It has been a productive day for Apple, as the company released some big changes to the App Store. And now it’s even hinted at an OS X rebranding again.

Earlier today, Apple updated its App Store with some major changes, including the way the company handles subscriptions for apps. Previously the option was only available for a few different app categories, like dating apps and streaming services, and the revenue split was 70/30 for developers. Now, though, Apple’s opened up the subscription option for all apps, and after a subscriber’s been active for a year that revenue split will actually shift to 85/15 for the developer.

Now something else has been revealed on the new guidelines that Apple published recently. Apple lists “macOS” as one of the platforms which an app can be eligible for the aforementioned revenue split for subscription options. This isn’t the first time that we’ve seen the hint of a potential rebrand for Apple’s desktop operating system, either.

The first one popped up in late March, when “macOS” showed up in the OS X 10.11.4 framework. Then, in the middle of April, Apple’s dedicate page related to the environment and the company’s impact on it hinted at “MacOS,” instead of OS X.

At this point we’ve seen “macOS” twice, and “MacOS” only once, and considering the other platforms all feature lower-case titles (iOS, watchOS, tvOS), Apple could probably follow suit there. As 9to5Mac points out, though, Mac is a proper noun, so it probably should be capitalized. Of course it’s Apple so they can do whatever they want.

Either way, it looks like we’re getting a rebranding of OS X at this year’s WWDC, which is set to take place between June 13 and June 17 (which will be live streamed!)