This release fixes numerous bugs including a XSS vulnerability reported by @strukt93.
In addtion, this is the first release that includes a refactoring of the core event processing pipeline which includes the following features:
- PHP 5.3 is now a requirement.
- All event properties are now filterable.
- Events processing can be hooked in several places in order to operate on the event before/during/after processing
- When events are queued, OWA does does the absolute minimum to new events before writing them to the incoming_tracking_events queue.