cdk 1.18.0

v1.18.0

on Node.js Yarn

General Availability of AWS CDK for .NET and Java!! 🎉🎉🥂🥂🍾🍾

We are excited to announce the general availability of support for the .NET family of languages (C#,
F#, ...) as well as Java!

We want to express our gratitude to all of our early customers as well as the amazing contributors
for all the help and support in making this release possible. Thank you for all the feedback
provided during the Developer Preview of .NET and Java support, without which the product would not
be what it is today.

Special thanks go out to a handful of amazing people who have provided instrumental support in
bringing .NET and Java support to this point:

• Aaron Costley
• Ben Maizels
• Daniel Dinu
• Erik Karlsson
• Hamza Assyad
• Jerry Kindall
• Noah Litov
• Richard Boyd

Of course, we continue to be amazed and thrilled by the community contributions we received besides
language support. The passion demonstrated by the CDK community is heartwarming and largely
contributes to making maintaining the CDK an enjoyable, enriching experience!

Features

• lambda: node12.x, python3.8 and java11 runtimes (#5107) (e62f9fb)
• lambda: unlock the lambda environment variables restriction in China regions (#5122) (cc13009)

Bug Fixes

• init/chsarp: correct README for sample-app C# template (#5144) (b2031f6)
• init/sample-app: numerous fixes and additions to the sample-app init templates (#5119) (02c3b05), closes #5130 #5130
• init/java: add -e to mvn command so errors aren't hidden (#5129) (5427106), closes #5128
• init/csharp: .NET semantic fixes for init templates (#5154) (04a1b32)

Known Issues

The following known issues were identified that specifically affect .NET and Java support in the CDK,
and which will be promptly addressed in upcoming CDK releases (in no particular order). See the
GitHub issues for more information and workarounds where applicable.

• .NET and Java: [aws/jsii#1011] - abstract members are not marked as such on their .NET and Java representations
• .NET: [aws/jsii#1029] - user-defined classes implementing CDK interfaces must extend Amazon.Jsii.Runtime.Deputy.DeputyBase
• .NET: [aws/jsii#1042] - Parameters typed object accept only primitive types, instances of CDK types, Dictionary<string,?>
• .NET: [aws/jsii#1044] - Unable to pass interface instance through in a Dictionary<string,object>
• Java: [aws/jsii#1034] - Implementing or overriding overloaded methods in Java does not work consistently
• Java: [aws/jsii#1035] - Returning Lazy.anyValue from an method whose return type is java.lang.Object may result in Resolution Errors
• Java: [aws/jsii#1005] - property getter implementations (e.g: from an interface) may be ignored