For me it’s now enough to know how it works:
I edited (checked) the following files:
\userdata\etc\ version.properties
\userdata\etc\ org.ops4j.pax.url.mvn.cfg
\userdata\config\org\ops4j\pax\url\ mvn.config
I checked if there are the following (correct) entries:
version.properties
online-repo : https://openhab.jfrog.io/openhab/online-repo-snapshot/2.1
org.ops4j.pax.url.mvn.cfg
org.ops4j.pax.url.mvn.repositories = https://openhab.jfrog.io/openhab/online-repo-snapshot/2.1@id=openhab@snapshots
mvn.config
org.ops4j.pax.url.mvn.repositories="https://openhab.jfrog.io/openhab/online-repo-snapshot/2.1@id\=openhab@snapshots"
Then I uninstall my binging(s) that should be updated via PaperUI
or I remove them from \conf\services\ addons.cfg
Then I go to the following folder:
\userdata\tmp\mvn\org\openhab\binding and delete the corresponding folder of the binding, eg:
org.openhab.binding.harmonyhub
Then I put the entry back to \conf\services\ addons.cfg
or install it via PaperUI again.
Then the newest available version of the binding will be downloaded from above Online-Repo.
Ready! 