Relevanssi

The plugin replaces the default WP partial-match search tool with a results by relevance utility, which also indexes comments and shortcode content.

Installation:

Unpack and upload it to the /wp-content/plugins/ directory.
Activate the plugin through the 'Plugins' menu in WordPress.

What is new in this release:

• New filter: relevanssi_valid_admin_status can be used to adjust post statuses that Relevanssi will handle.
• If Relevanssi creates an empty excerpt for a post and there's a user-set excerpt for the post, that excerpt is used.
• No ellipsis is added to the post excerpt, if the post excerpt shows the whole post.
• The relevanssi_post_title_before_tokenize filter now has a second parameter that contains the post object.
• New filter: relevanssi_display_common_words can be used to disable the "25 most common words" listing on the settings page, if it's too heavy to load.
• Relevanssi was sanitizing taxonomy titles too aggressively. That is now toned down a bit.
• Relevanssi now supports post_parent, post_parent__in and post_parent__not_in, though you have to set them in relevanssi_modify_wp_query filter for them to work.
• Meta query support should now be perfect; there were some limitations with complicated meta queries before.

What is new in version 3.4.1:

• New filter: relevanssi_valid_admin_status can be used to adjust post statuses that Relevanssi will handle.
• If Relevanssi creates an empty excerpt for a post and there's a user-set excerpt for the post, that excerpt is used.
• No ellipsis is added to the post excerpt, if the post excerpt shows the whole post.
• The relevanssi_post_title_before_tokenize filter now has a second parameter that contains the post object.
• New filter: relevanssi_display_common_words can be used to disable the "25 most common words" listing on the settings page, if it's too heavy to load.
• Relevanssi was sanitizing taxonomy titles too aggressively. That is now toned down a bit.
• Relevanssi now supports post_parent, post_parent__in and post_parent__not_in, though you have to set them in relevanssi_modify_wp_query filter for them to work.
• Meta query support should now be perfect; there were some limitations with complicated meta queries before.

What is new in version 3.3.8:

• Couple of bug fixes.

What is new in version 3.1.5:

• OR fallback didn't actually fall back to OR, but instead got stuck in an endless loop of AND searches.
• Meta queries didn't work without a key; now they work with just meta_value or meta_value_num.
• Meta queries had problems with meta_value being set to null.
• Relevanssi now supports category__and. By default this sets include_children to false.
• When querying by slug, the term taxonomy is also taken into consideration, fixing problems when same slug appears in different taxonomies.
• Author search didn't work.
• Fixed an error message caused by all-number synonyms starting with zero, like 02.
• Synonyms are now case-insensitive.
• New filter: relevanssi_default_tax_query_relation can be used to change the default tax query relation from OR to AND.

What is new in version 3.1.4:

• Relevanssi now adds spaces between tags when creating excerpts to make neater excerpts from tables and other similar situations.
• Relevanssi now indexes unattached attachments, if you choose to index attachments.
• Fixed the problems with Twenty Ten and Twenty Eleven themes better.
• $match->tag now contains the number of tag hits.
• Relevanssi now adds relevance score to posts before passing them to relevanssi_hits_filter. You can find it in $post->relevance_score.
• Tags in breakdowns always showed 0, even though tags were indexed and searched correctly. That's now fixed.

What is new in version 3.0.5:

• Fixed a major bug that caused the searches to fail when "Limit searches" was enabled, but "Limit" was not defined.
• Modified relevanssi_remove_punct() to replace curly apostrophes and quotes with spaces instead of removing them, to make the index more consistent (regular apostrophes were replaced with spaces). Reindexing the database is a good idea.
• Fixed some misleading text on the options page.

What is new in version 3.0.4:

• Fixed another problem with the Jetpack Contact Form.
• Fixed an error message caused by searching for numbers.
• Phrases are now also recognized in drafts and attachments.
• Can now set post_types to 'any'.

What is new in version 3.0.3:

• Fixed a bug that made custom taxonomy term searches fail.
• New filter: relevanssi_user_searches_capability lets you modify the minimum capability required to see the User searches page.

What is new in version 3.0.2:

• Fixed the "Cannot use a scalar value as an array" bug in indexing.
• Role-Scoper users: in order to make Relevanssi work with Role-Scoper, replace the Relevanssi helper file in Role-Scoper with this file.
• Removed an error message about set_time_limit() under safe_mode.
• Jetpack Contact Form shortcode caused problems when indexing. Relevanssi will now simply remove the shortcode before indexing.
• Fixed errors caused by / characters in highlighting.

What is new in version 3.0.1:

• Fixed lots of problems in logging searches.
• Added an alert when user hasn't selected any post types to index (and default values).
• Custom field setting 'visible' works now.
• Searching by category title works now, and you can adjust the category weight in the settings.

What is new in version 2.9.14:

• Relevanssi will now index pending and future posts. These posts are only shown in the admin search.

Requirements:

• WordPress 2.5 or higher