Adobe Flash player 10.2 beta has released with a number of enhancements, including Stage Video, a new API that delivers best-in-class, high performance video playback across platforms. The beta also includes Internet Explorer 9 hardware acceleration support previewed earlier (in Flash Player “Square”), enhanced text rendering, and two popular requests from the community: a native custom mouse cursors API and support for full screen playback with multiple monitors.

More about the new release, read about release document

Adobe Flash player 10.2 beta can’t be available from Ubuntu official repository, here’s only manual way to try this beta in Ubuntu 32-bit.

1. Download the flashplayer 10.2 beta for Linux (.tar.gz) from this page

2. Extract the downloaded file, and replace /usr/lib/flashplugin-installer/ . Use following command to do it:

tar zxvf flashplayer10_2_p2_32bit_linux_111710.tar.gz
sudo cp /usr/lib/flashplugin-installer/

3. For Firefox and Opera, it’s done! For Google Chrome browser, need to disable the default built-in flashplayer.
Restart Chrome browser, then type about:plugins in address bar. Then disable this in below picture:

Now, check your flash player version