Maya build versions? Trying to track down a bugFix

The animators here have noticed that since we switched to 2013sp1 the way the animLayers accumulate rotations is different and incorrect. It looks like there was a fix in 2013EXT1

MAYA-11175 Correctly blend quaternion rotations in animation layers

and another one in EXT2:

MAYA‐16179 RotateOrder set to incorrect value when added to animation layer

but I can’t find any hint of these fixes in the service pack documentation. I know EXT2 is binary incompatible so is out for use, but is EXT1 the same or was that still compatible with 2013. I can’t remember the order these things were released, was SP2 after EXT1 and therefore should have thee fixes in the docs, but again, no mention of them. Anybody shed any light on this for us

Also if anybody has these builds installed could you do me a favor and run about -api on them so I can figure the api version numbers and add them to the Red9 Maya version tracking doc.

cheers

Mark

2013 SP2 about api: 201303