Go into the plugins tab of your app.

For any plugins marked as "needs update", change the plugin’s currently installed version to the latest version in the currently installed version dropdown. If there are plugins that are marked as "deprecated", uninstall that plugin and find an alternative on the marketplace.

Test out your app’s functionality with your newly updated plugins to make sure everything still works as expected. You can use the app search tool to find places in your app where you use affected plugins.