async def METHOD_NAME(config: Config, time: Time):
    """An old install of the addon warn about upgrade snapshots"""
    with open(config.get(Setting.DATA_CACHE_FILE_PATH), "w") as f:
        data = {
            "upgrades": [
                {
                    "prev_version": str(Version.default()),
                    "new_version": "0.108.1",
                    "date": time.now().isoformat()
                }
            ]
        }
        json.dump(data, f)
    cache = DataCache(config, time)
    assert cache.notifyForIgnoreUpgrades
    assert not cache._config.get(Setting.IGNORE_UPGRADE_BACKUPS)