v0.2.0

This is a pre-release compatible with the Polkadot v0.6 runtime API.

New Features

• compatible with Polkadot v0.6 runtime API
• complete GRANDPA implementation, including networking and catch-up
• preliminary polkadot.js compatibility with v1.34.1; able to query node
• support for multiple wasm backends, currently supports go-wasmer and go-wasmtime
• transaction pool maintainence on chain re-orgs
• add noise support to networking layer
• handle runtime-to-consensus engine digests
• add profiling options --cpuprof and --memprof

Improvements

• use network sub-protocols for block requests and responses (/sync/2) and block announces (/block-announces/1)
• update built-in keys to match subkey; eg. --key alice now matches subkey inspect //Alice
• maximum block response size for syncing increased to 128 from 16
• add configuration options for package log levels

initial release

this implementation includes:

• BABE block production
• ability to sync blocks and state between multiple nodes (for both block-producing and non-block-producing nodes)
• SCALE encoding package
• polkadot-compatible trie implemenation
• preliminary command-line documentation
• preliminary polkadot-compatible RPC implementation

note that the wasm runtime it uses is the substrate test runtime for substrate@v0.6, which is not an official substrate runtime.