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There are no known issues with any specific Tomcat 8.0 release. The latest stable version should be used.
We Tomcat 8+ (including 8.5 and 9.0) are also supported but we don't have a specific page at present for Tomcat 8.5 , but so far earlier and 9.0. See also SystemRequirement for more info. Earlier versions e.g. 8.5.4 had session bugs that render the IdP unstable.
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