Filter the languages used by Jetpack Search’s Query Parser.
jetpack_search_query_languages
jetpack_search_query_languages-
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action jetpack_search_abortFires when the Jetpack Search fails and would fallback to MySQL.
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action jetpack_reject_to_terms_of_serviceActon fired when the master user has revoked their agreement to the terms of service.
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action jetpack_agreed_to_terms_of_serviceActon fired when the master user has agreed to the terms of service.
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filter jetpack_block_editor_enable_upgrade_nudgeFilter ‘jetpack_block_editor_enable_upgrade_nudge’ with `true` to enable or `false` to disable paid feature upgrade nudges in the block editor. When this is changed to default to `true`, you should also update `modules/memberships/class-jetpack-memberships.php` See https://github.com/Automattic/jetpack/pull/13394#pullrequestreview-293063378
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filter jetpack_instant_search_optionsCustomize Instant Search Options.
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action jetpack_event_logFired when we want to log an event to the Jetpack event log.
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action jetpack_site_registered_user_tokenFires when a user token is sent along with the registration data.
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filter jetpack_register_request_bodyFilters the request body for additional property addition.
Jetpack Developer Resources 