update changelog

h2/src/docsrc/html/changelog.html

@@ -18,7 +18,8 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>ALTER TABLE ADD can now add more than one column at a time.
+<ul><li>Display transaction start time in JXM listSessions() operation. Useful for debugging long-running transactions.
+</li><li>ALTER TABLE ADD can now add more than one column at a time.
 </li><li>Issue 380: ALTER TABLE ADD FOREIGN KEY with an explicit index didn't verify
     the index can be used, which would lead to a NullPointerException later on.
 </li><li>The wrong kind of exception (NullPointerException) was thrown in a UNION query