Hi @Anonymous,
I did some testing and when upgrading the Vault Client the Vault Saved searches do not show up. I also check the different versions to see where it saves the files. I suspect you will need to use a .bat file to copy the saved search files to the next version file location. Also, remember if the server name or vault name changes you will need to make sure to put it in the right folder.
Vault 2018:
C:\Users\\AppData\Roaming\Autodesk\VaultCommon\Servers\Services_Security_1_6_2017\\Vaults\\Searches
Vault 2017:
C:\Users\\AppData\Roaming\Autodesk\VaultCommon\Servers\Services_Security_2_3_2016\\Vaults\\Searches
Vault 2016:
C:\Users\\AppData\Roaming\Autodesk\VaultCommon\Servers\Services_Security_1_22_2015\\Vaults\\Searches
Vault 2015:
C:\Users\\AppData\Roaming\Autodesk\VaultCommon\Servers\Services_Security_1_22_2014\\Vaults\\Searches
I wish I had better news for you. Please let me know what happens once you update.
Since this is not a Vault feature, please post your idea in the Vault Idea Station to request the saved searches get automatically added to the Vault Client when installing the next version of the Vault Client.
Thanks,
Jason