diff --git a/.travis.sh b/.travis.sh
index 317d318..54bfd01 100755
--- a/.travis.sh
+++ b/.travis.sh
@@ -2,7 +2,7 @@
 
 cd ~
 
-git clone --depth=1 -b v0.21.2 https://github.com/libgit2/libgit2.git
+git clone --depth=1 -b maint/v0.22 https://github.com/libgit2/libgit2.git
 cd libgit2/
 
 mkdir build && cd build
diff --git a/docs/install.rst b/docs/install.rst
index 621b103..bd13172 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -14,7 +14,7 @@ Requirements
 ============
 
 - Python 2.7, 3.2+ or pypy (including the development headers)
-- Libgit2 v0.21.1+
+- Libgit2 v0.22.x
 - cffi 0.8.1+
 - Libssh2, optional, used for SSH network operations.
 
@@ -34,11 +34,11 @@ while the last number |lq| *.micro* |rq| auto-increments independently.
 
 As illustration see this table of compatible releases:
 
-+-----------+---------------------------------------+------------------------------+--------------+
-|**libgit2**|0.21.1, 0.21.2                         |0.20.0                        |0.19.0        |
-+-----------+---------------------------------------+------------------------------+--------------+
-|**pygit2** |0.21.0, 0.21.1, 0.21.2, 0.21.3, 0.21.4 |0.20.0, 0.20.1, 0.20.2, 0.20.3|0.19.0, 0.19.1|
-+-----------+---------------------------------------+------------------------------+--------------+
++-----------+--------+----------------------------------------+-------------------------------+
+|**libgit2**| 0.22.0 | 0.21.1, 0.21.2                         |0.20.0                         |
++-----------+--------+----------------------------------------+-------------------------------+
+|**pygit2** | 0.22.0 | 0.21.0, 0.21.1, 0.21.2, 0.21.3, 0.21.4 | 0.20.0, 0.20.1, 0.20.2, 0.20.3|
++-----------+--------+----------------------------------------+-------------------------------+
 
 .. warning::
 
@@ -55,9 +55,9 @@ directory, do:
 
 .. code-block:: sh
 
-   $ wget https://github.com/libgit2/libgit2/archive/v0.21.2.tar.gz
-   $ tar xzf v0.21.2.tar.gz
-   $ cd libgit2-0.21.2/
+   $ wget https://github.com/libgit2/libgit2/archive/v0.22.0.tar.gz
+   $ tar xzf v0.22.0.tar.gz
+   $ cd libgit2-0.22.0/
    $ cmake .
    $ make
    $ sudo make install
diff --git a/pygit2/__init__.py b/pygit2/__init__.py
index 3ddfdac..601a7b9 100644
--- a/pygit2/__init__.py
+++ b/pygit2/__init__.py
@@ -41,7 +41,7 @@ from .index import Index, IndexEntry
 from .remote import Remote, get_credentials
 from .repository import Repository
 from .settings import Settings
-from .utils import to_bytes
+from .utils import to_bytes, to_str
 from ._utils import __version__
 
 
@@ -113,7 +113,7 @@ def init_repository(path, bare=False,
     check_error(err)
 
     # Ok
-    return Repository(path)
+    return Repository(to_str(path))
 
 
 @ffi.callback('int (*credentials)(git_cred **cred, const char *url,'
@@ -123,7 +123,7 @@ def _credentials_cb(cred_out, url, username_from_url, allowed, data):
     d = ffi.from_handle(data)
 
     try:
-        ccred = get_credentials(d['callback'], url, username_from_url, allowed)
+        ccred = get_credentials(d['credentials_cb'], url, username_from_url, allowed)
         cred_out[0] = ccred[0]
     except Exception as e:
         d['exception'] = e
@@ -131,10 +131,54 @@ def _credentials_cb(cred_out, url, username_from_url, allowed, data):
 
     return 0
 
+@ffi.callback('int (*git_repository_create_cb)(git_repository **out,'
+              'const char *path, int bare, void *payload)')
+def _repository_create_cb(repo_out, path, bare, data):
+    d = ffi.from_handle(data)
+    try:
+        repository = d['repository_cb'](ffi.string(path), bare != 0)
+        # we no longer own the C object
+        repository._disown()
+        repo_out[0] = repository._repo
+    except Exception as e:
+        d['exception'] = e
+        return C.GIT_EUSER
+
+    return 0
+
+@ffi.callback('int (*git_remote_create_cb)(git_remote **out, git_repository *repo,'
+              'const char *name, const char *url, void *payload)')
+def _remote_create_cb(remote_out, repo, name, url, data):
+    d = ffi.from_handle(data)
+    try:
+        remote = d['remote_cb'](Repository._from_c(repo, False), ffi.string(name), ffi.string(url))
+        remote_out[0] = remote._remote
+        # we no longer own the C object
+        remote._remote = ffi.NULL
+    except Exception as e:
+        d['exception'] = e
+        return C.GIT_EUSER
+
+    return 0
+
+@ffi.callback('int (*git_transport_certificate_check_cb)'
+              '(git_cert *cert, int valid, const char *host, void *payload)')
+def _certificate_cb(cert_i, valid, host, data):
+    d = ffi.from_handle(data)
+    try:
+        # python's parting is deep in the libraries and assumes an OpenSSL-owned cert
+        val = d['certificate_cb'](None, bool(valid), ffi.string(host))
+        if not val:
+            return C.GIT_ECERTIFICATE
+    except Exception as e:
+        d['exception'] = e
+        return C.GIT_EUSER
+
+    return 0
 
 def clone_repository(
-        url, path, bare=False, ignore_cert_errors=False,
-        remote_name="origin", checkout_branch=None, credentials=None):
+        url, path, bare=False, repository=None, remote=None,
+        checkout_branch=None, credentials=None, certificate=None):
     """Clones a new Git repository from *url* in the given *path*.
 
