Jay Freeman, a.k.a. Saurik has updated Cydia to version 1.1. This is a major update to Cydia. This version is slimmer, faster and more stable than the earlier version. Support to multi-tasking has been made much better. This helps to run the application in background. It means that you can now resume from the same place exactly where you left off.
Also, speed has most definitely been improved in the app and it is now far quicker at loading as well as checking updates and searching. A new search algorithm has been implemented, which includes “an integer-arithmetic radix-sorted relevancy algorithm” which is quite better.
There is, however, no change to the UI.
I suppose the Update will be available for all the iDevices.
The “upgrade” will be offered to you when you will launch Cydia. You’ll require 3G/Wi-fi to get the update. It is not yet confirmed whether Cydia 1.1 works on iOS 4.3.1 or not.
Those who are not getting this Cydia upgrade can install manually from here (.deb) using iFile or via SSH.