Release v1.8.17 (2017-04-26)
===

### Service Client Updates
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/rds`: Updates service API and documentation
  * With Amazon Relational Database Service (Amazon RDS) running MySQL or Amazon Aurora, you can now authenticate to your DB instance using IAM database authentication.

Release v1.8.16 (2017-04-21)
===

### Service Client Updates
* `service/appstream`: Updates service API, documentation, and paginators
  * The new feature named "Default Internet Access" will enable Internet access from AppStream 2.0 instances - image builders and fleet instances. Admins will check a flag either through AWS management console for AppStream 2.0 or through API while creating an image builder or while creating/updating a fleet.
* `service/kinesis`: Updates service API, documentation, waiters, and paginators
  * Adds a new waiter, StreamNotExists, to Kinesis.

### SDK Enhancements
* `aws/endpoints`: Add utilities improving endpoints lookup (#1218)
  * Adds several utilities to the endpoints packages to make looking up partitions, regions, and services easier.
  * Fixes #994

### SDK Bugs
* `private/protocol/xml/xmlutil`: Fix unmarshaling dropping errors (#1219)
  * The XML unmarshaler would drop any serialization or body read error that occurred on the floor effectively hiding any errors that would occur.
  * Fixes #1205
Release v1.8.15 (2017-04-20)
===

### Service Client Updates
* `service/devicefarm`: Updates service API and documentation
  * API Update for AWS Device Farm: Support for Deals and Promotions
* `service/directconnect`: Updates service documentation
  * Documentation updates for AWS Direct Connect.
* `service/elbv2`: Updates service waiters
* `service/kms`: Updates service documentation and examples
  * Doc-only update for Key Management Service (KMS): Update docs for GrantConstraints and GenerateRandom
* `service/route53`: Updates service documentation
  * Release notes: SDK documentation now includes examples for ChangeResourceRecordSets for all types of resource record set, such as weighted, alias, and failover.
* `service/route53domains`: Updates service API, documentation, and paginators
  * Adding examples and other documentation updates.

### SDK Enhancements
* `service/s3`: Add utilities to make getting a bucket's region easier (#1207)
  * Adds two features which make it easier to get a bucket's region, `s3.NormalizeBucketLocation` and `s3manager.GetBucketRegion`.

### SDK Bugs
* `service/s3`: Fix HeadObject's incorrect documented error codes (#1213)
  * The HeadObject's model incorrectly states that the operation can return the NoSuchKey error code.
  * Fixes #1208

Release v1.8.14 (2017-04-19)
===

### Service Client Updates
* `service/apigateway`: Updates service API and documentation
  * Add support for "embed" property.
* `service/codestar`: Adds new service
  * AWS CodeStar is a cloud-based service for creating, managing, and working with software development projects on AWS. An AWS CodeStar project creates and integrates AWS services for your project development toolchain. AWS CodeStar also manages the permissions required for project users.
* `service/ec2`: Updates service API and documentation
  * Adds support for creating an Amazon FPGA Image (AFI) from a specified design checkpoint (DCP).
* `service/iam`: Updates service API and documentation
  * This changes introduces a new IAM role type, Service Linked Role, which works like a normal role but must be managed via services' control.
* `service/lambda`: Updates service API and documentation
  * Lambda integration with CloudDebugger service to enable customers to enable tracing for the Lambda functions and send trace information to the CloudDebugger service.
* `service/lexmodelbuildingservice`: Adds new service
* `service/polly`: Updates service API, documentation, and paginators
  * API Update for Amazon Polly: Add support for speech marks
* `service/rekognition`: Updates service API and documentation
  * Given an image, the API detects explicit or suggestive adult content in the image and returns a list of corresponding labels with confidence scores, as well as a taxonomy (parent-child relation) for each label.

Release v1.8.13 (2017-04-18)
===

### Service Client Updates
* `service/lambda`: Updates service API and documentation
  * You can use tags to group and filter your Lambda functions, making it easier to analyze them for billing allocation purposes. For more information, see Tagging Lambda Functions.  You can now write or upgrade your Lambda functions using Python version 3.6. For more information, see Programming Model for Authoring Lambda Functions in Python. Note: Features will be rolled out in the US regions on 4/19.

### SDK Enhancements
* `aws/request`: add support for appengine's custom standard library (#1190)
  * Remove syscall error checking on appengine platforms.

Release v1.8.12 (2017-04-11)
===

### Service Client Updates
* `service/apigateway`: Updates service API and documentation
  * API Gateway request validators
* `service/batch`: Updates service API and documentation
  * API Update for AWS Batch: Customer provided AMI for MANAGED Compute Environment
* `service/gamelift`: Updates service API and documentation
  * Allows developers to utilize an improved workflow when calling our Queues API and introduces a new feature that allows developers to specify a maximum allowable latency per Queue.
* `service/opsworks`: Updates service API, documentation, and paginators
  * Cloudwatch Logs agent configuration can now be attached to OpsWorks Layers using CreateLayer and UpdateLayer. OpsWorks will then automatically install and manage the CloudWatch Logs agent on the instances part of the OpsWorks Layer.

### SDK Bugs
* `aws/client`: Fix clients polluting handler list (#1197)
  * Fixes the clients potentially polluting the passed in handler list with the client's customizations. This change ensures every client always works with a clean copy of the request handlers and it cannot pollute the handlers back upstream.
  * Fixes #1184
* `aws/request`: Fix waiter error match condition (#1195)
  * Fixes the waiters's matching overwriting the request's err, effectively ignoring the error condition. This broke waiters with the FailureWaiterState matcher state.
Release v1.8.11 (2017-04-07)
===

### Service Client Updates
* `service/redshift`: Updates service API, documentation, and paginators
  * This update adds the GetClusterCredentials API which is used to get temporary login credentials to the cluster. AccountWithRestoreAccess now has a new member AccountAlias, this is the identifier of the AWS support account authorized to restore the specified snapshot. This is added to support the feature where the customer can share their snapshot with the Amazon Redshift Support Account without having to manually specify the AWS Redshift Service account ID on the AWS Console/API.

