Yes, XKit is being updated often. And the Update Manager on XKit 5.0/5.1 displays a message every time it updates a part of XKit.

I’ve been reading posts and getting messages on how this can be an annoyance to some, so I’ve disabled those messages.

You should get the updates version in a few hours. If you do not, or wish to update now (recommended), please follow the following steps:

1. Click on the X icon on your dashboard
2. Click on Advanced Settings
3. Click on View / Edit Internal Packages
4. Click on xkit_update_manager
5. Click on Re-install / Manually Update this Extension

Thank you for using XKit.