0.20.21	UNRELEASED

 * Add basic support for a GcsObjectStore that stores
   pack files in gcs. (Jelmer Vernooij)

 * In porcelain.push, default to local active branch.
   (Jelmer Vernooij, #846)

 * Support fetching symrefs.
   (Jelmer Vernooij, #485, #847)

0.20.20	2021-03-03

 * Implement ``Stash.drop``. (Peter Rowlands)

 * Support untracked symlinks to paths outside the
   repository. (Peter Rowlands, #842)

0.20.19	2021-02-11

 * Fix handling of negative matches in nested gitignores.
   (Corentin Hembise, #836)

0.20.18	2021-02-04

 * Fix formatting in setup.py. (Jelmer Vernooij)

 * Add release configuration. (Jelmer Vernooij)

0.20.17	2021-02-04

 * credentials: ignore end-of-line character. (Georges Racinet)

 * Fix failure in get_untracked_paths when the repository contains symlinks.
   (#830, #793, mattseddon)

 * docs: Clarify that Git objects are created on `git add`.
   (Utku Gultopu)

0.20.16	2021-01-16

 * Add flag to only attempt to fetch ignored untracked files when specifically requested.
   (Matt Seddon)

0.20.15	2020-12-23

 * Add some functions for parsing and writing bundles.
   (Jelmer Vernooij)

 * Add ``no_verify`` flag to ``porcelain.commit`` and ``Repo.do_commit``.
   (Peter Rowlands)

 * Remove dependency on external mock module.
   (Matěj Cepl, #820)

0.20.14	2020-11-26

 * Fix some stash functions on Python 3. (Peter Rowlands)

 * Fix handling of relative paths in alternates files on Python 3.
   (Georges Racinet)

0.20.13	2020-11-22

 * Add py.typed to allow type checking. (David Caro)

 * Add tests demonstrating a bug in the walker code.
   (Doug Hellman)

0.20.11	2020-10-30

 * Fix wheels build on Linux. (Ruslan Kuprieiev)

 * Enable wheels build for Python 3.9 on Linux. (Jelmer Vernooij)

0.20.8	2020-10-29

 * Build wheels on Mac OS X / Windows for Python 3.9.
   (Jelmer Vernooij)

0.20.7	2020-10-29

 * Check core.repositoryformatversion. (Jelmer Vernooij, #803)

 * Fix ACK/NACK handling in archive command handling in dulwich.client.
   (DzmitrySudnik, #805)

0.20.6	2020-08-29

 * Add a ``RefsContainer.watch`` interface.
   (Jelmer Vernooij, #751)

 * Fix pushing of new branches from porcelain.push.
   (Jelmer Vernooij, #788)

 * Honor shallows when pushing from a shallow clone.
   (Jelmer Vernooij, #794)

 * Fix porcelain.path_to_tree_path for Python 3.5.
   (Boris Feld, #777)

 * Add support for honor proxy environment variables for HTTP.
   (Aurélien Campéas, #797)

0.20.5	2020-06-22

 * Print a clearer exception when setup.py is executed on Python < 3.5.
   (Jelmer Vernooij, #783)

 * Send an empty pack to clients if they requested objects, even if they
   already have those objects. Thanks to Martijn Pieters for
   the detailed bug report. (Jelmer Vernooij, #781)

 * porcelain.pull: Don't ask for objects that we already have.
   (Jelmer Vernooij, #782)

 * Add LCA implementation. (Kevin Hendricks)

 * Add functionality for finding the merge base. (Kevin Hendricks)

 * Check for diverged branches during push.
   (Jelmer Vernooij, #494)

 * Check for fast-forward during pull. (Jelmer Vernooij, #666)

 * Return a SendPackResult object from
   GitClient.send_pack(). (Jelmer Vernooij)

 * ``GitClient.send_pack`` now sets the ``ref_status`` attribute
   on its return value to a dictionary mapping ref names
   to error messages. Previously, it raised UpdateRefsError
   if any of the refs failed to update.
   (Jelmer Vernooij, #780)

 * Add a ``porcelain.Error`` object that most errors in porcelain
   derive from. (Jelmer Vernooij)

 * Fix argument parsing in dulwich command-line app.
   (Jelmer Vernooij, #784)

0.20.3	2020-06-14

 * Add support for remembering remote refs after push/pull.
   (Jelmer Vernooij, #752)

 * Support passing tree and output encoding to
   dulwich.patch.unified_diff. (Jelmer Vernooij, #763)

 * Fix pushing of new refs over HTTP(S) when there are
   no new objects to be sent.
   (Jelmer Vernooij, #739)

 * Raise new error HTTPUnauthorized when the server sends
   back a 401. The client can then retry with credentials.
   (Jelmer Vernooij, #691)

 * Move the guts of bin/dulwich to dulwich.cli, so it is easier to
   test or import. (Jelmer Vernooij)

 * Install dulwich script from entry_points when setuptools is available,
   making it slightly easier to use on Windows. (Jelmer Vernooij, #540)

 * Set python_requires>=3.5 in setup.py. (Manuel Jacob)

0.20.2	2020-06-01

 * Brown bag release to fix uploads of Windows wheels.

0.20.1	2020-06-01

 * Publish binary wheels for: Windows, Linux, Mac OS X.
   (Jelmer Vernooij, #711, #710, #629)

0.20.0	2020-06-01

 * Drop support for Python 2. (Jelmer Vernooij)

 * Only return files from the loose store that look like git objects.
   (Nicolas Dandrimont)

 * Ignore agent= capability if sent by client.
   (Jelmer Vernooij)

 * Don't break when encountering block devices.
   (Jelmer Vernooij)

 * Decode URL paths in HttpGitClient using utf-8 rather than file system
   encoding. (Manuel Jacob)

 * Fix pushing from a shallow clone.
   (Brecht Machiels, #705)

0.19.16	2020-04-17

 * Don't send "deepen None" to server if graph walker
   supports shallow. (Jelmer Vernooij, #747)

 * Support tweaking the compression level for
   loose objects through the "core.looseCompression" and
   "core.compression" settings. (Jelmer Vernooij)

 * Support tweaking the compression level for
   pack objects through the "core.packCompression" and
   "core.compression" settings. (Jelmer Vernooij)

 * Add a "dulwich.contrib.diffstat" module.
   (Kevin Hendricks)

0.19.15	2020-01-26

 * Properly handle files that are just executable for the
   current user. (Jelmer Vernooij, #734)

 * Fix handling of stored encoding in
   ``dulwich.porcelain.get_object_by_path`` on Python 3.
   (Jelmer Vernooij)

 * Support the include_trees and rename_detector arguments
   at the same time when diffing trees.
   (Jelmer Vernooij)

0.19.14	2019-11-30

 * Strip superfluous <> around email. (monnerat)

 * Stop checking for ref validity client-side. Users can
   still call check_wants manually. (Jelmer Vernooij)

 * Switch over to Google-style docstrings.
   (Jelmer Vernooij)

 * Add a ``dulwich.porcelain.active_branch`` function.
   (Jelmer Vernooij)

 * Cleanup new directory if clone fails. (Jelmer Vernooij, #733)

 * Expand "~" in global exclude path. (Jelmer Vernooij)

0.19.13	2019-08-19

 BUG FIXES

 * Avoid ``PermissionError``, since it is Python3-specific.
  (Jelmer Vernooij)

 * Fix regression that added a dependency on C git for the
   test suite. (Jelmer Vernooij, #720)

 * Fix compatibility with Python 3.8 - mostly deprecation warnings.
   (Jelmer Vernooij)

0.19.12	2019-08-13

 BUG FIXES

 * Update directory detection for `get_unstaged_changes` for Python 3.
   (Boris Feld, #684)

 * Add a basic ``porcelain.clean``. (Lane Barlow, #398)

 * Fix output format of ``porcelain.diff`` to match that of
   C Git. (Boris Feld)

 * Return a 404 not found error when repository is not found.

