On this pageAccessibilityGuidelinesVersion enumPlatform: EspressoLanguage: JavaOther languages ▼Selenium JavaSelenium CsharpImagesappkit ObjectivecPuppeteer JavascriptImages JavaImages PythonImages CsharpImages JavascriptImages ObjectivecSelenium JavascriptWdio4 JavascriptPlaywright JavascriptNightwatch JavascriptXcui ObjectivecProtractor JavascriptAppium JavaAppium CsharpWdiogeneric JavascriptEspresso JavaDefines which version of the accessibility standard is used when verifying accessibility. WCAG_2_0 Version 2.0 of the WCAG specification WCAG_2_1 Version 2.1 of the WCAG specification