CS6 and earlier programs have not been tested and will not be updated for Mac El Capitan or later operating systems
-which means that you try to use CS6 and earlier at YOUR risk of having problems due to Apple updates
-Apple did not maintain backward compatibility with old programs in El Capitan or Sierra
--Adobe has a workaround to Apple's problem of not maintaining backward compatibility
--READ HERE https://forums.adobe.com/thread/2301916 for an Adobe solution to installing old programs, including a link to installing the old Java runtime that is required
Owners of old programs simply have problems with Mac El Capitan/Sierra... none of which is Adobe's fault... Adobe did not change your old program to make it stop working... Apple changed their operating system and THAT is why your old programs won't work, not because of anything Adobe did... Also... every time Apple issues an update, there is the risk that an old program that HAS been working will STOP working... bottom line, old programs require a matching old operating system
And FYI... Microsoft did the same thing, and all under their own control... The perfectly good MS Office 97 I owned stopped working (would not even install) when I moved from a WinXP computer to a Win7 computer... Microsoft had TOTAL control over their own products (unlike here, where Adobe has NO control over Apple's operating system) and I was forced to buy MS Office again to be able to use it... So if you want to blame someone for your program not working, contact Apple