ADC Upgrade Best practices

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Instructions

Before you begin:
https://docs.citrix.com/en-us/citrix-adc/current-release/upgrade-downgrade-citrix-adc-appliance/upgrade-downgrade-before-you-begin.html
 
Download ADC version:
https://www.citrix.com/downloads/citrix-adc/firmware/
 
How to upgrade your ADC version
https://docs.citrix.com/en-us/citrix-adc/current-release/upgrade-downgrade-citrix-adc-appliance/upgrade-standalone-appliance.html#:~:text=Follow%20these%20steps%20to%20upgrade,the%20GUI%2C%20click%20System%20Upgrade

To apply version 13.1 onwards, all policies will need to be Advanced since classic policies are deprecated. This also can generate some issues for the upgrade being applied, as a suggestion modify all policies to Advance in order to avoid any kind of downtime in environment after the upgrade.
https://docs.citrix.com/en-us/citrix-adc/current-release/appexpert/policies-and-expressions/introduction-to-policies-and-exp/classic-policy-deprecation-faq.html
 
Configure advanced policies
https://docs.citrix.com/en-us/citrix-adc/current-release/appexpert/policies-and-expressions/adv-policy-expressions-getting-started/basic-elements-adv-policy-expression.html

ADC Scripts (GitHub)
ADC-scripts/nspepi at master · citrix/ADC-scripts · GitHub
 

Converting policy expressions using the NSPEPI tool
https://docs.citrix.com/en-us/citrix-adc/current-release/appexpert/policies-and-expressions/introduction-to-policies-and-exp/converting-policy-expressions-nspepi-tool.html
 

Summary examples of advanced policy expressions and policies
https://docs.citrix.com/en-us/citrix-adc/current-release/appexpert/policies-and-expressions/summary-examples-of-adv-policy-exp.html

 

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To upgrade your ADC is important to take xare about some best practices to avoid any kind of negative impact applying the change. Here you can find all the neccesary documentaion to upgrade your ADC in a secure and effective way.