The CAS test environment (cas-test.its.hawaii.edu) has been updated.
As always, we encourage you to test your applications against the updated environment.
- Tomcat has been updated from 8.0.50 to 8.5.31
This is a somewhat significant update for the Java Servlet Container that the CAS application runs in. The Tomcat 8.0.x track is scheduled for EOL 2018-06-30.
This version supports TLSv1.1 and TLSv1.2. Notably, TLSv1.0 was previously supported, but is not in this update.
Some 
Some testers who've encountered handshake protocol issues have resolved the problem with the following in their Tomcat launch/configuration:-Dhttps.protocols=TLSv1,TLSv1.2,TLSv1.1
Consider deprecating TLSv1 in your configuration if possible though
The following ciphers are supported as determined by SSL Labs' SSL server test:
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