Illumio Core What's New and Release Notes 21.5Illumio Core Release Notes 21.5Product VersionProduct VersionPCE Version (On Premises): 21.5.35 (LTS)VEN Version: 21.5.36Illumio Core release numbering uses the following format: “a.b.c-d+e”.“a.b”: Standard or LTS release number, for example, “2.2”“.c”: Maintenance release number, for example, “.1”“-d”: Optional descriptor for pre-release versions, for example, “preview2”