Changelog entry for redis cluster MOVED handling

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 0b8e516589efa2cc71cbb51cced2fb984dacee86..060a4ffe428280281bece7c063e4fbf65fdcb3b0 100644 (file)
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -8,6 +8,13 @@ options, and new features, see the NewStuff file next to this ChangeLog.
 Since Exim version 4.90
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+GF/01 DEFER rather than ERROR on redis cluster MOVED response.
+     When redis_servers is set to a list of > 1 element, and the Redis servers
+     in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
+     case of MOVED into a DEFER case instead, thus moving the query onto the
+     next server in the list. For a cluster of N elements, all N servers must
+     be defined in redis_servers.
+
 JH/01 Replace the store_release() internal interface with store_newblock(),
       which internalises the check required to safely use the old one, plus
       the allocate and data copy operations duplicated in both (!) of the