Puppy Linux 4.2 is a major release of the distribution, bringing many new changes and improvements. First, there are now two window managers for you to choose from: JWM and IceWM, with extra themes for each included. Next, the Puppy Linux team has updated SeaMonkey, the default web browser, to version 1.1.15; AbiWord, word processor, to version 2.6.6; Gnumeric, spreadsheet application, to version 1.8.4; HomeBank, personal accounting software, to version 4.0.2; Osmo, personal organizer, to version 0.20; and many other software updates.

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Along with the updated software, Puppy Linux 4.2, brings you the addition of desktop widgets. This will be one of the first things you notice when upgrading from Puppy Linux 4.1 to Puppy Linux 4.2, they are right on the default desktop, and a very nice addition to this release. At a glance, these widgets give you access to the weather, battery, wireless, calender, RSS feed, and a picture slideshow, with the ability to add other widgets in the future.
On the multimedia side of things, Puppy Linux 4.2, comes with two players; AlsaPlayer and Pmusic; Another highlight is the addition of Streamtuner, allowing you to stream Internet radio right from within Puppy Linux; and Gxine, finally, has full-screen video playback!
Other things to note in Puppy Linux 4.2 are it’s improved CUPS support (printing), enhanced boot-up and shutdown procedures, and the addition of more games.