What's Changed
* Add streamerror to arcane connector by george-zubrienko in https://github.com/SneaksAndData/proteus/pull/126
* Add methods AzureStorageClient.delete_blob and AzureStorageClient.list_blobs by JanusAsmussen in https://github.com/SneaksAndData/proteus/pull/125
**Full Changelog**: https://github.com/SneaksAndData/proteus/compare/v0.6.20...v0.6.21