Hello everyone, We are excited to announce that the *OpenAPI Tester add-on version 1.1.0* is now released and available in the Oxygen add-on library! Version 1.1.0 of the add-on comes with the following improvements: * You can now use the testing tool for OpenAPI documents represented in YAML format, as well as in JSON format. * Added basic support for the OpenAPI 3.1.0 specification (except for webhooks). * Various bugs related to schema references and rendering parameters were fixed. * The layout of the view has been improved. To install the add-on, follow these instructions: 1.Go to *Help > Install new add-ons* to open an add-on selection dialog box. 2. Enter or paste https://www.oxygenxml.com/InstData/Addons/default/updateSite.xml in the *Show add-ons from* field or select it from the drop-down menu. 3. Select the *OpenAPI Tester* add-on and click *Next*. 4. Read the end-user license agreement. Then select the I accept all terms of the end-user license agreement option and click Finish. 5. Restart the application. *Result:* The OpenAPI Tester is now available. To use the tool, select *OpenAPI Tester* from the *Tools > JSON Tools* menu. This opens a dialog box where you can specify the location of the OpenAPI file that you want to test. For more information on the OpenAPI Tester add-on, we invite you to check the page below: https://www.oxygenxml.com/doc/ug-editor/topics/openapi-tester.html We hope you will find this add-on useful and as always, your feedback is welcome! Best regards, Alin -- Alin Belu Oxygen XML Editor