About This Release
This documentation portal describes the new features, enhancements, platform support, and new and modified REST APIs for the Illumio Core 21.5 release.
Product Versions
PCE Version: 21.5.35 (LTS) | Illumio Core On-Premises customers and Illumio Core Cloud customers
VEN Version: 21.5.32 (LTS)
For the complete list of Illumio Core components compatible with Illumio Core 21.5.x-PCE, see the Illumio Support portal (log in required).
Standard versus LTS Releases
21.5.35-PCE and 21.5.32-VEN are LTS releases. For information on Illumio software support for Standard and LTS releases, see Versions and Releases on the Illumio Support portal.
Release Types and Numbering
Illumio Core release numbering uses the following format: “a.b.c-d”
“a.b”: Standard or LTS release number, for example “21.5”
“.c”: Maintenance release number, for example “.0”
“-d”: Optional descriptor for pre-release versions, for example “preview2”
General Advisories
The information in this section provides general advisories about important aspects of this release. To ensure proper operation of the system after upgrade, you might need to take account on these advisories.
Supported Operating Systems
The 21.5.30 PCE is supported on operating systems detailed on the Illumio Support portal.
For information, see PCE OS Support and Package Dependencies.
Open Source Package Updates
Illumio updated several open source packages for the PCE in this release. See the “Change History” in Illumio Open Source Licensing Disclosures for information.
The Upgrade to This Release
As part of the upgrade process, Illumio strongly encourages you to review the prior release notes from your previously installed version of Illumio Core to version 21.5.30.
You have the option to upgrade the VENs in your environment at any time. For information about the upgrade path and tools, go to the Illumio Support portal and review the VEN Upgrade paths (login required).
Announcements
End of Support Announcements, Deprecations , Compatibility
End of Support
Illumio REST API v1
The version 1 of Illumio REST APIs (API v1) is not supported effectively with the 21.1 and later releases. Illumio recommends that you upgrade to API v2.
Internet Explorer 11
Illumio Core 19.1 was the last release to support Internet Explorer 11. Internet Explorer 11 is no longer supported in Illumio Core 19.2 and later releases. Illumio recommends Chrome, Edge, or Firefox for use with the PCE web console.
Organization Events
Since the 19.1.0 release, the older form of events, known as “audit or organization events,” is no longer supported or available.
Any versions of the former SIEM Integration Guide that are earlier than version 18.2.1 are valid only for their corresponding versions, not version 18.2.1 or later releases.
Customers should upgrade to the latest version of Illumio Adaptive Security and take advantage of the newly designed auditable events. See the Events Administration Guide for information.