Transmission 1.73

Transmission 1.73 is a powerful tool designed for a BitTorrent client on the Mac, being both extremely lightweight (some users even manage to run the Ubuntu version on their cell phones!) and fairly feature-packed. Transmission's interface is very easy to use--and easy on the eyes--and this open-source app provides a whole host of clever features and flexible settings, especially when it comes to managing your bandwidth.

Transmission lets you queue downloads, set "Speed Limits" for certain times of day, stop seeding when you've met a specified ratio, and more--all with live download stats viewable directly in the dock, along with support for Growl notifications. As if all of that weren't appealing enough, Transmission is also free, making it a very attractive option for anyone who works with torrents.

Major Features:

1. Easy. Transmission is designed from the ground up to balance power with simplicity. When Ubuntu chose Transmission as its default BitTorrent client, one of the most-cited reasons was its easy learning curve.
2. Lean. With few dependencies and written in C, Transmission uses less memory than any other BitTorrent client. It's also the client of choice on low-memory hardware. Imageshack chose Transmission for its BitTorrent farms because the competition "requires amounts of memory several times greater than Transmission". As seedboxhosting.com says, "Bottom line: use Transmission if possible."
3. Native. Unlike some cross-platform programs, Transmission seamlessly integrates with your operating system. The Mac OS X interface is written in Objective-C and uses Growl notifications and dock badging to keep you informed. The GTK+ interface has been carefully written with the GNOME Human Interface Guidelines in mind. It uses libnotify for torrent notification, DBUS for hibernation management, and GIO for watch directories.
4. Powerful. Transmission has the features you expect in a BitTorrent client: encryption, a web-based interface, peer exchange, PeerGuardian-style peer blocklists, UPnP and NAT-PMP port forwarding, web seed support, watch directories, off-hour speed limit scheduling, tracker editing, global and per-torrent speed limits, and more.
5. Free. Transmission is free software. All its code is freely available online and is licensed under either the GNU Public License v2 or the MIT License. The development team welcomes anyone who is interested in contributing code, documentation, translations, or other help.

Enhancements:

1. All Platforms
   • Fix bug where user-configured peer limits could be exceeded
   • Use less memory in some high-peer situations
   • Better estimation of time left to download
   • Support supportcrypto and requirecrypto flags in http tracker announces
   • Update to newer snapshots of libnatpmp and miniupnpc
   • Make DHT a compile-time option
2. GTK+
   • Use GDK-safe versions of g_idle_add() and g_timeout_add
   • Save some space in GTK+ >= 2.16.0 by not building SexyIconEntry
3. Qt
   • Fix bug that crashed Qt client when setting alternative up/down speeds
4. Daemon
   • Add umask support
5. Web Client
   • Inspector and Add Torrent buttons for iPhone/iPod Touch
   • Add location field to inspector
6. CLI
   • Some torrent files created with transmission-cli were invalid