Syncs v1.1.1 Release Notes

Release Date: 2019-05-10 // over 2 years ago

Previous changes from v1.1.0

    • ๐Ÿ‘Œ support context-based cancelation for SizedGroup
    • ๐Ÿ‘Œ support Preemptive mode for SizedGroup
    • โœ‚ remove unneeded interfaces for groups