[15] It does not support directly subscribing to RSS feeds containing torrent files for automatic download, but third-party add-ons can supply this functionality.

[10]: 229 macOS-specific features include Dock and Growl notifications, automatic updates using Sparkle and Universal Binary (up until version 2.22).

Transmission 4.0.0, released in February 2023, added support for version 2 of the BitTorrent protocol while maintaining backward compatibility with the older v1 torrents.

Although it is possible to compile later versions from source, either by downloading from the project's website[17] or using a package manager like Fink or MacPorts, it is unsupported and any bugs specific to 10.4 will not be fixed.

Starting with Transmission 2.30[18] an Apple Mac with an Intel CPU is needed; PowerPC-based systems are no longer supported natively.

Older versions have been ported to form the basis of the update system for the video game Metal Gear Online on PlayStation 3,[20][21] as well as the backend for ImageShack's BitTorrent service.

[23] In November 2010, iTransmission, another unofficial port, was released for jailbroken iPhones sporting a GUI that is capable of downloading directly to the device over WiFi or 3G.

In March 2016, Palo Alto Networks reported that Transmission's official website was compromised and tainted .dmg files were uploaded to the site, using an Apple Developer signature to bypass the OS X gatekeeper feature.

Transmission is the default BitTorrent client of many Unix and Linux distributions,[38] including Ubuntu,[39] Mint,[40] Fedora,[41] Puppy,[42] Zenwalk,[43] and the GNOME flavor of openSUSE.