 * Mark ``.git`` directories as hidden on Windows.
   (Martin Packman, #585)

 * Implement ``RefsContainer.__iter__``
   (Jelmer Vernooij, #717)

 * Don't trust modes if they can't be modified after a file has been created.
   (Jelmer Vernooij, #719)

0.19.11	2019-02-07

 IMPROVEMENTS

 * Use fullname from gecos field, if available.
   (Jelmer Vernooij)

 * Support ``GIT_AUTHOR_NAME`` / ``GIT_AUTHOR_EMAIL``.
   (Jelmer Vernooij)

 * Add support for short ids in parse_commit. (Jelmer Vernooij)

 * Add support for ``prune`` and ``prune_tags`` arguments
   to ``porcelain.fetch``. (Jelmer Vernooij, #681)

 BUG FIXES

  * Fix handling of race conditions when new packs appear.
    (Jelmer Vernooij)

0.19.10	2018-01-15

 IMPROVEMENTS

 * Add `dulwich.porcelain.write_tree`.
   (Jelmer Vernooij)

 * Support reading ``MERGE_HEADS`` in ``Repo.do_commit``.
   (Jelmer Vernooij)

 * Import from ``collections.abc`` rather than ``collections`` where
   applicable. Required for 3.8 compatibility.
   (Jelmer Vernooij)

 * Support plain strings as refspec arguments to
   ``dulwich.porcelain.push``. (Jelmer Vernooij)

 * Add support for creating signed tags.
   (Jelmer Vernooij, #542)

 BUG FIXES

 *  Handle invalid ref that pretends to be a sub-folder under a valid ref.
    (KS Chan)

0.19.9	2018-11-17

 BUG FIXES

 * Avoid fetching ghosts in ``Repo.fetch``.
   (Jelmer Vernooij)

 * Preserve port and username in parsed HTTP URLs.
   (Jelmer Vernooij)

 * Add basic server side implementation of ``git-upload-archive``.
   (Jelmer Vernooij)

0.19.8	2018-11-06

 * Fix encoding when reading README file in setup.py.
   (egor <egor@sourced.tech>, #668)

0.19.7	2018-11-05

 CHANGES

  * Drop support for Python 3 < 3.4. This is because
    pkg_resources (which get used by setuptools and mock)
    no longer supports 3.3 and earlier. (Jelmer Vernooij)

 IMPROVEMENTS

  * Support ``depth`` argument to ``GitClient.fetch_pack`` and support
    fetching and updating shallow metadata. (Jelmer Vernooij, #240)

 BUG FIXES

  * Don't write to stdout and stderr when they are not available
    (such as is the case for pythonw). (Sylvia van Os, #652)

  * Fix compatibility with newer versions of git, which expect CONTENT_LENGTH
    to be set to 0 for empty body requests. (Jelmer Vernooij, #657)

  * Raise an exception client-side when a caller tries to request
    SHAs that are not directly referenced the servers' refs.
    (Jelmer Vernooij)

  * Raise more informative errors when unable to connect to repository
    over SSH or subprocess. (Jelmer Vernooij)

  * Handle commit identity fields with multiple ">" characters.
    (Nicolas Dandrimont)

 IMPROVEMENTS

  * ``dulwich.porcelain.get_object_by_path`` method for easily
    accessing a path in another tree. (Jelmer Vernooij)

  * Support the ``i18n.commitEncoding`` setting in config.
    (Jelmer Vernooij)

0.19.6	2018-08-11

 BUG FIXES

  * Fix support for custom transport arguments in ``dulwich.porcelain.clone``.
    (Semyon Slepov)

  * Fix compatibility with Python 3.8 (Jelmer Vernooij, Daniel M. Capella)

  * Fix some corner cases in ``path_to_tree_path``. (Romain Keramitas)

  * Support paths as bytestrings in various places in ``dulwich.index``
    (Jelmer Vernooij)

  * Avoid setup.cfg for now, since it seems to break pypi metadata.
    (Jelmer Vernooij, #658)

0.19.5	2018-07-08

 IMPROVEMENTS

  * Add ``porcelain.describe``. (Sylvia van Os)

 BUG FIXES

  * Fix regression in ``dulwich.porcelain.clone`` that prevented cloning
    of remote repositories. (Jelmer Vernooij, #639)

  * Don't leave around empty parent directories for removed refs.
    (Damien Tournoud, #640)

0.19.4	2018-06-24

 IMPROVEMENTS

  * Add ``porcelain.ls_files``. (Jelmer Vernooij)

  * Add ``Index.items``. (Jelmer Vernooij)

 BUG FIXES

  * Avoid unicode characters (e.g. the digraph ij in my surname) in setup.cfg,
    since setuptools doesn't deal well with them. See
    https://github.com/pypa/setuptools/issues/1062. (Jelmer Vernooij, #637)

0.19.3	2018-06-17

 IMPROVEMENTS

  * Add really basic `dulwich.porcelain.fsck` implementation.
    (Jelmer Vernooij)

  * When the `DULWICH_PDB` environment variable is set, make
    SIGQUIT open pdb in the 'dulwich' command.

  * Add `checkout` argument to `Repo.clone`.
    (Jelmer Vernooij, #503)

  * Add `Repo.get_shallow` method. (Jelmer Vernooij)

  * Add basic `dulwich.stash` module. (Jelmer Vernooij)

  * Support a `prefix` argument to `dulwich.archive.tar_stream`.
    (Jelmer Vernooij)

 BUG FIXES

  * Fix handling of encoding for tags. (Jelmer Vernooij, #608)

  * Fix tutorial tests on Python 3. (Jelmer Vernooij, #573)

  * Fix remote refs created by `porcelain.fetch`. (Daniel Andersson, #623)

  * More robust pack creation on Windows. (Daniel Andersson)

  * Fix recursive option for `porcelain.ls_tree`. (Romain Keramitas)

 TESTS

  * Some improvements to paramiko tests. (Filipp Frizzy)

0.19.2	2018-04-07

 BUG FIXES

  * Fix deprecated Index.iterblobs method.
    (Jelmer Vernooij)

0.19.1	2018-04-05

 IMPROVEMENTS

  * Add 'dulwich.mailmap' file for reading mailmap files.
    (Jelmer Vernooij)

  * Dulwich no longer depends on urllib3[secure]. Instead,
    "dulwich[https]" can be used to pull in the necessary
    dependencies for HTTPS support. (Jelmer Vernooij, #616)

  * Support the `http.sslVerify` and `http.sslCAInfo`
    configuration options. (Jelmer Vernooij)

  * Factor out `dulwich.client.parse_rsync_url` function.
    (Jelmer Vernooij)

  * Fix repeat HTTP requests using the same smart HTTP client.
    (Jelmer Vernooij)

  * New 'client.PLinkSSHVendor' for creating connections using PuTTY's plink.exe.
    (Adam Bradley, Filipp Frizzy)

  * Only pass in `key_filename` and `password` to SSHVendor
    implementations if those parameters are set.
    (This helps with older SSHVendor implementations)
    (Jelmer Vernooij)

 API CHANGES

  * Index.iterblobs has been renamed to Index.iterobjects.
    (Jelmer Vernooij)

0.19.0	2018-03-10

 BUG FIXES

  * Make `dulwich.archive` set the gzip header file modification time so that
    archives created from the same Git tree are always identical.
    (#577, Jonas Haag)

  * Allow comment characters (#, ;) within configuration file strings
    (Daniel Andersson, #579)

  * Raise exception when passing in invalid author/committer values
    to Repo.do_commit(). (Jelmer Vernooij, #602)

 IMPROVEMENTS

  * Add a fastimport ``extra``. (Jelmer Vernooij)

  * Start writing reflog entries. (Jelmer Vernooij)

  * Add ability to use password and keyfile ssh options with SSHVendor. (Filipp Kucheryavy)

  * Add ``change_type_same`` flag to ``tree_changes``.
    (Jelmer Vernooij)

 API CHANGES

  * ``GitClient.send_pack`` now accepts a ``generate_pack_data``
    rather than a ``generate_pack_contents`` function for
    performance reasons. (Jelmer Vernooij)

  * Dulwich now uses urllib3 internally for HTTP requests.
    The `opener` argument to `dulwich.client.HttpGitClient` that took a
    `urllib2` opener instance has been replaced by a `pool_manager` argument
    that takes a `urllib3` pool manager instance.
    (Daniel Andersson)

0.18.6	2017-11-11

 BUG FIXES

  * Fix handling of empty repositories in ``porcelain.clone``.
    (#570, Jelmer Vernooij)

  * Raise an error when attempting to add paths that are not under the
    repository. (Jelmer Vernooij)

  * Fix error message for missing trailing ]. (Daniel Andersson)

  * Raise EmptyFileException when corruption (in the form of an empty
    file) is detected. (Antoine R. Dumont, #582)

