I would guess you either have wrong version num in files or oc_t_admin table has not been properly updated.
You can even update it manually, there should be 3 new cols.
s_moderator_access VARCHAR(1000) NULL
i_login_fails INT(3) NULL DEFAULT 0
dt_login_fail_date DATETIME NULL
However, if everything is done in standard way, this will not be issue. You would recognize it in case you are logging as admin, but you cannot login and no error message is shown (in that case you know it failed to retrieve record from db due to different set of columns)