Update to 1.27.39. From the changelog:

1.27.51
=======

* api-change:``billingconductor``: This release adds support for SKU
  Scope for pricing plans.
* api-change:``cloud9``: Added minimum value to AutomaticStopTimeMinutes
  parameter.
* api-change:``imagebuilder``: Add support for AWS Marketplace product
  IDs as input during CreateImageRecipe for the parent-image parameter.
  Add support for listing third-party components.
* api-change:``network-firewall``: Network Firewall now allows creation
  of dual stack endpoints, enabling inspection of IPv6 traffic.

1.27.50
=======

* api-change:``connect``: This release updates the responses of
  UpdateContactFlowContent, UpdateContactFlowMetadata,
  UpdateContactFlowName and DeleteContactFlow API with empty responses.
* api-change:``ec2``: Documentation updates for EC2.
* api-change:``outposts``: This release adds POWER_30_KVA as an option
  for PowerDrawKva. PowerDrawKva is part of the RackPhysicalProperties
  structure in the CreateSite request.
* api-change:``resource-groups``: AWS Resource Groups customers can now
  turn on Group Lifecycle Events in their AWS account. When you turn
  this on, Resource Groups monitors your groups for changes to group
  state or membership. Those changes are sent to Amazon EventBridge as
  events that you can respond to using rules you create.

1.27.49
=======

* api-change:``cleanrooms``: Initial release of AWS Clean Rooms
* api-change:``lambda``: Add support for MaximumConcurrency parameter
  for SQS event source. Customers can now limit the maximum concurrent
  invocations for their SQS Event Source Mapping.
* api-change:``logs``: Bug fix: logGroupName is now not a required field
  in GetLogEvents, FilterLogEvents, GetLogGroupFields, and
  DescribeLogStreams APIs as logGroupIdentifier can be provided instead
* api-change:``mediaconvert``: The AWS Elemental MediaConvert SDK has
  added support for compact DASH manifest generation, audio
  normalization using TruePeak measurements, and the ability to clip the
  sample range in the color corrector.
* api-change:``secretsmanager``: Update documentation for new
  ListSecrets and DescribeSecret parameters

1.27.48
=======

* api-change:``kendra``: This release adds support to new document types
  - RTF, XML, XSLT, MS_EXCEL, CSV, JSON, MD

1.27.47
=======

* api-change:``location``: This release adds support for two new route
  travel models, Bicycle and Motorcycle which can be used with Grab
  data source.
* api-change:``rds``: This release adds support for configuring
  allocated storage on the CreateDBInstanceReadReplica,
  RestoreDBInstanceFromDBSnapshot, and
  RestoreDBInstanceToPointInTime APIs.

1.27.46
=======

* bugfix:``codeartifact login``: Fix parsing of dotnet output for aws
  codeartifact login command; fixes `#6197
  <https://github.com/aws/aws-cli/issues/6197>`__
* api-change:``ecr-public``: This release for Amazon ECR Public makes
  several change to bring the SDK into sync with the API.
* api-change:``kendra-ranking``: Introducing Amazon Kendra Intelligent
  Ranking, a new set of Kendra APIs that leverages Kendra semantic
  ranking capabilities to improve the quality of search results from
  other search services (i.e. OpenSearch, ElasticSearch, Solr).
* api-change:``network-firewall``: Network Firewall now supports the
  Suricata rule action reject, in addition to the actions pass, drop,
  and alert.
* api-change:``ram``: Enabled FIPS aws-us-gov endpoints in SDK.
* api-change:``workspaces-web``: This release adds support for a new
  portal authentication type: AWS IAM Identity Center (successor to AWS
  Single Sign-On).

1.27.45
=======

* api-change:``acm-pca``: Added revocation parameter validation: bucket
  names must match S3 bucket naming rules and CNAMEs conform to RFC2396
  restrictions on the use of special characters in URIs.
* api-change:``auditmanager``: This release introduces a new data
  retention option in your Audit Manager settings. You can now use the
  DeregistrationPolicy parameter to specify if you want to delete your
  data when you deregister Audit Manager.

1.27.44
=======

* api-change:``amplifybackend``: Updated GetBackendAPIModels response to
  include ModelIntrospectionSchema json string
* api-change:``apprunner``: This release adds support of securely
  referencing secrets and configuration data that are stored in Secrets
  Manager and SSM Parameter Store by adding them as environment secrets
  in your App Runner service.
* api-change:``connect``: Documentation update for a new Initiation
  Method value in DescribeContact API
* api-change:``emr-serverless``: Adds support for customized images. You
  can now provide runtime images when creating or updating EMR
  Serverless Applications.
* api-change:``lightsail``: Documentation updates for Amazon Lightsail.
* api-change:``mwaa``: MWAA supports Apache Airflow version 2.4.3.
* api-change:``rds``: This release adds support for specifying which
  certificate authority (CA) to use for a DB instance's server
  certificate during DB instance creation, as well as other CA
  enhancements.

1.27.43
=======

* api-change:``application-autoscaling``: Customers can now use the
  existing DescribeScalingActivities API to also see the detailed and
  machine-readable reasons for Application Auto Scaling not scaling
  their resources and, if needed, take the necessary corrective actions.
* api-change:``logs``: Update to remove sequenceToken as a required
  field in PutLogEvents calls.
* api-change:``ssm``: Adding support for QuickSetup Document Type in
  Systems Manager

1.27.42
=======

* api-change:``securitylake``: Allow CreateSubscriber API to take string
  input that allows setting more descriptive SubscriberDescription
  field. Make souceTypes field required in model level for
  UpdateSubscriberRequest as it is required for every API call on the
  backend. Allow ListSubscribers take any String as nextToken param.

1.27.41
=======

* api-change:``cloudfront``: Extend response headers policy to support
  removing headers from viewer responses
* api-change:``iotfleetwise``: Update documentation - correct the epoch
  constant value of default value for expiryTime field in
  CreateCampaign request.

1.27.40
=======

* api-change:``apigateway``: Documentation updates for Amazon API
  Gateway
* api-change:``emr``: Update emr command to latest version
* api-change:``secretsmanager``: Added owning service filter, include
  planned deletion flag, and next rotation date response parameter in
  ListSecrets.
* api-change:``wisdom``: This release extends Wisdom CreateContent and
  StartContentUpload APIs to support PDF and MicrosoftWord docx document
  uploading.


(schmonz)