1.21 (2020-11-24)

• (Breaking Change) Remove support for 2019.3, 2020.1 is the new minimum version
• (Feature) Add copy Logical/Physical ID actions to Stack View #2165
• (Feature) Add SQS AWS Explorer node and the ability to send/poll for messages
• (Feature) Add the ability to search CloudWatch Logs using CloudWatch Logs Insights
• (Feature) Add copy actions to CloudFormation outputs (#2179)
• (Feature) Support for the 2020.3 family of IDEs
• (Feature) Add an AWS Explorer ECR node
• (Bug Fix) Significantly speed up loading the list of S3 buckets (#2174)