Update Changes

Author: johnhaddon

Changes

@@ -1,6 +1,11 @@
 10.4.x.x (relative to 10.4.9.0)
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+Fixes
+-----
+
+- USDScene : Fixed hash clashes when the same USD file containing instanceable prims was opened a second time. Because USD doesn't assign prototypes deterministically, hashes would be shuffled between prototypes, yielding inconsistencies between the hashes for the two scenes. Hashes are now completely unique from scene-to-scene, so no locations can have clashing hashes.
+
 10.4.9.0 (relative to 10.4.8.0)
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