We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
New release
Hi,

When is coming new release, because I can't update to mongodb 4.2 because of this: https://github.com/MongoEngine/mongoengine/pull/2160/commits/47f8a126ca167cb8fe020e3cc5604b155dfcdebc.

Thanks

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `mongoengine/__init__.py`
Content:
```
1 # Import submodules so that we can expose their __all__
2 from mongoengine import connection
3 from mongoengine import document
4 from mongoengine import errors
5 from mongoengine import fields
6 from mongoengine import queryset
7 from mongoengine import signals
8 
9 # Import everything from each submodule so that it can be accessed via
10 # mongoengine, e.g. instead of `from mongoengine.connection import connect`,
11 # users can simply use `from mongoengine import connect`, or even
12 # `from mongoengine import *` and then `connect('testdb')`.
13 from mongoengine.connection import *
14 from mongoengine.document import *
15 from mongoengine.errors import *
16 from mongoengine.fields import *
17 from mongoengine.queryset import *
18 from mongoengine.signals import *
19 
20 
21 __all__ = (
22     list(document.__all__)
23     + list(fields.__all__)
24     + list(connection.__all__)
25     + list(queryset.__all__)
26     + list(signals.__all__)
27     + list(errors.__all__)
28 )
29 
30 
31 VERSION = (0, 18, 2)
32 
33 
34 def get_version():
35     """Return the VERSION as a string.
36 
37     For example, if `VERSION == (0, 10, 7)`, return '0.10.7'.
38     """
39     return ".".join(map(str, VERSION))
40 
41 
42 __version__ = get_version()
43
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/mongoengine/__init__.py b/mongoengine/__init__.py
--- a/mongoengine/__init__.py
+++ b/mongoengine/__init__.py
@@ -28,7 +28,7 @@
 )
 
 
-VERSION = (0, 18, 2)
+VERSION = (0, 19, 0)
 
 
 def get_version():

{"golden_diff": "diff --git a/mongoengine/__init__.py b/mongoengine/__init__.py\n--- a/mongoengine/__init__.py\n+++ b/mongoengine/__init__.py\n@@ -28,7 +28,7 @@\n )\n \n \n-VERSION = (0, 18, 2)\n+VERSION = (0, 19, 0)\n \n \n def get_version():\n", "issue": "New release\nHi,\r\n\r\nWhen is coming new release, because I can't update to mongodb 4.2 because of this: https://github.com/MongoEngine/mongoengine/pull/2160/commits/47f8a126ca167cb8fe020e3cc5604b155dfcdebc.\r\n\r\nThanks\n", "before_files": [{"content": "# Import submodules so that we can expose their __all__\nfrom mongoengine import connection\nfrom mongoengine import document\nfrom mongoengine import errors\nfrom mongoengine import fields\nfrom mongoengine import queryset\nfrom mongoengine import signals\n\n# Import everything from each submodule so that it can be accessed via\n# mongoengine, e.g. instead of `from mongoengine.connection import connect`,\n# users can simply use `from mongoengine import connect`, or even\n# `from mongoengine import *` and then `connect('testdb')`.\nfrom mongoengine.connection import *\nfrom mongoengine.document import *\nfrom mongoengine.errors import *\nfrom mongoengine.fields import *\nfrom mongoengine.queryset import *\nfrom mongoengine.signals import *\n\n\n__all__ = (\n    list(document.__all__)\n    + list(fields.__all__)\n    + list(connection.__all__)\n    + list(queryset.__all__)\n    + list(signals.__all__)\n    + list(errors.__all__)\n)\n\n\nVERSION = (0, 18, 2)\n\n\ndef get_version():\n    \"\"\"Return the VERSION as a string.\n\n    For example, if `VERSION == (0, 10, 7)`, return '0.10.7'.\n    \"\"\"\n    return \".\".join(map(str, VERSION))\n\n\n__version__ = get_version()\n", "path": "mongoengine/__init__.py"}], "after_files": [{"content": "# Import submodules so that we can expose their __all__\nfrom mongoengine import connection\nfrom mongoengine import document\nfrom mongoengine import errors\nfrom mongoengine import fields\nfrom mongoengine import queryset\nfrom mongoengine import signals\n\n# Import everything from each submodule so that it can be accessed via\n# mongoengine, e.g. instead of `from mongoengine.connection import connect`,\n# users can simply use `from mongoengine import connect`, or even\n# `from mongoengine import *` and then `connect('testdb')`.\nfrom mongoengine.connection import *\nfrom mongoengine.document import *\nfrom mongoengine.errors import *\nfrom mongoengine.fields import *\nfrom mongoengine.queryset import *\nfrom mongoengine.signals import *\n\n\n__all__ = (\n    list(document.__all__)\n    + list(fields.__all__)\n    + list(connection.__all__)\n    + list(queryset.__all__)\n    + list(signals.__all__)\n    + list(errors.__all__)\n)\n\n\nVERSION = (0, 19, 0)\n\n\ndef get_version():\n    \"\"\"Return the VERSION as a string.\n\n    For example, if `VERSION == (0, 10, 7)`, return '0.10.7'.\n    \"\"\"\n    return \".\".join(map(str, VERSION))\n\n\n__version__ = get_version()\n", "path": "mongoengine/__init__.py"}]}