Asus has released another update for their original Transformer tablet, the Asus Transformer TF101, the update is available to TF101 owners who have already updated to the Android 4,0 update.
The latest update brings some new features as well as some bug fixes, and you can see full details of what is new in the 9.2.1.21 update for the Transformer TF101 below.
Improves system stability
Improves email stability
Improves AppBackup App
Improves MyLibrary stability
Supports Wi-Fi Direct
Supports unzip in File Manager
Add restore tab function in Browser
The update started rolling out yesterday and you can get the update by going to settings > about tablet > check for updates on your Asus Transformer TF101 tablet.
Source Android Community