React Daily: Compiler Improvements and View Transitions
React's compiler received two significant bug fixes addressing JSX component detection and using declarations, while experimental view transition APIs gained new parent-child animation capabilities.
Duration: PT1M59S
Episode overview
This episode is a short developer briefing from React Daily.
It explains recent repository work in plain language.
- Show: React Daily
- Published: 2026-06-05T06:00:33Z
- Audio duration: PT1M59S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's June 5th, 2026. Today we're seeing focused improvements to React's compiler reliability alongside continued expansion of experimental view transition features.
The React compiler saw two important bug fixes that address edge cases developers may have encountered. Pull request 36688 fixes an issue where JSX components starting with underscores or dollar signs were incorrectly treated as host elements rather than components. This means tags like underscore Bar or dollar Foo…
Separately, pull request 36691 addresses using declarations in the compiler's HIR system. This change bails out on using declarations, likely preventing compilation errors when encountering this newer JavaScript syntax. Both fixes target the compiler's ability to correctly parse and optimize modern React code patterns.
On the experimental front, view transitions are gaining more sophisticated animation capabilities. Pull request 36690 introduces parent enter and parent exit props for nested view transition components. This allows descendant elements to animate when an ancestor view transition boundary enters or exits the DOM. The…
These compiler fixes should reduce unexpected behavior when using…
T…
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