1.14 is a major release and includes lots of bugfixes and some new features. Here’s the full list of features:

• Tokenizer was using strlen() and not mb_strlen(), so word lengths were not calculated properly. If your site uses non-ASCII alphabet, rebuilding the index is a good idea.
• Printing out titles for taxonomy terms didn’t work properly. relevanssi_the_title() works for that and if you don’t want to echo the title, you can use it like relevanssi_the_title(false) to make it return the title.
• Small improvement to WPML multilanguage filtering.
• relevanssi_user_add_data only worked when indexing all users.
• “Undefined index” errors in multisite search were eliminated.
• The shortcode now supports shortcodes inside it.
• When posts transitioned from “future” to “published” there were some issues with disappearing Relevanssi settings. That’s fixed now.
• The [watupro] shortcode didn’t work with Relevanssi, so Relevanssi will now bypass it.
• Relevanssi had the_title filter hook calls that were missing the second parameter; that’s now fixed.
• The excerpt-building algorithm is completely rewritten based on work by Ben Boyter.
• The plugin i18n features have been improved slightly.
• New filter: relevanssi_didyoumean_suggestion lets you modify the Did you mean? suggestion before it’s displayed.
• relevanssi_didyoumean() has a new parameter: you can now choose whether the result is echoed out (the default value) or just returned.
• Multisite search had some problems with some Relevanssi variables not changing when the blog was switched. This is now improved, thanks to Teemu Muikku.
• In the search results breakdown, you can now use %categories% and %taxonomies% to show the number of matches in categories and taxonomies other than tags and cats, respectively.
• Search results breakdowns now work for taxonomy terms and user profiles.
• Relevanssi supports fields parameter (both ids and id=>parent) to return only post IDs or post IDs and post parents.

The update is highly recommended for all Relevanssi Premium users.