Update Survey Solutions (Not self hosted)

Our server is hosted with survey solutions. When I log in, I see a footer saying a new version is available. How do I update?

I am on Ver 19.02.1 (build 24046) and the new version available is 19.04.3 (build 24547).

We update our clients in batches. Your server will be updated at around May 1st. Let us know if you need your server updated sooner.

Thank you. There is no need to change your schedule. I was just curious.