Last week, Apple released a new battery replacement program for selected 13-inch MacBook Pros without touch bars. According to the page on the Apple website, a "limited number" of 13-inch MacBook Pro units shipped with a component that could fail, which in turn would expand the battery. Although Apple assures consumers that this is not a security issue (your laptop will not explode), it replaces the batteries for free.
Unfortunately, that's all we know about the problem. Apple has not specified any details, but if you own a 13-inch MacBook Pro that was made between October 2016 and October 2017, you may be able to purchase a new battery. All you have to do is go to this page and enter the serial number of your MacBook.
If you find out from the website that your MacBook is affected by this issue, you have a few options. You can find an Apple Authorized Service Provider near you, make an appointment at an Apple Retail Store, or send your computer to the Apple Repair Center. Whichever option you choose, Apple will check your computer to make sure it's eligible and working. If so, the service could take between 3 and 5 days.
Apple points out that this is not a way for MacBook owners to get a free repair. Additional damage that compromises Apple's ability to replace the battery can be costly and Apple will not extend the standard warranty on your computer. The good news is that the battery replacement program will take five years.