IANA Registry Updates for TLS and DTLS
RFC 9847, “IANA Registry Updates for TLS and DTLS”, is a Proposed Standard document published in December 2025 by J. Salowey, S. Turner. It updates RFC 8447. The canonical text is published by the RFC Editor.
Abstract
This document updates the changes to the TLS and DTLS IANA registries made in RFC 8447. It adds a new value, "D" for discouraged, to the "Recommended" column of the selected TLS registries and adds a "Comment" column to all active registries that do not already have a "Comment" column. Finally, it updates the registration request instructions.
This document updates RFC 8447.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9847 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9844 Entering IPv6 Zone Identifiers in User Interfaces
- RFC 9843 IGP Flexible Algorithms: Bandwidth, Delay, Metrics, and Constraints
- RFC 9842 Compression Dictionary Transport
- RFC 9841 Shared Brotli Compressed Data Format
- RFC 9840 rLEDBAT: Receiver-Driven Low Extra Delay Background Transport for TCP
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