Here is how you can install Cydia beta for iOS 10 jailbreak from Luca Todesco. Last week Jay Freeman, known as Saurik, has released a new build of Cydia. Coming in at 1.1.28 version, this new build is marked as a beta and developed for use with iOS 10 Yalu jailbreak, that was launched almost two weeks ago. With this new release, Saurik is attempting to bring that full required compatibility to devices running iOS 10.1.x. More importantly, it also brings in 64-bit support.
Since jailbreak for iOS 10 devices was released many users reported about various issues with the package installer that hacked their jailbroken devices. These ranged from messages warning that the program was 32-bit and might slow down their phones, to the inability to grab anything within the Cydia interface. So this should go some way to solving the pair of problems mentioned above.
If you are brave enough, and want to try out the latest version of Cydia as a beta install for iOS 10 on your jailbroken device, please follow the steps below.
How To Install Cydia Beta For iOS 10 Jailbreak
Step 1) In order to install Cydia beta for iOS 10 jailbreak launch the Cydia app on your jailbroken iPhone.
Step 2) On the “Sources” tab, add this source to Cydia: http://apt.saurik.com/beta/cydia-arm64/ . Once done hit the Add button to add the repo to Cydia.
Step 3) Once the new source has been added, Cydia refreshes. Now you should see three new available upgrades in the Changes tab labeled as “Cydia Installer”, “Debian Package” and “Tape Archive”.
Step 4) Lastly in the top right corner of the Changes tab click on the Upgrade button and install the available upgrades. Wait till the installation will be finished. After that respring your device.
The Cydia beta 3 should now be installed on your iOS 10 device. Hope this build will fix issues users encountered on their jailbroken device.