* "git merge-tree" learned to take strategy backend specific options
via the "-X" option, like "git merge" does.
+ * "git log" and friends learned "--dd" that is a short-hand for
+ "--diff-merges=first-parent -p".
+
Performance, Internal Implementation, Development Support etc.
reduce the number of lstat() system calls.
(merge 2cdb796101 vd/loose-ref-iteration-optimization later to maint).
+ * The codepaths that read "chunk" formatted files have been corrected
+ to pay attention to the chunk size and notice broken files.
+
Fixes since v2.42
-----------------
not auto-initialize the decoration subsystem, which has been
corrected.
+ * Feeding "git stash store" with a random commit that was not created
+ by "git stash create" now errors out.
+ (merge d9b6634589 jc/fail-stash-to-store-non-stash later to maint).
+
+ * The index file has room only for lower 32-bit of the file size in
+ the cached stat information, which means cached stat information
+ will have 0 in its sd_size member for a file whose size is multiple
+ of 4GiB. This is mistaken for a racily clean path. Avoid it by
+ storing a bogus sd_size value instead for such files.
+ (merge 5143ac07b1 bc/racy-4gb-files later to maint).
+
* Other code cleanup, docfix, build fix, etc.
(merge fd3ba590d8 ws/git-push-doc-grammofix later to maint).
(merge 5f33a843de ds/upload-pack-error-sequence-fix later to maint).