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Upgrade and downgrade a NetScaler appliance

September 9, 2025

Contributed by:

C S

Important:

File-based licensing system (also referred to as manually managed entitlements), traditionally used for activating various on-premises components, will be End of Life (EOL) on April 15, 2026. License Activation Service (LAS) is the next generation technology for product activations across the suite of Citrix products. LAS will be the only way to activate and license NetScaler instances after April 15, 2026, supporting NetScaler Flexed licenses (CPL/UHMC), legacy NetScaler Pooled licenses, and NetScaler Fixed term Bandwidth licenses. To remain supported, your NetScaler and NetScaler Console deployments must be on a LAS compatible version.

The minimum required NetScaler versions that are LAS compatible are:

NetScaler ADCs: 14.1-51.x, 13.1-60.x, 13.1-37.x (FIPS)

NetScaler SVM: 14.1-51.x, 13.1-60.x

NetScaler Console Service: Supported from early September, 2025

All the other forms of legacy NetScaler licenses such as Pooled vCPU, CICO, perpetual will not be supported with LAS. NetScaler instances leveraging perpetual licenses without an active maintenance will become unlicensed upon upgrade to the above mentioned software versions.

LAS based licenses may not be available to customers where prohibited by law or regulations.

If you have questions or concerns, contact Customer Care. Citrix may limit or suspend your Citrix Maintenance for non-compliance with these requirements without liability in addition to any other remedies Citrix may have at law or equity. These requirements don’t apply where prohibited by law or regulation.

NetScaler 14.1 offers new and updated features with increased functionality. A comprehensive list of enhancements is listed in the release notes accompanying the release announcement. Read the release notes document before you upgrade your software.

This section provides information about upgrading and downgrading a NetScaler appliance (MPX and VPX) firmware by using the NetScaler GUI or CLI.

You can also use NetScaler Console to upgrade a NetScaler appliance. For more information, see:

For information about upgrading a NetScaler SDX appliance, see Single Bundle Upgrade.

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

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NetScaler Secure Deployment Guide

Upgrade and downgrade a NetScaler appliance

September 9, 2025

Contributed by:

C S

September 9, 2025

Contributed by:

C S

Upgrade and downgrade a NetScaler appliance

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