* Use timezone aware functionality when using cryptography >= 42.0.0.
* Adjust OpenSSH certificate code to avoid functions deprecated in Python 3.12.
* Strip timezone info from isoformat() output.
* InvalidityDate.invalidity_date currently has no _utc variant.
* Prepare IDNA/Unicode conversion code. Use to normalize input.
* Use IDNA library first (IDNA2008) and Python's IDNA2003 implementation as a fallback.
* Make sure idna is installed.
* Add changelog fragment.
* 'punycode' → 'idna'.
* Add name_encoding options and tests.
* Avoid invalid character for IDNA2008.
* Linting.
* Forgot to upate value.
* Work around cryptography bug. Fix port handling for URIs.
* Forgot other place sensitive to cryptography bug.
* Forgot one. (Will likely still fail.)
* Decode IDNA in _compress_entry() to avoid comparison screw-ups.
* Work around Python 3.5 problem in Ansible 2.9's default test container.
* Update changelog fragment.
* Fix error, add tests.
* Python 2 compatibility.
* Update requirements.
