Hummingbird was updated to version 1.8.1, from version 1.8.0.4. Changelog:
- New: Option to auto clear cache on plugin/theme update
- New: Option to hide all notices
- New: Option to show clear cache button on the admin bar
- Enhance: Various performance improvements and tweaks
- Enhance: Removed duplicate queries
- Enhance: Optimize database writes/reads
- Enhance: Keep compression settings when switching from advanced to basic view in asset optimization
- Enhance: Javascript code optimization
- Enhance: Improve WP_CACHE detection to avoid PHP warnings on some configurations
- Enhance: Increased expiry time for files in asset optimization module
- Fix: Remove RSS feeds from page caching
- Fix: Empty exclusion rules in page cache settings were halting all page caching
- Fix: Publish changes button not working after bulk updates
- Fix: Page caching exclusion rules will now only escape the dot in the file extension (if present)
- Fix: Product page type not showing in page caching settings