Upgraded the site to Wordpress 5.1. Now the normal testing of post and comments to confirm everything is working Please let me know in the comments if you experience any issues from the upgrade. Thanks!
Here’s the official word about the latest version. https://wordpress.org/news/2019/02/betty/
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 WordPress will start showing notices to administrators of sites that run long-outdated versions of PHP, which is the programming language that powers WordPress.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.
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.