I read the notice and hoped I understood it correctly. I understood it to mean that KB3136000 v2 contained new files that would also patch LDR customers and continue to patch GDR customers, updating each system accordingly. In effect they added LDR support to the same update rather than release a new update which might only confuse usersIf you read the Knowledge Base article there is a Notice regarding the update.Will update the releases as there was also an update change to Windows 8.1 .NET 4.6.1, this will be updated later today or at latest tomorrow.Notice
May 10, 2016 This security update has been re-released and contains updated files. This re-release is intended for LDR (limited distribution release) content customers only. We determined that there were some issues in certain printing scenarios because of a missing dependency. If you use LDR content, we recommend that you apply this updated security update. There are no changes in this re-release for GDR (general distribution release) content customers.
It could also mean that this is only for LDR customers, and GDR customers should have patched while the previous update was available
To self It would be interesting to compare the contents of both updates to see if the old content is still there, sorry, just being a bit geeky.