Suggestions on default file names for "New Password Vault" and "Export Application Settings"

My English is terrible, I use Google Translate.

The default name of the new password library is: keepass.kdbx

It is recommended to increase the version number. The format is as follows: app name + version number.kdbx

The default file name for exporting application settings also increases the version number.
The format is: app name + version number + password library export time.properties

When you see the name, you will know which version of the client generated it. If the latest version of the client is not backward compatible with the data in the future, then we will download the corresponding version according to the name and restore the data.

Search the Android client for the code that assigns default names to new password vaults and exported application settings. Compare the current names with the requested versioned formats, then verify that both generated filenames contain the client version and that the existing file operations still work.

Written by the indexing model from the issue text.