Release v1.8.10 (2017-04-06)
===

### Service Client Updates
* `service/elbv2`: Updates service documentation

Release v1.8.9 (2017-04-05)
===

### Service Client Updates
* `service/elasticache`: Updates service API, documentation, paginators, and examples
  * ElastiCache added support for testing the Elasticache Multi-AZ feature with Automatic Failover.

Release v1.8.8 (2017-04-04)
===

### Service Client Updates
* `service/cloudwatch`: Updates service API, documentation, and paginators
  * Amazon Web Services announced the immediate availability of two additional alarm configuration rules for Amazon CloudWatch Alarms. The first rule is for configuring missing data treatment. Customers have the options to treat missing data as alarm threshold breached, alarm threshold not breached, maintain alarm state and the current default treatment. The second rule is for alarms based on percentiles metrics that can trigger unnecassarily if the percentile is calculated from a small number of samples. The new rule can treat percentiles with low sample counts as same as missing data. If the first rule is enabled, the same treatment will be applied when an alarm encounters a percentile with low sample counts.

Release v1.8.7 (2017-04-03)
===

### Service Client Updates
* `service/lexruntimeservice`: Updates service API and documentation
  * Adds support to PostContent for speech input

### SDK Enhancements
* `aws/request`: Improve handler copy, push back, push front performance (#1171)
  * Minor optimization to the handler list's handling of copying and pushing request handlers to the handler list.
* Update codegen header to use Go std wording (#1172)
  * Go recently accepted the proposal for standard generated file header wording in, https://golang.org/s/generatedcode.

### SDK Bugs
* `service/dynamodb`: Fix DynamoDB using custom retryer (#1170)
  * Fixes (#1139) the DynamoDB service client clobbering any custom retryer that was passed into the service client or Session's config.
Release v1.8.6 (2017-04-01)
===

### Service Client Updates
* `service/clouddirectory`: Updates service API and documentation
  * ListObjectAttributes now supports filtering by facet.
* `aws/endpoints`: Updated Regions and Endpoints metadata.

Release v1.8.5 (2017-03-30)
===

### Service Client Updates
* `service/cloudformation`: Updates service waiters and paginators
  * Adding paginators for ListExports and ListImports
* `service/cloudfront`: Adds new service
  * Amazon CloudFront now supports user configurable HTTP Read and Keep-Alive Idle Timeouts for your Custom Origin Servers
* `service/configservice`: Updates service documentation
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/resourcegroupstaggingapi`: Adds new service
* `service/storagegateway`: Updates service API and documentation
  * File gateway mode in AWS Storage gateway provides access to objects in S3 as files on a Network File System (NFS) mount point. Once a file share is created, any changes made externally to the S3 bucket will not be reflected by the gateway. Using the cache refresh feature in this update, the customer can trigger an on-demand scan of the keys in their S3 bucket and refresh the file namespace cached on the gateway. It takes as an input the fileShare ARN and refreshes the cache for only that file share. Additionally there is new functionality on file gateway that allows you configure what squash options they would like on their file share, this allows a customer to configure their gateway to not squash root permissions. This can be done by setting options in NfsOptions for CreateNfsFileShare and UpdateNfsFileShare APIs.

Release v1.8.4 (2017-03-28)
===

### Service Client Updates
* `service/batch`: Updates service API, documentation, and paginators
  * Customers can now provide a retryStrategy as part of the RegisterJobDefinition and SubmitJob API calls. The retryStrategy object has a number value for attempts. This is the number of non successful executions before a job is considered FAILED. In addition, the JobDetail object now has an attempts field and shows all execution attempts.
* `service/ec2`: Updates service API and documentation
	* Customers can now tag their Amazon EC2 Instances and Amazon EBS Volumes at
	the time of their creation. You can do this from the EC2 Instance launch
	wizard or through the RunInstances or CreateVolume APIs. By tagging
	resources at the time of creation, you can eliminate the need to run custom
	tagging scripts after resource creation. In addition, you can now set
	resource-level permissions on the CreateVolume, CreateTags, DeleteTags, and
	the RunInstances APIs. This allows you to implement stronger security
	policies by giving you more granular control over which users and groups
	have access to these APIs. You can also enforce the use of tagging and
	control what tag keys and values are set on your resources. When you combine
	tag usage and resource-level IAM policies together, you can ensure your
	instances and volumes are properly secured upon creation and achieve more
	accurate cost allocation reporting. These new features are provided at no
	additional cost.

### SDK Enhancements
* `aws/request`: Add retry support for RequestTimeoutException (#1158)
  * Adds support for retrying RequestTimeoutException error code that is returned by some services.

### SDK Bugs
* `private/model/api`: Fix Waiter and Paginators panic on nil param inputs (#1157)
  * Corrects the code generation for Paginators and waiters that caused a panic if nil input parameters were used with the operations.
Release v1.8.3 (2017-03-27)
===

## Service Client Updates
* `service/ssm`: Updates service API, documentation, and paginators
  * Updated validation rules for SendCommand and RegisterTaskWithMaintenanceWindow APIs.
Release v1.8.2 (2017-03-24)
===

Service Client Updates
---
* `service/applicationautoscaling`: Updates service API, documentation, and paginators
  * Application AutoScaling is launching support for a new target resource (AppStream 2.0 Fleets) as a scalable target.
* `service/cloudtrail`: Updates service API and documentation
  * Doc-only Update for CloudTrail: Add required parameters for GetEventSelectors and PutEventSelectors

