Can't find MQTT Action/1.X MQTT

[rossko57]

The remote repository has changed.
See

openHAB 2.5.x and the sunset of Bintray

All, The sunset of Bintray on May 1st caused existing openHAB 2.5.x installations to no longer be able to download add-ons from the remote repository (because this was actually Bintray). The original plan was to move this content to another place and offer a seamless switch for the users, but unfortunately this turned out to be more complicated than thought, so that it didn’t work out - at least until now. There are two options to fix the problem, though: Use the offline version of the add-…

and

1.X bindings not shown

You’ll be aware that in the four years since this thread was updated, much has changed, especially remote repos. I think you need openhab-addons-legacy.kar as well? It always used to be separate.