I just went to CCC to download the Lexington update.  I selected "Update All", and it started updating a help file.  After it finished, I noticed that it had not updated the Sonar program.   I had to click "Update" again, to actually get Sonar updated.   Just a little confusing.  
 
I would think "Update All"  would...........well.......update all...........

Agreed. Even more confusing, after doing just an Update All, the message at the bottom of the CCC window was
"Your SONAR Platinum 21.11.0.25 installation is complete!" But opening Sonar, it's at 21.10.0 Build 32.
 It's a minor thing, but potentially confusing, particularly to newcomers.
 
On the plus side, what an awesome program Sonar has become! We are reduced to complaining about minor aspects of the installer (OK, I know, there are a few other more serious bugs left, but overall, just wow!)
 
Cheers, Peter.
 

When I check the Sonar about page, I get the correct 21.11.0.25 information, after the update.  If you do not, you might want to look into that. 

That message is after just doing an Update All, which as you pointed out doesn't actually update Sonar, just the documentation (in this release). However, the CCC message told me I had updated Sonar. Confusing! When I click on Update to update Sonar, all is fine, including the About page.
 

Ok.  I understand now.  

That gets me every time. They really should make it more intuitive

Agreed.