Boto3

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* api-change:``appflow``: [``botocore``] Doc only updates for clarification around OAuth2GrantType for Salesforce.
* api-change:``elbv2``: [``botocore``] Add zonal_shift.config.enabled attribute. Add new AdministrativeOverride construct in the describe-target-health API response to include information about the override status applied to a target.
* api-change:``emr``: [``botocore``] This release provides new parameter "Context" in instance fleet clusters.
* api-change:``guardduty``: [``botocore``] Added a new field for network connection details.
* api-change:``robomaker``: [``botocore``] Documentation update: added support notices to each API action.

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* api-change:``acm-pca``: [``botocore``] Documentation updates for AWS Private CA.
* api-change:``dms``: [``botocore``] Introduces DescribeDataMigrations, CreateDataMigration, ModifyDataMigration, DeleteDataMigration, StartDataMigration, StopDataMigration operations to SDK. Provides FailedDependencyFault error message.
* api-change:``ec2``: [``botocore``] This release adds support for assigning the billing of shared Amazon EC2 On-Demand Capacity Reservations.
* api-change:``ecs``: [``botocore``] This is a documentation only release that updates to documentation to let customers know that Amazon Elastic Inference is no longer available.
* api-change:``elastic-inference``: [``botocore``] Elastic Inference - Documentation update to add service shutdown notice.
* api-change:``iotfleetwise``: [``botocore``] Refine campaign related API validations
* api-change:``neptune-graph``: [``botocore``] Support for 16 m-NCU graphs available through account allowlisting
* api-change:``outposts``: [``botocore``] Adding new "DELIVERED" enum value for Outposts Order status
* api-change:``route53resolver``: [``botocore``] Route 53 Resolver Forwarding Rules can now include a server name indication (SNI) in the target address for rules that use the DNS-over-HTTPS (DoH) protocol. When a DoH-enabled Outbound Resolver Endpoint forwards a request to a DoH server, it will provide the SNI in the TLS handshake.
* api-change:``socialmessaging``: [``botocore``] This release for AWS End User Messaging includes a public SDK, providing a suite of APIs that enable sending WhatsApp messages to end users.
* api-change:``timestream-influxdb``: [``botocore``] This release updates our regex based validation rules in regards to valid DbInstance and DbParameterGroup name.

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* api-change:``codepipeline``: [``botocore``] AWS CodePipeline introduces a Compute category

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* api-change:``elasticache``: [``botocore``] AWS ElastiCache SDK now supports using APIs with newly launched Valkey engine. Please refer to updated AWS ElastiCache public documentation for detailed information on API usage.
* api-change:``memorydb``: [``botocore``] Amazon MemoryDB SDK now supports all APIs for newly launched Valkey engine. Please refer to the updated Amazon MemoryDB public documentation for detailed information on API usage.
* enhancement:Python: [``botocore``] Added provisional Python 3.13 support to Botocore
* enhancement:Python: Added provisional Python 3.13 support to Boto3

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* api-change:``deadline``: [``botocore``] Add support for using the template from a previous job during job creation and listing parameter definitions for a job.
* api-change:``marketplace-reporting``: [``botocore``] Documentation-only update for AWS Marketplace Reporting API.
* api-change:``qconnect``: [``botocore``] This release adds support for the following capabilities: Configuration of the Gen AI system via AIAgent and AIPrompts. Integration support for Bedrock Knowledge Base.
* api-change:``redshift``: [``botocore``] Add validation pattern to S3KeyPrefix on the EnableLogging API

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* api-change:``ec2``: [``botocore``] Documentation updates for Amazon EC2.
* api-change:``iot-data``: [``botocore``] Add v2 smoke tests and smithy smokeTests trait for SDK testing.