Hi, here is my doubt:

Time 1)
Application version code 1 and database version 1: creates database
structure. Published without errors.

Time 2)
Application version code 2 and database version 2: some ALTER TABLE
(added some columns). Published without errors, and application
upgrades without errors.

Time 3) very close to Time 2)
Application version code 3 and database version 3: some other ALTER
TABLE (added columns).

If I publish version 3, what does it happen to a user that did not
upgrade from version 1 to version 2? What happens to their database?
In other words, is there a way the market has to keep track of the
application versions and install the right version for the specific
user? If not, how can I know if all my "version 1 users" had already
upgraded to version 2?

Thanks in advance,

Fabio

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