Release v1.8.1 (2017-03-23)
===

Service Client Updates
---
* `service/applicationdiscoveryservice`: Updates service API, documentation, and paginators
  * Adds export configuration options to the AWS Discovery Service API.
* `service/elbv2`: Updates waiters
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/lambda`: Updates service API and paginators
  * Adds support for new runtime Node.js v6.10 for AWS Lambda service

Release v1.8.0 (2017-03-22)
===

Service Client Updates
---
* `service/codebuild`: Updates service documentation
* `service/directconnect`: Updates service API
  * Deprecated DescribeConnectionLoa, DescribeInterconnectLoa, AllocateConnectionOnInterconnect and DescribeConnectionsOnInterconnect operations in favor of DescribeLoa, DescribeLoa, AllocateHostedConnection and DescribeHostedConnections respectively.
* `service/marketplacecommerceanalytics`: Updates service API, documentation, and paginators
  * This update adds a new data set, us_sales_and_use_tax_records, which enables AWS Marketplace sellers to programmatically access to their U.S. Sales and Use Tax report data.
* `service/pinpoint`: Updates service API and documentation
  * Amazon Pinpoint User Segmentation
  * Added ability to segment endpoints by user attributes in addition to endpoint attributes. Amazon Pinpoint Event Stream Preview
  * Added functionality to publish raw app analytics and campaign events data as events streams to Kinesis and Kinesis Firehose
  * The feature provides developers with increased flexibility of exporting raw events to S3, Redshift, Elasticsearch using a Kinesis Firehose stream or enable real time event processing use cases using a Kinesis stream
* `service/rekognition`: Updates service documentation.

SDK Features
---
* `aws/request`: Add support for context.Context to SDK API operation requests (#1132)
  * Adds support for context.Context to the SDK by adding `WithContext` methods for each API operation, Paginators and Waiters. e.g `PutObjectWithContext`. This change also adds the ability to provide request functional options to the method calls instead of requiring you to use the `Request` API operation method (e.g `PutObjectRequest`).
  * Adds a `Complete` Request handler list that will be called ever time a request is completed. This includes both success and failure. Complete will only be called once per API operation request.
  * `private/waiter` package moved from the private group to `aws/request/waiter` and made publicly available.
  * Adds Context support to all API operations, Waiters(WaitUntil) and Paginators(Pages) methods.
  * Adds Context support for s3manager and s3crypto clients.

SDK Enhancements
---
* `aws/signer/v4`: Adds support for unsigned payload signer config (#1130)
  * Adds configuration option to the v4.Signer to specify the request's body should not be signed. This will only correclty function on services that support unsigned payload. e.g. S3, Glacier. 

SDK Bug Fixes
---
* `service/s3`: Fix S3 HostID to be available in S3 request error message (#1131)
  * Adds a new type s3.RequestFailure which exposes the S3 HostID value from a S3 API operation response. This is helpful when you have an error with S3, and need to contact support. Both RequestID and HostID are needed.
* `private/model/api`: Do not return a link if uid is empty (#1133)
  * Fixes SDK's doc generation to not generate API reference doc links if the SDK us unable to create a valid link.
* `aws/request`: Optimization to handler list copy to prevent multiple alloc calls. (#1134)
Release v1.7.9 (2017-03-13)
===

Service Client Updates
---
* `service/devicefarm`: Updates service API, documentation, paginators, and examples
  * Network shaping allows users to simulate network connections and conditions while testing their Android, iOS, and web apps with AWS Device Farm.
* `service/cloudwatchevents`: Updates service API, documentation, and examples

SDK Enhancement
===
* `aws/session`: Add support for side loaded CA bundles (#1117)
  * Adds supports for side loading Certificate Authority bundle files to the SDK using AWS_CA_BUNDLE environment variable or CustomCABundle session option.
* `service/s3/s3crypto`: Add support for AES/CBC/PKCS5Padding (#1124)

SDK Bug
===
* `service/rds`: Fixing issue when not providing `SourceRegion` on cross
region operations (#1127)
* `service/rds`: Enables cross region for `CopyDBClusterSnapshot` and
`CreateDBCluster` (#1128)

Release v1.7.8 (2017-03-10)
===

Service Client Updates
---
* `service/codedeploy`: Updates service paginators
  * Add paginators for Codedeploy
* `service/emr`: Updates service API, documentation, and paginators
  * This release includes support for instance fleets in Amazon EMR.

Release v1.7.7 (2017-03-09)
===

Service Client Updates
---
* `service/apigateway`: Updates service API, documentation, and paginators
  * API Gateway has added support for ACM certificates on custom domain names. Both Amazon-issued certificates and uploaded third-part certificates are supported.
* `service/clouddirectory`: Updates service API, documentation, and paginators
  * Introduces a new Cloud Directory API that enables you to retrieve all available parent paths for any type of object (a node, leaf node, policy node, and index node) in a hierarchy.

Release v1.7.6 (2017-03-09)
===

Service Client Updates
---
* `service/organizations`: Updates service documentation and examples
  * Doc-only Update for Organizations: Add SDK Code Snippets
* `service/workdocs`: Adds new service
  * The Administrative SDKs for Amazon WorkDocs provides full administrator level access to WorkDocs site resources, allowing developers to integrate their applications to manage WorkDocs users, content and permissions programmatically

Release v1.7.5 (2017-03-08)
===

Service Client Updates
---
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/rds`: Updates service API and documentation
  * Add support to using encrypted clusters as cross-region replication masters. Update CopyDBClusterSnapshot API to support encrypted cross region copy of Aurora cluster snapshots.

