Version 0.5.0 of XEP-0420 (Stanza Content Encryption) has been released. Abstract: The Stanza Content Encryption (SCE) protocol is intended as a way to allow clients to securely exchange arbitrary extension elements using different end-to-end encryption schemes. Changelog: The time affix uses the DateTime profile of XEP-0082 Longer rpads MUST NOT be rejected Add a minimum size target for random padding to add resistance against potential correlation attacks in case of short content and 0-length rpad Removed unhelpful Implementation Note warning about injection of decrypted stanzas Clarify fallback body policy Fix descriptions to apply to all stanzas instead of just messages Remove questionable SHOULD in the time affix handling and clarify the affix'es verification Request the registrar to provide a list of exclusively server- processed elements List XEP dependencies Add XML schema (syndace) URL: https://xmpp.org/extensions/xep-0420.html Note: The information in the XEP list at https://xmpp.org/extensions/ is updated by a separate automated process and may be stale at the time this email is sent. The XEP documents linked herein are up-to- date.