We skipped the 1.0.12 release for Linux, but 1.0.13 is now out. It contains the following Linux-specific fixes (in addition to all the other platform-neutral changes in 1.0.12 and 1.0.13):
With DBus, we now support asking Spotify for the currently playing track and its associated metadata. However, there are some slight differences between the 0.9.x client and the 1.x client, which are as follows:
Regarding the CEF update (which is actually common to all platforms), this should fix GPU acceleration settings on some machines. If you're having trouble with GPU rendering, check out the comments in the 1.0.11 thread for some suggestions for possible solutions. Again, GPU acceleration settings are *very* machine/driver independent on Linux, so you might hunt around a bit for the right combination of Chromium flags. We're working to improve this.
Edit: We have just released a patch update, 1.0.13.112. This resolves the missing "Add to queue" option.