     Returns a Repository class pointing to the newly cloned repository.
@@ -145,7 +189,9 @@ def clone_repository(
 
     :param bool bare: Whether the local repository should be bare
 
-    :param str remote_name: Name to give the remote at *url*.
+    :param callable remote: Callback for the remote to use.
+
+    :param callable repository: Callback for the repository to use.
 
     :param str checkout_branch: Branch to checkout after the
      clone. The default is to use the remote's default branch.
@@ -153,8 +199,22 @@ def clone_repository(
     :param callable credentials: authentication to use if the remote
      requires it
 
+    :param callable certificate: callback to verify the host's
+     certificate or fingerprint.
+
     :rtype: Repository
 
+    The repository callback has `(path, bare) -> Repository` as a
+    signature. The Repository it returns will be used instead of
+    creating a new one.
+
+    The remote callback has `(Repository, name, url) -> Remote` as a
+    signature. The Remote it returns will be used instead of the default
+    one.
+
+    The certificate callback has `(cert, valid, hostname) -> bool` as
+    a signature. Return True to accept the connection, False to abort.
+
     """
 
     opts = ffi.new('git_clone_options *')
@@ -164,7 +224,10 @@ def clone_repository(
 
     # Data, let's use a dict as we don't really want much more
     d = {}
-    d['callback'] = credentials
+    d['credentials_cb'] = credentials
+    d['repository_cb'] = repository
+    d['remote_cb'] = remote
+    d['certificate_cb'] = certificate
     d_handle = ffi.new_handle(d)
 
     # Perform the initialization with the version we compiled
@@ -176,49 +239,32 @@ def clone_repository(
         checkout_branch_ref = ffi.new('char []', to_bytes(branch))
         opts.checkout_branch = checkout_branch_ref
 
-    remote_name_ref = ffi.new('char []', to_bytes(remote_name))
-    opts.remote_name = remote_name_ref
+    if repository:
+        opts.repository_cb = _repository_create_cb
+        opts.repository_cb_payload = d_handle
+
+    if remote:
+        opts.remote_cb = _remote_create_cb
+        opts.remote_cb_payload = d_handle
+
 
-    opts.ignore_cert_errors = ignore_cert_errors
     opts.bare = bare
     if credentials:
         opts.remote_callbacks.credentials = _credentials_cb
         opts.remote_callbacks.payload = d_handle
 
+    if certificate:
+        opts.remote_callbacks.certificate_check = _certificate_cb
+        opts.remote_callbacks.payload = d_handle
+
     err = C.git_clone(crepo, to_bytes(url), to_bytes(path), opts)
-    C.git_repository_free(crepo[0])
 
     if 'exception' in d:
         raise d['exception']
 
     check_error(err)
 
-    return Repository(path)
-
-
-def clone_into(repo, remote, branch=None):
-    """Clone into an empty repository from the specified remote
-
-    :param Repository repo: The empty repository into which to clone
-
-    :param Remote remote: The remote from which to clone
-
-    :param str branch: Branch to checkout after the clone. Pass None
-     to use the remotes's default branch.
-
-    This allows you specify arbitrary repository and remote configurations
-    before performing the clone step itself. E.g. you can replicate git-clone's
-    '--mirror' option by setting a refspec of '+refs/*:refs/*', 'core.mirror'
-    to true and calling this function.
-    """
-
-    err = C.git_clone_into(repo._repo, remote._remote, ffi.NULL,
-                           to_bytes(branch), ffi.NULL)
-
-    if remote._stored_exception:
-        raise remote._stored_exception
-
-    check_error(err)
+    return Repository._from_c(crepo[0], owned=True)
 
 settings = Settings()
 
diff --git a/pygit2/decl.h b/pygit2/decl.h
index 55cf0cc..e89f60f 100644
--- a/pygit2/decl.h
+++ b/pygit2/decl.h
@@ -1,7 +1,6 @@
 typedef ... git_repository;
 typedef ... git_remote;
 typedef ... git_refspec;
-typedef ... git_push;
 typedef ... git_cred;
 typedef ... git_object;
 typedef ... git_tree;
@@ -112,9 +111,38 @@ typedef enum {
 	GIT_CREDTYPE_SSH_KEY,
 	GIT_CREDTYPE_SSH_CUSTOM,
 	GIT_CREDTYPE_DEFAULT,
+    GIT_CREDTYPE_SSH_INTERACTIVE,
+    GIT_CREDTYPE_USERNAME,
 	...
 } git_credtype_t;
 
