Just days after WordPress 3.7 was released, version 3.7.1 is now available. According to WP, this release addresses 11 bugs found in version 3.7. The good news for those who already upgraded to version 3.7 is that you probably had the new 3.7.1 version installed automatically via the new background update feature.
The automatic update feature worked out well for me, although I was a bit concerned at first since only a couple of my sites were auto-updated. However, by the end of the day, all of my websites were updated to version 3.7.1. Interestingly, even sites on the same server were updated at different times during the day. After checking my email though, I found that I had been notified about the WordPress updates.
The notification email you received regarding the update is worded as follows:
Howdy! Your site at http://yoursite.com has been updated automatically to WordPress 3.7.1.
No further action is needed on your part. For more on version 3.7.1, see the About WordPress screen:
If you experience any issues or need support, the volunteers in the WordPress.org support forums may be able to help.
You also have some plugins or themes with updates available. Update them now:
The WordPress Team