Cupertino based tech giant, Apple, revealed a standard update for its desktop operating system, macOS Sierra on Tuesday. While the update may seem normal for Mac users, the hawkeyed observers had a revelation to make. It appears that the new OS included hidden images that made the big leak about new MacBook pro sporting TouchID and touch bar sensors above keyboard panel.

The said images were reported by MacRumors that show a thin black strip over the keyboard that could be the OLED panel and the TouchID that has been speculated for the upcoming MacBook Pro 2016, for quite some time. The OLED panel will be dynamic and change the information on its screen depending on what the user is doing with the OS at that time. In one such image, the screen reveals the panel with information about Apple Pay.

OLED touchbar, called as Magic toolbar, will be Apple's newest offering to their popular MacBook variants. On this bar, users will also be able to find the TouchID sensor. With this feature, the company will be able to add Apple Pay to its MacBook and eliminate the use of passcode.

With the image's accidental reveal, the secrecy surrounding MacBook Pro, the one that Apple has maintained and fed all year long, is gone with one single mistake.

Much has been said and written about Apple's big unveiling of their MacBook line-up and the features, such as TouchID and Touchbar, that were only speculated and not confirmed. When Apple announced a press event last Thursday, the rumors reached an all new level.

Now that the Touchbar and TouchID are pretty much confirmed, no other change has been reported or revealed for the upcoming MacBook Pro. The design is expected to remain similar, with an exception of lighter and sleeker variant.

Apple event is scheduled for Thursday at 1 p.m. ET.