* The tests that involve running httpd leaked the system-wide
configuration in /etc/gitconfig to the tested environment.
+ * "index-pack --keep=<msg>" was broken since v2.1.0 timeframe.
+
+ * "git config --get-urlmatch", unlike other variants of the "git
+ config --get" family, did not signal error with its exit status
+ when there was no matching configuration.
+
+ * The "--local-env-vars" and "--resolve-git-dir" options of "git
+ rev-parse" failed to work outside a repository when the command's
+ option parsing was rewritten in 1.8.5 era.
+
+ * Fetching of history by naming a commit object name directly didn't
+ work across remote-curl transport.
+
+ * A small memory leak in an error codepath has been plugged in xdiff
+ code.
+
+ * strbuf_getwholeline() did not NUL-terminate the buffer on certain
+ corner cases in its error codepath.
+
+ * The startup_info data, which records if we are working inside a
+ repository (among other things), are now uniformly available to Git
+ subcommand implementations, and Git avoids attempting to touch
+ references when we are not in a repository.
+
+ * "git mergetool" did not work well with conflicts that both sides
+ deleted.
+
+ * "git send-email" had trouble parsing alias file in mailrc format
+ when lines in it had trailing whitespaces on them.
+
+ * When "git merge --squash" stopped due to conflict, the concluding
+ "git commit" failed to read in the SQUASH_MSG that shows the log
+ messages from all the squashed commits.
+
+ * "git merge FETCH_HEAD" dereferenced NULL pointer when merging
+ nothing into an unborn history (which is arguably unusual usage,
+ which perhaps was the reason why nobody noticed it).
+
+ * Build updates for MSVC.
+
+ * "git diff -M" used to work better when two originally identical
+ files A and B got renamed to X/A and X/B by pairing A to X/A and B
+ to X/B, but this was broken in the 2.0 timeframe.
+
+ * "git send-pack --all <there>" was broken when its command line
+ option parsing was written in the 2.6 timeframe.
+
+ * When running "git blame $path" with unnormalized data in the index
+ for the path, the data in the working tree was blamed, even though
+ "git add" would not have changed what is already in the index, due
+ to "safe crlf" that disables the line-end conversion. It has been
+ corrected.
+
Also contains minor documentation updates and code clean-ups.