I'm not sure if this has been detailed anywhere on GCA?
The changes are much the same as those completed and proposed for The Old Course. I haven't seen them but from various aerials, descriptions etc, I think this is about right:
I'm ignoring the new back tees.
1st:
- New driving bunker added left fairway at about 300.
- Depression added front left of the green
- The green looks a bit longer now. Has it had a small section added at the back?
2nd
- Three v old greenside bunkers filled in. One added closer to the front right corner. Another added midway up the green on the right.
- It looks like the back left corner of the green may have been extended.
3rd
- Right greenside bunkers have supposedly been taken closer to the green but from aerials this doesn't look right. The shapes have been changed though to simpler circles
-More hollows added (3) back right of the green
4th
-Colt cross bunker filled in. Blah! Don't they remember the pros struggling to carry it in the gale of the final round in 2002?
5th
- Other than the tee I can't see any change here.
6th
- Even more humps and hollows added short and left of the green
- Front right greenside bunker brought closer in. This is sort of a restoration because the old bunker was originally much bigger.
- Green extended quite a lot at the back. This is sort of a restoration but I don't think the green ever went quite that far back.
7th
- Other than tee I can't see any change.
8th
- I can't believe they filled in two ancient bunkers in the crook. The whole charm of the hole is the minefield of traps there.
- Added bunker on right side of green.
- Humps and hollows added short left?
9th
This is basically the same as the bunker changes at The Old Course 2nd
- Two ancient bunkers (back to year dot at Muirfield) filled in and "relocated" closer to the green.
10th
- Fairway slightly reshaped out to the left (not quite as straight a hole now).
- Two old fairway right bunkers filled in and replaced by three circular pots, the old bunkers were lozenge shaped. Two of the new pots look to be in similar position as the old bunkers, or possibly slightly to the left. One of the bunkers is farther out.
- Green looks extended at front right.
11th
-New bunker on the right side at 320 (is this a restoration of an old bunker?)
-Left bunker has actually been brought closer to tee at 270
12th
- Right greenside bunker brought closer into corner of green
- Colt bunker filled in short and left. Replaced with a another Hawtree hollow. Why?
13th
-Tee only change.
14th
- Front right greenside bunker enlarged to eat into green more. Or possibly bunker moved slightly.
- Hawtree hollows added to left of green?
15th
- Greenside left bunker relocated closer to green. Can't see any other changes.
16th
-Can't see any changes.
17th
-Other than tee, no change.
18th
-Island bunker had sand area widened.
Other than the length changes, I don't think any of the above will make a jot of difference in how the pros score.