+typedef enum git_cert_t {
+	GIT_CERT_X509,
+	GIT_CERT_HOSTKEY_LIBSSH2,
+} git_cert_t;
+
+typedef enum {
+	GIT_CERT_SSH_MD5 = 1,
+	GIT_CERT_SSH_SHA1 = 2,
+} git_cert_ssh_t;
+
+typedef struct {
+	git_cert_t cert_type;
+	git_cert_ssh_t type;
+	unsigned char hash_md5[16];
+    unsigned char hash_sha1[20];
+} git_cert_hostkey;
+
+typedef struct {
+	git_cert_t cert_type;
+	void *data;
+	size_t len;
+} git_cert_x509;
+
+typedef struct {
+	git_cert_t cert_type;
+} git_cert;
+
 typedef int (*git_transport_message_cb)(const char *str, int len, void *data);
 typedef int (*git_cred_acquire_cb)(
 	git_cred **cred,
@@ -123,40 +151,59 @@ typedef int (*git_cred_acquire_cb)(
 	unsigned int allowed_types,
 	void *payload);
 typedef int (*git_transfer_progress_cb)(const git_transfer_progress *stats, void *payload);
+typedef int (*git_transport_certificate_check_cb)(git_cert *cert, int valid, const char *host, void *payload);
+
+typedef int (*git_packbuilder_progress)(
+	int stage,
+	unsigned int current,
+	unsigned int total,
+	void *payload);
+typedef int (*git_push_transfer_progress)(
+	unsigned int current,
+	unsigned int total,
+	size_t bytes,
+	void* payload);
 
 struct git_remote_callbacks {
 	unsigned int version;
 	git_transport_message_cb sideband_progress;
 	int (*completion)(git_remote_completion_type type, void *data);
 	git_cred_acquire_cb credentials;
+    git_transport_certificate_check_cb certificate_check;
 	git_transfer_progress_cb transfer_progress;
 	int (*update_tips)(const char *refname, const git_oid *a, const git_oid *b, void *data);
+    git_packbuilder_progress pack_progress;
+	git_push_transfer_progress push_transfer_progress;
+	int (*push_update_reference)(const char *refname, const char *status, void *data);
 	void *payload;
 };
 
 typedef struct git_remote_callbacks git_remote_callbacks;
 
+typedef struct {
+	unsigned int version;
+	unsigned int pb_parallelism;
+} git_push_options;
+
 int git_remote_list(git_strarray *out, git_repository *repo);
-int git_remote_load(git_remote **out, git_repository *repo, const char *name);
+int git_remote_lookup(git_remote **out, git_repository *repo, const char *name);
 int git_remote_create(
 	git_remote **out,
 	git_repository *repo,
 	const char *name,
 	const char *url);
-int git_remote_delete(git_remote *remote);
+int git_remote_delete(git_repository *repo, const char *name);
 int git_repository_state_cleanup(git_repository *repo);
 
 const char * git_remote_name(const git_remote *remote);
 
-int git_remote_rename(
-	git_strarray *problems,
-	git_remote *remote,
-	const char *new_name);
+int git_remote_rename(git_strarray *problems, git_repository *repo, const char *name, const char *new_name);
 const char * git_remote_url(const git_remote *remote);
 int git_remote_set_url(git_remote *remote, const char* url);
 const char * git_remote_pushurl(const git_remote *remote);
 int git_remote_set_pushurl(git_remote *remote, const char* url);
-int git_remote_fetch(git_remote *remote, const git_signature *signature, const char *reflog_message);
+int git_remote_fetch(git_remote *remote, const git_strarray *refspecs, const git_signature *signature, const char *reflog_message);
+int git_remote_push(git_remote *remote,	git_strarray *refspecs,	const git_push_options *opts, const git_signature *signature, const char *reflog_message);
 const git_transfer_progress * git_remote_stats(git_remote *remote);
 int git_remote_add_push(git_remote *remote, const char *refspec);
 int git_remote_add_fetch(git_remote *remote, const char *refspec);
@@ -173,22 +220,6 @@ int git_remote_set_push_refspecs(git_remote *remote, git_strarray *array);
 
 void git_remote_free(git_remote *remote);
 
-int git_push_new(git_push **push, git_remote *remote);
-int git_push_add_refspec(git_push *push, const char *refspec);
-int git_push_finish(git_push *push);
-int git_push_unpack_ok(git_push *push);
-
-int git_push_status_foreach(
-	git_push *push,
-	int (*cb)(const char *ref, const char *msg, void *data),
-	void *data);
-
-int git_push_update_tips(
-		git_push *push,
-		const git_signature *signature,
-		const char *reflog_message);
-void git_push_free(git_push *push);
-
 const char * git_refspec_src(const git_refspec *refspec);
 const char * git_refspec_dst(const git_refspec *refspec);
 int git_refspec_force(const git_refspec *refspec);
@@ -267,14 +298,12 @@ typedef int (*git_diff_notify_cb)(
 typedef struct {
 	unsigned int version;
 	uint32_t flags;
-
 	git_submodule_ignore_t ignore_submodules;
 	git_strarray       pathspec;
 	git_diff_notify_cb notify_cb;
 	void              *notify_payload;
-
-	uint16_t    context_lines;
-	uint16_t    interhunk_lines;
+	uint32_t    context_lines;
+	uint32_t    interhunk_lines;
 	uint16_t    id_abbrev;
 	git_off_t   max_size;
 	const char *old_prefix;
@@ -345,13 +374,6 @@ typedef struct git_checkout_options {
 	const char *their_label;
 } git_checkout_options;
 
