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-rw-r--r--CHANGES.md7
1 files changed, 7 insertions, 0 deletions
diff --git a/CHANGES.md b/CHANGES.md
index c309002beb..e02de0224e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -48,6 +48,13 @@ Kernel
- Added primitive integers
+- Unfolding heuristic in termination checking made more complete.
+ In particular Coq is now more aggressive in unfolding constants
+ when it looks for a iota redex. Performance regression may occur
+ in Fixpoint declarations without an explicit {struct} annotation,
+ since guessing the decreasing argument can now be more expensive.
+ (PR #9602)
+
Notations
- New command `Declare Scope` to explicitly declare a scope name