Let's Encrypt initially implemented partial support for what would eventually become a standard in RFC 8657 in May 2018 (ACME-CAA "validationmethods" support). This was deployed to staging, but deployment to production was halted as (multiple) problems were encountered.
Since then some years have passed and I believe that all issues originally blocking this have now been resolved? I would therefore like to ask if this is something that could be enabled in production in the near future. I really like the concept of being able to restrict issuance to certain challenges, so I'm really hoping that this is now ready to move into production.
[I just issued a test cert via HTTP-01 on a domain that has the new validationparameters set to dns-01 only. On staging I get "CAA record prevents issuance" as expected, but production issues the cert without complaining, so it's still not active there]