Deprecating auto-dnssec and inline-signing in 9.18+

[Matthijs Mekking]

Hi users,

We are planning to deprecate the options 'auto-dnssec' and 
'inline-signing' in BIND 9.18. The reason for this is because 
'dnssec-policy' is the preferred way of maintaining your DNSSEC zone.

Deprecating means that you can still use the options in 9.18, but a 
warning will be logged and it is very likely that the options will be 
removed in BIND 9.20.

We would like to encourage you to change your configurations to 
'dnssec-policy'. See this KB article for migration help:

     https://kb.isc.org/docs/dnssec-key-and-signing-policy

Do you have reasons for keeping 'inline-signing' or 'auto-dnssec' 
configurations? Is there a use case that is not (yet) covered by 
'dnssec-policy'? Any other concerns? Please let us know.

Best regards,

Matthijs