The latest WordPress release is available. If your host automatically updates your install, you might have noticed a seamless transitition. If your host does not automatically update your WordPress versions, you might want to login in and upgrade.
From WordPress, they highlight the latest enhancements to this new upgrade:
- Images with captions no longer appear broken in the visual editor.
- Allow some sites running on old or poorly configured servers to continue to check for updates.
- Avoid fatal errors with certain plugins.
- Fix hierarchical sorting in get_pages(), exclusions in wp_list_categories(), and in_category().
- Fix a warning that may occur in certain setups while performing a search.
It’s always a good practice to stay up to date on the latest WordPress versions as most updates include the latest security enhancements to keep your blog site safe. With that said, upgrading may cause issues. If you ever have issues, the first step is to de-activate all plugins. A lot of time, plugin conflicts cause errors. If this fixes the problem, go back and re-activate plugins one at a time to determine which one may be causing the conflict.
Beyond that, you might want to contact your host directly for support.