X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/c566dd90401a8b20b873644e3cdab175f1e86ede..d690cbdcc1eae1eb60e83caf6800f768b733dadd:/src/README.UPDATING

diff --git a/src/README.UPDATING b/src/README.UPDATING
index fadf59aa9..8a0533b10 100644
--- a/src/README.UPDATING
+++ b/src/README.UPDATING
@@ -35,6 +35,13 @@ Exim version 4.77
    problem.  Prior to this release, supported values were "TLS1" and "SSL3",
    so you should be able to update configuration prior to update.
 
+ * The match_<type>{string1}{string2} expansion conditions no longer subject
+   string2 to string expansion, unless Exim was built with the new
+   "EXPAND_LISTMATCH_RHS" option.  Too many people have inadvertently created
+   insecure configurations that way.  If you need the functionality and turn on
+   that build option, please let the developers know, and know why, so we can
+   try to provide a safer mechanism for you.
+
 
 Exim version 4.74
 -----------------