Release v1.7.4 (2017-03-06)
===

Service Client Updates
---
* `service/budgets`: Updates service API and paginators
  * When creating or editing a budget via the AWS Budgets API you can define notifications that are sent to subscribers when the actual or forecasted value for cost or usage exceeds the notificationThreshold associated with the budget notification object. Starting today, the maximum allowed value for the notificationThreshold was raised from 100 to 300. This change was made to give you more flexibility when setting budget notifications.
* `service/cloudtrail`: Updates service documentation and paginators
  * Doc-only update for AWSCloudTrail: Updated links/descriptions
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/opsworkscm`: Updates service API, documentation, and paginators
  * OpsWorks for Chef Automate has added a new field "AssociatePublicIpAddress" to the CreateServer request, "CloudFormationStackArn" to the Server model and "TERMINATED" server state.


Release v1.7.3 (2017-02-28)
===

Service Client Updates
---
* `service/mturk`: Renaming service
  * service/mechanicalturkrequesterservice was renamed to service/mturk. Be sure to change any references of the old client to the new.

Release v1.7.2 (2017-02-28)
===

Service Client Updates
---
* `service/dynamodb`: Updates service API and documentation
  * Release notes: Time to Live (TTL) is a feature that allows you to define when items in a table expire and can be purged from the database, so that you don't have to track expired data and delete it manually. With TTL enabled on a DynamoDB table, you can set a timestamp for deletion on a per-item basis, allowing you to limit storage usage to only those records that are relevant.
* `service/iam`: Updates service API, documentation, and paginators
  * This release adds support for AWS Organizations service control policies (SCPs) to SimulatePrincipalPolicy operation. If there are SCPs associated with the simulated user's account, their effect on the result is captured in the OrganizationDecisionDetail element in the EvaluationResult.
* `service/mechanicalturkrequesterservice`: Adds new service
  * Amazon Mechanical Turk is a web service that provides an on-demand, scalable, human workforce to complete jobs that humans can do better than computers, for example, recognizing objects in photos.
* `service/organizations`: Adds new service
  * AWS Organizations is a web service that enables you to consolidate your multiple AWS accounts into an organization and centrally manage your accounts and their resources.
* `service/dynamodbstreams`: Updates service API, documentation, and paginators
* `service/waf`: Updates service API, documentation, and paginators
  * Aws WAF - For GetSampledRequests action, changed max number of samples from 100 to 500.
* `service/wafregional`: Updates service API, documentation, and paginators

Release v1.7.1 (2017-02-24)
===

Service Client Updates
---
* `service/elasticsearchservice`: Updates service API, documentation, paginators, and examples
  * Added three new API calls to existing Amazon Elasticsearch service to expose Amazon Elasticsearch imposed limits to customers.

Release v1.7.0 (2017-02-23)
===

Service Client Updates
---
* `service/ec2`: Updates service API
  * New EC2 I3 instance type

SDK Bug
---
* `service/s3/s3manager`: Adding support for SSE (#1097)
  * Fixes SSE fields not being applied to a part during multi part upload.

SDK Feature
---
* `aws/session`: Add support for AssumeRoles with MFA (#1088)
  * Adds support for assuming IAM roles with MFA enabled. A TokenProvider func was added to stscreds.AssumeRoleProvider that will be called each time the role's credentials need to be refreshed. A basic token provider that sources the MFA token from stdin as stscreds.StdinTokenProvider.
* `aws/session`: Update SDK examples and docs to use session.Must (#1099)
  * Updates the SDK's example and docs to use session.Must where possible to highlight its usage as apposed to session error checking that is most cases errors will be terminal to the application anyways.
Release v1.6.27 (2017-02-22)
===

Service Client Updates
---
* `service/clouddirectory`: Updates service documentation
  * ListObjectAttributes documentation updated based on forum feedback
* `service/elasticbeanstalk`: Updates service API, documentation, and paginators
  * Elastic Beanstalk adds support for creating and managing custom platform.
* `service/gamelift`: Updates service API, documentation, and paginators
  * Allow developers to configure global queues for creating GameSessions. Allow PlayerData on PlayerSessions to store player-specific data.
* `service/route53`: Updates service API, documentation, and examples
  * Added support for operations CreateVPCAssociationAuthorization and DeleteVPCAssociationAuthorization to throw a ConcurrentModification error when a conflicting modification occurs in parallel to the authorizations in place for a given hosted zone.

Release v1.6.26 (2017-02-21)
===

Service Client Updates
---
* `service/ec2`: Updates service API and documentation
  * Added the billingProduct parameter to the RegisterImage API.

Release v1.6.25 (2017-02-17)
===

Service Client Updates
---
* `service/directconnect`: Updates service API, documentation, and paginators
  * This update will introduce the ability for Direct Connect customers to take advantage of Link Aggregation (LAG).     This allows you to bundle many individual physical interfaces into a single logical interface, referred to as a LAG.     This makes administration much simpler as the majority of configuration is done on the LAG while you are free     to add or remove physical interfaces from the bundle as bandwidth demand increases or decreases. A concrete example     of the simplification added by LAG is that customers need only a single BGP session as opposed to one session per     physical connection.

Release v1.6.24 (2017-02-16)
===

Service Client Updates
---
* `service/cognitoidentity`: Updates service API, documentation, and paginators
  * Allow createIdentityPool and updateIdentityPool API to set server side token check value on identity pool
* `service/configservice`: Updates service API and documentation
  * AWS Config now supports a new test mode for the PutEvaluations API. Set the TestMode parameter to true in your custom rule to verify whether your AWS Lambda function will deliver evaluation results to AWS Config. No updates occur to your existing evaluations, and evaluation results are not sent to AWS Config.

Release v1.6.23 (2017-02-15)
===

Service Client Updates
---
* `service/kms`: Updates service API, documentation, paginators, and examples
  * his release of AWS Key Management Service introduces the ability to tag keys. Tagging keys can help you organize your keys and track your KMS costs in the cost allocation report. This release also increases the maximum length of a key ID to accommodate ARNs that include a long key alias.

