You can now set the "Actual Results" on when executing Test Step ResultsSteps. This field also supports the Jira wiki markup notation. You can also reference attachments/images from the evidence available on the Test Run using the markup notation.
Filtering within a Test Plan issue has just been made easier. It is now possible to include any issue field (native or custom fields) to filter Tests within a Test Plan issue. JQL searches are also possible as of now.
Of course, the filter values are also saved in user preferences so that users do not lose context when navigating between issues and reports.