My Dutch 4.2.5 version offers to update to
WordPress 4.3.1–en_US when I visit the dashboard.
I'm surprised that it does not offer an upgrade to something like
Will this work properly?
I do not remember how this went with earlier versions (i.e. what those offered).
[Edited to add]
Five minutes after posting this question a mail comes in which translates to: Your site has been automatically updated to WordPress 4.2.5. It is correct that automatic updates are on for this specific site.
What is going on?