jQuery Updater was one of the very first WordPress plugin I`ve wrote, and was released in April 2011. During that time jQuery was hot.
My plugin allowed users to use an updated version of jQuery, either bugfix release or minor release not originally bundled with WP.
Nowadays jQuery`s releases are ocasionaly, with the last one 10 months ago. This means the plugin hasn`t been updated for the same time.
Also the userbase of my jQuery Updater for WordPress plugin is shrinking.
WordPress 4.9 comes standard bundled with jQuery 1.12.4
Using jQuery 2 or 3 with this version will surely cause issues with the WP bundles scripts.
This directly leads to low star ratings and bad reviews.
Several years ago I started a branch to increase the functionality and add a user interface to the plugin. By now nothing more happend to the source code than a lot of placeholders and unfinished items.
All this together with my lack of time, I`ve decided to halt further development of the plugin until further notice.
This means I will do minor patches within jQuery 3, but without significant changes to the plugin other than updates.