For example, issue CRM-17493 shows that it is fixed in 4.6.11.
How do I find the patch to fix this specific issue from JIRA?
CiviCRM Stack Exchange is a question and answer site for administrators and users of the CiviCRM Constituent Relationship Management software. It only takes a minute to sign up.Sign up to join this community
That patch is due to be released in CiviCRM 4.6.11 but it hasn't been released yet. 4.6.10 is the latest version of CiviCRM.
You can download the latest version from here: Download CiviCRM
How to apply a patch: How do I apply a patch supplied in the issue queue via Git?
This is a little tangential, but there are several options for checking an unreleased patch: