Merge pull request #110259 from tnorling/tnorling-msaljs-updates

Update handleRedirectCallback requirement in MSAL.js

Author: PRMerger16

articles/active-directory/develop/msal-js-initializing-client-applications.md

@@ -32,7 +32,7 @@ Before initializing an application, you first need to [register it with the Azur
 
 You can use MSAL.js as follows in a plain JavaScript/Typescript application. Initialize MSAL authentication context by instantiating `UserAgentApplication` with a configuration object. The minimum required config to initialize MSAL.js is the clientID of your application which you should get from the application registration portal.
 
-For authentication methods with redirect flows (`loginRedirect` and `acquireTokenRedirect`), you will need to explicitly register a callback for success or error through `handleRedirectCallback()` method. This is needed since redirect flows do not return promises as the methods with a pop-up experience do.
+For authentication methods with redirect flows (`loginRedirect` and `acquireTokenRedirect`), in MSAL.js 1.2.x or earlier, you will need to explicitly register a callback for success or error through `handleRedirectCallback()` method. This is needed since redirect flows do not return promises as the methods with a pop-up experience do. This became optional in MSAL.js version 1.3.0.
 
 ```javascript
 // Configuration object constructed