Upgrade
Definition 1 of 4

Not just physical
Upgrade can apply to skills or abilities, not just objects.

I'm taking an advanced course to upgrade my programming skills.
Continuous process
Upgrade implies ongoing improvement, not a one-time change.

She continuously upgrades her culinary talents with new recipes.
Compare with
advanceameliorateelevateenhanceimprovemodernizerefinerenovaterevampupdate
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