Release 0.31.0

Features

• Add Ubuntu 20.04 Image Support (#2758)
• Add flag to enable Simple System Manager (SSM) for easy SSH access (#2754)
• Add format option for utils describe-stacks (#2718)
• Add option to not rollback failed stacks (#2744)
• Add support for powershell completion (#2726)

Improvements

• Improving handling of failed nodegroups (#2762)
• Return non-zero when a given nodegroup doesn't exist (#2731)

Bug Fixes

• Ensure node drain timeout is respected (#2759)
• Enforce control plane readiness before SA creation (#2760)
• Handle create nodegroup and withOIDC for clusters without aws-node SA (#2778)

Acknowledgments

Weaveworks would like to sincerely thank:
@aclevername, @neha-viswanathan, @sayboras, @powersj and @ajayk