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Azure AD Connect was released several years ago. Since this time, several of the components that Azure AD Connect uses have been scheduled for deprecation and updated to newer versions. To attempt to update all of these components individually would take time and planning.
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To address this, we wanted to bundle as many of these newer components into a new, single release, so you only have to update once. This release will be Azure AD Connect V2.0. This is a new version of the same software used to accomplish your hybrid identity goals that is built using the latest foundational components.
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To address this, we have bundled as many of these newer components into a new, single release, so you only have to update once. This release is Azure AD Connect V2. This is a new version of the same software used to accomplish your hybrid identity goals that is built using the latest foundational components.
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## What are the major changes?
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### MSAL authentication library
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The previous versions of Azure AD Connect shipped with the ADAL authentication library. This library will be deprecated in June 2022. The V2.0 release ships with the newer MSAL library. For more information see [Overview of the MSAL library](../../active-directory/develop/msal-overview.md).
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The previous versions of Azure AD Connect shipped with the ADAL authentication library. This library will be deprecated in June 2022. The V2 release ships with the newer MSAL library. For more information see [Overview of the MSAL library](../../active-directory/develop/msal-overview.md).
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### Visual C++ Redist 14
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SQL Server 2019 requires the Visual C++ Redist 14 runtime, so we are updating the C++ runtime library to use this version. This will be installed with the Azure AD Connect V2.0 package, so you do not have to take any action for the C++ runtime update.
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SQL Server 2019 requires the Visual C++ Redist 14 runtime, so we are updating the C++ runtime library to use this version. This will be installed with the Azure AD Connect V2 package, so you do not have to take any action for the C++ runtime update.
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### TLS 1.2
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TLS1.0 and TLS 1.1 are protocols that are deemed unsafe and are being deprecated by Microsoft. This release of Azure AD Connect will only support TLS 1.2.
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All versions of Windows Server that are supported for Azure AD Connect V2.0 already default to TLS 1.2. If your server does not support TLS 1.2 you will need to enable this before you can deploy Azure AD Connect V2.0. For more information, see [TLS 1.2 enforcement for Azure AD Connect](reference-connect-tls-enforcement.md).
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All versions of Windows Server that are supported for Azure AD Connect V2 already default to TLS 1.2. If your server does not support TLS 1.2 you will need to enable this before you can deploy Azure AD Connect V2. For more information, see [TLS 1.2 enforcement for Azure AD Connect](reference-connect-tls-enforcement.md).
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### All binaries signed with SHA2
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This upgrade is especially important since we have had to update our prerequisites for Azure AD Connect and you may need additional time to plan and update your servers to the newer versions of these prerequisites
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**Is there any new functionality I need to know about?** </br>
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No – this release does not contain any new functionality. This release only contains updates of some of the foundational components on Azure AD Connect.
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No – the V2.0 release does not contain any new functionality. This release only contains updates of some of the foundational components on Azure AD Connect. However, later releases of Azure AD Connect V2 may contain new functionality.
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**Can I upgrade from any previous version to V2.0?** </br>
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Yes – upgrades from any previous version of Azure AD Connect to Azure AD Connect V2.0 is supported. Please follow the guidance in [this article](how-to-upgrade-previous-version.md) to determine what is the best upgrade strategy for you.
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**Can I upgrade from any previous version to V2?** </br>
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Yes – upgrades from any previous version of Azure AD Connect to Azure AD Connect V2 is supported. Please follow the guidance in [this article](how-to-upgrade-previous-version.md) to determine what is the best upgrade strategy for you.
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**Can I export the configuration of my current server and import it in Azure AD Connect V2.0?** </br>
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Yes, you can do that, and it is a great way to migrate to Azure AD Connect V2.0 – especially if you are also upgrading to a new operating system version. You can read more about the Import/export configuration feature and how you can use it in this [article](how-to-connect-import-export-config.md).
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**Can I export the configuration of my current server and import it in Azure AD Connect V2?** </br>
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Yes, you can do that, and it is a great way to migrate to Azure AD Connect V2 – especially if you are also upgrading to a new operating system version. You can read more about the Import/export configuration feature and how you can use it in this [article](how-to-connect-import-export-config.md).
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**I have enabled auto upgrade for Azure AD Connect – will I get this new version automatically?** </br>
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No – Azure AD Connect V2.0 will not be made available for autoupgrade at this time.
