Do you mean WP 5.4.2? Still works for me.
Does the plugin show up for you in the editor if you click the 3 dots in the top right corner? https://i.imgur.com/ThO1ln5.png
Any errors in the console?
Anyway, if there is a 5.4.3 release I doubt it would break the plugin, how ever I did push an update to fix a warning with 5.5 Beta 3.
I still keep getting the Update warning at the top of the screen
Or do you mean you’re getting the message “There is an autosave of this post that is more recent than the version below.” or “The backup of this post in your browser is different from the version below.” when you open the editor? This plugin doesn’t dismiss these messages, but they should go away once you save. Nor does this plugin prevent keeping a backup of the edited post in the browser storage if you navigate away without saving. It just prevents making the autosave XHR requests every 10 seconds that disable the Publish/Update button.
