Transmission, the default BitTorrent client for Ubuntu, released new 4.1.1 version hours ago.

This is the first maintenance update that includes 20+ fixes for the bugs found in the last 4.1.0 version and some performance improvements. And, all users are encouraged to upgrade to this version.

First, this version fixed some crashes issues found in the last release. They include crashes when parsing a .torrent file with a bad pieces key, when editing tracker list immediately after pausing torrent, and crash on arm32 by switching crc32 libraries to Mark Madler’s crcany.

It also fixed “assertion failed: no timezone” error on OpenSolaris, “Illegal byte sequence” error due to invalid UTF-8, and wrong mime-type icon for mp4 video files.

For the GTK client designed for GNOME, Cinnamon, XFCE, etc desktop environment, it fixed broken keyboard shortcut for GTK3 build, not translatable menu entries, encryption mode always “Allowed” in Preferences dialog.

It as well fixed the issue that it cannot add magnet links from either “Add URL” dialog or command line, potential crash when removing some torrents, a assertion failure, and not able to install both GTK and Qt version side-by-side in Arch Linux.

For Qt version, the long-standing bug that wouldn’t let file:/// URIs be added from the command line has been finally fixed. It also fixed the RPC error response arguments were not handled issue, and, broken icons in the torrent list on Windows.

And, the macOS client fixed the crash when removing a torrent that is being shown in the inspector, crash on “Rename File …” at the end of the download, and crash after failing to delete a torrent.

There are as well few changes to the WebUI. It reverted the change that merged the “Remove torrent” and “Trash torrent” confirmation dialogs into a single dialog, and, fixed “Connection failed” popup when opening the “Open torrent” dialog while the current download directory path was invalid.

Transmission Web UI

Besides bug-fixes, Transmission 4.1.1 changed the network traffic algorithm to spread bandwidth more evenly amongst peers, and, improved laggy user interface when bandwidth usage is high. And, for macOS it improved responsiveness when scrolling the torrent list with keyboard navigation.

For more about the new version, see the official release note in Github.

Get Transmission 4.1.1

Transmission provides official packages for Windows and macOS, as well as the source tarball, which are available to download via the link below:

For Linux, besides building from source code, Arch Linux has made the new release into official Extra repository. And, others may try the community maintained packages:

• Flatpak package that can be installed in Fedora Gnome Software, Linux Mint Software Manager, and most other Linux manually.
• snap package available in Ubuntu App Center (or Ubuntu Software).
• Ubuntu PPA with native .deb package for Ubuntu 22.04, Ubuntu 24.04, and Ubuntu 25.10.
  To add the PPA and install Transmission 4.1.1, open terminal (Ctrl+Alt+T) and run commands below one by one:

  sudo add-apt-repository ppa:ubuntuhandbook1/transmission

  sudo apt update

  sudo apt install transmission

  Optionally, install transmission-cli for command line use, or transmission-daemon for running in background for server use.