WordPress 5.0.3

5.0.3 is a maintenance release that includes 36 bug fixes and 7 performance updates. The focus of this release was fine-tuning the new block editor, and fixing any major bugs or regressions.

Here are a few of the highlights:

• 15 block editor related bug fixes and improvements have been added to bundled themes. Make sure to update these for an improved block editing experience.
• 2 block editor related internationalization (I18N) bugs have been fixed
• Users with JavaScript disabled now see a notice when attempting to use the block editor.
• A few PHP errors in the Customizer have been fixed.
• Some issues uploading common file types, like CSVs, have been fixed.