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diff --git a/COMPATIBILITY b/COMPATIBILITY
index d85a5f3f..30f5daf8 100644
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@@ -13,6 +13,9 @@ Tactics
- Add Relation and Add Morphism on polymorphic relations should now be
declared with Add Parametric Relation and Add Parametric Morphism.
+- The constant [flip] is automatically unfolded in the goals generated by
+ Add Morphism (incompatibility with 8.2 beta versions).
+
- The default relation chosen by setoid_replace may differ. The
workaround is to enforce the choice of the setoid relation with the
"using relation ..." option.
@@ -48,6 +51,9 @@ Tactics
Language
+- Type Class syntax has completely since the 8.2beta versions. See the
+ documentation for the updated syntax.
+
- Constants hidding polymorphic inductive types are now polymorphic
themselves. This may exceptionally affect the naming of
introduction hypotheses if such an inductive type in Type is used on