25 Apr
2026
25 Apr
'26
8:26 a.m.
- Source attaching
Sure, I object to this complication as well, but less than the namespace
reuse issues.
- Sending of multiple files in a single message (e.g.
to send photo
galleries), backwards compatible (legacy clients would see this as
multiple messages). This is implemented at least in Kaidan, WIP in
Dino.
Also supported not just by SIMS but even by OOB.
- Extension for proper E2EE (XEP-0448) when using
SCE-alike encryption
schemes (OX, OMEMO2), also backwards compatible (it's possible to send
a file in a chat where some clients only do siacs-OMEMO such that
OMEMO2+XEP-0448 clients see a proper SFS file transfer with metadata
and legacy siacs-OMEMO+XEP-0454 clients get the "aesgcm" link, but both
download and decrypt the same HTTP upload, so the file doesn't need to
be uploaded twice). This is implemented at least in Kaidan.
This seems like it would also be supported by SIMS and OOB once we have SCE.