2021-11-05 v0.6

Some useful features and fixes in this release, include:

• two methods for Waku v2 node discovery
• support for unsecure websockets, which paves the way for native browser usage
• a fix for nim-waku store nodes running out of memory due to store size: the number of stored messages can now easily be configured
• a fix for densely connected nodes refusing new connections: the maximum number of allowed connections can now easily be configured
• support for larger message sizes (up from 64kb to 1Mb per message)

The full list of changes is below.

Features

• Waku v2 node discovery via DNS following EIP-1459
• Waku v2 node discovery via Node Discovery v5

Changes

• Pagination of historical queries are now simplified
• GossipSub prune backoff period is now the recommended 1 minute
• Bridge now uses content topic format according to 23/WAKU2-TOPICS
• Better internal differentiation between local and remote peer info
• Maximum number of libp2p connections is now configurable
• udp-port CLI option has been removed for binaries where it's not used
• Waku v2 now supports unsecure WebSockets
• Waku v2 now supports larger message sizes of up to 1 Mb by default
• Further experimental development of RLN for spam protection.
  These changes are disabled by default under a compiler flag. Changes include:
  • Per-message rate limit proof defined
  • RLN proof generation and verification integrated into Waku v2
  • RLN tree depth changed from 32 to 20
  • Support added for static membership group formation

Docs

• Added contributor guidelines on Waku v2 fleet monitoring and management
• Added basic tutorial on using Waku v2 DNS-based discovery

Fixes

• Bridge between toy-chat and matterbridge now shows correct announced addresses
• Bridge no longer re-encodes already encoded payloads when publishing to V1
• Bridge now populates WakuMessage timestamps when publishing to V2
• Store now has a configurable maximum number of stored messages
• Network simulations for Waku v1 and Waku v2 are runnable again

This release supports the following libp2p protocols:

Protocol	Spec status	Protocol id
17/WAKU-RLN	raw	/vac/waku/waku-rln-relay/2.0.0-alpha1
11/WAKU2-RELAY	stable	/vac/waku/relay/2.0.0
12/WAKU2-FILTER	draft	/vac/waku/filter/2.0.0-beta1
13/WAKU2-STORE	draft	/vac/waku/store/2.0.0-beta3
18/WAKU2-SWAP	draft	/vac/waku/swap/2.0.0-beta1
19/WAKU2-LIGHTPUSH	draft	/vac/waku/lightpush/2.0.0-beta1

The Waku v1 implementation is stable but not under active development.