[grsec] Updates for 2.6.32.27 patches, what are they about?

[grsecurity at continuity.cjb.net]

Hi!

Apparently there have been a number of updates for the 2.6.32.27 grsec 
patch (I think I saw three updates in the RSS feed). Is there a changelog 
somewhere? Currently, I am not able to figure out whether I should 
recompile with the newer patches or not since I do not know what exactly 
was fixed in these versions (security issue or just cosmetical stuff?).

As an incentive, I offer 50 Euros for adding a short comment to the RSS 
feed in the future that gives an idea of whether security concerned people 
should upgrade or not (best would be something like "users of version X 
and before must upgrade").

Regards