2026-04-13 Messaging Weekly

Highlights §

• Logos Delivery:
  • [Deliverable] Migrate logos-delivery to Nimble
  • [Deliverable] Migrate nim-sds to Nimble

Logos Delivery §

Reliable Channel API — Developer Preview §

• [Deliverable] Implement Reliable Channel API

  • next:
    • Complete Reliable Channel API spec
    • Auto-retrieve feature that handles retrieval of offline-time-window periods (first PoC in progress and pending to add it to the API spec mentioned in the first point)

• [Deliverable] Implement SDS-Repair

  • next:
    • First implementation of SDS-R, WIP

QUIC Transport in Logos Delivery §

• [Deliverable] Trial QUIC
  • next:
    • QUIC validation PoC

Fleet Stability §

• [Deliverable] Resolve known fleet stability issues
  • achieved:
    • review why uptime waku.sandbox HK is red even though the node is running properly

Nimble Migration §

• [Deliverable] Migrate logos-delivery to Nimble
  • achieved:
    • Start using Nimble in logos-delivery

Logos Chat §

Chat — Group Conversations §

• [Deliverable] Add Group Chat

  • achieved:
    • Refactoring storage operations

• [Deliverable] Remove unnecessary Nim shim from Logos Chat

  • next:
    • Prepare an example app of running Logos Chat with Logos Delivery

Logos Core §

Initial Integration to Logos Core §

• [Deliverable] Deploy required fleets for Testnet
  • next:
    • Replace logos-waku-module with logos-delivery-module in logos.dev fleet

Logos Core Integration — Phase 2 §

• [Deliverable] Integrate Chat and Delivery Logos Core modules
  • next:
    • Integrate Delivery module as transport of Chat module

Status §

Status: Foundation for Communities Optimization §

• [Deliverable] Define and implement sharding for Communities messages
  • achieved:
    • Remove communities sharding

Maintenance §

• achieved:
  • Fix recv_service delivers store-recovered messages
  • Fix BearSSL and NAT lib build reproducibility
  • Prefer reusing service peers across shards in edge filter reconciliation
  • Create release v0.38.0
• next:
  • Review start/stop protocols if they’re mounted before switch is started
  • bug: num-shards-in-network and shard params are not working properly when preset override happens
  • bug: Peers stats count looks inconsistent (/admin/v1/peers/stats)
  • use EWMA to show main loop lag information