Has anybody actually posted their diagnostics on this? Many people aren't reporting this so it would be useful to know what is different about your configuration.
Also, depending on the exact details of your symptoms, it is possible some problem with your configuration or other systems on your network is the actual cause and not some particular version of Unraid.
For example, what do you mean exactly when you say your user shares are gone? Gone from the webUI, or gone from the network? If they are just not showing up in the webUI it is likely a browser issue.
And if the user shares are not in the webUI or on the network, then it is possible some other issue with your disks is breaking user shares.
As always, just because your vague description of your problem reminds you of another persons vague description of their problem doesn't mean the details of your problem is the same as theirs.