REX have released their latest beta update of the Essentials/Overdrive! The Service Pack 4, released about today morning, includes P3D v3 compatibility, and a series of bug fixes. The list of fixes along with improved compatibility is as follows –

FIXED – Texture Lightning Tab
FIXED – PFPX download export file
FIXED – Visibility Smoothing – added new code.
FIXED – Wind Smoothing – added new code.
FIXED – Improved weather WX PLUS mode code so weather doesn’t clear and continues through updates.
FIXED – Improved weather STANDARD mode code so that weather doesn’t clear and continues through updates.

As a note, this update is a public open beta, so the REX Essentials/Overdrive SP3 is required to be installed, for the new update to work. The update is available for instant download from the REX Forums.