I have a comment. Looking at the change log I don't see any wireless fixes. We have a routerboard that was running 2.9beta19 setup up as an ap-bridge using the atheros AR5213 card. All customers have 26db "SNR"(We used a spectrum analyzer on the sector to get the noise level) or better on this AP. Customer will associate and then disconnect after a couple seconds and we get this error:
00:27:24 wireless,info W2: disconnected 0:2:6f:8:a4:c1, extensive data loss
Using a Wrapboard loaded with 2.9beta19 does the same thing. Downgrading the software to 2.8.27with the same wireless setup, no more disconnects. Also on our routerboards running 2.9beta18, it did not see our prism cards. NL-2511MP +
My feeling is you have some more bugs to work out before a final release!!!!!