Adobe updated the Linux Flash 10 Beta to an RC last week. Since I was on vacation, it took me a while to update the .deb in my PPA. Fortunately Adobe changes it's archive name with every new release, so the old package was still working when installed.

Have a look at the new features and the list of fixed bugs of this release.

I updated my Personal Package Archive (PPA) accordingly. If you already added my PPA to your sources list, you'll get the updated flashplugin-nonfreebeta within the next upgrade.

There are still issues with flash sites using the "windowless mode". This seems to be an Firefox issues, which isn't fixed on Ubuntu Hardy's Firefox right now (and most probably won't get fixed before Firefox 3.1). You might want to disable the "windowless" mode via a small configuration file.

Update:

I reported two bugs to the Adobe bug tracker system. Additional to that, you might experience problems with Ubuntu x64, due to the newly introduced dependencies. If you got problems running the RC on Ubuntu x32, please try installing libnss and libcurl and give me a short notice. I don't have a "fresh" Ubuntu right now, to test the dependencies.