Hi Lars Although, that doesn't really answer of whether 6.6.1 is the most stable one or not, but there has been a recent security fix, so definitely go to 6.6.1 .
Copied the detail below:- CVE-2017-9803: Security vulnerability in kerberos delegation token functionality Severity: Important Vendor: The Apache Software Foundation Versions Affected: Apache Solr 6.2.0 to 6.6.0 Description: Solr's Kerberos plugin can be configured to use delegation tokens, which allows an application to reuse the authentication of an end-user or another application. There are two issues with this functionality (when using SecurityAwareZkACLProvider type of ACL provider e.g. SaslZkACLProvider), Firstly, access to the security configuration can be leaked to users other than the solr super user. Secondly, malicious users can exploit this leaked configuration for privilege escalation to further expose/modify private data and/or disrupt operations in the Solr cluster. The vulnerability is fixed from Solr 6.6.1 onwards. Mitigation: 6.x users should upgrade to 6.6.1 Credit: This issue was discovered by Hrishikesh Gadre of Cloudera Inc. References: https://issues.apache.org/jira/browse/SOLR-11184 https://wiki.apache.org/solr/SolrSecurity On Thu, Sep 28, 2017 at 6:24 AM, Lars Karlsson < lars.karlsson.st...@gmail.com> wrote: > Hi, wanted to check if anyone can help guide with most stable version > between > > 6.3 and 6.6.1 > > Which should I choose ? > > And, are there any performance tests that one can look at for each release? > > Regards > Lars >
