The WordPress CMS development team released version 5.0.3 last night. WordPress 5.0.3 is a maintenance version that fixes 44 bugs.
The development team's primary focus for this release was the performance improvements of the block processor, which seems to have been achieved since the team reports that speed has improved by 330% in a publication containing 200 blocks.
Here are some of the additional features:
The release includes a total of 45 improvements to the block processor (7 Performance Improvements and 37 Error Corrections).
To read the complete list of changes, please consult changelog.
You can download WordPress 5.0.3, or visit the Dashboard → Updates and click Update Now. Sites that support automatic updates will be updated automatically.