I guess I should have said that Alsoft states that DiskWarrior 4 version 4.4 is not compatible with OS X 10.11 or later.
From
Alsoft.
DiskWarrior 4.4 is Not Compatible with OS X 10.11 El Capitan
DiskWarrior 4 version 4.4 is not compatible with OS X 10.11 or later. To restore complete functionality and to gain additional features, please upgrade to DiskWarrior 5.
They're deliberately low-balling 'Compatible'.
I use it on my 10.12.6 drives (and earlier until I upgraded them to Sierra), with no difference in results than when using DW 5.
DW 5 is supposed to be faster, but I didn't notice any speed improvement, though to be fair, out of habit, I never paid any attention unless it took a very long time.
Recently I had an HFS+ spinner that was connected to my AEBS stop working.
DW 4 took over two hours to repair a 320G spinner, run from a 10.12.6 SSD.
As it turned out there were overlapping extents and DW saved all but 20 files.
DW 5 might have been faster, I don't know.
As to DW 5's 'additional features', I have no idea what they are, beyond the new interface and 64-bit architecture.
I've seen the list, but didn't see a gain after using it a few times, so I use 4.
The graph in 4 is preferable to me over the 'Efficiency' gauge.
In practice the graph may be no more effective or accurate than the gauge, but the latter just lacks resolution, to my liking.
So maybe I'll use 5 for awhile and see if I gain any insight.








I am that Masked Man.
All you can do, is all you can do.
There’s trouble — it's time to play the sound of my people.
Your boos mean nothing to me, I've seen what you cheer for.
Insisting on your rights without acknowledging your responsibilities isn’t freedom, it’s adolescence.
I've been to the edge of the map, and there be monsters.
We are a government of laws, not men.
Everybody counts or nobody counts.
When a good man is hurt,
all who would be called good
must suffer with him.
At the going down of the sun and in the morning
We will remember them.
You and I have memories longer than the road that stretches out ahead.
There is no safety for honest men except
by believing all possible evil of evil men.
We don’t do focus groups. They just ensure that you don’t offend anyone, and produce bland inoffensive products. —Sir Jonathan Ive
An armed society is a polite society.
And hope is a lousy defense.
You make me pull, I'll put you down.
I *love* SIGs. It's Glocks I hate.