Default [Q]especially gsm dev ed owners:want to update to kk 4.4.2 if just to take care of...

[Q]especially gsm dev ed owners:want to update to kk 4.4.2 if just to take care of...Heartbleed but concerned about losing ability to unlock bootloader according to forums.motorola.com/posts/c8266361eb <<< so any truth??!! Or lose this ability only on the NON Dev Ed phones only??!

Equally important: any other reported issues for 4.4.2 besides possibly boot loader issue (would be going from 4.2.2)??

Thanks for everyone's help,

EDIT: ADD https for above given link to work