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-rw-r--r--COMPATIBILITY11
1 files changed, 10 insertions, 1 deletions
diff --git a/COMPATIBILITY b/COMPATIBILITY
index 5ba3d93d..c590d705 100644
--- a/COMPATIBILITY
+++ b/COMPATIBILITY
@@ -1,7 +1,7 @@
This version of Proof General has been tested with these Emacs versions
on Linux:
- Emacs 21.4.1 -- recommended
+ Emacs 22.1.1 -- recommended
XEmacs 21.4.XX -- stable, but not recently tested
XEmacs 21.5 (beta28) -- tested, has patches for several XEmacs bugs
@@ -14,3 +14,12 @@ and prover versions:
For more possibilities, please check and contribute here:
http://proofgeneral.inf.ed.ac.uk/wiki/Main/PGEmacsVer37Final
+
+-----
+
+Backward compatibility makes the code into a bad mess. Some compatibility
+has been removed here, specifically affecting:
+
+ Isabelle 2004
+
+ Earlier buggy versions of Emacs 21 (21.4.1 should work)