-typedef enum {
-	GIT_CLONE_LOCAL_AUTO,
-	GIT_CLONE_LOCAL,
-	GIT_CLONE_NO_LOCAL,
-	GIT_CLONE_LOCAL_NO_LINKS,
-} git_clone_local_t;
-
 int git_checkout_init_options(git_checkout_options *opts, unsigned int version);
 int git_checkout_tree(git_repository *repo, const git_object *treeish, const git_checkout_options *opts);
 int git_checkout_head(git_repository *repo, const git_checkout_options *opts);
@@ -361,18 +383,38 @@ int git_checkout_index(git_repository *repo, git_index *index, const git_checkou
  * git_clone
  */
 
+typedef int (*git_remote_create_cb)(
+	git_remote **out,
+	git_repository *repo,
+	const char *name,
+	const char *url,
+	void *payload);
+
+typedef int (*git_repository_create_cb)(
+	git_repository **out,
+	const char *path,
+	int bare,
+	void *payload);
+
+typedef enum {
+	GIT_CLONE_LOCAL_AUTO,
+	GIT_CLONE_LOCAL,
+	GIT_CLONE_NO_LOCAL,
+	GIT_CLONE_LOCAL_NO_LINKS,
+} git_clone_local_t;
+
 typedef struct git_clone_options {
 	unsigned int version;
-
 	git_checkout_options checkout_opts;
 	git_remote_callbacks remote_callbacks;
-
 	int bare;
-	int ignore_cert_errors;
 	git_clone_local_t local;
-	const char *remote_name;
 	const char* checkout_branch;
 	git_signature *signature;
+	git_repository_create_cb repository_cb;
+	void *repository_cb_payload;
+	git_remote_create_cb remote_cb;
+	void *remote_cb_payload;
 } git_clone_options;
 
 #define GIT_CLONE_OPTIONS_VERSION ...
@@ -383,13 +425,6 @@ int git_clone(git_repository **out,
 	const char *local_path,
 	const git_clone_options *options);
 
-int git_clone_into(
-	git_repository *repo,
-	git_remote *remote,
-	const git_checkout_options *co_opts,
-	const char *branch,
-	const git_signature *signature);
-
 /*
  * git_config
  */
diff --git a/pygit2/remote.py b/pygit2/remote.py
index 2d9b846..c4a195f 100644
--- a/pygit2/remote.py
+++ b/pygit2/remote.py
@@ -121,6 +121,16 @@ class Remote(object):
         :param Oid new: the reference's new value
         """
 
+    def push_update_reference(self, refname, message):
+        """Push update reference callback
+
+        Override with your own function to report the remote's
+        acceptace or rejection of reference updates.
+
+        :param str refname: the name of the reference (on the remote)
+        :param str messsage: rejection message from the remote. If None, the update was accepted.
+        """
+
     def __init__(self, repo, ptr):
         """The constructor is for internal use only"""
 
@@ -137,25 +147,6 @@ class Remote(object):
 
         return maybe_string(C.git_remote_name(self._remote))
 
-    def rename(self, new_name):
-        """Rename this remote
-
-        Returns a list of fetch refspecs which were not in the standard format
-        and thus could not be remapped
-        """
-
-        if not new_name:
-            raise ValueError("New remote name must be a non-empty string")
-
-        problems = ffi.new('git_strarray *')
-        err = C.git_remote_rename(problems, self._remote, to_bytes(new_name))
-        check_error(err)
-
-        ret = strarray_to_strings(problems)
-        C.git_strarray_free(problems)
-
-        return ret
-
     @property
     def url(self):
         """Url of the remote"""
@@ -178,14 +169,6 @@ class Remote(object):
         err = C.git_remote_set_pushurl(self._remote, to_bytes(value))
         check_error(err)
 
-    def delete(self):
-        """Remove this remote
-
-        All remote-tracking branches and configuration settings for the remote will be removed.
-        """
-        err = C.git_remote_delete(self._remote)
-        check_error(err)
-
     def save(self):
         """save()
 
@@ -231,7 +214,7 @@ class Remote(object):
         self._stored_exception = None
 
         try:
-            err = C.git_remote_fetch(self._remote, ptr, to_bytes(message))
+            err = C.git_remote_fetch(self._remote, ffi.NULL, ptr, to_bytes(message))
             if self._stored_exception:
                 raise self._stored_exception
 
@@ -306,27 +289,30 @@ class Remote(object):
         err = C.git_remote_add_push(self._remote, to_bytes(spec))
         check_error(err)
 
-    @ffi.callback("int (*cb)(const char *ref, const char *msg, void *data)")
-    def _push_cb(ref, msg, data):
-        self = ffi.from_handle(data)
-        if msg:
-            self._bad_message = ffi.string(msg).decode()
-        return 0
+    def push(self, specs, signature=None, message=None):
+        """push(specs, signature, message)
 
-    def push(self, spec, signature=None, message=None):
-        """push(refspec, signature, message)
+        Push the given refspec to the remote. Raises ``GitError`` on
+        protocol error or unpack failure.
 
