From Canon:
Thank you for using Canon products.
Details
Firmware Version 1.0.5 incorporates the following fixes:
Firmware Version 1.0.5 is for cameras with firmware up to Version 1.0.4 If the camera's firmware is already Version 1.0.5, it is not necessary to update the firmware.
Support
Download Firmware Version 1.0.5 for the EOS 7D Mark II.
If you have not already done so, please register your Canon EOS 7D Mark II. By registering, we will be able to notify you via email about future announcements.
This information is for residents of the United States and Puerto Rico only. If you do not reside in the USA or Puerto Rico, please contact the Canon Customer Support Center in your region.
Thank you,
Customer Support Operations
Canon U.S.A., Inc
Update: As of this morning, firmware version 1.0.5 isn't yet available on Canon USA's website. However, it can be found on Canon UK's 7D II Product Page.