Nothing much to be happy about, but Notcom has added small updates to the earlier version of TinyUmbrella and has released version 4.21.11. To resolve the bandwidth usage problem, he has resized the earlier TinyUmbrella version which could be used to save iOS 4.2.1 SHSH blobs and hence released TinyUmbrella 4.21.11 for Windows and Mac OS X.

Download TinyUmbrella 4.21.11

This is what he said in his blog :

I just pushed a smaller, trimmed-down version of TinyUmbrella. This change had to take precedence over the other things I was working on for TinyUmbrella because the bandwidth usage was insane. Now that this is out of the way, I can go back to the 4.2.1 recovery kick out issue. Have a great weekend folks!

Download TinyUmbrella 4.21.11 from here