Does Linux Kernel 3.5 have the improvement from 3.3?

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http://unix.stackexchange.com – Some weeks ago I updated to Linux kernel version 3.3 because Radeon Audio HDMI wasn't working on my laptop. The issue was fixed with the upgrade to version 3.3 (Though Suspend still doesn't work) I recently changed distributions, switching from Ubuntu to Mint and when I wanted to update to 3.3 I saw that 3.5 was out too(i'm not really kernel-aware). But after updating, my Radeon HDMI Audio stopped working again. So my question is: for me in logical order kernel 3.5 should have improvements from 3.3, except if it's a completely different branch which I don't know about. So why did it break m (HowTos)