So I came across this post for example, just now: Upcoming Header Changes - Preparing Themes and Plugins - so they refactored everything from legacy widgets to Glimmer components? But, this tutorial is all legacy widgets. What are Glimmer components exactly and are there any guides? I feel lucky I caught this early on, before I started developing with legacy widgets. Maybe add a note in this guide that widgets are legacy and shouldn’t be used anymore?
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