2026-06-22 Messaging Weekly

Highlights §

• Logos Delivery:
  • Added support for QUIC transport

Logos Delivery §

Messaging API — General Availability §

• [Deliverable] Stabilize and improve Messaging API, fix bugs
  • achieved:
    • Messaging backfill from store only when regaining connectivity
  • next:
    • feat: add LogosDelivery orchestrator as project entry point for FFI
    • fix: retry send tasks stuck in Entry state
    • fix: Cap store checks on propagated messages by MessagingClient

Reliable Channel API — Developer Preview §

• [Deliverable] Implement Reliable Channel API
  • achieved:
    • chore: address deferred SDS-handler review comments from #3942
  • next:
    • Create first phase of interop tests for reliable channel API

Reliable Channel API — General Availability §

• [Deliverable] Implement RLN membership management in nwaku library

  • achieved:
    • Add tests for merkle root and proof updates
  • next:
    • chore: Reduce RLN test execution duration

• Add Rate Limit Manager to Reliable Channel API

  • next:
    • move rate_limit_manager to messaging layer

Support QUIC Transport in Logos Delivery §

• [Deliverable] Trial QUIC
  • achieved:
    • feat: QUIC transport support
    • QA-reproducible QUIC-in-Logos-Delivery used in Logos Delivery Simulator to validate QUIC support
      • logos-delivery-simulator guide for QUIC demonstration
      • PR in logos-delivery-simulator to enable QUIC support

RLN for lightpush §

• [Deliverable] Improve RLN UX by reducing contract interactions
  • achieved:
    • create tests to verify RLN use for lightpush
  • next:
    • optimise RPC calls for lightpush client message rejection
    • isolate RLN in a separate self-contained module that can be used by any protocol (relay, lightpush, etc.)

Fleet stability §

• [Deliverable] Resolve known fleet stability issues
  • next:
    • fix(discovery): prune stale discv5 peers from peer store so PX stops serving dead ENRs

Logos Chat §

Chat — Group Conversations §

• [Deliverable] Add Group Chat

  • achieved:
    • Add Identified trait for Convo handling - https://github.com/logos-messaging/libchat/pull/138
    • Introduce Delegate Signer + Sender attribution - https://github.com/logos-messaging/libchat/pull/143
    • Streamline MLS config - https://github.com/logos-messaging/libchat/pull/141

• Implement simple identity model

  • achieved:
    • Cleanup registry implementations for easier maintenance - https://github.com/logos-messaging/libchat/pull/136
    • Make 1:1 Chats support Multi-device
    • Enable new DirectConvo type in Client - https://github.com/logos-messaging/libchat/pull/140
    • Add Account <—> Delegate verification - https://github.com/logos-messaging/libchat/pull/142

Status §

Integrate logos-delivery in Status §

• [Deliverable] Integrate Messaging API in status-go
  • achieved:
    • Investigate flaky light-client functional tests
    • Status-owned MessageSentCheck
    • Remove missing message verification
    • drop Version/PeerCount and move GetCurrentTime to transport
  • next:
    • feat: add status.prod network preset (cluster 16, RLN off)
    • feat: allow overriding actual shard values in auto-sharding

Maintenance §

• achieved:
  • Workaround MacOS build issue caused by between new bearssl 0.2.9 and chronos
  • chore: simplify release process — merge deploy into prepare_release
  • fix compilation problem in new discovery branch
• next:
  • chore: prepare release v0.39.0
  • API design
    • Structured API layers
      • POC: structured api interface
      • fix: Structured API Layers PR review (suggested fixes)