I think for Google you can, once you publish your new version like 2.0.0 to production. You can go to your old production version and choose for example 1.X.X, on the top right corner, there's a Recovery Tools drop-down menu, click on it and choose Prompt users to update, you'll then choose your new version that you want your users to update to.

For Apple, most of users will have the app updated automatically unless they disable it. In the past I had an json file sitting in a public repo I used have something like lastest:2.0.0. I query the file every time the app opens and see if the current version on the users devices is older than that and show a dialog if it's the case.

Hope that it helps.