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osmaczko 2a1ed26282 feat: name the group state each member holds

A GroupV2 group can divide into branches that never converge again, and no member can tell from its own view that it happened: both halves keep a roster and an epoch number, each simply stops being able to read what the other sends, and a fresh split leaves both carrying the same members. A member that has merely fallen behind produces the same endless run of undecryptable frames, from a different cause needing a different fix, and nothing separates the two.

MLS derives a value for exactly this comparison, meant to be compared out of band: at one epoch number, different epoch authenticators are a fork and identical ones are real convergence.

Write it once per epoch a conversation reaches, so a run leaves behind the one thing that partitions its members.

2026-08-24 18:23:34 +02:00

account

chore: walk the device bundle in fixed-size chunks

2026-08-21 09:25:20 +02:00

conversations

feat: name the group state each member holds

2026-08-24 18:23:34 +02:00

crypto

chore: add cargo-deny for supply-chain, license, and advisory linting (#215 )

2026-08-18 19:06:22 +02:00

double-ratchets

chore: add cargo-deny for supply-chain, license, and advisory linting (#215 )