  IMPROVEMENTS

  * Enforce date field parsing consistency. This also add checks on
    those date fields for potential overflow.
    (Antoine R. Dumont, #567)

0.18.5	2017-10-29

 BUG FIXES

  * Fix cwd for hooks. (Fabian Grünbichler)

  * Fix setting of origin in config when non-standard origin is passed into
    ``Repo.clone``. (Kenneth Lareau, #565)

  * Prevent setting SSH arguments from SSH URLs when using SSH through a
    subprocess. Note that Dulwich doesn't support cloning submodules.
    (CVE-2017-16228) (Jelmer Vernooij)

 IMPROVEMENTS

  * Silently ignored directories in ``Repo.stage``.
    (Jelmer Vernooij, #564)

 API CHANGES

  * GitFile now raises ``FileLocked`` when encountering a lock
    rather than OSError(EEXIST). (Jelmer Vernooij)

0.18.4	2017-10-01

 BUG FIXES

  * Make default User-Agent start with "git/" because GitHub won't response to
    HTTP smart server requests otherwise (and reply with a 404).
    (Jelmer vernooij, #562)

0.18.3	2017-09-03

 BUG FIXES

  * Read config during porcelain operations that involve remotes.
    (Jelmer Vernooij, #545)

  * Fix headers of empty chunks in unified diffs. (Taras Postument, #543)

  * Properly follow redirects over HTTP. (Jelmer Vernooij, #117)

 IMPROVEMENTS

  * Add ``dulwich.porcelain.update_head``. (Jelmer Vernooij, #439)

  * ``GitClient.fetch_pack`` now returns symrefs.
    (Jelmer Vernooij, #485)

  * The server now supports providing symrefs.
    (Jelmer Vernooij, #485)

  * Add ``dulwich.object_store.commit_tree_changes`` to incrementally
    commit changes to a tree structure. (Jelmer Vernooij)

  * Add basic ``PackBasedObjectStore.repack`` method.
    (Jelmer Vernooij, Earl Chew, #296, #549, #552)

0.18.2	2017-08-01

 TEST FIXES

  * Use constant timestamp so tests pass in all timezones, not just BST.
    (Jelmer Vernooij)

0.18.1	2017-07-31

 BUG FIXES

  * Fix syntax error in dulwich.contrib.test_swift_smoke.
    (Jelmer Vernooij)

0.18.0	2017-07-31

 BUG FIXES

  * Fix remaining tests on Windows. (Jelmer Vernooij, #493)

  * Fix build of C extensions with Python 3 on Windows.
    (Jelmer Vernooij)

  * Pass 'mkdir' argument onto Repo.init_bare in Repo.clone.
    (Jelmer Vernooij, #504)

  * In ``dulwich.porcelain.add``, if no files are specified,
    add from current working directory rather than repository root.
    (Jelmer Vernooij, #521)

  * Properly deal with submodules in 'porcelain.status'.
    (Jelmer Vernooij, #517)

  * ``dulwich.porcelain.remove`` now actually removes files from
    disk, not just from the index. (Jelmer Vernooij, #488)

  * Fix handling of "reset" command with markers and without
    "from". (Antoine Pietri)

  * Fix handling of "merge" command with markers. (Antoine Pietri)

  * Support treeish argument to porcelain.reset(), rather than
    requiring a ref/commit id. (Jelmer Vernooij)

  * Handle race condition when mtime doesn't change between writes/reads.
    (Jelmer Vernooij, #541)

  * Fix ``dulwich.porcelain.show`` on commits with Python 3.
    (Jelmer Vernooij, #532)

 IMPROVEMENTS

  * Add basic support for reading ignore files in ``dulwich.ignore``.
    ``dulwich.porcelain.add`` and ``dulwich.porcelain.status`` now honor
    ignores. (Jelmer Vernooij, Segev Finer, #524, #526)

  * New ``dulwich.porcelain.check_ignore`` command.
    (Jelmer Vernooij)

  * ``dulwich.porcelain.status`` now supports a ``ignored`` argument.
    (Jelmer Vernooij)

 DOCUMENTATION

  * Clarified docstrings for Client.{send_pack,fetch_pack} implementations.
    (Jelmer Vernooij, #523)

0.17.3	2017-03-20

 PLATFORM SUPPORT

  * List Python 3.3 as supported. (Jelmer Vernooij, #513)

 BUG FIXES

  * Fix compatibility with pypy 3. (Jelmer Vernooij)

0.17.2	2017-03-19

 BUG FIXES

  * Add workaround for
    https://bitbucket.org/pypy/pypy/issues/2499/cpyext-pystring_asstring-doesnt-work,
    fixing Dulwich when used with C extensions on pypy < 5.6. (Victor Stinner)

  * Properly quote config values with a '#' character in them.
    (Jelmer Vernooij, #511)

0.17.1	2017-03-01

 IMPROVEMENTS

  * Add basic 'dulwich pull' command. (Jelmer Vernooij)

 BUG FIXES

  * Cope with existing submodules during pull.
    (Jelmer Vernooij, #505)

0.17.0	2017-03-01

 TEST FIXES

  * Skip test that requires sync to synchronize filesystems if os.sync is
    not available. (Koen Martens)

 IMPROVEMENTS

  * Implement MemoryRepo.{set_description,get_description}.
    (Jelmer Vernooij)

  * Raise exception in Repo.stage() when absolute paths are
    passed in. Allow passing in relative paths to
    porcelain.add().(Jelmer Vernooij)

 BUG FIXES

  * Handle multi-line quoted values in config files.
    (Jelmer Vernooij, #495)

  * Allow porcelain.clone of repository without HEAD.
    (Jelmer Vernooij, #501)

  * Support passing tag ids to Walker()'s include argument.
    (Jelmer Vernooij)

  * Don't strip trailing newlines from extra headers.
    (Nicolas Dandrimont)

  * Set bufsize=0 for subprocess interaction with SSH client.
    Fixes hangs on Python 3. (René Stern, #434)

  * Don't drop first slash for SSH paths, except for those
    starting with "~". (Jelmer Vernooij, René Stern, #463)

  * Properly log off after retrieving just refs.
    (Jelmer Vernooij)

0.16.3	2016-01-14

 TEST FIXES

  * Remove racy check that relies on clock time changing between writes.
    (Jelmer Vernooij)

 IMPROVEMENTS

  * Add porcelain.remote_add. (Jelmer Vernooij)

0.16.2	2016-01-14

 IMPROVEMENTS

  * Fixed failing test-cases on windows.
    (Koen Martens)

 API CHANGES

  * Repo is now a context manager, so that it can be easily
    closed using a ``with`` statement. (Søren Løvborg)

 TEST FIXES

  * Only run worktree list compat tests against git 2.7.0,
    when 'git worktree list' was introduced. (Jelmer Vernooij)

 BUG FIXES

  * Ignore filemode when building index when core.filemode
    is false.
    (Koen Martens)

  * Initialize core.filemode configuration setting by
    probing the filesystem for trustable permissions.
    (Koen Martens)

  * Fix ``porcelain.reset`` to respect the comittish argument.
    (Koen Martens)

  * Fix dulwich.porcelain.ls_remote() on Python 3.
    (#471, Jelmer Vernooij)

  * Allow both unicode and byte strings for host paths
    in dulwich.client. (#435, Jelmer Vernooij)

  * Add remote from porcelain.clone. (#466, Jelmer Vernooij)

  * Fix unquoting of credentials before passing to urllib2.
    (#475, Volodymyr Holovko)

  * Cope with submodules in `build_index_from_tree`.
    (#477, Jelmer Vernooij)

  * Handle deleted files in `get_unstaged_changes`.
    (#483, Doug Hellmann)

  * Don't overwrite files when they haven't changed in
    `build_file_from_blob`.
    (#479, Benoît HERVIER)

  * Check for existence of index file before opening pack.
    Fixes a race when new packs are being added.
    (#482, wme)

0.16.1	2016-12-25

 BUG FIXES

  * Fix python3 compatibility for dulwich.contrib.release_robot.
    (Jelmer Vernooij)

0.16.0	2016-12-24

 IMPROVEMENTS

  * Add support for worktrees. See `git-worktree(1)` and
    `gitrepository-layout(5)`. (Laurent Rineau)

  * Add support for `commondir` file in Git control
    directories. (Laurent Rineau)

