The Gear Upgrade System is receiving quality-of-life changes in Patch 10.2. Among these changes are increases to Hero and Myth track, weekly cap reduced from 10 to 6 upgrades, removal of fragments, and all parts of the system are now currencies, among other changes.
Hero upgrade track increased to 6 (was 5).
Myth upgrade track increased to 4 (was 3).
Crests are now a currency and will no longer take up inventory space.
Fragments have been removed.