2022-03-31 v0.9

Release highlights:

• Support for Peer Exchange (PX) when a peer prunes a 11/WAKU2-RELAY mesh due to oversubscription. This can significantly increase mesh stability.
• Improved start-up times through managing the size of the underlying persistent message storage.
• New websocket connections are no longer blocked due to parsing failures in other connections.

The full list of changes is below.

Features

• Support for bootstrapping 33/WAKU-DISCV5 via DNS discovery
• Support for GossipSub Peer Exchange

Changes

• Waku v1 <> v2 bridge now supports DNS multiaddrs
• Waku v1 <> v2 bridge now validates content topics before attempting to bridge a message from Waku v2 to Waku v1
• Persistent message storage now auto deletes messages once over specified --store-capacity. This can significantly improve node start-up times.
• Renamed Waku v1 <> v2 bridge make target and binary to wakubridge
• Increased store logging to assist with debugging
• Increased rln-relay logging to assist with debugging
• Message metrics no longer include the content topic as a dimension to keep Prometheus metric cardinality under control
• Waku v2 toy-chat application now sets the sender timestamp when creating messages
• The type of the proof field of the WakuMessage is changed to RateLimitProof
• Added method to the JSON-RPC API that returns the git tag and commit hash of the binary
• The node's ENR is now included in the JSON-RPC API response when requesting node info

Fixes

• Fixed incorrect conversion of seconds to nanosecond timestamps
• Fixed store queries blocking due to failure in resource clean up
• Fixed underlying issue where new websocket connections are blocked due to parsing failures in other connections
• Fixed failure to log the ENR necessary for a discv5 connection to the node

Docs

• Added RAM requirements to wakunode2 build instructions
• Added tutorial on communicating with waku2 test fleets via the chat2 toy-chat application in spam-protected mode using 17/WAKU-RLN-RELAY.
• Added a section on bug reporting to wakunode2 README
• Fixed broken links in the JSON-RPC API Tutorial

This release supports the following libp2p protocols:

Protocol	Spec status	Protocol id
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-beta4
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.