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Kong Gateway 3.5.x breaking changes

Before upgrading, review any configuration or breaking changes in this version and prior versions that affect your current installation.

You may need to adopt different upgrade paths depending on your deployment methods, set of features in use, custom plugins, for example.

Dev Portal and Vitals

As of this release, the product component known as Kong Enterprise Portal is no longer included in the Kong Gateway Enterprise (previously known as Kong Enterprise) software package. Existing customers who have purchased Kong Enterprise Portal can continue to use it and be supported via a dedicated mechanism.

If you have purchased Kong Enterprise Portal in the past and would like to continue to use it with this release or a future release of Kong Gateway Enterprise, contact Kong Support for more information.

In addition, the product component known as Vitals is deprecated and is no longer included in Kong Gateway Enterprise. Kong Konnect users can take advantage of our API Analytics offering, which provides a superset of Vitals functionality.

Vitals continues to be supported for existing customers until August 2026 via the Kong Enterprise 3.4 LTS release.

Plugin Changes

Kong Gateway now requires an Enterprise license to use dynamic plugin ordering.

Session Plugin

Kong Gateway 3.5.x introduced the new configuration field read_body_for_logout with a default value of false. This change alters the behavior of logout_post_arg in such a way that it is no longer considered, unless read_body_for_logout is explicitly set to true. This adjustment prevents the Session plugin from automatically reading request bodies for logout detection, particularly on POST requests.

Configuration changes

The default value of the dns_no_sync option has been changed to on for 3.5.0.0 and 3.5.0.1. As of 3.5.0.2, the default value has been changed to off.