Hi all, I’m looking to purchase a 15-inch MBP and am a little confused by the 2 options Apple is currently offering (not looking at the old model). As far as I can tell by looking at the base configurations, the only difference is the 2.8 vs 2.9 GHz, as the 2.8 GHz version can be upgraded to 512GB storage with Radeon Pro 560 to match the 2.9 GHz specs. Both models have Kaby Lake. Am I missing something? Were these released separately? Thanks!