Parece la misma pero no lo es, esta es la 519, no 518, lo acabo de ver ahora mismo y me di cuenta.
A new update will be available to the first wave of Preview members beginning at 6PM on 5/21. Please note this initial release of the June update preview is available in Waves – if the option does not become available for you to install at 6PM, it’s likely you are in the second wave.
This initial June update contains small tweaks to the Party app to help us better understand issues reported by participants.
HOW TO GET IT
◾If your console is in Instant-On mode, it will download and install the update and reboot to standby.
◾NOTE: Once the update is available to your wave (Today is only available to the initial wave), you can manually begin the update by navigating to Settings > System and selecting System Update.
◾If your console hasn’t downloaded and installed the update by 1:00AM PT 5/23/2015, you will be prompted to do so at that time.
DETAILS
OS version released: xb_rel_1506.150519-2200
Available: 6:00PM PT 5/21 (2AM GMT 22/5)
CHANGES
◾Small tweaks to the Party app to help us understand issues reported by the community.
KNOWN ISSUES
◾Please report any issues you discover via the Report a problem feature or in the forums!
Thank you for your participation in the Preview program!