  * Add support for passwords in HTTP URLs.
    (Jon Bain, Mika Mäenpää)

  * Add `release_robot` script to contrib,
    allowing easy finding of current version based on Git tags.
    (Mark Mikofski)

  * Add ``Blob.splitlines`` method.
    (Jelmer Vernooij)

 BUG FIXES

  * Fix handling of ``Commit.tree`` being set to an actual
    tree object rather than a tree id. (Jelmer Vernooij)

  * Return remote refs from LocalGitClient.fetch_pack(),
    consistent with the documentation for that method.
    (#461, Jelmer Vernooij)

  * Fix handling of unknown URL schemes in get_transport_and_path.
    (#465, Jelmer Vernooij)

0.15.0	2016-10-09

 BUG FIXES

  * Allow missing trailing LF when reading service name from
    HTTP servers. (Jelmer Vernooij, Andrew Shadura, #442)

  * Fix dulwich.porcelain.pull() on Python3. (Jelmer Vernooij, #451)

  * Properly pull in tags during dulwich.porcelain.clone.
    (Jelmer Vernooij, #408)

 CHANGES

  * Changed license from "GNU General Public License, version 2.0 or later"
    to "Apache License, version 2.0 or later or GNU General Public License,
    version 2.0 or later". (#153)

 IMPROVEMENTS

  * Add ``dulwich.porcelain.ls_tree`` implementation. (Jelmer Vernooij)

0.14.1	2016-07-05

 BUG FIXES

  * Fix regression removing untouched refs when pushing over SSH.
    (Jelmer Vernooij #441)

  * Skip Python3 tests for SWIFT contrib module, as it has not yet
    been ported.

0.14.0	2016-07-03

 BUG FIXES

  * Fix ShaFile.id after modification of a copied ShaFile.
    (Félix Mattrat, Jelmer Vernooij)

  * Support removing refs from porcelain.push.
    (Jelmer Vernooij, #437)

  * Stop magic protocol ref `capabilities^{}` from leaking out
    to clients. (Jelmer Vernooij, #254)

 IMPROVEMENTS

  * Add `dulwich.config.parse_submodules` function.

  * Add `RefsContainer.follow` method. (#438)

0.13.0	2016-04-24

 IMPROVEMENTS

  * Support `ssh://` URLs in get_transport_and_path_from_url().
    (Jelmer Vernooij, #402)

  * Support missing empty line after headers in Git commits and tags.
    (Nicolas Dandrimont, #413)

  * Fix `dulwich.porcelain.status` when used in empty trees.
    (Jelmer Vernooij, #415)

  * Return copies of objects in MemoryObjectStore rather than
    references, making the behaviour more consistent with that of
    DiskObjectStore. (Félix Mattrat, Jelmer Vernooij)

  * Fix ``dulwich.web`` on Python3. (#295, Jonas Haag)

 CHANGES

  * Drop support for Python 2.6.

  * Fix python3 client web support. (Jelmer Vernooij)

 BUG FIXES

  * Fix hang on Gzip decompression. (Jonas Haag)

  * Don't rely on working tell() and seek() methods
    on wsgi.input. (Jonas Haag)

  * Support fastexport/fastimport functionality on python3 with newer
    versions of fastimport (>= 0.9.5). (Jelmer Vernooij, Félix Mattrat)

0.12.0	2015-12-13

 IMPROVEMENTS

  * Add a `dulwich.archive` module that can create tarballs.
    Based on code from Jonas Haag in klaus.

  * Add a `dulwich.reflog` module for reading and writing reflogs.
    (Jelmer Vernooij)

  * Fix handling of ambiguous refs in `parse_ref` to make
    it match the behaviour described in https://git-scm.com/docs/gitrevisions.
    (Chris Bunney)

  * Support Python3 in C modules. (Lele Gaifax)

 BUG FIXES

  * Simplify handling of SSH command invocation.
    Fixes quoting of paths. Thanks, Thomas Liebetraut. (#384)

  * Fix inconsistent handling of trailing slashes for DictRefsContainer. (#383)

  * Add hack to support thin packs duing fetch(), albeit while requiring the
    entire pack file to be loaded into memory. (jsbain)

 CHANGES

  * This will be the last release to support Python 2.6.

0.11.2	2015-09-18

 IMPROVEMENTS

  * Add support for agent= capability. (Jelmer Vernooij, #298)

  * Add support for quiet capability. (Jelmer Vernooij)

 CHANGES

  * The ParamikoSSHVendor class has been moved to
  * dulwich.contrib.paramiko_vendor, as it's currently untested.
    (Jelmer Vernooij, #364)

0.11.1	2015-09-13

 Fix-up release to exclude broken blame.py file.

0.11.0	2015-09-13

 IMPROVEMENTS

  * Extended Python3 support to most of the codebase.
    (Gary van der Merwe, Jelmer Vernooij)
  * The `Repo` object has a new `close` method that can be called to close any
    open resources. (Gary van der Merwe)
  * Support 'git.bat' in SubprocessGitClient on Windows.
    (Stefan Zimmermann)
  * Advertise 'ofs-delta' capability in receive-pack server side
    capabilities. (Jelmer Vernooij)
  * Switched `default_local_git_client_cls` to `LocalGitClient`.
    (Gary van der Merwe)
  * Add `porcelain.ls_remote` and `GitClient.get_refs`.
    (Michael Edgar)
  * Add `Repo.discover` method. (B. M. Corser)
  * Add `dulwich.objectspec.parse_refspec`. (Jelmer Vernooij)
  * Add `porcelain.pack_objects` and `porcelain.repack`.
    (Jelmer Vernooij)

 BUG FIXES

  * Fix handling of 'done' in graph walker and implement the
    'no-done' capability. (Tommy Yu, #88)

  * Avoid recursion limit issues resolving deltas. (William Grant, #81)

  * Allow arguments in local client binary path overrides.
    (Jelmer Vernooij)

  * Fix handling of commands with arguments in paramiko SSH
    client. (Andreas Klöckner, Jelmer Vernooij, #363)

  * Fix parsing of quoted strings in configs. (Jelmer Vernooij, #305)

0.10.1  2015-03-25

 BUG FIXES

  * Return `ApplyDeltaError` when encountering delta errors
    in both C extensions and native delta application code.
    (Jelmer Vernooij, #259)

0.10.0	2015-03-22

 BUG FIXES

  * In dulwich.index.build_index_from_tree, by default
    refuse to create entries that start with .git/.

  * Fix running of testsuite when installed.
    (Jelmer Vernooij, #223)

  * Use a block cache in _find_content_rename_candidates(),
    improving performance. (Mike Williams)

  * Add support for ``core.protectNTFS`` setting.
    (Jelmer Vernooij)

  * Fix TypeError when fetching empty updates.
    (Hwee Miin Koh)

  * Resolve delta refs when pulling into a MemoryRepo.
    (Max Shawabkeh, #256)

  * Fix handling of tags of non-commits in missing object finder.
    (Augie Fackler, #211)

  * Explicitly disable mmap on plan9 where it doesn't work.
    (Jeff Sickel)

 IMPROVEMENTS

  * New public method `Repo.reset_index`. (Jelmer Vernooij)

  * Prevent duplicate parsing of loose files in objects
    directory when reading. Thanks to David Keijser for the
    report. (Jelmer Vernooij, #231)

0.9.9	2015-03-20

 SECURITY BUG FIXES

  * Fix buffer overflow in C implementation of pack apply_delta().
    (CVE-2015-0838)

    Thanks to Ivan Fratric of the Google Security Team for
    reporting this issue.
    (Jelmer Vernooij)

0.9.8	2014-11-30

 BUG FIXES

  * Various fixes to improve test suite running on Windows.
    (Gary van der Merwe)

  * Limit delta copy length to 64K in v2 pack files. (Robert Brown)

  * Strip newline from final ACKed SHA while fetching packs.
    (Michael Edgar)

  * Remove assignment to PyList_SIZE() that was causing segfaults on
    pypy. (Jelmer Vernooij, #196)

 IMPROVEMENTS

  * Add porcelain 'receive-pack' and 'upload-pack'. (Jelmer Vernooij)

  * Handle SIGINT signals in bin/dulwich. (Jelmer Vernooij)

  * Add 'status' support to bin/dulwich. (Jelmer Vernooij)

