Under Ubuntu 11.04 (Natty Narwhal) I have been using PlayOnLinux for a while to install a variety of Windows programs (for example: Internet Explorer 7). After my upgrade from the 10.x Ubuntu series to the newest 11.04 version, I noticed that I was no longer able to install any programs within PlayOnLinux. The Ubuntu repositories offer version 3.8.8 of PlayOnLinux (at the moment of writing) resulting in the message ‘Sorry, PlayOnMac 2.5 and PlayOnLinux 3.8 are no longer supported.’ when attempting to install software. This short blog describes how you can update your PlayOnLinux version to the newest 4.x series that works correctly under Ubuntu 11.04. Read more »