**Experimental**: This documentation covers the AWS SDK for Python v4, which is experimental, non-GA software intended for evaluation and testing only. Do not use it for production workloads. For production applications, use the [AWS SDK for Python (Boto3)](https://docs.aws.amazon.com/boto3/latest/guide/quickstart.html). To understand the differences between the two SDKs, see [Choosing the right AWS SDK for Python](choosing-sdk.md).

# Document history for the AWS SDK for Python v4 Developer Guide
<a name="doc-history"></a>

The following table describes the documentation releases for AWS SDK for Python v4.

| Change | Description | Date | 
| --- |--- |--- |
| [Initial release](#doc-history) | Initial release of the AWS SDK for Python v4 Developer Guide | August 26, 2026 |