Where to find the official Cyanogenmod release notes?

Question

Where are the official release notes for Cyanogenmod, in particular the 9.1 release? I wasn't able to find them.

Answer 1

Did you check with the official changelog site? Or the XDA thread on 9.1? The latter mentions http://cm-kang.appspot.com/anzu/ics for the changelog. And then there's this page where you even can filter changes by devices (probably the best source to check).

If you need more details: All that from page 1 of a simple Google search for cyanogenmod changelog "9.1" (<- hint! ;) )

To the first (and explicit) question: If there were any new features? That probably very much depends on your device. So using the last changelog source I mentioned, filtering by the device you want to know this about, you will be able to answer your question. As I don't know your device, I can't ;)

Answer 2

Edit: OP has rephrased his Question

A good start is also the CyanogenMod blog

For CM9.1 it's:

A new NFC payment system, SimplyTapp has been added:

Let’s try something new: CM9.1 and SimplyTapp:

Welcome to Tapp!  A near field communication (NFC) payment platform for the CyanogenMod community and powered by SimplyTapp. Founded by two CM enthusiasts, Doug and Ted, Simplytapp provides a method for evolving, securing and expanding  NFC payments.

See CyanogenMod's blog post for more info.

Answer 3

A condensed changelog containing only "notable new features" can be accessed from within Cyanogenmod via the settings menu -> about phone -> view changelog.