Track ENA Windows driver version releases
Windows AMIs include the ENA Windows driver to enable enhanced networking.
The following table shows the corresponding ENA driver version to download for each Windows Server version.
Windows Server version | ENA driver version |
---|---|
Windows Server 2022 |
2.4.0 and later |
Windows Server 2019 |
latest |
Windows Server 2016 | latest |
Windows Server 2012 R2 | 2.6.0 and earlier |
Windows Server 2012 | 2.6.0 and earlier |
Windows Server 2008 R2 | 2.2.3 and earlier |
ENA Windows driver release notifications with Amazon SNS
Amazon SNS can notify you when new versions of EC2 Windows Drivers are released. Use the following procedure to subscribe to these notifications.
Subscribe to EC2 notifications
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Open the Amazon SNS console at https://console.aws.amazon.com/sns/v3/home
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In the navigation bar, change the Region to US East (N. Virginia), if necessary. You must select this Region because the SNS notifications that you are subscribing to are in this Region.
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In the navigation pane, choose Subscriptions.
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Choose Create subscription.
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In the Create subscription dialog box, do the following:
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For TopicARN, copy the following Amazon Resource Name (ARN):
arn:aws:sns:us-east-1:801119661308:ec2-windows-drivers
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For Protocol, choose
Email
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For Endpoint, enter an email address that you can use to receive the notifications.
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Choose Create subscription.
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You'll receive a confirmation email. Open the email and follow the directions to complete your subscription.
Whenever new EC2 Windows drivers are released, we send notifications to subscribers. If you no longer want to receive these notifications, use the following procedure to unsubscribe.
Unsubscribe from Amazon EC2 Windows driver notification
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Open the Amazon SNS console at https://console.aws.amazon.com/sns/v3/home
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In the navigation pane, choose Subscriptions.
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Select the check box for the subscription and then choose Actions, Delete subscriptions. When prompted for confirmation, choose Delete.
ENA Windows driver version history
The following table summarizes the changes for each release.
Driver version | Details | Release date |
---|---|---|
New Features
Bug Fixes
|
May 1, 2024 | |
New Features
Bug Fixes
|
June 20, 2023 | |
2.5.0 |
AnnouncementENA Windows driver version 2.5.0 has been rolled back due to failure to initialize on the Windows domain controller. Windows Client and Windows Server are unaffected. |
February 17, 2023 |
New Features
Bug Fix
|
April 28, 2022 | |
2.2.4 |
AnnouncementENA Windows driver version 2.2.4 has been rolled back due to potential performance degradation on the sixth generation EC2 instances. We recommend that you downgrade the driver, using one of the following methods:
|
October 26, 2021 |
New Feature
Bug Fix
Windows ENA driver version 2.2.3 is the final version that supports Windows Server 2008 R2. Currently available instance types that use ENA will continue to be supported on Windows Server 2008 R2, and the drivers are available by download. No future instance types will support Windows Server 2008 R2, and you cannot launch, import, or migrate Windows Server 2008 R2 images to future instance types. |
March 25, 2021 | |
New Feature
Bug Fix
|
December 21, 2020 | |
New Feature
|
October 1, 2020 | |
New Features
Performance Optimizations
Bug Fix
|
August 12, 2020 | |
Bug Fix
|
June 23, 2020 | |
Bug Fixes
|
November 25, 2019 | |
New Feature
Bug Fixes
|
November 4, 2019 | |
Bug Fixes
|
September 16, 2019 | |
ENA Windows driver v2.1 introduces new ENA device capabilities,
provides a performance boost, adds new features, and includes
multiple stability improvements.
|
July 1, 2019 | |
|
October 4, 2018 | |
Includes reliability fixes and unifies support for Windows Server 2008 R2 through Windows Server 2016. |
February 13, 2018 | |
The initial release. Included in AMIs for Windows Server 2008 R2, Windows Server 2012 RTM, Windows Server 2012 R2, and Windows Server 2016. |
July 2016 |