  * Add 'branch_create', 'branch_list', 'branch_delete' porcelain.
    (Jelmer Vernooij)

  * Add 'fetch' porcelain. (Jelmer Vernooij)

  * Add 'tag_delete' porcelain. (Jelmer Vernooij)

  * Add support for serializing/deserializing 'gpgsig' attributes in Commit.
    (Jelmer Vernooij)

 CHANGES

  * dul-web is now available as 'dulwich web-daemon'.
    (Jelmer Vernooij)

  * dulwich.porcelain.tag has been renamed to tag_create.
    dulwich.porcelain.list_tags has been renamed to tag_list.
    (Jelmer Vernooij)

 API CHANGES

  * Restore support for Python 2.6. (Jelmer Vernooij, Gary van der Merwe)


0.9.7	2014-06-08

 BUG FIXES

  * Fix tests dependent on hash ordering. (Michael Edgar)

  * Support staging symbolic links in Repo.stage.
    (Robert Brown)

  * Ensure that all files object are closed when running the test suite.
    (Gary van der Merwe)

  * When writing OFS_DELTA pack entries, write correct offset.
    (Augie Fackler)

  * Fix handler of larger copy operations in packs. (Augie Fackler)

  * Various fixes to improve test suite running on Windows.
    (Gary van der Merwe)

  * Fix logic for extra adds of identical files in rename detector.
    (Robert Brown)

 IMPROVEMENTS

  * Add porcelain 'status'. (Ryan Faulkner)

  * Add porcelain 'daemon'. (Jelmer Vernooij)

  * Add `dulwich.greenthreads` module which provides support
    for concurrency of some object store operations.
    (Fabien Boucher)

  * Various changes to improve compatibility with Python 3.
    (Gary van der Merwe, Hannu Valtonen, michael-k)

  * Add OpenStack Swift backed repository implementation
    in dulwich.contrib. See README.swift for details. (Fabien Boucher)

API CHANGES

  * An optional close function can be passed to the Protocol class. This will
    be called by its close method. (Gary van der Merwe)

  * All classes with close methods are now context managers, so that they can
    be easily closed using a `with` statement. (Gary van der Merwe)

  * Remove deprecated `num_objects` argument to `write_pack` methods.
    (Jelmer Vernooij)

 OTHER CHANGES

  * The 'dul-daemon' script has been removed. The same functionality
    is now available as 'dulwich daemon'. (Jelmer Vernooij)

0.9.6	2014-04-23

 IMPROVEMENTS

  * Add support for recursive add in 'git add'.
    (Ryan Faulkner, Jelmer Vernooij)

  * Add porcelain 'list_tags'. (Ryan Faulkner)

  * Add porcelain 'push'. (Ryan Faulkner)

  * Add porcelain 'pull'. (Ryan Faulkner)

  * Support 'http.proxy' in HttpGitClient.
    (Jelmer Vernooij, #1096030)

  * Support 'http.useragent' in HttpGitClient.
    (Jelmer Vernooij)

  * In server, wait for clients to send empty list of
    wants when talking to empty repository.
    (Damien Tournoud)

  * Various changes to improve compatibility with
    Python 3. (Gary van der Merwe)

 BUG FIXES

  * Support unseekable 'wsgi.input' streams.
    (Jonas Haag)

  * Raise TypeError when passing unicode() object
    to Repo.__getitem__.
    (Jonas Haag)

  * Fix handling of `reset` command in dulwich.fastexport.
    (Jelmer Vernooij, #1249029)

  * In client, don't wait for server to close connection
    first. Fixes hang when used against GitHub
    server implementation. (Siddharth Agarwal)

  * DeltaChainIterator: fix a corner case where an object is inflated as an
    object already in the repository.
    (Damien Tournoud, #135)

  * Stop leaking file handles during pack reload. (Damien Tournoud)

  * Avoid reopening packs during pack cache reload. (Jelmer Vernooij)

 API CHANGES

  * Drop support for Python 2.6. (Jelmer Vernooij)

0.9.5	2014-02-23

 IMPROVEMENTS

  * Add porcelain 'tag'. (Ryan Faulkner)

  * New module `dulwich.objectspec` for parsing strings referencing
    objects and commit ranges. (Jelmer Vernooij)

  * Add shallow branch support. (milki)

  * Allow passing urllib2 `opener` into HttpGitClient.
    (Dov Feldstern, #909037)

 CHANGES

  * Drop support for Python 2.4 and 2.5. (Jelmer Vernooij)

 API CHANGES

  * Remove long deprecated ``Repo.commit``, ``Repo.get_blob``,
    ``Repo.tree`` and ``Repo.tag``. (Jelmer Vernooij)

  * Remove long deprecated ``Repo.revision_history`` and ``Repo.ref``.
    (Jelmer Vernooij)

  * Remove long deprecated ``Tree.entries``. (Jelmer Vernooij)

 BUG FIXES

  * Raise KeyError rather than TypeError when passing in
    unicode object of length 20 or 40 to Repo.__getitem__.
    (Jelmer Vernooij)

  * Use 'rm' rather than 'unlink' in tests, since the latter
    does not exist on OpenBSD and other platforms.
    (Dmitrij D. Czarkoff)

0.9.4	2013-11-30

 IMPROVEMENTS

  * Add ssh_kwargs attribute to ParamikoSSHVendor. (milki)

  * Add Repo.set_description(). (Víðir Valberg Guðmundsson)

  * Add a basic `dulwich.porcelain` module. (Jelmer Vernooij, Marcin Kuzminski)

  * Various performance improvements for object access.
    (Jelmer Vernooij)

  * New function `get_transport_and_path_from_url`,
    similar to `get_transport_and_path` but only
    supports URLs.
    (Jelmer Vernooij)

  * Add support for file:// URLs in `get_transport_and_path_from_url`.
    (Jelmer Vernooij)

  * Add LocalGitClient implementation.
    (Jelmer Vernooij)

 BUG FIXES

  * Support filesystems with 64bit inode and device numbers.
    (André Roth)

 CHANGES

  * Ref handling has been moved to dulwich.refs.
    (Jelmer Vernooij)

 API CHANGES

  * Remove long deprecated RefsContainer.set_ref().
    (Jelmer Vernooij)

  * Repo.ref() is now deprecated in favour of Repo.refs[].
    (Jelmer Vernooij)

FEATURES

  * Add support for graftpoints. (milki)

0.9.3	2013-09-27

 BUG FIXES

  * Fix path for stdint.h in MANIFEST.in. (Jelmer Vernooij)

0.9.2	2013-09-26

 BUG FIXES

  * Include stdint.h in MANIFEST.in (Mark Mikofski)

0.9.1	2013-09-22

 BUG FIXES

  * Support lookups of 40-character refs in BaseRepo.__getitem__. (Chow Loong Jin, Jelmer Vernooij)

  * Fix fetching packs with side-band-64k capability disabled. (David Keijser, Jelmer Vernooij)

  * Several fixes in send-pack protocol behaviour - handling of empty pack files and deletes.
    (milki, #1063087)

  * Fix capability negotiation when fetching packs over HTTP.
    (#1072461, William Grant)

  * Enforce determine_wants returning an empty list rather than None. (Fabien Boucher, Jelmer Vernooij)

  * In the server, support pushes just removing refs. (Fabien Boucher, Jelmer Vernooij)

 IMPROVEMENTS

  * Support passing a single revision to BaseRepo.get_walker() rather than a list of revisions. 
    (Alberto Ruiz)

  * Add `Repo.get_description` method. (Jelmer Vernooij)

  * Support thin packs in Pack.iterobjects() and Pack.get_raw().
    (William Grant)

  * Add `MemoryObjectStore.add_pack` and `MemoryObjectStore.add_thin_pack` methods.
    (David Bennett)

  * Add paramiko-based SSH vendor. (Aaron O'Mullan)

  * Support running 'dulwich.server' and 'dulwich.web' using 'python -m'.
    (Jelmer Vernooij)

  * Add ObjectStore.close(). (Jelmer Vernooij)

  * Raise appropriate NotImplementedError when encountering dumb HTTP servers.
    (Jelmer Vernooij)

 API CHANGES

  * SSHVendor.connect_ssh has been renamed to SSHVendor.run_command.
    (Jelmer Vernooij)

  * ObjectStore.add_pack() now returns a 3-tuple. The last element will be an
    abort() method that can be used to cancel the pack operation.
    (Jelmer Vernooij)

