The IETF’s DMARC Working Group has submitted documents to update the DMARC protocol to the RFC Editor. For reference, here is a high-level overview of the changes introduced in these updates:

• Informational ⇨ Standards Track
• Public Suffix List replaced by DNS Tree Walk and Public Suffix Domains (PSD)
• Several tags deprecated: pct=, rf=, ri=
• np= tag added for non-existent subdomain policy
• psd= tag brought from RFC 9091 (obsoleted)
• Report size limit notation removed from rua=
• DMARC SPF only uses MAIL FROM:, no fallback to HELO
• More guidance about PII/NPI risks in reporting

More information is available by checking the final drafts of the documents.