Heirlooms can be upgraded to scale to Level 70 in Patch 10.1.
Blizzard added two new upgrade tokens for Heirlooms, which means you can use them throughout the whole Dragonflight leveling process. The tokens can be found on Timewalking Vendors and Heirloom Curators in Orgrimmar (Estelle at the Gates of Orgrimmar) and Krom in Ironforge.
The armor upgrade token costs 1,000 badges or 5K gold and the weapon upgrade token costs 1,200 badges or 7.5K gold.
Awakened Heirloom Armor Casing (new) – Upgrades an heirloom armor, trinket, shield or off-hand to increase in power up to level 70. Costs 1,000 Timewarped Badges or 5,000 gold.
Awakened Heirloom Scabbard (new) – Upgrades an heirloom weapon to increase in power up to level 70. Costs 1,200 Timewarped Badges or 7,500 gold.
