Yes, the updates include the localization files. The updated French localization is in 8.0.100.15 or later, which hasn’t been released to users yet (which is why you don’t have them). We hope to have 8.0.100.16 (which includes a bunch of bug fixes and the updated localizations) available to pre-release users in the next few days (hopefully later today). It will then go to all users when we feel like it’s safe (i.e. no major issues are found by the pre-release users).
EDIT: 8.0.100.17 should be out to pre-release users.