With WordPress 5, the default post editor is a new piece of software called Gutenberg. It’s block-based, rather than it’s-all-just-a-bunch-of-text-based, like the earlier editor.

It’s got a number of nice features. Sadly, it doesn’t work all that well with several of the syntax highlighters I’ve been using on this site.

So I’ve gone through and updated all the code items to Syntax Highlighter Evolved, which has recently started the effort to migrate its capabilities to Gutenberg. It doesn’t yet sport all the bells and whistles that the earlier version did (e.g., it can’t yet highlight specific lines of code). But it’s good enough to get the job done.

You can read more about it here.