Release v1.6.22 (2017-02-14)
===

Service Client Updates
---
* `service/ec2`: Updates service API, documentation, and paginators
  * Adds support for the new Modify Volumes apis.

Release v1.6.21 (2017-02-11)
===

Service Client Updates
---
* `service/storagegateway`: Updates service API, documentation, and paginators
  * File gateway mode in AWS Storage gateway provides access to objects in S3 as files on a Network File System (NFS) mount point. This is done by creating Nfs file shares using existing APIs CreateNfsFileShare. Using the feature in this update, the customer can restrict the clients that have read/write access to the gateway by specifying the list of clients as a list of IP addresses or CIDR blocks. This list can be specified using the API CreateNfsFileShare while creating new file shares, or UpdateNfsFileShare while update existing file shares. To find out the list of clients that have access, the existing API DescribeNfsFileShare will now output the list of clients that have access.

Release v1.6.20 (2017-02-09)
===

Service Client Updates
---
* `service/ec2`: Updates service API and documentation
  * This feature allows customers to associate an IAM profile to running instances that do not have any.
* `service/rekognition`: Updates service API and documentation
  * DetectFaces and IndexFaces operations now return an estimate of the age of the face as an age range.

SDK Features
---
* `aws/endpoints`: Add option to resolve unknown endpoints (#1074)
Release v1.6.19 (2017-02-08)
===

Service Client Updates
---
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/glacier`: Updates service examples
	* Doc Update
* `service/lexruntimeservice`: Adds new service
	* Preview release

SDK Bug Fixes
---
* `private/protocol/json`: Fixes json to throw an error if a float number is (+/-)Inf and NaN (#1068)
* `private/model/api`: Fix documentation error listing (#1067)

SDK Features
---
* `private/model`: Add service response error code generation (#1061)

Release v1.6.18 (2017-01-27)
===

Service Client Updates
---
* `service/clouddirectory`: Adds new service
  * Amazon Cloud Directory is a highly scalable, high performance, multi-tenant directory service in the cloud. Its web-based directories make it easy for you to organize and manage application resources such as users, groups, locations, devices, policies, and the rich relationships between them.
* `service/codedeploy`: Updates service API, documentation, and paginators
  * This release of AWS CodeDeploy introduces support for blue/green deployments. In a blue/green deployment, the current set of instances in a deployment group is replaced by new instances that have the latest application revision installed on them. After traffic is rerouted behind a load balancer to the replacement instances, the original instances can be terminated automatically or kept running for other uses.
* `service/ec2`: Updates service API and documentation
  * Adds instance health check functionality to replace unhealthy EC2 Spot fleet instances with fresh ones.
* `service/rds`: Updates service API and documentation
  * Snapshot Engine Version Upgrade

Release v1.6.17 (2017-01-25)
===

Service Client Updates
---
* `service/elbv2`: Updates service API, documentation, and paginators
  * Application Load Balancers now support native Internet Protocol version 6 (IPv6) in an Amazon Virtual Private Cloud (VPC). With this ability, clients can now connect to the Application Load Balancer in a dual-stack mode via either IPv4 or IPv6.
* `service/rds`: Updates service API and documentation
  * Cross Region Read Replica Copying (CreateDBInstanceReadReplica)

Release v1.6.16 (2017-01-24)
===

Service Client Updates
---
* `service/codebuild`: Updates service documentation and paginators
  * Documentation updates
* `service/codecommit`: Updates service API, documentation, and paginators
  * AWS CodeCommit now includes the option to view the differences between a commit and its parent commit from within the console. You can view the differences inline (Unified view) or side by side (Split view). To view information about the differences between a commit and something other than its parent, you can use the AWS CLI and the get-differences and get-blob commands, or you can use the GetDifferences and GetBlob APIs.
* `service/ecs`: Updates service API and documentation
  * Amazon ECS now supports a state for container instances that can be used to drain a container instance in preparation for maintenance or cluster scale down.

Release v1.6.15 (2017-01-20)
===

Service Client Updates
---
* `service/acm`: Updates service API, documentation, and paginators
  * Update for AWS Certificate Manager: Updated response elements for DescribeCertificate API in support of managed renewal
* `service/health`: Updates service documentation

Release v1.6.14 (2017-01-19)
===

Service Client Updates
---
* `service/ec2`: Updates service API, documentation, and paginators
  * Amazon EC2 Spot instances now support dedicated tenancy, providing the ability to run Spot instances single-tenant manner on physically isolated hardware within a VPC to satisfy security, privacy, or other compliance requirements. Dedicated Spot instances can be requested using RequestSpotInstances and RequestSpotFleet.

Release v1.6.13 (2017-01-18)
===

Service Client Updates
---
* `service/rds`: Updates service API, documentation, and paginators

Release v1.6.12 (2017-01-17)
===

Service Client Updates
---
* `service/dynamodb`: Updates service API, documentation, and paginators
  * Tagging Support for Amazon DynamoDB Tables and Indexes
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/glacier`: Updates service API, paginators, and examples
  * Doc-only Update for Glacier: Added code snippets
* `service/polly`: Updates service documentation and examples
  * Doc-only update for Amazon Polly -- added snippets
* `service/rekognition`: Updates service documentation and paginators
  * Added code samples to Rekognition reference topics.
* `service/route53`: Updates service API and paginators
  * Add ca-central-1 and eu-west-2 enum values to CloudWatchRegion enum

Release v1.6.11 (2017-01-16)
===

Service Client Updates
---
* `service/configservice`: Updates service API, documentation, and paginators
* `service/costandusagereportservice`: Adds new service
  * The AWS Cost and Usage Report Service API allows you to enable and disable the Cost & Usage report, as well as modify the report name, the data granularity, and the delivery preferences.
* `service/dynamodb`: Updates service API, documentation, and examples
  * Snippets for the DynamoDB API.
* `service/elasticache`: Updates service API, documentation, and examples
  * Adds new code examples.
* `aws/endpoints`: Updated Regions and Endpoints metadata.

