we are currently still on HDP 2.3.6 and waiting for the first 2.5 minor to update. Is there a scheduled release plan (more or less)? I mean, are we speaking of days, weeks or months? I wouldn't like to rush a 2.5.0 update and the 2 weeks after have to upgrade again to 2.5.1.
HDP 188.8.131.52 is out now. Why the skip? Well, HDP 2.5.2 and HDP 2.5.1 were releases to Azure for HDInsight. See the Hortonworks doc pages for details. Just came out today with Ambari 2.4.2.