[Mohamed Mansour (mohamedmansour)]

Release

Bumps WebUI to 3.0.4.

Previous release tag: v3.0.3

Changes since v3.0.3

Fixes:

• Omit whole-binding attributes for missing or null server values and remove them for null or undefined client values, preserving explicit empty strings, zero, false, and mixed attributes so optional native form constraints behave correctly (fix: omit nullish whole-binding attributes fix: omit nullish whole-binding attributes #605 by Mohamed Mansour (@mohamedmansour)).
• Preserve authored static whitespace around text bindings so SSR, hydration, reactive updates, and client-created content agree, including native newline and entity semantics in whitespace-sensitive elements. Genuine state mismatches still warn; retaining authored whitespace may change initial inline spacing (fix: align SSR and client text whitespace fix: align SSR and client text whitespace #610 by Mohamed Mansour (@mohamedmansour)).

Docs:

• Clarify nullish attribute behavior in the state-management guide and AI authoring reference (fix: omit nullish whole-binding attributes fix: omit nullish whole-binding attributes #605 by Mohamed Mansour (@mohamedmansour)).
• Update rendering guidance and the hydration contract for consistent text whitespace across server and client rendering (fix: align SSR and client text whitespace fix: align SSR and client text whitespace #610 by Mohamed Mansour (@mohamedmansour)).

Maintenance:

• Adopt existing SSR nodes using a compact compiled DOM map, defer template parsing until new content is created, and deduplicate repeated binding work within dependency roots. In 20 matched Edge runs of a 120-card SSR workload, median hydration wall time fell from 6.70 to 6.10 ms, startup JavaScript CPU from 8.220 to 7.386 ms, and initial retained V8 heap from 2,151,838 to 2,127,958 bytes. These are workload-specific improvements: interaction JavaScript CPU increased on that workload, and first-use creation still pays deferred parsing cost (perf: reduce SSR hydration and repeated binding work perf: reduce SSR hydration and repeated binding work #609 by Mohamed Mansour (@mohamedmansour)).

Deployment

Rebuild protocol.bin and the browser bundle together for the compiled DOM-map hydration change; no legacy metadata fallback is provided.

Validation

• cargo xtask check

[mddinbox]

Reviewed 79d0924; all available checks passed.