On 9/22/2014 6:24 AM, Bernd Fehling wrote: > This confuses me a bit, aren't we already at 4.10.0? > > But CHANGES.txt of 4.10.0 doesn't know anything about 4.9.1. > > Is this an interim version or something about backward compatibility?
It's a bugfix release, fixing some showstopper bugs in a recent release that is critical to the RM (Michael McCandless) and/or an organization where he has influence or liability. Apparently this was a more expedient path than completely validating a 4.10 upgrade and waiting for the 4.10.1 bugfix release. Validating the 4.10 upgrade probably would have taken considerably longer than simply backporting some critical fixes to the 4.9 release that they're actually using. The two bug fixes for Solr are a license issue and a security vulnerability. The bugfix list for Lucene includes fixes for some major problems that can cause index corruption or incorrect operation. I had thought that the CHANGES.txt list would remain the same for trunk and the stable branch because some of those bugfixes skipped the 4.10.0 release, but it looks like that's not the case for LUCENE-5919 (the only one that I actually investigated). If these issues all got updated to the 4.9.1 section of CHANGES.txt in places other than the 4.9 branch and the 4.9.1 tag, there might be a small amount of confusion in the distant future. That confusion would be cleared up by looking at CHANGES.txt for the 4.10.0 release, though. Looks like the 4.10.1 release has been delayed a little. I hope that this collection of fixes makes it in there too, so that 4.10.0 is the only release where that confusion might impact users. Thanks, Shawn
