WordPress 5.1 was released on February 21, 2019. This release adds some new features you should be aware of…here is information from WordPress.org blog:

Version 5.1 of WordPress, named “Betty” in honour of acclaimed jazz vocalist Betty Carter, is available for download or update in your WordPress dashboard.

Following WordPress 5.0 — a major release which introduced the new block editor — 5.1 focuses on polish, in particular by improving the overall performance of the editor. In addition, this release paves the way for a better, faster, and more secure WordPress with some essential tools for site administrators and developers.

Site Health

With security and speed in mind, this release introduces WordPress’s first Site Health features. WordPress will start showing notices to administrators of sites that run long-outdated versions of PHP, which is the programming language that powers WordPress.

When you install new plugins, WordPress’s Site Health features will check them against the version of PHP you’re running. If the plugin requires a version that won’t work with your site, WordPress will keep you from installing that plugin.

Editor Performance

Introduced in WordPress 5.0, the new block editor continues to improve. Most significantly, WordPress 5.1 includes solid performance improvements within the editor. The editor should feel a little quicker to start, and typing should feel smoother.

Expect more performance improvements in the next couple of releases.

There are other notes for developers…be sure to check it out here:  https://wordpress.org/news/2019/02/betty/

The site health feature will be interesting…and could cause problems for those running old themes and plugins on outdated PHP versions…look for some of the old stuff to give you some problems in the future.

Nice to see improvements to the editor…but I still do not like the new editor enough to start using it…and if you feel the same…consider the Disable Gutenberg plugin for your site in order to disable the new editor.

Scott E