-        Push the given refspec to the remote. Raises ``GitError`` on error.
-
-        :param str spec: push refspec to use
+        :param [str] specs: push refspecs to use
         :param Signature signature: signature to use when updating the tips
         :param str message: message to use when updating the tips
+
         """
         # Get the default callbacks first
         defaultcallbacks = ffi.new('git_remote_callbacks *')
         err = C.git_remote_init_callbacks(defaultcallbacks, 1)
         check_error(err)
 
+        refspecs, refspecs_refs = strings_to_strarray(specs)
+        if signature:
+            sig_cptr = ffi.new('git_signature **')
+            ffi.buffer(sig_cptr)[:] = signature._pointer[:]
+            sig_ptr = sig_cptr[0]
+        else:
+            sig_ptr = ffi.NULL
+
         # Build custom callback structure
         callbacks = ffi.new('git_remote_callbacks *')
         callbacks.version = 1
@@ -334,53 +320,23 @@ class Remote(object):
         callbacks.transfer_progress = self._transfer_progress_cb
         callbacks.update_tips = self._update_tips_cb
         callbacks.credentials = self._credentials_cb
+        callbacks.push_update_reference = self._push_update_reference_cb
         # We need to make sure that this handle stays alive
         self._self_handle = ffi.new_handle(self)
         callbacks.payload = self._self_handle
 
-        err = C.git_remote_set_callbacks(self._remote, callbacks)
-
         try:
+            err = C.git_remote_set_callbacks(self._remote, callbacks)
             check_error(err)
         except:
             self._self_handle = None
             raise
 
-
-        cpush = ffi.new('git_push **')
-        err = C.git_push_new(cpush, self._remote)
-        check_error(err)
-
-        push = cpush[0]
-
         try:
-            err = C.git_push_add_refspec(push, to_bytes(spec))
+            err = C.git_remote_push(self._remote, refspecs, ffi.NULL, sig_ptr, to_bytes(message))
             check_error(err)
-
-            err = C.git_push_finish(push)
-            check_error(err)
-
-            if not C.git_push_unpack_ok(push):
-                raise GitError("remote failed to unpack objects")
-
-            err = C.git_push_status_foreach(push, self._push_cb,
-                                            ffi.new_handle(self))
-            check_error(err)
-
-            if hasattr(self, '_bad_message'):
-                raise GitError(self._bad_message)
-
-            if signature:
-                ptr = signature._pointer[:]
-            else:
-                ptr = ffi.NULL
-
-            err = C.git_push_update_tips(push, ptr, to_bytes(message))
-            check_error(err)
-
         finally:
             self._self_handle = None
-            C.git_push_free(push)
 
     # These functions exist to be called by the git_remote as
     # callbacks. They proxy the call to whatever the user set
@@ -437,6 +393,23 @@ class Remote(object):
 
         return 0
 
+    @ffi.callback("int (*push_update_reference)(const char *ref, const char *msg, void *data)")
+    def _push_update_reference_cb(ref, msg, data):
+        self = ffi.from_handle(data)
+
+        if not hasattr(self, 'push_update_reference') or not self.push_update_reference:
+            return 0
+
+        try:
+            refname = ffi.string(ref)
+            message = maybe_string(msg)
+            self.push_update_reference(refname, message)
+        except Exception as e:
+            self._stored_exception = e
+            return C.GIT_EUSER
+
+        return 0
+
     @ffi.callback('int (*credentials)(git_cred **cred, const char *url,'
                   'const char *username_from_url, unsigned int allowed_types,'
                   'void *data)')
@@ -528,7 +501,7 @@ class RemoteCollection(object):
 
             cremote = ffi.new('git_remote **')
             for i in range(names.count):
-                err = C.git_remote_load(cremote, self._repo._repo, names.strings[i])
+                err = C.git_remote_lookup(cremote, self._repo._repo, names.strings[i])
                 check_error(err)
 
                 yield Remote(self._repo, cremote[0])
@@ -540,7 +513,7 @@ class RemoteCollection(object):
             return list(self)[name]
 
         cremote = ffi.new('git_remote **')
-        err = C.git_remote_load(cremote, self._repo._repo, to_bytes(name))
+        err = C.git_remote_lookup(cremote, self._repo._repo, to_bytes(name))
         check_error(err)
 
         return Remote(self._repo, cremote[0])
@@ -557,3 +530,36 @@ class RemoteCollection(object):
         check_error(err)
 
