Here are two more photos of the new Centennial Uniform.
And here is the official text describing the uniform changes:
“The uniform cap is still the great cotton twill classic, now it’s gone from green and red to forest green and is embroidered with a tonal universal emblem on the crown.
Bellows pockets with hook-and-loop closures have replaced the button-flap patch pockets. There are two pockets on the chest and a smaller one on the left sleeve.
Shoulder loops and unit numbers  have undergone a color change—shoulder loops went from red to a rich shade of forest green. Unit numbers are khaki and forest green.
Long sleeves on the shirt have inside Swiss tabs and outside loops so they will stay neatly in place when rolled up.
The uniform belt got updated, too. It’s a bit wider and a lot beefier in forest green cotton web. It has a three dimensional universal emblem on the steel gray metal buckle and a sturdy, ratchet claw closure.
The Switchback™ Pants & Canvas Convertibles are now in forest green in universal sizes with unfinished hems for a custom-length fit. Available in two great fits: Classic (traditional straight leg) and Relaxed (roomier through the seat and thigh). Both have legs that zip off above the knee.
Uniform socks in various styles with your comfort in mind. These new high performance socks feature arch support and moisture wicking capabilities.” [bold added]