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docs(migration): Document the @sentry/core entrypoint split #23990

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andreiborza merged 3 commits into from
Sep 3, 2026
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docs(migration): Document the @sentry/core entrypoint split #23990

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docs(migration): Document the `@sentry/core` entrypoint split
andreiborza Sep 3, 2026
dc240f4
Drop the redundant split-import example
andreiborza Sep 3, 2026
df50276
Drop the moved-symbol lists
andreiborza Sep 3, 2026
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12 changes: 12 additions & 0 deletions MIGRATION.md
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Expand Up @@ -1243,6 +1243,18 @@ Affected SDKs: `@sentry/react-router`.

### `@sentry/core` / All SDKs

- `@sentry/core` now exports only isomorphic code. Browser-only exports live on `@sentry/core/browser` and server-only exports on `@sentry/core/server`, and neither subpath re-exports the shared surface any more. This keeps server-only code (HTTP instrumentation, ANR, postgres and sql helpers) out of browser bundles. Most of these APIs are also re-exported by the platform SDKs (`@sentry/node`, `@sentry/browser`, ...), which is unchanged, so this only affects code importing straight from `@sentry/core`. TypeScript reports it as `has no exported member`.

```js
// before
import { loadModule, trpcMiddleware } from '@sentry/core';
import type { BrowserClientReplayOptions } from '@sentry/core';

// after
import { loadModule, trpcMiddleware } from '@sentry/core/server';
import type { BrowserClientReplayOptions } from '@sentry/core/browser';
```

- The internal, deprecated `addAutoIpAddressToUser` export was removed.
- `Scope.clear()` was removed. To reset scope state, re-initialize the SDK or run your code in a fresh scope via `withScope`/`withIsolationScope`.
- The deprecated positional `spanOrigin` argument of `instrumentFetchRequest` was removed. Pass an options object (e.g. `{ spanOrigin }`) as the last argument instead.
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