What does it mean that version your schemas explicitly?

Label your schema versions so you can compare current thinking to past thinking.

Example: You believed 'hiring for culture fit is essential' in 2023. By late 2024, after three bad hires who fit culturally but lacked critical skills, your belief shifted to 'hire for capability, then cultivate culture.' Without version labels, you cannot see the trajectory: v1.0 was naive, v1.1 added nuance, v2.0 was a full rewrite. With them, you have a changelog of your own cognition.

Try this: Pick one belief you hold strongly right now — about leadership, learning, relationships, or your craft. Write it down as v1.0 with today's date. Then recall what you believed about the same topic two years ago. Write that as v0.x. Note what changed and why. You now have two explicit versions of the same schema, and the gap between them is where your growth lives.