[tannerlinsley]

Dense SVG updates rebuild sibling identity maps even when every child keeps the same position. This adds a guarded same-order path for non-animated, element-only siblings with unique keys. Reorders, duplicate keys, text and animation retain the existing fallback.

The isolated 1.5.0 React fixture with 10,000 circles measured 7.0-10.8% lower synchronous update time over four reversed-order rounds, with identical final output. This excludes paint and is not a competitor comparison. Repeated lifecycle memory and animation differential controls passed. Current-repository performance refresh remains before landing.

Validation on b236dae:

• 59 reconciliation and React tests pass, TypeScript passes, diff checks pass.
• Baseline bundle policy passes. Candidate fails the exact locked sizes and seven absolute ceilings below. No budgets were changed.
• Security review: internal traversal only, no dependencies, execution hooks, public API or trust-boundary changes.

Owner decision needed before landing: approve these exact size increases for the measured benefit, decline, or defer. Recommendation: approve the bounded exception, subject to remaining compatibility, current-source performance and normal CI/review gates.

Locked bundle	Minified before -> after (bytes)	Gzip before -> after (bytes)
DOM host	83289 -> 83673	29241 -> 29364
React adapter	85614 -> 85998	30180 -> 30293
React line	109273 -> 109657	39541 -> 39657
React compact line	91771 -> 92155	32435 -> 32558

Absolute gzip ceiling	Existing limit (bytes)	Candidate (bytes)
React line + Canvas	46846	46959
React compact line	32437	32558
Motion SVG	23301	23410
Stats	59140	59246
Direct D3 quadtree + DOM	40941	41051
Direct D3 Delaunay + DOM	46330	46439
React Stats	60236	60348

Approval would authorize updating only these exact locked rows and ceilings after remaining gates pass. It would not waive CI, review, correctness, performance or other budgets. This is a draft awaiting that decision, not a shipping-ready claim.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 394594d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 12 packages

Name	Type
@tanstack/charts	Patch
@tanstack/alpine-charts	Patch
@tanstack/angular-charts	Patch
@tanstack/lit-charts	Patch
@tanstack/octane-charts	Patch
@tanstack/preact-charts	Patch
@tanstack/react-charts	Patch
@tanstack/react-native-charts	Patch
@tanstack/solid-charts	Patch
@tanstack/svelte-charts	Patch
@tanstack/vue-charts	Patch
@tanstack/charts-scales	Patch

Not sure what this means? Click here to learn what changesets are.

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☁️ Nx Cloud last updated this comment at 2026-11-13 16:13:26 UTC