Just wondering if the SMPDiag tool works on 7.5 or if a new tool will be released for 7.5? 
I absolutely love it, it's helped in a bunch of situations, and I'm hoping that it stays around!

As per articles It's working on SMP 7.1 SP2 + Environment.

You can try

SMPdiag (version 0.1.944)

SMPDiag will be updated for 7.5 support soon.  They mentioned at the 7.5 Summit that it will be released soon.

For right now I would not run the older version as there are substantial changes to the platform, many of the tuning advice is baked in, and a lot of it is simply different from 7.1 and the version linked above could recommend changes that are no longer appropriate.

They have updated the version contained in that link but the article does not specifically mention 7.5 support.  To be sure it might be worth opening an incident with Support to verify before you damage your implementation.

The SMPDiag is fully compatible with 7.5.  A dozen tests are actually specific to the 7.5 product.  Thanks for the post.