         return Remote(self._repo, cremote[0])
+
+    def rename(self, name, new_name):
+        """rename(name, new_name) -> [str]
+
+        Rename a remote in the configuration. The refspecs in strandard
+        format will be renamed.
+
+        Returns a list of fetch refspecs which were not in the standard format
+        and thus could not be remapped
+        """
+
+        if not new_name:
+            raise ValueError("Current remote name must be a non-empty string")
+
+        if not new_name:
+            raise ValueError("New remote name must be a non-empty string")
+
+        problems = ffi.new('git_strarray *')
+        err = C.git_remote_rename(problems, self._repo._repo, to_bytes(name), to_bytes(new_name))
+        check_error(err)
+
+        ret = strarray_to_strings(problems)
+        C.git_strarray_free(problems)
+
+        return ret
+
+    def delete(self, name):
+        """Remove a remote from the configuration
+
+        All remote-tracking branches and configuration settings for the remote will be removed.
+        """
+        err = C.git_remote_delete(self._repo._repo, to_bytes(name))
+        check_error(err)
diff --git a/pygit2/repository.py b/pygit2/repository.py
index 7a3f8a6..3dd14f1 100644
--- a/pygit2/repository.py
+++ b/pygit2/repository.py
@@ -57,7 +57,18 @@ class Repository(_Repository):
 
     def __init__(self, *args, **kwargs):
         super(Repository, self).__init__(*args, **kwargs)
+        self._common_init()
 
+    @classmethod
+    def _from_c(cls, ptr, owned):
+        cptr = ffi.new('git_repository **')
+        cptr[0] = ptr
+        repo = cls.__new__(cls)
+        super(cls, repo)._from_c(bytes(ffi.buffer(cptr)[:]), owned)
+        repo._common_init()
+        return repo
+
+    def _common_init(self):
         self.remotes = RemoteCollection(self)
 
         # Get the pointer as the contents of a buffer and store it for
diff --git a/src/pygit2.c b/src/pygit2.c
index 2fec0c1..cf2decd 100644
--- a/src/pygit2.c
+++ b/src/pygit2.c
@@ -210,7 +210,6 @@ moduleinit(PyObject* m)
     ADD_CONSTANT_INT(m, GIT_OBJ_BLOB)
     ADD_CONSTANT_INT(m, GIT_OBJ_TAG)
     /* Valid modes for index and tree entries. */
-    ADD_CONSTANT_INT(m, GIT_FILEMODE_NEW)
     ADD_CONSTANT_INT(m, GIT_FILEMODE_TREE)
     ADD_CONSTANT_INT(m, GIT_FILEMODE_BLOB)
     ADD_CONSTANT_INT(m, GIT_FILEMODE_BLOB_EXECUTABLE)
@@ -347,7 +346,7 @@ moduleinit(PyObject* m)
     ADD_CONSTANT_INT(m, GIT_MERGE_ANALYSIS_UNBORN)
 
     /* Global initialization of libgit2 */
-    git_threads_init();
+    git_libgit2_init();
 
     return m;
 }
diff --git a/src/repository.c b/src/repository.c
index 1920438..9eabbb9 100644
--- a/src/repository.c
+++ b/src/repository.c
@@ -55,6 +55,9 @@ extern PyTypeObject ReferenceType;
 extern PyTypeObject NoteType;
 extern PyTypeObject NoteIterType;
 
+/* forward-declaration for Repsository._from_c() */
+PyTypeObject RepositoryType;
+
 git_otype
 int_to_loose_object_type(int type_id)
 {
@@ -88,19 +91,62 @@ Repository_init(Repository *self, PyObject *args, PyObject *kwds)
         return -1;
     }
 
+    self->owned = 1;
     self->config = NULL;
     self->index = NULL;
 
     return 0;
 }
 
+PyDoc_STRVAR(Repository__from_c__doc__, "Init a Repository from a pointer. For internal use only.");
+PyObject *
+Repository__from_c(Repository *py_repo, PyObject *args)
+{
+    PyObject *py_pointer, *py_free;
+    char *buffer;
+    Py_ssize_t len;
+    int err;
+
+    py_repo->repo = NULL;
+    py_repo->config = NULL;
+    py_repo->index = NULL;
+
+    if (!PyArg_ParseTuple(args, "OO!", &py_pointer, &PyBool_Type, &py_free))
+        return NULL;
+
+    err = PyBytes_AsStringAndSize(py_pointer, &buffer, &len);
+    if (err < 0)
+        return NULL;
+
+    if (len != sizeof(git_repository *)) {
+        PyErr_SetString(PyExc_TypeError, "invalid pointer length");
+        return NULL;
+    }
+
+    py_repo->repo = *((git_repository **) buffer);
+    py_repo->owned = py_free == Py_True;
+
+    Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(Repository__disown__doc__, "Mark the object as not-owned by us. For internal use only.");
+PyObject *
+Repository__disown(Repository *py_repo)
+{
+    py_repo->owned = 0;
+    Py_RETURN_NONE;
+}
+
 void
 Repository_dealloc(Repository *self)
 {
     PyObject_GC_UnTrack(self);
     Py_CLEAR(self->index);
     Py_CLEAR(self->config);
-    git_repository_free(self->repo);
+
+    if (self->owned)
+        git_repository_free(self->repo);
+
     Py_TYPE(self)->tp_free(self);
 }
 
