What's New and Changed in Release 25.3
Before upgrading to Illumio Core 25.3, familiarize yourself with the new and modified features in this release for PCE, REST API, and the PCE web console.
Rule-Based Labeling Enhancements
For details about Rule-Based Labeling, see Rule-Based Labeling.
This release introduces the following enhancements to the Rule-Based Labeling feature:
Support for Regular Expressions and NOT operators
Regular Expressions
Regular Expressions (regex) allow you to define complex patterns to precisely match workloads in your environment. This precision is particularly useful when you're trying to find and label workloads that have multiple attributes. www
NOT Operators
NOT operators allow you to refine search queries by excluding certain values. You can combine NOT operators with other search operators (like AND, OR) to create complex queries that precisely target the desired information while excluding irrelevant data.
Support for Overwriting Existing Labels
The Overwrite option allows you to replace labels already assigned to workloads with new labels of the same type. For example, if your labeling rule is set to assign an Application label to matching workloads, selecting this option ensures that any Application label already assigned to these workloads is overwritten by the new Application label when you click Assign.
