2026-10-19 Messaging Weekly

Highlights

• Logos Delivery:
  • the message-sending machinery was rewritten: concurrent sends, one task pipeline for mix, RLN, ephemeral and reliability (#4517)
  • codecs moved to proto3 and minprotobuf is retired (#4488)

Logos Delivery

Messaging API — General Availability

• [Deliverable] Address Messaging API issues found by DST
  • achieved:
    • fix(messaging): don’t subscribe on a send above the None level (#4417)
    • fix(messaging): don’t defer a send that is too large for mix (#4418)
    • fix(conf): accept anonymity-level in messagingOverrides (#4582)
    • refuse API calls on a node that is not started (#4586)
    • free the REST and metrics ports on stop (#4585)
    • document that stop_node keeps the event listeners (#4583)
  • next:
    • multiple fixes in nim-libp2p-mix (#4411, #4412, #4413, #4414, #4415, #4416)

Delivery — Released Monthly

• [Deliverable] Release logos-delivery v0.40
  • next:
    • bump deps for v0.40.0 (#4579)

Delivery — Technical Debt Halved

• [Deliverable] Close baseline technical debt issues
  • achieved:
    • move the codecs to proto3 and retire minprotobuf (#4488)
    • bound the size of store, lightpush and sync reads (#4489)
    • deprecate the archive capacity retention policy (#4593)
    • relay, sharding and CLI conformance:
      • don’t hand a duplicate publish to own handlers again (#4519)
      • content-topic unsubscribe keeps other topics on the shard (#4518)
      • subscribe to configured shards on start under static sharding (#4516)
      • --shard limits the relay shards under autosharding (#4513)
      • refuse shards of another cluster (#4514)
      • stop mapping --cluster-id=2 to the logos.dev preset (#4515)
      • let --preset set max-msg-size (#4567)
      • keep topic health in sync across stop/start (#4568)
      • relay a message encoded at the max message size (#4578)
      • keep connected peers out of CannotConnect (#4512)
    • non-My getNodeInfo ids with the old ones as deprecated aliases (#4577, module#168)

Store Sync — DST Signed Off

• [Deliverable] Review implementation of Store Sync protocol
  • achieved:
    • follow the WAKU-SYNC wire formats (#4571)
    • clamp the ranges of sessions started by a peer (#4535) and of our own to the time retention (#4478)
    • transfer reads up to --max-msg-size and reset oversized sessions (#4547)
    • skip messages a peer refused as too large (#4562)
    • let a stop end the transfer loop (#4551)
    • create the partitions for the hours before the node start (#4524)

Logos Chat

Chat — Accounts Persisted

• [Deliverable] Persist accounts and installations
  • achieved:
    • update ChatCLI to support multiple accounts (#285)

Status

Status: Logos Delivery Integration

• [Deliverable] Status: prepare the network for the Messaging API

  • achieved:
    • bump logos-delivery to v0.39.2 in status-go (#7936) and in Status App (#22798)
    • drop the legacy-store protocol on prod (infra-status#71)
    • Deploy v0.39.1 in the status fleet (#4371) closed

• [Deliverable] Status: build and link Logos Delivery in status-go and status-app

  • achieved:
    • make the nim-ffi request payload cap opt-in (#234, nim-sds#109)

• [Deliverable] Messaging API: close the gaps Status needs

  • achieved:
    • rewrite the messaging send tasks for concurrency (#4517, closes #4328)

Maintenance

• achieved:
  • status.prod outage: v0.39.1 store nodes froze on Postgres (#4526):
    • a synchronous PQprepare blocked the event loop behind a queued partition DDL (#4531)
    • hash-only queries planned every messages_lookup partition and ran for up to 1,750s (#4532)
    • v0.39.2 changelog (#4546)
  • upstream gossipsub:
    • check the seen-cache before local delivery on publish (libp2p#3270)
    • don’t re-deliver already-seen published messages locally (libp2p#3275)
  • nim-ffi poll model:
    • let a host poll a context for its events (#199)
    • answer requests through poll with an id per request (#200)
    • give the C exports a request id instead of a callback (#201)
  • delivery-module v0.3.3 released (module#166)
  • observability fixes:
    • wakucanary uses the Store v3 tag and fails when protocols were never checked (#4549, #4536)
    • stop setting unbounded values into metric labels (#4548)
    • drop the discovered-per-shard metric (#4587)
    • bump kuma’s wakucanary to a current logos-delivery (infra-hq#322)
• next:
  • bootstrap logos.dev plugin Kademlia from libp2p_module hosts (#4581)