Interesting question Donald because it made me go through the whole suite. And I think I may have a corrupted update.
The reason that I believe there has been an update is that the Control Panel Software delete listing shows a download date of 17/07/2015 and I now seem to have two Analogue Efex listings. What is now listed by CS 6 is the following but I cannot compare it with what might have been there before. (It would be interesting to see how the listed versions compare with yours):
Analogue Efex Pro
Analogue Efex Pro 2
Colour Efex Pro 4
Define 2
HDR Efex Pro 2
Sharpener Pro 3
1) RAW Pre Sharpener.
Sharpener Pro 3
2) Output Sharpener
Silver Efex Pro 2
Vivesa 2
Why I think that I have a corrupted download is the fact that only four of them respond as trial versions. The rest just crash or freeze.
I think I might delete and re install.
P.S. Ignore the smiley. It's just the colon/bracket combination being interpreted by the forum software.