+ * Recent "git rebase -i" update started to write bogusly formatted
+ author-script, with a matching broken reading code. These are
+ fixed.
+
+ * Recent addition of "directory rename" heuristics to the
+ merge-recursive backend makes the command susceptible to false
+ positives and false negatives. In the context of "git am -3",
+ which does not know about surrounding unmodified paths and thus
+ cannot inform the merge machinery about the full trees involved,
+ this risk is particularly severe. As such, the heuristic is
+ disabled for "git am -3" to keep the machinery "more stupid but
+ predictable".
+
+ * "git merge-base" in 2.19-rc1 has performance regression when the
+ (experimental) commit-graph feature is in use, which has been
+ mitigated.
+