It would appear nothing had uploaded since garmin express 4.0.15, not sure when it was released but nothing has updated since 8th April.
Windows 8.1
Joy of the new system you don't click sync means you also don't check it actually synced.
Presently 810 states its sync'd via garmin express but nothing uploaded. 910XT sometimes syncs sometimes fails (not that the failures give you any reason or log locations as previous version once did)
The update Garmin express Update option also failed twice again no details as to why. so i downloaded and upgraged to 4.0.17 and
the same issues, states its synced but nothing uploaded. under settings for each device the account is set up correctly. note i see alot less settings in the past when my 910xt would not synce new activites i could go to settings and transfer all, that resolved it this function seems nolonger to be applicable.
Note my FR60 has never synced since Garmin Express was introduced (previous mentioned on here). Luckily I have a old win 7 desktop with garmin connect addin that I use to upload this on.
Few things regarding the choice to remove the sync button.
If it fails how do you resync
If you connect multiple devices how do you know what to sync - now you have to connect a device wait then connect the next etc. not that anything is actually uploading for me
ll I really want is a link to old versions of Garmin Express which worked so i can install and stop auto updates.