https://arstechnica.com/gadgets/2019/05/apple-refreshes-macbook-pro-with-updated-keyboard-8-core-9th-gen-intel-cpus/

In the second update to the current crop of MacBook Pros since they were released in July 2018, Apple this week has expanded the available CPU options for both the 13-inch and 15-inch models. The 15-inch MacBook Pro has moved to Intel's 9th generation CPUs and offers 8-core options for the first time in the product line's history. The 13-inch saw a more modest CPU specifications bump. The MacBook Pro's price points remain the same.

Just as importantly, Apple has made another update to its butterfly keyboards in the MacBook Pro. This marks the fourth generation of the butterfly keyboard that has divided users and seen some widely publicized hardware failures that resulted in an ongoing repair program from Apple. Apple claimed significant improvements to reliability in the third generation that shipped with laptops introduced in 2018, but users continued to report issues.