diff --git a/HISTORY b/HISTORY
index afaab6d589621aea28a8ff58edc41892cbb60211..b9ef18b4f36866aed88f40ef7118f55dced53c83 100644
--- a/HISTORY
+++ b/HISTORY
@@ -36,7 +36,8 @@ Migration to 7.1
    A dump/restore using pg_dump is required for those wishing to migrate
    data from any previous release.  One significant change is that
    SELECT ... LIMIT 10,20 now uses the 10 as the OFFSET and the 20 as
-   the LIMIT.  Previous versions had this reversed.
+   the LIMIT.  Previous versions had this reversed.  This change was
+   made for MySQL compatibility.