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Yes - your Azure AD Connect server will be upgraded to the latest release if you have enabled the auto-upgrade feature. Note that we have no yet release an autop upgrade version for Azure AD Connect.
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**I am not ready to upgrade yet – how much time do I have?** </br>
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You should upgrade to Azure AD Connect V2.0 as soon as you can. **__All Azure AD Connect V1 versions will be retired on 31 August, 2022.__** For the time being we will continue to support older versions of Azure AD Connect, but it may prove difficult to provide a good support experience if some of the components in Azure AD Connect have dropped out of support. This upgrade is particularly important for ADAL and TLS1.0/1.1 as these services might stop working unexpectedly after they are deprecated.
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You should upgrade to Azure AD Connect V2 as soon as you can. **__All Azure AD Connect V1 versions will be retired on 31 August, 2022.__** For the time being we will continue to support older versions of Azure AD Connect, but it may prove difficult to provide a good support experience if some of the components in Azure AD Connect have dropped out of support. This upgrade is particularly important for ADAL and TLS1.0/1.1 as these services might stop working unexpectedly after they are deprecated.
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**I use an external SQL database and do not use SQL 2012 LocalDb – do I still have to upgrade?** </br>
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Yes, you still need to upgrade to remain in a supported state even if you do not use SQL Server 2012, due to the TLS1.0/1.1 and ADAL deprecation. Note that SQL Server 2012 can still be used as an external SQL database with Azure AD Connect V2.0 - the SQL 2019 drivers in Azure AD Connect V2.0 are compatible with SQL Server 2012.
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Yes, you still need to upgrade to remain in a supported state even if you do not use SQL Server 2012, due to the TLS1.0/1.1 and ADAL deprecation. Note that SQL Server 2012 can still be used as an external SQL database with Azure AD Connect V2 - the SQL 2019 drivers in Azure AD Connect V2 are compatible with SQL Server 2012.
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**After the upgrade of my Azure AD Connect instance to V2.0, will the SQL 2012 components automatically get uninstalled?** </br>
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**After the upgrade of my Azure AD Connect instance to V2, will the SQL 2012 components automatically get uninstalled?** </br>
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No, the upgrade to SQL 2019 does not remove any SQL 2012 components from your server. If you no longer need these components then you should follow [the SQL Server uninstallation instructions](/sql/sql-server/install/uninstall-an-existing-instance-of-sql-server-setup).
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**What happens if I do not upgrade?** </br>
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Until one of the components that are being retired are actually deprecated, you will not see any impact. Azure AD Connect will keep on working.
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We expect TLS 1.0/1.1 to be deprecated in January 2022, and you need to make sure you are not using these protocols by that date as your service may stop working unexpectedly. You can manually configure your server for TLS 1.2 though, and that does not require an update of Azure AD Connect to V2.0
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We expect TLS 1.0/1.1 to be deprecated in 2022, and you need to make sure you are not using these protocols by that date as your service may stop working unexpectedly. You can manually configure your server for TLS 1.2 though, and that does not require an update of Azure AD Connect to V2
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In June 2022, ADAL will go out of support. When ADAL goes out of support authentication may stop working unexpectedly and this will block the Azure AD Connect server from working properly. We strongly advise you to upgrade to Azure AD Connect V2.0 before June 2022. You cannot upgrade to a supported authentication library with your current Azure AD Connect version.
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In June 2022, ADAL is planned to go out of support. When ADAL goes out of support authentication may stop working unexpectedly and this will block the Azure AD Connect server from working properly. We strongly advise you to upgrade to Azure AD Connect V2 before June 2022. You cannot upgrade to a supported authentication library with your current Azure AD Connect version.
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**After upgrading to 2.0 the ADSync PowerShell cmdlets do not work?** </br>
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This is a known issue. To resolve this, restart your PowerShell session after installing or upgrading to version 2.0 and then re-import the module. Use the following instructions to import the module.
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**After upgrading to 2 the ADSync PowerShell cmdlets do not work?** </br>
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This is a known issue. To resolve this, restart your PowerShell session after installing or upgrading to version 2 and then re-import the module. Use the following instructions to import the module.
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1. Open Windows PowerShell with administrative privileges.
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1. Type or copy and paste the following code:
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Import-module -Name "C:\Program Files\Microsoft Azure AD Sync\Bin\ADSync"
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```
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## License requirements for using Azure AD Connect V2.0
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## License requirements for using Azure AD Connect V2
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