The fifteenth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/RelNotes/2.38.0.txt

@@ -54,6 +54,10 @@ UI, Workflows & Features
    "human" to show the reported value in human-readable format, like
    "3.40MiB".
 
+ * The "diagnose" feature to create a zip archive for diagnostic
+   material has been lifted from "scalar" and made into a feature of
+   "git bugreport".
+
 
 Performance, Internal Implementation, Development Support etc.
 
@@ -115,6 +119,9 @@ Performance, Internal Implementation, Development Support etc.
 
  * The "bundle URI" design gets documented.
 
+ * The common ancestor negotiation exchange during a "git fetch"
+   session now leaves trace log.
+
 
 Fixes since v2.37
 -----------------
@@ -263,6 +270,15 @@ Fixes since v2.37
    commands.
    (merge b15207b8cf vd/sparse-reset-checkout-fixes later to maint).
 
+ * An earlier optimization discarded a tree-object buffer that is
+   still in use, which has been corrected.
+   (merge 1490d7d82d jk/is-promisor-object-keep-tree-in-use later to maint).
+
+ * Fix deadlocks between main Git process and subprocess spawned via
+   the pipe_command() API, that can kill "git add -p" that was
+   reimplemented in C recently.
+   (merge 716c1f649e jk/pipe-command-nonblock later to maint).
+
  * Other code cleanup, docfix, build fix, etc.
    (merge 94955d576b gc/git-reflog-doc-markup later to maint).
    (merge efae7ce692 po/doc-add-renormalize later to maint).