Thanks for that, Joe. I'll have to look at app compatibility with Sierra but it's too early to tell. I have consulted
http://roaringapps.com but there isn't much info yet. My main concern is that MS Office 2008 works with Sierra. I can probably live without Word (although it suits my needs) because there are good substitutes, namely Nisus Writer Pro and Libre Office, but I like Entourage, probably because I'm used to it. I could get used to Mail but my wife is another story... As far as I'm concerned, Pages is unacceptable.
If Photoshop CS5 doesn't work with Sierra, I can always go to Photoshop CC. The monthly fee is annoying but I can afford it.
At any rate, I'll wait and see.