Release v1.6.10 (2017-01-04)
===

Service Client Updates
---
* `service/configservice`: Updates service API and documentation
  * AWSConfig is planning to add support for OversizedConfigurationItemChangeNotification message type in putConfigRule. After this release customers can use/write rules based on OversizedConfigurationItemChangeNotification mesage type.
* `service/efs`: Updates service API, documentation, and examples
  * Doc-only Update for EFS: Added code snippets
* `service/iam`: Updates service documentation and examples
* `service/lambda`: Updates service documentation and examples
  * Doc only updates for Lambda: Added code snippets
* `service/marketplacecommerceanalytics`: Updates service API and documentation
  * Added support for data set disbursed_amount_by_instance_hours, with historical data available starting 2012-09-04. New data is published to this data set every 30 days.
* `service/rds`: Updates service documentation
  * Updated documentation for CopyDBSnapshot.
* `service/rekognition`: Updates service documentation and examples
  * Doc-only Update for Rekognition: Added code snippets
* `service/snowball`: Updates service examples
* `service/dynamodbstreams`: Updates service API and examples
  * Doc-only Update for DynamoDB Streams:  Added code snippets

SDK Feature
---
* `private/model/api`: Increasing the readability of code generated files. (#1024)
Release v1.6.9 (2016-12-30)
===

Service Client Updates
---
* `service/codedeploy`: Updates service API and documentation
  * CodeDeploy will support Iam Session Arns in addition to Iam User Arns for on premise host authentication.
* `service/ecs`: Updates service API and documentation
  * Amazon EC2 Container Service (ECS) now supports the ability to customize the placement of tasks on container instances.
* `aws/endpoints`: Updated Regions and Endpoints metadata.

Release v1.6.8 (2016-12-22)
===

Service Client Updates
---
* `service/apigateway`: Updates service API and documentation
  * Amazon API Gateway is adding support for generating SDKs in more languages. This update introduces two new operations used to dynamically discover these SDK types and what configuration each type accepts.
* `service/directoryservice`: Updates service documentation
  * Added code snippets for the DS SDKs
* `service/elasticbeanstalk`: Updates service API and documentation
* `service/iam`: Updates service API and documentation
  * Adds service-specific credentials to IAM service to make it easier to onboard CodeCommit customers.  These are username/password credentials that work with a single service.
* `service/kms`: Updates service API, documentation, and examples
  * Update docs and add SDK examples

Release v1.6.7 (2016-12-22)
===

Service Client Updates
---
* `service/ecr`: Updates service API and documentation
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/rds`: Updates service API and documentation
  * Cross Region Encrypted Snapshot Copying (CopyDBSnapshot)

Release v1.6.6 (2016-12-20)
===

Service Client Updates
---
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/firehose`: Updates service API, documentation, and examples
  * Processing feature enables users to process and modify records before Amazon Firehose delivers them to destinations.
* `service/route53`: Updates service API and documentation
  * Enum updates for eu-west-2 and ca-central-1
* `service/storagegateway`: Updates service API, documentation, and examples
  * File gateway is a new mode in the AWS Storage Gateway that support a file interface into S3, alongside the current block-based volume and VTL storage. File gateway combines a service and virtual software appliance, enabling you to store and retrieve objects in Amazon S3 using industry standard file protocols such as NFS. The software appliance, or gateway, is deployed into your on-premises environment as a virtual machine (VM) running on VMware ESXi. The gateway provides access to objects in S3 as files on a Network File System (NFS) mount point.

Release v1.6.5 (2016-12-19)
===

Service Client Updates
---
* `service/cloudformation`: Updates service documentation
  * Minor doc update for CloudFormation.
* `service/cloudtrail`: Updates service paginators
* `service/cognitoidentity`: Updates service API and documentation
  * We are adding Groups to Cognito user pools. Developers can perform CRUD operations on groups, add and remove users from groups, list users in groups, etc. We are adding fine-grained role-based access control for Cognito identity pools. Developers can configure an identity pool to get the IAM role from an authenticated user's token, or they can configure rules that will map a user to a different role
* `service/applicationdiscoveryservice`: Updates service API and documentation
  * Adds new APIs to group discovered servers into Applications with get summary and neighbors. Includes additional filters for ListConfigurations and DescribeAgents API.
* `service/inspector`: Updates service API, documentation, and examples
  * Doc-only Update for Inspector: Adding SDK code snippets for Inspector
* `service/sqs`: Updates service documentation

SDK Bug Fixes
---
* `aws/request`: Add PriorRequestNotComplete to throttle retry codes (#1011)
  * Fixes: Not retrying when PriorRequestNotComplete #1009

SDK Feature
---
* `private/model/api`: Adds crosslinking to service documentation (#1010)

Release v1.6.4 (2016-12-15)
===

Service Client Updates
---
* `service/cognitoidentityprovider`: Updates service API and documentation
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/ssm`: Updates service API and documentation
  * This will provide customers with access to the Patch Baseline and Patch Compliance APIs.

