Document match_*/inlist changes (before coding starts)

[exim.git] / src / README.UPDATING

diff --git a/src/README.UPDATING b/src/README.UPDATING
index 40210a80011a27222325e24e71dfe920a8e4d374..20313b2cbdd9e44bc85030dfb61ea816c9e82daa 100644 (file)
--- a/src/README.UPDATING
+++ b/src/README.UPDATING
@@ -1,5 +1,3 @@
-$Cambridge: exim/src/README.UPDATING,v 1.17 2009/10/16 07:35:42 tom Exp $
-
 This document contains detailed information about incompatibilities that might
 be encountered when upgrading from one release of Exim to another. The
 information is in reverse order of release numbers. Mostly these are relatively
@@ -28,13 +26,31 @@ The rest of this document contains information about changes in 4.xx releases
 that might affect a running system.
 
 
+Exim version 4.77
+-----------------
+
+ * 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
 -----------------
 
- * No incompatible changes within Exim itself, but the integrated support for
-   dynamically loadable lookup modules has an ABI change from the modules
-   supported by some OS vendors through an unofficial patch. Don't try to
-   mix & match.
+ * The integrated support for dynamically loadable lookup modules has an ABI
+   change from the modules supported by some OS vendors through an unofficial
+   patch. Don't try to mix & match.
+
+ * Some parts of the build system are now beginning to assume that the host
+   environment is POSIX. If you're building on a system where POSIX tools are
+   not the default, you might have an easier time if you switch to the POSIX
+   tools.  Feel free to report non-POSIX issues as a request for a feature
+   enhancement, but if the POSIX variants are available then the fix will
+   probably just involve some coercion.  See the README instructions for
+   building on such hosts.
 
 
 Exim version 4.73
@@ -62,7 +78,7 @@ Exim version 4.73
       the Exim run-time user may safely pass without dropping privileges.
       Because changes to this involve a recompile, this is not the recommended
       approach but may ease transition.  The values of the macros, when
-      overriden, are constrained to match this regex: ^[A-Za-z0-9_/.-]*$
+      overridden, are constrained to match this regex: ^[A-Za-z0-9_/.-]*$
 
  * The system_filter_user option now defaults to the Exim run-time user,
    rather than root.  You can still set it explicitly to root and this