python-openstackclient/releasenotes/notes/keypair-create-client-side-...

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---
features:
- |
The ``openstack keypair create`` command will now generate keypairs on the
client side in ssh-ed25519 format. The Compute service no longer supports
server-side key generation starting with ``--os-compute-api-version 2.92``
while the use of ssh-ed25519 is necessary as support for ssh-rsa has been
disabled by default starting in OpenSSH 8.8, which prevents its use in
guests using this version of OpenSSH in the default configuration.
ssh-ed25519 support is widespread and is supported by OpenSSH 6.5 or later
and Dropbear 2020.79 or later.