Apple has gone a long time without making significant changes to any of its Mac models, with most experts encouraging customers to hold off all but essential new purchases until the lineup was updated. Tops among the rumors have been reports that Apple will introduce a new MacBook Pro sporting a row of customizable touchscreen keys.
Sierra, for its part, adds support for Apple's Siri voice assistant and the ability to copy and paste between iOS and MacOS devices, among other features.
More from Recode:
Apple's new patent is basically a giant flower pot
Instagrambrings stories to the explore tab
Clinton campaign considered Bill Gates, Tim Cook for VP
The Mac event is expected to take place at or near Apple's Cupertino campus rather than in San Francisco, where the company held many recent events, including the iPhone 7 announcement.
It's going to be a busy week. Apple has its earnings report on Tuesday, Microsoft is holding a Windows 10 hardware event in New York on Wednesday and then the new Macs will debut on Thursday.
Apple declined to comment.
—Ina Fried, Recode.net.
CNBC's parent NBCUniversal is an investor in Recode's parent Vox, and the companies have a content-sharing arrangement.