A vulnerability was discovered where a contributor could use the Relevanssi admin search to access content in the WordPress database that they couldn’t otherwise access.

• Security: Fixes a vulnerability where a contributor-level user could make a SQL injection.
• Minor fix: Remove warnings caused by removed synced patterns.

Version 2.30.1 could cause fatal errors in rare circumstances.

• Minor fix: Fix errors from pinning queries.

The meta query security fix failed to acknowledge the wide variety of meta queries possible, causing occasional warnings and possibly even fatal errors.

• Minor fix: Remove complaints from meta_queries.
• Premium. Minor fix: Improvements in handling synonyms for multisite missing terms lists.

Versions 2.30 (Premium) and 4.27 (free) include a bunch of new features and bug fixes. The biggest bug fix is related to multisite searching, where the post weights weren’t calculated correctly before.

There’s also a small security fix related to meta queries using regular expressions, which matters when Relevanssi is used with Relevanssi Live Ajax Search.

• Premium. New feature: Relevanssi now has a speech-to-text support using the Web Speech API.
• Premium. New feature: Spam blocking now has a search query length filter that can block too long queries as spam.
• Premium. New feature: You can now enable automatic search term spelling correction from the settings.
• New feature: Setting to disable all post_type parameters to let Relevanssi control the post types in the search.
• New feature: New filter hook relevanssi_truncate_search_queries can be used to truncate search queries to a certain length to eliminate too long queries.
• New feature: New shortcode  makes it easier to add a “Did you mean” suggestion on a search results page without modifying the template code.
• New feature: New filter hook relevanssi_allow_meta_query_regexp allows REGEXP or NOT REGEXP meta queries. They are blocked by default for security reasons.
• Premium. Changed behaviour: Multisite searching is now more in line with the single site search and supports the ‘missing terms’ feature and the + and – operators.
• Premium. Major fix: The post weights weren’t calculated correctly in multisite searches.
• Premium. Minor fix: Empty post part targets caused PHP errors. Now they are ignored.
• Premium. Minor fix: Uninstalling Relevanssi Premium when the free version is active now only uninstalls Premium features.
• Premium. Minor fix: Spelling corrections work more reliably when the search query involves accents.
• Minor fix: Relevanssi now clears the scheduled actions on deactivation, not on uninstall.
• Minor fix: Much faster response for the indexed custom field list.
• Minor fix: You can now assign anonymous functions to the relevanssi_indexing_restriction filter hook.