@@ -526,7 +572,7 @@ Repository_merge_analysis(Repository *self, PyObject *py_id)
     int err;
     size_t len;
     git_oid id;
-    git_merge_head *merge_head;
+    git_annotated_commit *commit;
     git_merge_analysis_t analysis;
     git_merge_preference_t preference;
 
@@ -534,12 +580,12 @@ Repository_merge_analysis(Repository *self, PyObject *py_id)
     if (len == 0)
         return NULL;
 
-    err = git_merge_head_from_id(&merge_head, self->repo, &id);
+    err = git_annotated_commit_lookup(&commit, self->repo, &id);
     if (err < 0)
         return Error_set(err);
 
-    err = git_merge_analysis(&analysis, &preference, self->repo, (const git_merge_head **) &merge_head, 1);
-    git_merge_head_free(merge_head);
+    err = git_merge_analysis(&analysis, &preference, self->repo, (const git_annotated_commit **) &commit, 1);
+    git_annotated_commit_free(commit);
 
     if (err < 0)
         return Error_set(err);
@@ -561,7 +607,7 @@ PyDoc_STRVAR(Repository_merge__doc__,
 PyObject *
 Repository_merge(Repository *self, PyObject *py_oid)
 {
-    git_merge_head *oid_merge_head;
+    git_annotated_commit *commit;
     git_oid oid;
     int err;
     size_t len;
@@ -572,16 +618,16 @@ Repository_merge(Repository *self, PyObject *py_oid)
     if (len == 0)
         return NULL;
 
-    err = git_merge_head_from_id(&oid_merge_head, self->repo, &oid);
+    err = git_annotated_commit_lookup(&commit, self->repo, &oid);
     if (err < 0)
         return Error_set(err);
 
     checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
     err = git_merge(self->repo,
-                    (const git_merge_head **)&oid_merge_head, 1,
+                    (const git_annotated_commit **)&commit, 1,
                     &merge_opts, &checkout_opts);
 
-    git_merge_head_free(oid_merge_head);
+    git_annotated_commit_free(commit);
     if (err < 0)
         return Error_set(err);
 
@@ -1225,7 +1271,7 @@ Repository_TreeBuilder(Repository *self, PyObject *args)
         }
     }
 
-    err = git_treebuilder_create(&bld, tree);
+    err = git_treebuilder_new(&bld, self->repo, tree);
     if (must_free != NULL)
         git_tree_free(must_free);
 
@@ -1318,8 +1364,8 @@ Repository_create_note(Repository *self, PyObject* args)
     if (err < 0)
         return Error_set(err);
 
-    err = git_note_create(&note_id, self->repo, py_author->signature,
-                          py_committer->signature, ref,
+    err = git_note_create(&note_id, self->repo, ref, py_author->signature,
+                          py_committer->signature,
                           &annotated_id, message, force);
     if (err < 0)
         return Error_set(err);
@@ -1380,7 +1426,7 @@ Repository_reset(Repository *self, PyObject* args)
 
     err = git_object_lookup_prefix(&target, self->repo, &oid, len,
                                    GIT_OBJ_ANY);
-    err = err < 0 ? err : git_reset(self->repo, target, reset_type, NULL, NULL);
+    err = err < 0 ? err : git_reset(self->repo, target, reset_type, NULL, NULL, NULL);
     git_object_free(target);
     if (err < 0)
         return Error_set_oid(err, &oid, len);
@@ -1415,6 +1461,8 @@ PyMethodDef Repository_methods[] = {
     METHOD(Repository, listall_branches, METH_VARARGS),
     METHOD(Repository, create_branch, METH_VARARGS),
     METHOD(Repository, reset, METH_VARARGS),
+    METHOD(Repository, _from_c, METH_VARARGS),
+    METHOD(Repository, _disown, METH_NOARGS),
     {NULL}
 };
 
diff --git a/src/treebuilder.c b/src/treebuilder.c
index 5957040..dbec825 100644
--- a/src/treebuilder.c
+++ b/src/treebuilder.c
@@ -88,7 +88,7 @@ TreeBuilder_write(TreeBuilder *self)
     int err;
     git_oid oid;
 
-    err = git_treebuilder_write(&oid, self->repo->repo, self->bld);
+    err = git_treebuilder_write(&oid, self->bld);
     if (err < 0)
         return Error_set(err);
 
diff --git a/src/types.h b/src/types.h
index 937abdc..4b9c2a1 100644
--- a/src/types.h
+++ b/src/types.h
@@ -32,8 +32,8 @@
 #include <Python.h>
 #include <git2.h>
 
-#if !(LIBGIT2_VER_MAJOR == 0 && LIBGIT2_VER_MINOR == 21)
-#error You need a compatible libgit2 version (v0.21.x)
+#if !(LIBGIT2_VER_MAJOR == 0 && LIBGIT2_VER_MINOR == 22)
+#error You need a compatible libgit2 version (v0.22.x)
 #endif
 
