SolidJS 2.x API Changes And Best Practices

Use this skill for Solid 2.x beta or next work. Treat the current beta migration guide and RFCs as the source of truth, and be explicit that some APIs or package boundaries may still shift before final stable release.

Goals

• Help the user write correct Solid 2.x code, not just mechanically renamed 1.x code.
• Explain changed semantics, especially where old 1.x intuitions are now wrong.
• Surface likely ecosystem lag or package-version caveats instead of pretending everything is already settled.

First step

Determine whether the user wants:

• fresh 2.x code
• explanation of a 2.x API or warning
• review of existing 2.x code
• comparison between 1.x and 2.x behavior