Fixes since v1.8.1
------------------
+ * The attribute mechanism didn't allow limiting attributes to be
+ applied to only a single directory itself with "path/" like the
+ exclude mechanism does.
+
+ * When attempting to read the XDG-style $HOME/.config/git/config and
+ finding that $HOME/.config/git is a file, we gave a wrong error
+ message, instead of treating the case as "a custom config file does
+ not exist there" and moving on.
+
* After failing to create a temporary file using mkstemp(), failing
pathname was not reported correctly on some platforms.
* http transport was wrong to ask for the username when the
authentication is done by certificate identity.
+ * The behaviour visible to the end users was confusing, when they
+ attempt to kill a process spawned in the editor that was in turn
+ launched by Git with SIGINT (or SIGQUIT), as Git would catch that
+ signal and die. We ignore these signals now.
+
+ * A child process that was killed by a signal (e.g. SIGINT) was
+ reported in an inconsistent way depending on how the process was
+ spawned by us, with or without a shell in between.
+
* After "git add -N" and then writing a tree object out of the
index, the cache-tree data structure got corrupted.
+ * "git apply" misbehaved when fixing whitespace breakages by removing
+ excess trailing blank lines in some corner cases.
+
+ * A tar archive created by "git archive" recorded a directory in a
+ way that made NetBSD's implementation of "tar" sometimes unhappy.
+
+ * When "git clone --separate-git-dir=$over_there" is interrupted, it
+ failed to remove the real location of the $GIT_DIR it created.
+ This was most visible when interrupting a submodule update.
+
+ * "git fetch --mirror" and fetch that uses other forms of refspec
+ with wildcard used to attempt to update a symbolic ref that match
+ the wildcard on the receiving end, which made little sense (the
+ real ref that is pointed at by the symbolic ref would be updated
+ anyway). Symbolic refs no longer are affected by such a fetch.
+
+ * The "log --graph" codepath fell into infinite loop in some
+ corner cases.
+
+ * "git merge" started calling prepare-commit-msg hook like "git
+ commit" does some time ago, but forgot to pay attention to the exit
+ status of the hook.
+
* "git pack-refs" that ran in parallel to another process that
created new refs had a race that can lose new ones.
whose length exactly is the wrap width, "git shortlog -w" failed
to add a newline after such a line.
+ * The way "git svn" asked for password using SSH_ASKPASS and
+ GIT_ASKPASS was not in line with the rest of the system.
+
+ * "gitweb", when sorting by age to show repositories with new
+ activities first, used to sort repositories with absolutely
+ nothing in it early, which was not very useful.
+
* "gitweb", when sorting by age to show repositories with new
activities first, used to sort repositories with absolutely
nothing in it early, which was not very useful.
+ * When autoconf is used, any build on a different commit always ran
+ "config.status --recheck" even when unnecessary.
+
* Some scripted programs written in Python did not get updated when
PYTHON_PATH changed.