What's Changed
* CheckMetadataHash signed extension support by arjanz in https://github.com/polkascan/py-substrate-interface/pull/392
* Increase max version allowed for eth-utils by yabirgb in https://github.com/polkascan/py-substrate-interface/pull/388
CheckMetadataHash signed extension support
The `CheckMetadataHash` signed extension enables the new metadata hash verification feature that was approved as
[RFC78](https://polkadot-fellows.github.io/RFCs/approved/0078-merkleized-metadata.html).
See https://github.com/polkadot-fellows/runtimes/pull/337
This PR only allow mode is `Disabled` for now, but ensures compatibility with upcoming Kusama/Polkadot release.
New Contributors
* yabirgb made their first contribution in https://github.com/polkascan/py-substrate-interface/pull/388
**Full Changelog**: https://github.com/polkascan/py-substrate-interface/compare/v1.7.8...v1.7.9