# Document history The following table describes the important changes since the last release of the *Amazon Directory Service Administrator Guide*. | Change | Description | Date | | --- |--- |--- | | [Dual-stack network type support](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_update-directory-type.html) | Amazon Directory Service now supports upgrading directory network type from IPv4 to dual stack (IPv4 and IPv6). This feature provides a larger address space and enables IPv6 connectivity for your directories. You can also update your [AD Connector directories](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ad_connector_update-directory-type.html) and [Simple AD directories](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/simple_ad_update-directory-type.html) with dual stack support. | September 30, 2025 | | [New Amazon service linked role](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates) | Amazon Directory Service adds new Amazon service linked role, AWSServiceRoleForDirectoryService and Amazon managed policy, AWSDirectoryServiceServiceRolePolicy. Policy allows Amazon to monitor customer managed domain controllers. | July 30, 2025 | | [Amazon Managed Microsoft AD (Hybrid Edition)](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/aws-hybrid-directory.html) | *Amazon Managed Microsoft AD (Hybrid Edition)* connects your self-managed Active Directory with Amazon Directory Service for Microsoft Active Directory, creating an integrated identity environment spanning both your infrastructure and the Amazon Web Services Cloud. | July 30, 2025 | | [Updated logging and monitoring topic - new sections](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/incident-response.html) | Included sections for Amazon Directory Service and Amazon Directory Service Data in logging and monitoring topic. | September 18, 2024 | | [New Directory Service Data API and attributes](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ad_data_attributes.html) | Amazon Directory Service Data provides built-in object management. You can now find and update objects with a [list of supported AD attributes](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ad_data-attributes.html). | September 18, 2024 | | [Amazon managed policies - new policies](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/security-iam-awsmanpol.html) | Amazon Directory Service Data adds new Amazon managed policies: AWSDirectoryServiceDataFullAccess and AWSDirectoryServiceDataReadOnlyAccess. The policies grant access to Directory Service Data object management. | September 18, 2024 | | [Amazon PrivateLink](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/vpc-interface-endpoints.html) | Added content about Amazon PrivateLink. | March 31, 2023 | | [Simple AD VPC Endpoints](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/prereq_simple.html) | Added content about which VPC endpoints should not be configured. | August 25, 2021 | | [AD Connector VPC Endpoints](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/prereq_connector.html) | Added content about which VPC endpoints should not be configured. | August 25, 2021 | | [Smart card support](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ad_connector_clientauth.html) | Added content about support for smart cards and Amazon WorkSpaces Application Manager in Amazon GovCloud (US-West) Region | December 1, 2020 | | [Password reset](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_manage_users_groups_reset_password.html) | Added content about how to reset user passwords using the Amazon Web Services Management Console, PowerShell and Amazon CLI. | January 2, 2019 | | [Directory sharing](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_directory_sharing.html) | Added content about how to use directory sharing with Amazon Managed Microsoft AD. | September 25, 2018 | | [Migrated content to new Amazon Cloud Directory Developer Guide](https://docs.amazonaws.cn/clouddirectory/latest/developerguide/what_is_cloud_directory.html) | Moved the Amazon Cloud Directory content from this guide to the new *Amazon Cloud Directory Developer Guide*. | June 21, 2018 | | [Complete overhaul of the admin guide TOC](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/what_is.html) | Reorganized the content to more directly address customer needs. Also added new content where needed. | April 5, 2018 | | [Amazon delegated groups](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_getting_started_what_gets_created.html) | Added list of Amazon delegated groups that can be assigned to on-premises users. | March 8, 2018 | | [Fine-grained password policies](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_password_policies.html) | Added content about new password policies. | July 5, 2017 | | [Additional domain controllers](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_deploy_additional_dcs.html) | Added content about how to add more domain controllers to your directory in Amazon Managed Microsoft AD. | June 30, 2017 | | [Tutorials](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_tutorial_test_lab.html) | Added new tutorials for testing a Amazon Managed Microsoft AD lab environment. | June 21, 2017 | | [MFA with Amazon Managed Microsoft AD](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_mfa.html) | Added content about using MFA with Amazon Managed Microsoft AD. | February 13, 2017 | | [Amazon Cloud Directory](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/what_is.html) | Added content about a new directory type. | January 26, 2017 | | [Schema extensions](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_schema_extensions.html) | Added content about schema extensions with Amazon Directory Service for Microsoft Active Directory. | November 14, 2016 | | [Major reorganization of the Amazon Directory Service Administrator Guide](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/what-is.html) | Reorganized the content to more directly address customer needs. | November 14, 2016 | | [SNS notifications](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_enable_notifications.html) | Added content about SNS notifications. | February 25, 2016 | | [Authorization and authentication](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/iam_auth_access.html) | Added content about how to use IAM with Amazon Directory Service. | February 25, 2016 | | [Amazon Managed Microsoft AD](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/directory_microsoft_ad.html) | Added content about Amazon Managed Microsoft AD and combined guides into a single guide. | November 17, 2015 | | [Allow Linux instances to be joined to a Simple AD directory](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/join_linux_instance.html) | Added content about how to join a Linux instance to a Simple AD directory. | July 23, 2015 | | [Guide separation](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/what_is.html) | Split the *Amazon Directory Service Administration Guide* into separate guides. | July 14, 2015 | | [Single sign-on support](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/ms_ad_single_sign_on.html) | Added content about support for single sign-on. | March 31, 2015 | | [New guide](https://docs.amazonaws.cn/directoryservice/latest/admin-guide/what_is.html) | This is the first release of the *Amazon Directory Service Administration Guide*. | October 21, 2014 |