Summary & Key Takeaways ​

• A critical hydration desync bug affecting <For> components followed by siblings has been fixed.
• The refresh(target) function now returns a promise for the target's quiescent state, allowing async operations to await reactivity settlement.
• This promise-based refresh improves control over async data flows within Solid's reactivity system.
• updateIfNecessary now correctly handles disposed nodes, preventing certain runtime errors.

Our Commentary ​

The <For> hydration fix is a big one; desyncs are notoriously hard to debug and can lead to subtle, frustrating bugs. Combining that with the new promise-based refresh for signals makes this a really solid RC. It feels like Solid is tightening up its core, making it even more robust for complex applications. We're seeing a lot of maturity in these RC releases.