* Fix - Fix PHP notice "Trying to get property of non-object" when checking category depth, thanks Simon! [93709]
* Compatibility - Minimum supported version of WordPress in now 4.5
- Fix – Fixed some layout issues with the “Show Filters”/”Collapse Filters” toggle button in mobile views (props to @ergosom for reporting this!)
- Tweak — Improved performance by swapping out LEFT JOINs for INNER JOINs in SQL queries