SMPlayer 0.6.3 has been released.

Most important changes since 0.6.2:

* Added a fix for a black screen problem when using Compiz.
* Added an option to select the number of threads that mplayer will use for decoding (only works for MPEG-1/2 and some H.264 videos).
* Added the possibility to disable the audio equalizer. Seems to be necessary to use the S/PDIF output.
* Added some options to increase/decrease the speed by 1% and 4%. This allows to play 24 fps movies at 25 fps speed and vice versa.
* Fix: sometimes the playlist is not shown. Added a workaround for the problem.
* Added some checks to avoid crashes when selecting subtitle tracks.
* The settings in smplayer.ini have been reorganized in several sections. (This also means most of your preferences will be lost and you will have to reconfigure smplayer again).
* Added an option to mirror the video. And now it's also possible to flip and rotate the subtitles along with the image.
* Added a new shortcut set (sda.keys) which can be loaded in the shortcut editor in preferences.
* Added two new translations: Arabic and Kurdish.

(full changelog)

There are packages for 64 and 32 bits: 0.6.3 packages (compiled on ubuntu hardy)

There are also available updated packages for smplayer-themes and smplayer-themes-nonfree.

I also highly recommend to use a recent mplayer from svn instead of the old 1.0rc2. You can find here updated packages for ubuntu hardy.