• An unquoted value in the configuration file, when it contains more than one whitespaces in a row, got them replaced with a single space.

• "git am" used to accept a single piece of e-mail per file (not a mbox) as its input, but multiple input format support in v1.6.4 broke it. Apparently many people have been depending on this feature.

• The short help text for "git filter-branch" command was a single long line, wrapped by terminals, and was hard to read.

• The "recursive" strategy of "git merge" segfaulted when a merge has more than one merge-bases, and merging of these merge-bases involves a rename/rename or a rename/add conflict.

• "git pull --rebase" did not use the right fork point when the repository has already fetched from the upstream that rewinds the branch it is based on in an earlier fetch.

• Explain the concept of fast-forward more fully in "git push" documentation, and hint to refer to it from an error message when the command refuses an update to protect the user.

• The default value for pack.deltacachesize, used by "git repack", is now 256M, instead of unbounded. Otherwise a repack of a moderately sized repository would needlessly eat into swap.

• Document how "git repack" (hence "git gc") interacts with a repository that borrows its objects from other repositories (e.g. ones created by "git clone -s").

• "git show" on an annotated tag lacked a delimiting blank line between the tag itself and the contents of the object it tags.

• "git verify-pack -v" erroneously reported number of objects with too deep delta depths as "chain length 0" objects.

• Long names of authors and committers outside US-ASCII were sometimes incorrectly shown in "gitweb".

Other minor documentation updates are included.