What's Changed
* Added signed extensions support by arjanz in https://github.com/polkascan/py-substrate-interface/pull/163
* Fixed incorrect key generation when using numeric derivation paths 157
* Added create_scale_object convenience method polkascan/py-scale-codec64
* Removed block caching 158
**Full Changelog**: https://github.com/polkascan/py-substrate-interface/compare/v1.1.1...v1.1.2