We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Version Scheme Change
We've talked on and off for quite a few years about our versioning scheme for `cryptography`, but #5771 made it very clear that despite our [versioning documentation](https://cryptography.io/en/latest/api-stability.html#versioning) some users still assume it's [SemVer](https://semver.org) and are caught off guard by changes. I propose that we **switch to a [CalVer](https://calver.org) scheme** for the thirty fifth feature release (which we currently would call 3.5). This has the advantage of being unambiguously not semantic versioning but encoding some vaguely useful information (the year of release) in it.

### Alternate Choices
**Stay the course**
We've successfully used our versioning scheme for a bit over 7 years now and the probability of another monumental shift like this is low. There is, however, a constant (but low) background radiation of people who are tripped up by making assumptions about our versioning so I would argue against this choice.

**SemVer**
Switch to using an actual semantic versioning scheme. Without re-litigating years of conversations, I don't believe either @alex or myself are interested in this option. (See https://github.com/pyca/cryptography/issues/5801#issuecomment-776067787 for a bit of elaboration on our position)

**Firefox/Chrome Versioning**
(From @alex)
"Its merits are that it's technically semver compatible, it's fairly predictable, and it communicates at least a little info on the relative age of the project.

Its demerits are that it probably won't solve the real problem here, which was that folks were surprised a major change happened at all."

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `src/cryptography/__about__.py`
Content:
```
1 # This file is dual licensed under the terms of the Apache License, Version
2 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
3 # for complete details.
4 
5 
6 __all__ = [
7     "__title__",
8     "__summary__",
9     "__uri__",
10     "__version__",
11     "__author__",
12     "__email__",
13     "__license__",
14     "__copyright__",
15 ]
16 
17 __title__ = "cryptography"
18 __summary__ = (
19     "cryptography is a package which provides cryptographic recipes"
20     " and primitives to Python developers."
21 )
22 __uri__ = "https://github.com/pyca/cryptography"
23 
24 __version__ = "3.5.dev1"
25 
26 __author__ = "The Python Cryptographic Authority and individual contributors"
27 __email__ = "cryptography-dev@python.org"
28 
29 __license__ = "BSD or Apache License, Version 2.0"
30 __copyright__ = "Copyright 2013-2021 {}".format(__author__)
31
```

Path: `vectors/cryptography_vectors/__about__.py`
Content:
```
1 # This file is dual licensed under the terms of the Apache License, Version
2 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
3 # for complete details.
4 
5 __all__ = [
6     "__title__",
7     "__summary__",
8     "__uri__",
9     "__version__",
10     "__author__",
11     "__email__",
12     "__license__",
13     "__copyright__",
14 ]
15 
16 __title__ = "cryptography_vectors"
17 __summary__ = "Test vectors for the cryptography package."
18 
19 __uri__ = "https://github.com/pyca/cryptography"
20 
21 __version__ = "3.5.dev1"
22 
23 __author__ = "The Python Cryptographic Authority and individual contributors"
24 __email__ = "cryptography-dev@python.org"
25 
26 __license__ = "BSD or Apache License, Version 2.0"
27 __copyright__ = "Copyright 2013-2021 %s" % __author__
28
```
--- 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/src/cryptography/__about__.py b/src/cryptography/__about__.py
--- a/src/cryptography/__about__.py
+++ b/src/cryptography/__about__.py
@@ -21,7 +21,7 @@
 )
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "3.5.dev1"
+__version__ = "35.0.0.dev1"
 
 __author__ = "The Python Cryptographic Authority and individual contributors"
 __email__ = "cryptography-dev@python.org"
diff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py
--- a/vectors/cryptography_vectors/__about__.py
+++ b/vectors/cryptography_vectors/__about__.py
@@ -18,7 +18,7 @@
 
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "3.5.dev1"
+__version__ = "35.0.0.dev1"
 