0.9.0	2013-05-31

 BUG FIXES

  * Push efficiency - report missing objects only. (#562676, Artem Tikhomirov)

  * Use indentation consistent with C Git in config files.
    (#1031356, Curt Moore, Jelmer Vernooij)

  * Recognize and skip binary files in diff function.
    (Takeshi Kanemoto)

  * Fix handling of relative paths in dulwich.client.get_transport_and_path.
    (Brian Visel, #1169368)

  * Preserve ordering of entries in configuration.
    (Benjamin Pollack)

  * Support ~ expansion in SSH client paths. (milki, #1083439)

  * Support relative paths in alternate paths.
    (milki, Michel Lespinasse, #1175007)

  * Log all error messages from wsgiref server to the logging module. This
    makes the test suit quiet again. (Gary van der Merwe)

  * Support passing None for empty tree in changes_from_tree.
    (Kevin Watters)

  * Support fetching empty repository in client. (milki, #1060462)

 IMPROVEMENTS:

  * Add optional honor_filemode flag to build_index_from_tree.
    (Mark Mikofski)

  * Support core/filemode setting when building trees. (Jelmer Vernooij)

  * Add chapter on tags in tutorial. (Ryan Faulkner)

 FEATURES

  * Add support for mergetags. (milki, #963525)

  * Add support for posix shell hooks. (milki)

0.8.7	2012-11-27

 BUG FIXES

  * Fix use of alternates in ``DiskObjectStore``.{__contains__,__iter__}.
    (Dmitriy)

  * Fix compatibility with Python 2.4. (David Carr)

0.8.6	2012-11-09

 API CHANGES

  * dulwich.__init__ no longer imports client, protocol, repo and
    server modules. (Jelmer Vernooij)

 FEATURES

  * ConfigDict now behaves more like a dictionary.
    (Adam 'Cezar' Jenkins, issue #58)

  * HTTPGitApplication now takes an optional
    `fallback_app` argument. (Jonas Haag, issue #67)

  * Support for large pack index files. (Jameson Nash)

 TESTING

  * Make index entry tests a little bit less strict, to cope with
    slightly different behaviour on various platforms.
    (Jelmer Vernooij)

  * ``setup.py test`` (available when setuptools is installed) now
    runs all tests, not just the basic unit tests.
    (Jelmer Vernooij)

 BUG FIXES

  * Commit._deserialize now actually deserializes the current state rather than
    the previous one. (Yifan Zhang, issue #59)

  * Handle None elements in lists of TreeChange objects. (Alex Holmes)

  * Support cloning repositories without HEAD set.
    (D-Key, Jelmer Vernooij, issue #69)

  * Support ``MemoryRepo.get_config``. (Jelmer Vernooij)

  * In ``get_transport_and_path``, pass extra keyword arguments on to
    HttpGitClient. (Jelmer Vernooij)

0.8.5	2012-03-29

 BUG FIXES

  * Avoid use of 'with' in dulwich.index. (Jelmer Vernooij)

  * Be a little bit strict about OS behaviour in index tests.
    Should fix the tests on Debian GNU/kFreeBSD. (Jelmer Vernooij)

0.8.4	2012-03-28

 BUG FIXES

  * Options on the same line as sections in config files are now supported.
    (Jelmer Vernooij, #920553)

  * Only negotiate capabilities that are also supported by the server.
    (Rod Cloutier, Risto Kankkunen)

  * Fix parsing of invalid timezone offsets with two minus signs.
    (Jason R. Coombs, #697828)

  * Reset environment variables during tests, to avoid
    test isolation leaks reading ~/.gitconfig. (Risto Kankkunen)

 TESTS

  * $HOME is now explicitly specified for tests that use it to read
    ``~/.gitconfig``, to prevent test isolation issues.
    (Jelmer Vernooij, #920330)

 FEATURES

  * Additional arguments to get_transport_and_path are now passed
    on to the constructor of the transport. (Sam Vilain)

  * The WSGI server now transparently handles when a git client submits data
    using Content-Encoding: gzip.
    (David Blewett, Jelmer Vernooij)

  * Add dulwich.index.build_index_from_tree(). (milki)

0.8.3	2012-01-21

 FEATURES

  * The config parser now supports the git-config file format as
    described in git-config(1) and can write git config files.
    (Jelmer Vernooij, #531092, #768687)

  * ``Repo.do_commit`` will now use the user identity from
    .git/config or ~/.gitconfig if none was explicitly specified.
    (Jelmer Vernooij)

 BUG FIXES

  * Allow ``determine_wants`` methods to include the zero sha in their
    return value. (Jelmer Vernooij)

0.8.2	2011-12-18

 BUG FIXES

  * Cope with different zlib buffer sizes in sha1 file parser.
    (Jelmer Vernooij)

  * Fix get_transport_and_path for HTTP/HTTPS URLs.
    (Bruno Renié)

  * Avoid calling free_objects() on NULL in error cases. (Chris Eberle)

  * Fix use --bare argument to 'dulwich init'. (Chris Eberle)

  * Properly abort connections when the determine_wants function
    raises an exception. (Jelmer Vernooij, #856769)

  * Tweak xcodebuild hack to deal with more error output.
    (Jelmer Vernooij, #903840)

 FEATURES

  * Add support for retrieving tarballs from remote servers.
    (Jelmer Vernooij, #379087)

  * New method ``update_server_info`` which generates data
    for dumb server access. (Jelmer Vernooij, #731235)

0.8.1	2011-10-31

 FEATURES

  * Repo.do_commit has a new argument 'ref'.

  * Repo.do_commit has a new argument 'merge_heads'. (Jelmer Vernooij)

  * New ``Repo.get_walker`` method. (Jelmer Vernooij)

  * New ``Repo.clone`` method. (Jelmer Vernooij, #725369)

  * ``GitClient.send_pack`` now supports the 'side-band-64k' capability.
    (Jelmer Vernooij)

  * ``HttpGitClient`` which supports the smart server protocol over
    HTTP. "dumb" access is not yet supported. (Jelmer Vernooij, #373688)

  * Add basic support for alternates. (Jelmer Vernooij, #810429)

 CHANGES

  * unittest2 or python >= 2.7 is now required for the testsuite.
    testtools is no longer supported. (Jelmer Vernooij, #830713)

 BUG FIXES

  * Fix compilation with older versions of MSVC.  (Martin gz)

  * Special case 'refs/stash' as a valid ref. (Jelmer Vernooij, #695577)

  * Smart protocol clients can now change refs even if they are
    not uploading new data. (Jelmer Vernooij, #855993)

  * Don't compile C extensions when running in pypy.
    (Ronny Pfannschmidt, #881546)

  * Use different name for strnlen replacement function to avoid clashing
    with system strnlen. (Jelmer Vernooij, #880362)

 API CHANGES

  * ``Repo.revision_history`` is now deprecated in favor of ``Repo.get_walker``.
    (Jelmer Vernooij)

0.8.0	2011-08-07

 FEATURES

  * New DeltaChainIterator abstract class for quickly iterating all objects in
    a pack, with implementations for pack indexing and inflation.
    (Dave Borowitz)

  * New walk module with a Walker class for customizable commit walking.
    (Dave Borowitz)

  * New tree_changes_for_merge function in diff_tree. (Dave Borowitz)

  * Easy rename detection in RenameDetector even without find_copies_harder.
    (Dave Borowitz)

 BUG FIXES

  * Avoid storing all objects in memory when writing pack.
    (Jelmer Vernooij, #813268)

  * Support IPv6 for git:// connections. (Jelmer Vernooij, #801543)

  * Improve performance of Repo.revision_history(). (Timo Schmid, #535118)

  * Fix use of SubprocessWrapper on Windows. (Paulo Madeira, #670035)

  * Fix compilation on newer versions of Mac OS X (Lion and up). (Ryan McKern, #794543)

  * Prevent raising ValueError for correct refs in RefContainer.__delitem__.

