2026-09-21 Messaging Weekly

Highlights

• Logos Delivery:
  • Documentation deliverables closed — see logos-delivery-module/latest and logos-chat-module/latest
  • v0.39.0-rc.3 tagged and signed off by DST
• Logos Chat:
  • AccountLog (#404) and Account Profile (#426) specifications merged
  • Identity model: ADR (#256) and AccountLog + Account implementation (#226) merged
• Logos Integrations:
  • logos-delivery-module v0.3.0-rc.1 released

Logos Delivery

Messaging API — General Availability

• [Deliverable] Reliability and scale validation with DST

  • achieved:
    • fix: run logosdeliverynode and rlnkeystore when available — follows the single-image rename (#4256)
    • v0.39.0-rc.3 signed off by DST
  • next:
    • Prepare Messaging API in REST for DST

• [Deliverable] Offline periods backfill — closed

  • achieved:
    • fix(messaging): drive backfill from kernel health events

• [Deliverable] Integrate Rate Limit Manager

  • achieved:
    • New MessageQueuedEvent over FFI and REST; surfaced by the module in #121

• [Deliverable] Integrate Mix into Messaging API — closed

  • achieved:
    • fix(health): report Disconnected when required mix is not ready — with anonymityLevel: Required, sends were parked while the node reported Connected

• [Deliverable] Provide documentation on the Messaging API — closed

  • achieved:
    • published at https://logos-co.github.io/logos-delivery-module/latest/

Reliable Channel API — Beta

• [Deliverable] Support different encryption for sync messages — closed

  • achieved:
    • test(channels): cover per-channel encryption
    • docs(examples): show per-channel encryption in Nim and C — parts 2/3 and 3/3 of #4231

• [Deliverable] Provide documentation on the Reliable Channel API — closed

  • achieved:
    • published at https://logos-co.github.io/logos-delivery-module/latest/

RLN on Logos Blockchain

• [Deliverable] Implement pluggable RLN membership interface

  • next:
    • Rewire RLN implementations to use the same RLN interface

• [Deliverable] Enable RLN in Logos Devnet

  • achieved:
    • Add config to disable rln proof validation
    • feat!: RLN comes from the network preset
    • show RLN state instead of configuring RLN
  • next:
    • deploy to logos.dev
  • blockers:
    • the RLN module depends on LEZ v0.2.5, and the hosted LEZ testnet hasn’t been upgraded yet

Logos Chat

Chat — Beta

• [Deliverable] Implement full identity model

  • achieved:
    • Identity Model ADR - https://github.com/logos-messaging/logos-chat/pull/256
    • Enable export of Account bytes for persistence - https://github.com/logos-messaging/logos-chat/pull/255#event-31604197159
    • Add support account registration caching - https://github.com/logos-messaging/chat-store/pull/8
    • AccountManager application - https://github.com/logos-co/logos-accountlog-ui

• [Deliverable] Stabilize and polish API

  • achieved:
    • Convo storage substrate - https://github.com/logos-messaging/logos-chat/pull/228
    • Chat UI bugs - https://github.com/logos-co/logos-chat-ui/issues/62

• [Deliverable] Deliver user-facing chat features

  • achieved:
    • Remove member functionality - https://github.com/logos-messaging/logos-chat/pull/269

• [Deliverable] Reliability testing with DST

  • blockers:
    • delayed until testing at scale makes sense

• [Deliverable] Design SDS and de-MLS integration

  • achieved:
    • Foward Secrecy compatible encryption scheme for SDS - https://github.com/logos-co/logos-lips/pull/455
    • https://github.com/logos-messaging/techproof-sds-fs

Logos Core

Logos Core Integration — Phase 3

• [Deliverable] Pluggable RLN membership

  • achieved:
    • Add enableValidation flag to rln preset — the module decides whether the node validates RLN proofs

• [Deliverable] Make discovery pluggable in Logos Delivery

  • next:
    • land the discovery PR train

• [Deliverable] Enable QUIC in logos.dev and logos.test

  • achieved:
    • fix(waku_core): accept QUIC-v1 peer addresses — parsePeerInfo kept only TCP/WebSocket parts, so a QUIC-only peer could not be an entry, static or service node; circuit-relay addresses now go through the same parser
  • next:
    • fix(waku_core): keep the tls part of a peer address, relay nits

Status

Status: Logos Delivery Integration

• [Deliverable] Integrate Messaging API in status-go
  • achieved:
    • cross-platform build path for linking Logos Delivery and SDS through Nimble:
      • sds-go-bindings: build and test on three platforms with a pinned toolchain
      • nim-sds: accept any Nim from 2.2.6 on

Maintenance

• achieved:
  • release: v0.39.0-rc.3 tagged
  • CI:
    • single ci-required gate
    • Windows exe and dll in parallel
    • GitHub artifacts fallback when quay.io is down
    • rln-simulator fails fast without a node binary
  • make sure partitions are created, share one readiness listener helper
  • deps:
    • bump nim-libp2p to v2.3.3
    • explain why yamux connections and writes fail
    • nim-ffi:
      • map Nim strings to const char*
      • close a thread’s dispatcher with chronos’ closeThreadDispatcher
  • prepend instead of overwrite the runpath
  • feat: in-process simulator for relay and layer scale testing — real nodes in one process, complementing the docker-compose stack: 3000 nodes on an in-memory transport for relay/gossipsub, 200 for kernel, messaging and channels
• next:
  • keep relay topic health in sync with mesh changes