Summary & Key Takeaways ​

• Cleanup functions that throw errors no longer abort the entire teardown process.
• ContextNotFoundError messages are now more descriptive, guiding developers to use null for optional contexts.
• mapArray and repeat now retain successful falsy fallbacks when input remains empty.
• Dev messages for REACTIVITY_HALTED now include the owner path of the computation that threw.

Our Commentary ​

Good to see the core reactivity system getting these stability and DX bumps. The improved error messages for context are a small but mighty win; I've definitely been tripped up by undefined vs null in contexts before. And making cleanups more resilient to errors? That's just good engineering.