From 32e18eb2ec0d44e4265f44d2f3f51daa7d67e9c0 Mon Sep 17 00:00:00 2001
From: herbelin
Date: Sat, 18 Jun 2011 20:35:32 +0000
Subject: Relaxed the constraint introduced in r14190 that froze the existing
 evars when rewriting. Use it for autorewrite and subst. Accept evars
 instantiation in multi_rewrite so that rewrite alone remains compatible (it
 is used in contribs, e.g. Godel, in places where it does not seem absurd to
 allow it), but there are no good reason for it. Comments welcome. + addition
 of some tests for rewriting (one being related to commit 14217)

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14222 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 CHANGES | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'CHANGES')

diff --git a/CHANGES b/CHANGES
index 10b0f09cf0..90d8b604f1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -36,6 +36,8 @@ Tactics
 - Unification in "apply" supports unification of patterns of the form
   ?f x y = g(x,y) (compatibility ensured by using
   "Unset Tactic Pattern Unification").
+- Tactic autorewrite does no longer instantiate pre-existing
+  existential variables (theoretical source of possible incompatibility).
 
 Vernacular commands
 
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