* feature:CDK:Add built-in support for the AWS CDK (1622)
1.21.9
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* enhancement:Dependencies:Bump attr version constraint (1620)
1.21.8
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* enhancement:Authorizers:Add support for custom headers in built-in authorizers (1613)
1.21.7
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* enhancement:Terraform:Map custom domain outputs in Terraform packaging (1601)
1.21.6
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* enhancement:Packaging:Increase upper bound for AWS provider in Terraform to 3.x (1596) * enhancement:Packaging:Add support for manylinux2014 wheels (1551)
1.21.5
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* bugfix:Config:Fix config validation for env vars on py27 (1573) * bugfix:Pip:Bump pip version contraint (1590) * bugfix:REST:Add Allow header with list of allowed methods when returning 405 error (1583)