On a site without the intl extension installed, badge counters (e.g. Utilities -> available updates) display with decimals (i.e. 1.00 instead of 1).
The badge counters are localized (i.e. changing the CP's language to nb display badge counters as 1,00).
Installing the intl extension fixes the issue.

intl extension installed
Fixed for the next release, thanks for reporting!
Most helpful comment
Fixed for the next release, thanks for reporting!