SDK Bug Fixes
---
* `service/route53`: Fix URL path cleaning for Route53 API requests (#1006)
  * Fixes: SerializationError when using Route53 ChangeResourceRecordSets #1005
* `aws/request`: Add PriorRequestNotComplete to throttle retry codes (#1002)
  * Fixes: Not retrying when PriorRequestNotComplete #1001

Release v1.6.3 (2016-12-14)
===

Service Client Updates
---
* `service/batch`: Adds new service
  * AWS Batch is a batch computing service that lets customers define queues and compute environments and then submit work as batch jobs.
* `service/databasemigrationservice`: Updates service API and documentation
  * Adds support for SSL enabled Oracle endpoints and task modification.
* `service/elasticbeanstalk`: Updates service documentation
* `aws/endpoints`: Updated Regions and Endpoints metadata.
* `service/cloudwatchlogs`: Updates service API and documentation
  * Add support for associating LogGroups with AWSTagris tags
* `service/marketplacecommerceanalytics`: Updates service API and documentation
  * Add new enum to DataSetType: sales_compensation_billed_revenue
* `service/rds`: Updates service documentation
  * Doc-only Update for RDS: New versions available in CreateDBInstance
* `service/sts`: Updates service documentation
  * Adding Code Snippet Examples for SDKs for STS

SDK Bug Fixes
---
* `aws/request`: Fix retrying timeout requests (#981)
  * Fixes: Requests Retrying is broken if the error was caused due to a client timeout #947
* `aws/request`: Fix for Go 1.8 request incorrectly sent with body (#991)
  * Fixes: service/route53: ListHostedZones hangs and then fails with go1.8 #984
* private/protocol/rest: Use RawPath instead of Opaque (#993)
  * Fixes: HTTP2 request failing with REST protocol services, e.g AWS X-Ray
* private/model/api: Generate REST-JSON JSONVersion correctly (#998)
  * Fixes: REST-JSON protocol service code missing JSONVersion metadata.

Release v1.6.2 (2016-12-08)
===

Service Client Updates
---
* `service/cloudfront`: Add lambda function associations to cache behaviors
* `service/codepipeline`: This is a doc-only update request to incorporate some recent minor revisions to the doc content.
* `service/rds`: Updates service API and documentation
* `service/wafregional`: With this new feature, customers can use AWS WAF directly on Application Load Balancers in a VPC within available regions to protect their websites and web services from malicious attacks such as SQL injection, Cross Site Scripting, bad bots, etc.

Release v1.6.1 (2016-12-07)
===

Service Client Updates
---
* `service/config`: Updates service API
* `service/s3`: Updates service API
* `service/sqs`: Updates service API and documentation

Release v1.6.0 (2016-12-06)
===

Service Client Updates
---
* `service/config`: Updates service API and documentation
* `service/ec2`: Updates service API
* `service/sts`: Updates service API, documentation, and examples

SDK Bug Fixes
---
* private/protocol/xml/xmlutil: Fix SDK XML unmarshaler #975
  * Fixes GetBucketACL Grantee required type always nil. #916

SDK Feature
---
* aws/endpoints: Add endpoint metadata to SDK #961
  * Adds Region and Endpoint metadata to the SDK. This allows you to enumerate regions and endpoint metadata based on a defined model embedded in the SDK.

Release v1.5.13 (2016-12-01)
===

Service Client Updates
---
* `service/apigateway`: Updates service API and documentation
* `service/appstream`: Adds new service
* `service/codebuild`: Adds new service
* `service/directconnect`: Updates service API and documentation
* `service/ec2`: Adds new service
* `service/elasticbeanstalk`: Updates service API and documentation
* `service/health`: Adds new service
* `service/lambda`: Updates service API and documentation
* `service/opsworkscm`: Adds new service
* `service/pinpoint`: Adds new service
* `service/shield`: Adds new service
* `service/ssm`: Updates service API and documentation
* `service/states`: Adds new service
* `service/xray`: Adds new service

Release v1.5.12 (2016-11-30)
===

Service Client Updates
---
* `service/lightsail`: Adds new service
* `service/polly`: Adds new service
* `service/rekognition`: Adds new service
* `service/snowball`: Updates service API and documentation

Release v1.5.11 (2016-11-29)
===

Service Client Updates
---
`service/s3`: Updates service API and documentation

Release v1.5.10 (2016-11-22)
===

Service Client Updates
---
* `service/cloudformation`: Updates service API and documentation
* `service/glacier`: Updates service API, documentation, and examples
* `service/route53`: Updates service API and documentation
* `service/s3`: Updates service API and documentation

SDK Bug Fixes
---
* `private/protocol/xml/xmlutil`: Fixes xml marshaler to unmarshal properly
into tagged fields 
[#916](https://github.com/aws/aws-sdk-go/issues/916)

Release v1.5.9 (2016-11-22)
===

Service Client Updates
---
* `service/cloudtrail`: Updates service API and documentation
* `service/ecs`: Updates service API and documentation

Release v1.5.8 (2016-11-18)
===

Service Client Updates
---
* `service/application-autoscaling`: Updates service API and documentation
* `service/elasticmapreduce`: Updates service API and documentation
* `service/elastictranscoder`: Updates service API, documentation, and examples
* `service/gamelift`: Updates service API and documentation
* `service/lambda`: Updates service API and documentation

Release v1.5.7 (2016-11-18)
===

Service Client Updates
---
* `service/apigateway`: Updates service API and documentation
* `service/meteringmarketplace`: Updates service API and documentation
* `service/monitoring`: Updates service API and documentation
* `service/sqs`: Updates service API, documentation, and examples

Release v1.5.6 (2016-11-16)
===

Service Client Updates
---
`service/route53`: Updates service API and documentation
`service/servicecatalog`: Updates service API and documentation

Release v1.5.5 (2016-11-15)
===

Service Client Updates
---
* `service/ds`: Updates service API and documentation
* `service/elasticache`: Updates service API and documentation
* `service/kinesis`: Updates service API and documentation

Release v1.5.4 (2016-11-15)
===

Service Client Updates
---
* `service/cognito-idp`: Updates service API and documentation

Release v1.5.3 (2016-11-11)
===

Service Client Updates
---
* `service/cloudformation`: Updates service documentation and examples
* `service/logs`: Updates service API and documentation

Release v1.5.2 (2016-11-03)
===

Service Client Updates
---
* `service/directconnect`: Updates service API and documentation

Release v1.5.1 (2016-11-02)
===

Service Client Updates
---
* `service/email`: Updates service API and documentation

Release v1.5.0 (2016-11-01)
===

Service Client Updates
---
* `service/cloudformation`: Updates service API and documentation
* `service/ecr`: Updates service paginators

SDK Feature Updates
---
* `private/model/api`: Add generated setters for API parameters (#918)
  * Adds setters to the SDK's API parameter types, and are a convenience method that reduce the need to use `aws.String` and like utility. 