  * Correctly return a tuple from MemoryObjectStore.get_raw. (Dave Borowitz)

  * Fix a bug in reading the pack checksum when there are fewer than 20 bytes
    left in the buffer. (Dave Borowitz)

  * Support ~ in git:// URL paths. (Jelmer Vernooij, #813555)

  * Make ShaFile.__eq__ work when other is not a ShaFile. (Dave Borowitz)

  * ObjectStore.get_graph_walker() now no longer yields the same
    revision more than once. This has a significant improvement for
    performance when wide revision graphs are involved.
    (Jelmer Vernooij, #818168)

  * Teach ReceivePackHandler how to read empty packs. (Dave Borowitz)

  * Don't send a pack with duplicates of the same object. (Dave Borowitz)

  * Teach the server how to serve a clone of an empty repo. (Dave Borowitz)

  * Correctly advertise capabilities during receive-pack. (Dave Borowitz)

  * Fix add/add and add/rename conflicts in tree_changes_for_merge.
    (Dave Borowitz)

  * Use correct MIME types in web server. (Dave Borowitz)

 API CHANGES

  * write_pack no longer takes the num_objects argument and requires an object
    to be passed in that is iterable (rather than an iterator) and that
    provides __len__.  (Jelmer Vernooij)

  * write_pack_data has been renamed to write_pack_objects and no longer takes a
    num_objects argument. (Jelmer Vernooij)

  * take_msb_bytes, read_zlib_chunks, unpack_objects, and
    PackStreamReader.read_objects now take an additional argument indicating a
    crc32 to compute. (Dave Borowitz)

  * PackObjectIterator was removed; its functionality is still exposed by
    PackData.iterobjects. (Dave Borowitz)

  * Add a sha arg to write_pack_object to incrementally compute a SHA.
    (Dave Borowitz)

  * Include offset in PackStreamReader results. (Dave Borowitz)

  * Move PackStreamReader from server to pack. (Dave Borowitz)

  * Extract a check_length_and_checksum, compute_file_sha, and
    pack_object_header pack helper functions. (Dave Borowitz)

  * Extract a compute_file_sha function. (Dave Borowitz)

  * Remove move_in_thin_pack as a separate method; add_thin_pack now completes
    the thin pack and moves it in in one step. Remove ThinPackData as well.
    (Dave Borowitz)

  * Custom buffer size in read_zlib_chunks. (Dave Borowitz)

  * New UnpackedObject data class that replaces ad-hoc tuples in the return
    value of unpack_object and various DeltaChainIterator methods.
    (Dave Borowitz)

  * Add a lookup_path convenience method to Tree. (Dave Borowitz)

  * Optionally create RenameDetectors without passing in tree SHAs.
    (Dave Borowitz)

  * Optionally include unchanged entries in RenameDetectors. (Dave Borowitz)

  * Optionally pass a RenameDetector to tree_changes. (Dave Borowitz)

  * Optionally pass a request object through to server handlers. (Dave Borowitz)

 TEST CHANGES

  * If setuptools is installed, "python setup.py test" will now run the testsuite.
    (Jelmer Vernooij)

  * Add a new build_pack test utility for building packs from a simple spec.
    (Dave Borowitz)

  * Add a new build_commit_graph test utility for building commits from a
    simple spec. (Dave Borowitz)

0.7.1	2011-04-12

 BUG FIXES

  * Fix double decref in _diff_tree.c. (Ted Horst, #715528)

  * Fix the build on Windows. (Pascal Quantin)

  * Fix get_transport_and_path compatibility with pre-2.6.5 versions of Python.
    (Max Bowsher, #707438)

  * BaseObjectStore.determine_wants_all no longer breaks on zero SHAs.
    (Jelmer Vernooij)

  * write_tree_diff() now supports submodules.
    (Jelmer Vernooij)

  * Fix compilation for XCode 4 and older versions of distutils.sysconfig.
    (Daniele Sluijters)

 IMPROVEMENTS

  * Sphinxified documentation. (Lukasz Balcerzak)

  * Add Pack.keep.(Marc Brinkmann)

 API CHANGES

  * The order of the parameters to Tree.add(name, mode, sha) has changed, and
    is now consistent with the rest of Dulwich. Existing code will still
    work but print a DeprecationWarning. (Jelmer Vernooij, #663550)

  * Tree.entries() is now deprecated in favour of Tree.items() and
    Tree.iteritems(). (Jelmer Vernooij)

0.7.0	2011-01-21

 FEATURES

  * New `dulwich.diff_tree` module for simple content-based rename detection.
    (Dave Borowitz)

  * Add Tree.items(). (Jelmer Vernooij)

  * Add eof() and unread_pkt_line() methods to Protocol. (Dave Borowitz)

  * Add write_tree_diff(). (Jelmer Vernooij)

  * Add `serve_command` function for git server commands as executables.
    (Jelmer Vernooij)

  * dulwich.client.get_transport_and_path now supports rsync-style repository URLs.
    (Dave Borowitz, #568493)

 BUG FIXES

  * Correct short-circuiting operation for no-op fetches in the server.
    (Dave Borowitz)

  * Support parsing git mbox patches without a version tail, as generated by
    Mercurial.  (Jelmer Vernooij)

  * Fix dul-receive-pack and dul-upload-pack. (Jelmer Vernooij)

  * Zero-padded file modes in Tree objects no longer trigger an exception but
    the check code warns about them. (Augie Fackler, #581064)

  * Repo.init() now honors the mkdir flag. (#671159)

  * The ref format is now checked when setting a ref rather than when reading it back.
    (Dave Borowitz, #653527)

  * Make sure pack files are closed correctly. (Tay Ray Chuan)

 DOCUMENTATION

  * Run the tutorial inside the test suite. (Jelmer Vernooij)

  * Reorganized and updated the tutorial. (Jelmer Vernooij, Dave Borowitz, #610550,
     #610540)


0.6.2	2010-10-16

 BUG FIXES

  * HTTP server correctly handles empty CONTENT_LENGTH. (Dave Borowitz)

  * Don't error when creating GitFiles with the default mode. (Dave Borowitz)

  * ThinPackData.from_file now works with resolve_ext_ref callback.
    (Dave Borowitz)

  * Provide strnlen() on mingw32 which doesn't have it. (Hans Kolek)

  * Set bare=true in the configuratin for bare repositories. (Dirk Neumann)

 FEATURES

  * Use slots for core objects to save up on memory. (Jelmer Vernooij)

  * Web server supports streaming progress/pack output. (Dave Borowitz)

  * New public function dulwich.pack.write_pack_header. (Dave Borowitz)

  * Distinguish between missing files and read errors in HTTP server.
    (Dave Borowitz)

  * Initial work on support for fastimport using python-fastimport.
    (Jelmer Vernooij)

  * New dulwich.pack.MemoryPackIndex class. (Jelmer Vernooij)

  * Delegate SHA peeling to the object store.  (Dave Borowitz)

 TESTS

  * Use GitFile when modifying packed-refs in tests. (Dave Borowitz)

  * New tests in test_web with better coverage and fewer ad-hoc mocks.
    (Dave Borowitz)

  * Standardize quote delimiters in test_protocol. (Dave Borowitz)

  * Fix use when testtools is installed. (Jelmer Vernooij)

  * Add trivial test for write_pack_header. (Jelmer Vernooij)

  * Refactor some of dulwich.tests.compat.server_utils. (Dave Borowitz)

  * Allow overwriting id property of objects in test utils. (Dave Borowitz)

  * Use real in-memory objects rather than stubs for server tests.
    (Dave Borowitz)

  * Clean up MissingObjectFinder. (Dave Borowitz)

 API CHANGES

  * ObjectStore.iter_tree_contents now walks contents in depth-first, sorted
    order. (Dave Borowitz)

  * ObjectStore.iter_tree_contents can optionally yield tree objects as well.
    (Dave Borowitz).

