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JPeer264 merged 1 commit into from
Sep 21, 2026
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docs: Update MIGRATION.md #24550

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2 changes: 1 addition & 1 deletion MIGRATION.md
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Expand Up @@ -872,7 +872,7 @@ Attribute availability remains runtime-dependent. For example, browser and Worke

Span attributes now use the shared `@sentry/conventions` package under the hood.
The deprecated `semanticAttributes` re-export was removed. Import span attribute constants from `@sentry/core` directly.
`SEMANTIC_ATTRIBUTE_SENTRY_SOURCE` (`sentry.source`) was removed. Use the `sentry.segment.name.source` attribute instead. The SDK does not export a constant for it, import `SENTRY_SEGMENT_NAME_SOURCE` from `@sentry/conventions/attributes` or use the string.
`SEMANTIC_ATTRIBUTE_SENTRY_SOURCE` (`sentry.source`) was removed. Use the `sentry.segment.name.source` attribute instead and make sure to only set it on segment/root spans.
`sentry.segment.name.source` is only set on the root span. Setting it on a child span is a no-op: `setAttribute` ignores it, and a value passed in a child span's initial attributes is dropped when the span is linked to its parent.

### Span operation (`op`) changes
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