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Delete enableFabricRenderer() from ReactNativeNewArchitectureFeatureFlags (#56860)#56860

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mdvacca:export-D105231777
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Delete enableFabricRenderer() from ReactNativeNewArchitectureFeatureFlags (#56860)#56860
mdvacca wants to merge 6 commits into
facebook:mainfrom
mdvacca:export-D105231777

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@mdvacca mdvacca commented May 15, 2026

Summary:

The enableFabricRenderer() flag is being removed entirely; it was always set to true in the canary release stage. All callers of ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer() were inlined in earlier diffs.

This diff:

  • Removes the wrapper method ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer().
  • Removes the override fun enableFabricRenderer(): Boolean = true from ReactNativeNewArchitectureFeatureFlagsDefaults.

Both classes are non-generated, so they are edited directly. The next diff will remove the underlying ReactNativeFeatureFlags.enableFabricRenderer() API by regenerating the codegen output.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105231777

@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label May 15, 2026
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meta-codesync Bot commented May 15, 2026

@mdvacca has exported this pull request. If you are a Meta employee, you can view the originating Diff in D105231777.

mdvacca added 6 commits May 15, 2026 11:15
…int (facebook#56854)

Summary:

The `enableFabricRenderer()` flag is being deleted; it always returns true on the canary release stage. In `loadWithFeatureFlags`, replace both `featureFlags.enableFabricRenderer()` reads with the literal `true` for `privateFabricEnabled` and `privateConcurrentReactEnabled`.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105229919
…k#56855)

Summary:

The `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()` flag is being deleted; it always returns true on the canary release stage. In `createRootView`, inline `setIsFabric(true)` and remove the now-unused import.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105230246
…56856)

Summary:

The `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()` flag is being deleted; it always returns true on the canary release stage. The DEBUG-only `assertCondition(enableFabricRenderer(), ...)` check in `getOrCreateStartTask` becomes tautological — delete it.

The other DEBUG assertions in the same block (`enableBridgelessArchitecture`, `useTurboModules`) are unaffected.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105230489
Summary:

The `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()` flag is being deleted; it always returns true on the canary release stage. The default body of `ReactActivityDelegate.isFabricEnabled()` reads the flag — change it to `return true` directly.

The method itself is preserved because it is a polymorphic `protected` hook that subclasses (e.g., `DefaultReactActivityDelegate`) override to provide per-activity behavior.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105230961
)

Summary:

The `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()` flag is being deleted; it always returns true on the canary release stage. The default initializer of `ReactDelegate.isFabricEnabled` reads the flag — change it to `true` directly.

The field itself is preserved because it can be set by the deprecated `(activity, reactNativeHost, appKey, launchOptions, fabricEnabled)` constructor that lets callers override the default.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105231216
…lags (facebook#56860)

Summary:

The `enableFabricRenderer()` flag is being removed entirely; it was always set to true in the canary release stage. All callers of `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()` were inlined in earlier diffs.

This diff:
- Removes the wrapper method `ReactNativeNewArchitectureFeatureFlags.enableFabricRenderer()`.
- Removes the `override fun enableFabricRenderer(): Boolean = true` from `ReactNativeNewArchitectureFeatureFlagsDefaults`.

Both classes are non-`generated`, so they are edited directly. The next diff will remove the underlying `ReactNativeFeatureFlags.enableFabricRenderer()` API by regenerating the codegen output.

Behavior is unchanged.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D105231777
@meta-codesync meta-codesync Bot changed the title Delete enableFabricRenderer() from ReactNativeNewArchitectureFeatureFlags Delete enableFabricRenderer() from ReactNativeNewArchitectureFeatureFlags (#56860) May 15, 2026
@mdvacca mdvacca force-pushed the export-D105231777 branch from 7d4bf0d to 7f6cdee Compare May 15, 2026 18:16
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