  * Add side-band-64k support to ReceivePackHandler. (Dave Borowitz)

  * Change server capabilities methods to classmethods. (Dave Borowitz)

  * Tweak server handler injection. (Dave Borowitz)

  * PackIndex1 and PackIndex2 now subclass FilePackIndex, which is 
    itself a subclass of PackIndex. (Jelmer Vernooij)

 DOCUMENTATION

  * Add docstrings for various functions in dulwich.objects. (Jelmer Vernooij)

  * Clean up docstrings in dulwich.protocol. (Dave Borowitz)

  * Explicitly specify allowed protocol commands to
    ProtocolGraphWalker.read_proto_line.  (Dave Borowitz)

  * Add utility functions to DictRefsContainer. (Dave Borowitz)


0.6.1	2010-07-22

 BUG FIXES

  * Fix memory leak in C implementation of sorted_tree_items. (Dave Borowitz)

  * Use correct path separators for named repo files. (Dave Borowitz)

  * python > 2.7 and testtools-based test runners will now also pick up skipped
    tests correctly. (Jelmer Vernooij)

 FEATURES

  * Move named file initilization to BaseRepo. (Dave Borowitz)

  * Add logging utilities and git/HTTP server logging. (Dave Borowitz)

  * The GitClient interface has been cleaned up and instances are now reusable.
    (Augie Fackler)

  * Allow overriding paths to executables in GitSSHClient. 
    (Ross Light, Jelmer Vernooij, #585204)

  * Add PackBasedObjectStore.pack_loose_objects(). (Jelmer Vernooij)

 TESTS

  * Add tests for sorted_tree_items and C implementation. (Dave Borowitz)

  * Add a MemoryRepo that stores everything in memory. (Dave Borowitz)

  * Quiet logging output from web tests. (Dave Borowitz)

  * More flexible version checking for compat tests. (Dave Borowitz)

  * Compat tests for servers with and without side-band-64k. (Dave Borowitz)

 CLEANUP

  * Clean up file headers. (Dave Borowitz)

 TESTS

  * Use GitFile when modifying packed-refs in tests. (Dave Borowitz)

 API CHANGES

  * dulwich.pack.write_pack_index_v{1,2} now take a file-like object
    rather than a filename. (Jelmer Vernooij)

  * Make dul-daemon/dul-web trivial wrappers around server functionality.
    (Dave Borowitz)

  * Move reference WSGI handler to web.py. (Dave Borowitz)

  * Factor out _report_status in ReceivePackHandler. (Dave Borowitz)

  * Factor out a function to convert a line to a pkt-line. (Dave Borowitz)


0.6.0	2010-05-22

note: This list is most likely incomplete for 0.6.0.

 BUG FIXES
 
  * Fix ReceivePackHandler to disallow removing refs without delete-refs.
    (Dave Borowitz)

  * Deal with capabilities required by the client, even if they 
    can not be disabled in the server. (Dave Borowitz)

  * Fix trailing newlines in generated patch files.
    (Jelmer Vernooij)

  * Implement RefsContainer.__contains__. (Jelmer Vernooij)

  * Cope with \r in ref files on Windows. (
    http://github.com/jelmer/dulwich/issues/#issue/13, Jelmer Vernooij)

  * Fix GitFile breakage on Windows. (Anatoly Techtonik, #557585)

  * Support packed ref deletion with no peeled refs. (Augie Fackler)

  * Fix send pack when there is nothing to fetch. (Augie Fackler)

  * Fix fetch if no progress function is specified. (Augie Fackler)

  * Allow double-staging of files that are deleted in the index. 
    (Dave Borowitz)

  * Fix RefsContainer.add_if_new to support dangling symrefs.
    (Dave Borowitz)

  * Non-existant index files in non-bare repositories are now treated as 
    empty. (Dave Borowitz)

  * Always update ShaFile.id when the contents of the object get changed. 
    (Jelmer Vernooij)

  * Various Python2.4-compatibility fixes. (Dave Borowitz)

  * Fix thin pack handling. (Dave Borowitz)
 
 FEATURES

  * Add include-tag capability to server. (Dave Borowitz)

  * New dulwich.fastexport module that can generate fastexport 
    streams. (Jelmer Vernooij)

  * Implemented BaseRepo.__contains__. (Jelmer Vernooij)

  * Add __setitem__ to DictRefsContainer. (Dave Borowitz)

  * Overall improvements checking Git objects. (Dave Borowitz)

  * Packs are now verified while they are received. (Dave Borowitz)

 TESTS

  * Add framework for testing compatibility with C Git. (Dave Borowitz)

  * Add various tests for the use of non-bare repositories. (Dave Borowitz)

  * Cope with diffstat not being available on all platforms. 
    (Tay Ray Chuan, Jelmer Vernooij)

  * Add make_object and make_commit convenience functions to test utils.
    (Dave Borowitz)

 API BREAKAGES

  * The 'committer' and 'message' arguments to Repo.do_commit() have 
    been swapped. 'committer' is now optional. (Jelmer Vernooij)

  * Repo.get_blob, Repo.commit, Repo.tag and Repo.tree are now deprecated.
    (Jelmer Vernooij)

  * RefsContainer.set_ref() was renamed to RefsContainer.set_symbolic_ref(),
    for clarity. (Jelmer Vernooij)

 API CHANGES

  * The primary serialization APIs in dulwich.objects now work 
    with chunks of strings rather than with full-text strings. 
    (Jelmer Vernooij)

0.5.02010-03-03

 BUG FIXES

  * Support custom fields in commits (readonly). (Jelmer Vernooij)

  * Improved ref handling. (Dave Borowitz)

  * Rework server protocol to be smarter and interoperate with cgit client.
    (Dave Borowitz)

  * Add a GitFile class that uses the same locking protocol for writes as 
    cgit. (Dave Borowitz)

  * Cope with forward slashes correctly in the index on Windows.
    (Jelmer Vernooij, #526793)

 FEATURES

  * --pure option to setup.py to allow building/installing without the C 
    extensions. (Hal Wine, Anatoly Techtonik, Jelmer Vernooij, #434326)

  * Implement Repo.get_config(). (Jelmer Vernooij, Augie Fackler)

  * HTTP dumb and smart server. (Dave Borowitz)

  * Add abstract baseclass for Repo that does not require file system 
    operations. (Dave Borowitz)

0.4.1	2010-01-03

 FEATURES

  * Add ObjectStore.iter_tree_contents(). (Jelmer Vernooij)

  * Add Index.changes_from_tree(). (Jelmer Vernooij)

  * Add ObjectStore.tree_changes(). (Jelmer Vernooij)

  * Add functionality for writing patches in dulwich.patch.
    (Jelmer Vernooij)

0.4.0	2009-10-07

 DOCUMENTATION

  * Added tutorial.

 API CHANGES

  * dulwich.object_store.tree_lookup_path will now return the mode and 
    sha of the object found rather than the object itself.

 BUG FIXES

  * Use binascii.hexlify / binascii.unhexlify for better performance.

  * Cope with extra unknown data in index files by ignoring it (for now).

  * Add proper error message when server unexpectedly hangs up. (#415843)

  * Correctly write opcode for equal in create_delta.

0.3.3	2009-07-23

 FEATURES

  * Implement ShaFile.__hash__().

  * Implement Tree.__len__()

 BUG FIXES
  
  * Check for 'objects' and 'refs' directories
    when looking for a Git repository. (#380818)

0.3.2	2009-05-20

 BUG FIXES

  * Support the encoding field in Commits.
  
  * Some Windows compatibility fixes.

  * Fixed several issues in commit support.

 FEATURES

  * Basic support for handling submodules.

0.3.1	2009-05-13

 FEATURES

  * Implemented Repo.__getitem__, Repo.__setitem__ and Repo.__delitem__ to 
    access content.

 API CHANGES

  * Removed Repo.set_ref, Repo.remove_ref, Repo.tags, Repo.get_refs and 
    Repo.heads in favor of Repo.refs, a dictionary-like object for accessing
    refs.

 BUG FIXES

  * Removed import of 'sha' module in objects.py, which was causing 
    deprecation warnings on Python 2.6.

0.3.0	2009-05-10

 FEATURES

  * A new function 'commit_tree' has been added that can commit a tree 
    based on an index.

 BUG FIXES

  * The memory usage when generating indexes has been significantly reduced.
 
  * A memory leak in the C implementation of parse_tree has been fixed.

  * The send-pack smart server command now works. (Thanks Scott Chacon)

  * The handling of short timestamps (less than 10 digits) has been fixed.

  * The handling of timezones has been fixed.

0.2.1	2009-04-30

 BUG FIXES

  * Fix compatibility with Python2.4.

0.2.0	2009-04-30

 FEATURES

  * Support for activity reporting in smart protocol client.

  * Optional C extensions for better performance in a couple of 
    places that are performance-critical.

0.1.1	2009-03-13

 BUG FIXES

  * Fixed regression in Repo.find_missing_objects()

  * Don't fetch ^{} objects from remote hosts, as requesting them 
    causes a hangup.

  * Always write pack to disk completely before calculating checksum.

 FEATURES

  * Allow disabling thin packs when talking to remote hosts.

0.1.0	2009-01-24

  * Initial release.