End game players that have completed play-through #2 will see enemies scale to the new levels up to the new level cap.
Item drops (with the exception of COM Decks) will also scale with higher level enemies to the new level cap.
This Title Update features the highest level weapons to date.
Other fixes, including DLC4Achievement/Trophy glitches that have affected some users will be corrected to properly award players for obtaining these achievements no matter which order they were completed in.
On the Xbox360, the Modded level 70 characters have been patched and reduced to level 69. But modded weapons, shields and items have not been removed.
The Mac version is based on the final 1.4.1 Windows version.
The Windows PC 1.4.1 is the only version that is network compatible with the Macintosh OS X GOTY edition.
Early media releases concerning this patch referred to it as 1.5.0, however the patch was later redesignated 1.4.1 
On the PS3 platform this Patch is still called 1.5.0
Download link on FileShack for Patch Update 1.4.1