New binding version for OpenHAB 2.5.x:
BETA 4 is now available for download:
https://github.com/themillhousegroup/openhab2-addons/releases/download/BROADLINK_2.5.BETA_04/org.openhab.binding.broadlink-2.5.1-SNAPSHOT.jar
This includes support for all (known) variants of the RM4 remote blaster - namely the RM4 Pro, RM4b, RM4c and RM4 Mini (really Broadlink, really?)
As usual please let me know if you encounter any issues.
Cheers,
John