The announcement explains the rationale. If you don't like it, volunteer to pay for ongoing maintenance. What system do you still need to access where your us

The announcement explains the rationale. If you don't like it, volunteer to pay for ongoing maintenance. What system do you still need to access where your user has a DSA key? Why can't you generate an RSA-2048 key, like you should've done over a decade ago? The server might've generated a DSA host key, along with an RSA host key, but that won't prevent you from connecting, it'll just use the RSA one if your client only supports RSA (of {RSA, DSA}). If you purposely disabled RSA host keys so that it only has a DSA host key, it's time to generate an RSA host key and configure its use, just like an RSA key for the account you need to continue to access. If you don't know of any such systems but you're worried you might run into one in the future, nothing is stopping you from using an old distro livecd to access such an old and insecure ssh server.