This beta has been out for a month now...
http://beta.focusrite.com/
 
If you install it please remember to remove the Windows legacy firewire driver if you are running it (no longer recommended by Focusrite). You also need to reboot even though it does not prompt for it (in my case it did not install the driver correctly until it was done). You may wish to consider saving your settings, clearing your settings, doing a hardware reset and reloading your settings, then save to hardware....  to clear out any...... gunk....
 
Try as hard as I may, I find it impossible to get Everett to drop out with the Mix Control Firewire latency set to short and ASIO set to 64 with a PRO 40.
 
Please let me know how you get on and what you find stable.
Remember this is a beta.
 
Thanks,.
 
p.s.
 
Just wrote to Focusrite asking them about their Windows 10 plans and testing.

If anybody tries this could they confirm that their firmware is still on 2761 in Help-About? (Pro40).
 
Thanks..

The update worked fine for me (Pro14), I also took the Scarlett Solo beta update and applied that to my laptop.
Both seem to work fine.
 
The Pro14 firmware is as follows:
 

 
I have Firewire latency set to Medium and latency set to 512. I've had it like this for a long time and never tried to change it.
Earlier drivers didn't like the Short latency setting and I never bothered to go back and re-test this.
 

Thanks Arachnaut, identical for me apart from HardwareID and the Pro version understandably.
So just drivers and no firmware update this time...
Cheers!

I just edited my previous post to add a comment about latency as you just posted.
 

Any information on what's changed? Does it appear you're able to achieve lower latency without dropouts? I just need a reason to replace what ain't broke. 

bitflipper
Any information on what's changed? Does it appear you're able to achieve lower latency without dropouts? I just need a reason to replace what ain't broke. 

 
The main thing I noted was:

- Stability fixes for all Saffire models

bitflipper
Any information on what's changed? Does it appear you're able to achieve lower latency without dropouts? I just need a reason to replace what ain't broke. 

I am in the "not broke" boat, and Focusrite is very upfront about this being beta. I have enough dynamic variables on my plate already.

bitflipper
Any information on what's changed? Does it appear you're able to achieve lower latency without dropouts? I just need a reason to replace what ain't broke. 

 
Yes... it definitely appears.... 
I'm running lower latency now. 
 

arachnaut
The main thing I noted was:

- Stability fixes for all Saffire models

 
For me less clicks and pops, well that's my perception. And no more dropouts every now and then (well not yet anyway)... I'm testing as Focusrite requires, that is without firewire legacy drivers, and in my case the VIA drivers supplied with Windows...
 
Then again you could blame Everett for this improvement as well....  
I will be rolling back to Dorchester soon however for reasons off topic.
 
Ta.

"stability fixes" sounds good, but could they be any more vague?
 
I've only been running this Focusrite interface since January, but to date it's never burped once.
 
Its MOTU predecessor, OTOH, regularly took unauthorized breaks from duty and had to be rebooted.