Summary & Key Takeaways ​

• sourceNames now includes a locations kind, providing file:line:col for diagnostics.
• transform() gains a root option to specify the base directory for source locations.
• createComponent and binding labels now carry source location information for better debugging.
• Server components have removed binding slots, with client components in slots replacing them for client-side behavior.
• Related types, entries, position markers, and the serverComponents compiler option effect have been removed.

Our Commentary ​

The SolidJS compiler RC brings some solid DX improvements with source location reporting. Pinpointing exactly where an issue originates in compiled code is always a win. The removal of binding slots in server components is a more substantial architectural shift. It feels like a simplification, pushing towards a clearer separation of client and server concerns. I'm curious to see how this impacts existing server component patterns.