https://www.pcgamer.com/the-latest-anthem-patchs-nerfs-were-apparently-bugs/

Anthem's 1.03 update, as well as removing a bug that made the game a lot more fun, also introduced some changes that weren't detailed in the patch notes. Players noticed a few additions that had gone unmentioned, like new components that can give Javelins an edge and several nerfs.  

It was a mistake, says BioWare, and a list with the missing items has been published. The official patch notes still haven't been updated, though.