 __author__ = "The Python Cryptographic Authority and individual contributors"
 __email__ = "cryptography-dev@python.org"

{"golden_diff": "diff --git a/src/cryptography/__about__.py b/src/cryptography/__about__.py\n--- a/src/cryptography/__about__.py\n+++ b/src/cryptography/__about__.py\n@@ -21,7 +21,7 @@\n )\n __uri__ = \"https://github.com/pyca/cryptography\"\n \n-__version__ = \"3.5.dev1\"\n+__version__ = \"35.0.0.dev1\"\n \n __author__ = \"The Python Cryptographic Authority and individual contributors\"\n __email__ = \"cryptography-dev@python.org\"\ndiff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py\n--- a/vectors/cryptography_vectors/__about__.py\n+++ b/vectors/cryptography_vectors/__about__.py\n@@ -18,7 +18,7 @@\n \n __uri__ = \"https://github.com/pyca/cryptography\"\n \n-__version__ = \"3.5.dev1\"\n+__version__ = \"35.0.0.dev1\"\n \n __author__ = \"The Python Cryptographic Authority and individual contributors\"\n __email__ = \"cryptography-dev@python.org\"\n", "issue": "Version Scheme Change\nWe've talked on and off for quite a few years about our versioning scheme for `cryptography`, but #5771 made it very clear that despite our [versioning documentation](https://cryptography.io/en/latest/api-stability.html#versioning) some users still assume it's [SemVer](https://semver.org) and are caught off guard by changes. I propose that we **switch to a [CalVer](https://calver.org) scheme** for the thirty fifth feature release (which we currently would call 3.5). This has the advantage of being unambiguously not semantic versioning but encoding some vaguely useful information (the year of release) in it.\r\n\r\n### Alternate Choices\r\n**Stay the course**\r\nWe've successfully used our versioning scheme for a bit over 7 years now and the probability of another monumental shift like this is low. There is, however, a constant (but low) background radiation of people who are tripped up by making assumptions about our versioning so I would argue against this choice.\r\n\r\n**SemVer**\r\nSwitch to using an actual semantic versioning scheme. Without re-litigating years of conversations, I don't believe either @alex or myself are interested in this option. (See https://github.com/pyca/cryptography/issues/5801#issuecomment-776067787 for a bit of elaboration on our position)\r\n\r\n**Firefox/Chrome Versioning**\r\n(From @alex)\r\n\"Its merits are that it's technically semver compatible, it's fairly predictable, and it communicates at least a little info on the relative age of the project.\r\n\r\nIts demerits are that it probably won't solve the real problem here, which was that folks were surprised a major change happened at all.\"\n", "before_files": [{"content": "# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\n\n__all__ = [\n    \"__title__\",\n    \"__summary__\",\n    \"__uri__\",\n    \"__version__\",\n    \"__author__\",\n    \"__email__\",\n    \"__license__\",\n    \"__copyright__\",\n]\n\n__title__ = \"cryptography\"\n__summary__ = (\n    \"cryptography is a package which provides cryptographic recipes\"\n    \" and primitives to Python developers.\"\n)\n__uri__ = \"https://github.com/pyca/cryptography\"\n\n__version__ = \"3.5.dev1\"\n\n__author__ = \"The Python Cryptographic Authority and individual contributors\"\n__email__ = \"cryptography-dev@python.org\"\n\n__license__ = \"BSD or Apache License, Version 2.0\"\n__copyright__ = \"Copyright 2013-2021 {}\".format(__author__)\n", "path": "src/cryptography/__about__.py"}, {"content": "# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\n__all__ = [\n    \"__title__\",\n    \"__summary__\",\n    \"__uri__\",\n    \"__version__\",\n    \"__author__\",\n    \"__email__\",\n    \"__license__\",\n    \"__copyright__\",\n]\n\n__title__ = \"cryptography_vectors\"\n__summary__ = \"Test vectors for the cryptography package.\"\n\n__uri__ = \"https://github.com/pyca/cryptography\"\n\n__version__ = \"3.5.dev1\"\n\n__author__ = \"The Python Cryptographic Authority and individual contributors\"\n__email__ = \"cryptography-dev@python.org\"\n\n__license__ = \"BSD or Apache License, Version 2.0\"\n__copyright__ = \"Copyright 2013-2021 %s\" % __author__\n", "path": "vectors/cryptography_vectors/__about__.py"}], "after_files": [{"content": "# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\n\n__all__ = [\n    \"__title__\",\n    \"__summary__\",\n    \"__uri__\",\n    \"__version__\",\n    \"__author__\",\n    \"__email__\",\n    \"__license__\",\n    \"__copyright__\",\n]\n\n__title__ = \"cryptography\"\n__summary__ = (\n    \"cryptography is a package which provides cryptographic recipes\"\n    \" and primitives to Python developers.\"\n)\n__uri__ = \"https://github.com/pyca/cryptography\"\n\n__version__ = \"35.0.0.dev1\"\n\n__author__ = \"The Python Cryptographic Authority and individual contributors\"\n__email__ = \"cryptography-dev@python.org\"\n\n__license__ = \"BSD or Apache License, Version 2.0\"\n__copyright__ = \"Copyright 2013-2021 {}\".format(__author__)\n", "path": "src/cryptography/__about__.py"}, {"content": "# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\n__all__ = [\n    \"__title__\",\n    \"__summary__\",\n    \"__uri__\",\n    \"__version__\",\n    \"__author__\",\n    \"__email__\",\n    \"__license__\",\n    \"__copyright__\",\n]\n\n__title__ = \"cryptography_vectors\"\n__summary__ = \"Test vectors for the cryptography package.\"\n\n__uri__ = \"https://github.com/pyca/cryptography\"\n\n__version__ = \"35.0.0.dev1\"\n\n__author__ = \"The Python Cryptographic Authority and individual contributors\"\n__email__ = \"cryptography-dev@python.org\"\n\n__license__ = \"BSD or Apache License, Version 2.0\"\n__copyright__ = \"Copyright 2013-2021 %s\" % __author__\n", "path": "vectors/cryptography_vectors/__about__.py"}]}