Release v1.4.22 (2016-10-25)
===

Service Client Updates
---
* `service/elasticloadbalancingv2`: Updates service documentation.
* `service/autoscaling`: Updates service documentation.

Release v1.4.21 (2016-10-24)
===

Service Client Updates
---
* `service/sms`: AWS Server Migration Service (SMS) is an agentless service which makes it easier and faster for you to migrate thousands of on-premises workloads to AWS. AWS SMS allows you to automate, schedule, and track incremental replications of live server volumes, making it easier for you to coordinate large-scale server migrations.
* `service/ecs`: Updates documentation.

SDK Feature Updates
---
* `private/models/api`: Improve code generation of documentation.

Release v1.4.20 (2016-10-20)
===

Service Client Updates
---
* `service/budgets`: Adds new service, AWS Budgets.
* `service/waf`: Updates service documentation.

Release v1.4.19 (2016-10-18)
===

Service Client Updates
---
* `service/cloudfront`: Updates service API and documentation.
  * Ability to use Amazon CloudFront to deliver your content both via IPv6 and IPv4 using HTTP/HTTPS.
* `service/configservice`: Update service API and documentation.
* `service/iot`: Updates service API and documentation.
* `service/kinesisanalytics`: Updates service API and documentation.
  * Whenever Amazon Kinesis Analytics is not able to detect schema for the given streaming source on DiscoverInputSchema API, we would return the raw records that was sampled to detect the schema.
* `service/rds`: Updates service API and documentation.
  * Amazon Aurora integrates with other AWS services to allow you to extend your Aurora DB cluster to utilize other capabilities in the AWS cloud. Permission to access other AWS services is granted by creating an IAM role with the necessary permissions, and then associating the role with your DB cluster.

SDK Feature Updates
---
* `service/dynamodb/dynamodbattribute`: Add UnmarshalListOfMaps #897
  * Adds support for unmarshaling a list of maps. This is useful for unmarshaling the DynamoDB AttributeValue list of maps returned by APIs like Query and Scan.

Release v1.4.18 (2016-10-17)
===

Service Model Updates
---
* `service/route53`: Updates service API and documentation.

Release v1.4.17
===

Service Model Updates
---
* `service/acm`: Update service API, and documentation.
  * This change allows users to import third-party SSL/TLS certificates into ACM.
* `service/elasticbeanstalk`: Update service API, documentation, and pagination.
  * Elastic Beanstalk DescribeApplicationVersions API is being updated to support pagination.
* `service/gamelift`: Update service API, and documentation.
  * New APIs to protect game developer resource (builds, alias, fleets, instances, game sessions and player sessions) against abuse.

SDK Features
---
* `service/s3`: Add support for accelerate with dualstack [#887](https://github.com/aws/aws-sdk-go/issues/887)

Release v1.4.16 (2016-10-13)
===

Service Model Updates
---
* `service/ecr`: Update Amazon EC2 Container Registry service model
  * DescribeImages is a new api used to expose image metadata which today includes image size and image creation timestamp.
* `service/elasticache`: Update Amazon ElastiCache service model
  * Elasticache is launching a new major engine release of Redis, 3.2 (providing stability updates and new command sets over 2.8), as well as ElasticSupport for enabling Redis Cluster in 3.2, which provides support for multiple node groups to horizontally scale data, as well as superior engine failover capabilities 

SDK Bug Fixes
---
* `aws/session`: Skip shared config on read errors [#883](https://github.com/aws/aws-sdk-go/issues/883)
* `aws/signer/v4`: Add support for URL.EscapedPath to signer [#885](https://github.com/aws/aws-sdk-go/issues/885)

SDK Features
---
* `private/model/api`: Add docs for errors to API operations [#881](https://github.com/aws/aws-sdk-go/issues/881)
* `private/model/api`: Improve field and waiter doc strings [#879](https://github.com/aws/aws-sdk-go/issues/879)
* `service/dynamodb/dynamodbattribute`: Allow multiple struct tag elements [#886](https://github.com/aws/aws-sdk-go/issues/886)
* Add build tags to internal SDK tools [#880](https://github.com/aws/aws-sdk-go/issues/880)

Release v1.4.15 (2016-10-06)
===

Service Model Updates
---
* `service/cognitoidentityprovider`: Update Amazon Cognito Identity Provider service model
* `service/devicefarm`: Update AWS Device Farm documentation
* `service/opsworks`: Update AWS OpsWorks service model
* `service/s3`: Update Amazon Simple Storage Service model
* `service/waf`: Update AWS WAF service model

SDK Bug Fixes
---
* `aws/request`: Fix HTTP Request Body race condition [#874](https://github.com/aws/aws-sdk-go/issues/874)

SDK Feature Updates
---
* `aws/ec2metadata`: Add support for EC2 User Data [#872](https://github.com/aws/aws-sdk-go/issues/872)
* `aws/signer/v4`: Remove logic determining if request needs to be resigned [#876](https://github.com/aws/aws-sdk-go/issues/876)

Release v1.4.14 (2016-09-29)
===
* `service/ec2`:  api, documentation, and paginators updates.
* `service/s3`:  api and documentation updates.

Release v1.4.13 (2016-09-27)
===
* `service/codepipeline`:  documentation updates.
* `service/cloudformation`:  api and documentation updates.
* `service/kms`:  documentation updates.
* `service/elasticfilesystem`:  documentation updates.
* `service/snowball`:  documentation updates.
