2.5.1 has newer bindings, mainly and a way of updating addons without updating OH core which will remain at 2.5.0. I think 2.5.1 was released about 2 weeks ago.
Dear community,
As mentioned earlier this year , we are doing small patch releases for openHAB 2.5.
As a first one, we have just shipped 2.5.1 - please find its release notes here .
If you are not impacted by any of the listed changes, there is no urgency to update.
It is important to note, though, that this is the last 2.5.x distro release and future patches will only be made for the add-ons. In order to benefit from future add-on patches, you will need the 2.5.1 distro as you are otherwise s…