Release 0.39.0

Features

• Support enabling KMS encryption for existing clusters (#3364)
• add permission boundary to addon role (#3276)
• support delete addon when only the addon stack exists (#3280)

Improvements

• bump EKS 1.19 coredns to 1.8.0 (#3319)
• bump upgrade cluster timeout to 65 (#3310)
• Make nodegroup CloudFormation stack slimmer (#3277)

Bug Fixes

• Fix specifying subnets by AZ (#3301)
• Fix support for specifying subnets without ID (#3229)

Acknowledgments

Weaveworks would like to sincerely thank:
@hiraken-w and @morancj