Various rumor sources, including an Apple Store in China that accidentally hung a MacBook Pro display banner prematurely, indicate that Apple will be releasing updated MacBook Pros on Tuesday July 29, 2014. If true, the updates are likely to be minor speed bumps, using the recently announced Haswell processor updates that we reported on last Tuesday.

The rumored update appears to be confined to 15-inch MacBook Pro with Retina Display models, but that limitation could be based on the fact that the Apple Store in China hung only one banner before the manager noticed the mix-up.

The 15-inch MacBook Pro would expand from two to three models, all of which would have 16 GB of RAM installed as part of their base configuration.

In addition, the Haswell processor refresh would bump current processor speeds by 200 MHz, giving us three MacBook Pro models with speeds of 2.2 GHz, 2.5 GHz, and 2.8 GHz.

The graphics are expected to remain the same, with the least expensive model's graphics driven by the built-in Intel Iris Pro, and the two higher end models having both the Iris Pro and the NVIDIA GeForce GT 750M.

Storage will start at a 256 GB SSD in the base model and increase from there, with a 1 TB SSD offered as an option.

If the 13-inch MacBook Pros also receive an update, you can expect the same 200 MHz processor speed upgrade for the dual core i5, and the same 16 GB memory configuration.

If this rumored MacBook Pro update comes to fruition at the current price points, then the doubling of RAM to 16 GB and the slightly faster processors should produce a nice, although minor, update to the MacBook Pro family.

I don't consider this update enough of a reason to purchase one of the new models if you're currently using a recent vintage MacBook Pro, but they're certainly a good step up for those of us with older Mac portables with non-Retina displays and slower graphics.