 /*
@@ -47,6 +47,7 @@ typedef struct {
     git_repository *repo;
     PyObject *index;  /* It will be None for a bare repository */
     PyObject *config; /* It will be None for a bare repository */
+    int owned;    /* _from_c() sometimes means we don't own the C pointer */
 } Repository;
 
 
diff --git a/test/test_remote.py b/test/test_remote.py
index ee28743..f825cd6 100644
--- a/test/test_remote.py
+++ b/test/test_remote.py
@@ -71,19 +71,19 @@ class RepositoryTest(utils.RepoTestCase):
         remote = self.repo.remotes[1]
 
         self.assertEqual(name, remote.name)
-        remote.delete()
+        self.repo.remotes.delete(remote.name)
         self.assertEqual(1, len(self.repo.remotes))
 
     def test_remote_rename(self):
         remote = self.repo.remotes[0]
 
         self.assertEqual(REMOTE_NAME, remote.name)
-        problems = remote.rename('new')
+        problems = self.repo.remotes.rename(remote.name, "new")
         self.assertEqual([], problems)
-        self.assertEqual('new', remote.name)
+        self.assertNotEqual('new', remote.name)
 
-        self.assertRaises(ValueError, remote.rename, '')
-        self.assertRaises(ValueError, remote.rename, None)
+        self.assertRaises(ValueError, self.repo.remotes.rename, '', '')
+        self.assertRaises(ValueError, self.repo.remotes.rename, None, None)
 
 
     def test_remote_set_url(self):
@@ -183,13 +183,9 @@ class RepositoryTest(utils.RepoTestCase):
 
     def test_remote_save(self):
         remote = self.repo.remotes[0]
-
-        remote.rename('new-name')
         remote.url = 'http://example.com/test.git'
-
         remote.save()
 
-        self.assertEqual('new-name', self.repo.remotes[0].name)
         self.assertEqual('http://example.com/test.git',
                          self.repo.remotes[0].url)
 
@@ -278,11 +274,11 @@ class PushTestCase(unittest.TestCase):
             'refs/heads/master', tip.author, tip.author, 'empty commit',
             tip.tree.id, [tip.id]
         )
-        self.remote.push('refs/heads/master')
+        self.remote.push(['refs/heads/master'])
         self.assertEqual(self.origin[self.origin.head.target].id, oid)
 
     def test_push_when_up_to_date_succeeds(self):
-        self.remote.push('refs/heads/master')
+        self.remote.push(['refs/heads/master'])
         origin_tip = self.origin[self.origin.head.target].id
         clone_tip = self.clone[self.clone.head.target].id
         self.assertEqual(origin_tip, clone_tip)
@@ -298,7 +294,8 @@ class PushTestCase(unittest.TestCase):
             'refs/heads/master', tip.author, tip.author, 'other commit',
             tip.tree.id, [tip.id]
         )
-        self.assertRaises(pygit2.GitError, self.remote.push, 'refs/heads/master')
+
+        self.assertRaises(pygit2.GitError, self.remote.push, ['refs/heads/master'])
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/test/test_repository.py b/test/test_repository.py
index 72a5e64..7640f39 100644
--- a/test/test_repository.py
+++ b/test/test_repository.py
@@ -41,7 +41,7 @@ import sys
 
 # Import from pygit2
 from pygit2 import GIT_OBJ_ANY, GIT_OBJ_BLOB, GIT_OBJ_COMMIT
-from pygit2 import init_repository, clone_repository, clone_into, discover_repository
+from pygit2 import init_repository, clone_repository, discover_repository
 from pygit2 import Oid, Reference, hashfile
 import pygit2
 from . import utils
@@ -440,19 +440,22 @@ class CloneRepositoryTest(utils.NoRepoTestCase):
         self.assertFalse(repo.is_empty)
         self.assertTrue(repo.is_bare)
 
-    def test_clone_remote_name(self):
-        repo_path = "./test/data/testrepo.git/"
-        repo = clone_repository(
-            repo_path, self._temp_dir, remote_name="custom_remote")
-        self.assertFalse(repo.is_empty)
-        self.assertEqual(repo.remotes[0].name, "custom_remote")
+    def test_clone_repository_and_remote_callbacks(self):
+        src_repo_relpath = "./test/data/testrepo.git/"
+        repo_path = os.path.join(self._temp_dir, "clone-into")
+        url = 'file://' + os.path.realpath(src_repo_relpath)
 
-    def test_clone_into(self):
-        repo_path = "./test/data/testrepo.git/"
-        repo = init_repository(os.path.join(self._temp_dir, "clone-into"))
-        remote = repo.create_remote("origin", 'file://' + os.path.realpath(repo_path))
-        clone_into(repo, remote)
-        self.assertTrue('refs/remotes/origin/master' in repo.listall_references())
+        def create_repository(path, bare):
+            return init_repository(path, bare)
+
+        # here we override the name
+        def create_remote(repo, name, url):
+            return repo.remotes.create("custom_remote", url)
+
+        repo = clone_repository(url, repo_path, repository=create_repository, remote=create_remote)
+        self.assertFalse(repo.is_empty)
+        self.assertTrue('refs/remotes/custom_remote/master' in repo.listall_references())
+        self.assertIsNotNone(repo.remotes["custom_remote"])
 
     def test_clone_with_credentials(self):
         credentials = pygit2.UserPass("libgit2", "libgit2")