v1.7.3

Docker reference: paritytech/substrate-relay:v1.7.3

Bundled Chain Versions:

Rococo: 1_016_001;
Westend: 1_016_001;
Kusama: 1_002_004;
Polkadot: 1_003_003;
Rococo Bridge Hub: 1_016_001;
Westend Bridge Hub: 1_016_001;
Kusama Bridge Hub: 1_003_000;
Polkadot Bridge Hub: 1_003_003;
Rococo Bulletin: not supported yet;
Polkadot Bulletin: not supported yet.

What's Changed

• Update Polkadot BridgeHub to v1.3.3 by @serban300 in #3063

Full Changelog: v1.7.2...v1.7.3