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Deprecated Configuration Options

This document lists configuration options that have been deprecated or removed from React on Rails.

For current configuration options, see Configuration.

Removed Options​

immediate_hydration​

Status: ⚠️ REMOVED in v16.6.0

This configuration option has been removed. React on Rails Pro now performs early hydration automatically for streamed components; there is no per-component toggle. Non-Pro users are not affected.

Migration: Remove any config.immediate_hydration lines from your configuration and any immediate_hydration: keys passed to react_component / stream_react_component — both are no-ops and can be safely deleted.

See CHANGELOG.md for details.

Deprecated Options​

defer_generated_component_packs​

Type: Boolean Default: false Status: ⚠️ DEPRECATED

Renamed to: generated_component_packs_loading_strategy = :defer

Migration:

# Old (deprecated):
config.defer_generated_component_packs = true

# New:
config.generated_component_packs_loading_strategy = :defer

See CHANGELOG.md for more details.

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