.1.0-beta.1 issue that displayed incorrect speeds when using transmission-remote -pi. (#7796 )
@tearfur (Yat Ho ):
Added support to download sequentially from a specific piece. This can enable apps to seek within media files for streaming use cases. (#7808 , #7809 )
Contributions to Everything Else:
@nevack (Dzmitry Neviadomski ):
Apply Xcode 26.0 recommendations. (#7823 )
Fixed unreachable in tr_make_listen_socket_ipv6only. (#7825 )
Updated documentation. (#7826 , #7829 , #7830 , #7840 )
@niol:
Search both fmt/base.h (fmt 11+) and fmt/core.h (fmt < 11) for FMT_VERSION. (#7772 )
@tearfur (Yat Ho ):
Code review. (#7825 )
Build: bump clang tools to 20. (#7573 )
Fix: libb64 submodule branch. (#7855 )
Ci: disable fail-fast for new macOS runners. (#7857 )
Added BEP-21 downloader count to tr_tracker_view and RPC. (#6936 ) Unify RPC and settings.json strings to snake_case, backwards compatible. (#7108 ) Deprecate tcp-enabled and udp-enabled in favour of preferred_transports. (#7473 ) Fix: caching a source address doesn't imply public internet connectivity. (#7520 ) IPv4 patterns in the RPC whitelist can now match with IPv4-mapped IPv6 addresses. (#7523 ) Fix: don't bind udp sockets if no OS support. (#7552 ) Refactor: replace all evutil_make_listen_socket_ipv6only usages. (#7779 ) Refactor: torrent complete verify cleanup. (#7802 ) Refactor: overhaul tr_address special address checks. (#7818 ) Refactor: store BT peers with std::shared_ptr. (#7837 ) Perf: short circuit reset_blocks_bitfield(). (#7838 )