feature matrix - or "what is new in version XY?"

I do a fair amount of end-user PostgreSQL support and advocacy on both the mailing lists and IRC (join us in #postgresql on freenode!) and a huge number of questions and discussions involve the choice of the "right" version to start developing against or upgrade too.
The typical "you need to upgrade to the latest minor version of your release" is fairly easy to explain but the "you should look into XY because that one has a large number of improvements over YZ" tends to cause lengthy discussions.

These discussions usually start by pointing to the rather lengthy release notes which are quickly followed up by random people mentioning some of the major (in their view) improvements - be it new features or better performance - in the discussed release.
The truth however is that people are usually more focused on getting a simple and tabular overview about those differences so I started to do a tabular listing of new features and other improvements on the developer wiki about 9 months ago. This small project evolved quite a lot over the course of the next few months until Magnus concluded that this would a a nice addition to the main website and hacked up a version that would be suitable for inclusion to the main site.
Two month later (after getting a few mails on the subject already) I finally enabled the current version of the Feature Matrix on the main site for a wider audience in the hope to provide a simple site that provides both:
An impression on how fast PostgreSQL evolves and also why it is really worthwhile to upgrade to the latest & greatest major release.
I certainly recognize(and hope!) that there is room to improve(maybe I missed your favorite feature in release XY?) here but I really would like to get some feedback on what people think about this addition to the main site!