Why You Should Always Use the Latest Version of WordPress
1. Security
Security is arguably the most important reason why you should keep your WordPress website up to date.
2. Cool New Features
Each major WordPress release comes with new features and changes to the software. For example, WordPress 4.0 came with improved plugin install experience, 4.1 introduced inline image editing, and 4.2 came with faster plugin updates.
3. Speed
WordPress developers are always trying to make things faster. Each new release comes with several performance improvements that makes WordPress run faster and more efficient.
4. Compatibility (or NOT)
Often plugin and theme developers coordinate their updates with major WordPress releases to ensure they’re taking advantage of newly available features and enhancements.