As you know, especially those who might take advantage of the Pangu jailbreak for 64-bit devices that have iOS 9.1 launched a couple days ago. Whenever a new jailbreak version is released, there are tweaks that have not yet been optimized for iOS 9.1. In fact, there are few packages that have been updated for version including support for that Pangu released his jailbreak. Here you will find a list of tweaks that are compatible with iOS 9.1, as well as some that are not, as in the case of Springtomize 3.
In order to view the most recent list of compatble tweaks with iOS 9.1, visit the Google Sheets spreadsheet.