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Following previous notifications to End of Sale, Citrix has announced that version 11.1 of the Citrix ADC (formerly Citrix NetScaler) operating software will go End of Life as of 31st December 2021.

What does End of Life mean?

End of Life is the date that signifies when technical support and product downloads will no longer be available. Technical support for issues will be limited to information contained in the Citrix Knowledge Center and Support Forums. If the issues cannot be corrected through this method, then an upgrade path or migration to the latest version or product replacement is recommended.

What action do I need to take?

If you are still running version 11.1, Citrix recommend you take steps to upgrade to the latest version of the Citrix ADC (NetScaler) operating system to take advantage of the advanced features and fixes. This will ensure best service coverage over the life of the product.

You could upgrade to the latest version – 13.1, or prefer the more mature 13.0 or 12.1 choices. There are benefits and advantages of both. If in doubt, shout! We can take a look at your config and advise as to the best course of action to limit disruption to your services.

Please check the Citrix Downloads site for the most current firmware build.

Not sure what to do for the best? Let us manage that for you

Struggling to keep up with product updates, versions, releases, EoL notifications, or scheduling day to day management tasks on your NetScalers? Our Citrix ADC (NetScaler) Managed Service packages are available from £995 per month for a HA pair.


To learn more or schedule a call with a specialist. Call 0330 010 3443 or email