List of fixes
I use CC2018 behind a firewall, and don't have access to "Check for updates" menu option. Adobe used to post a list of fixes that were in a new version or patch (for most Adobe apps).
I cannot find such a list anywhere, but I need to know what patches are available, and what is fixed, so I can request updates from IT department as appropriate.
You can view what's new in Illustrator here: