May 18th 2021

[rcoh]

New this week:

• 🎉 Add support for AWS Lambda (add Lambda service model #361, @richardhboyd) 🎉
• Breaking change (technically, no services impacted): Add support for streaming request bodies. When Blob is marked as a streaming request type, the SDK now generates ByteStream instead. (Http Protocol Refactor & Streaming Request bodies (breaking change) #359)
• Types represented by the Smithy Set type now generate Vec<T> in all cases (Serialize Sets with Vecs #270)
• Bugfix: The .message()field of errors will now look for both message and Message in the model (Gracefully handle alternate error message fields #374)
• Add support for the AWS_REGION environment variable. (Add support for the AWS_REGION environment variable #362)
• The request type generated by the fluent builders, eg. dynamodb.list_tables() is now Debug (Derive Default for FluentBuilders #377, @declanvk)

Updates to Internals:

• Recursive Inline dependencies are supported via a fixed-point algorithm
• restXML deserialization support
• Overhaul of URL encoding during request serialization, fixing several bugs (Redo url encoding #368)
• Update signer to avoid cloning credentials (New signer api #341)

---

This discussion was created from the release May 18th 2021.