We always recommend having the latest version of the software you are using on your POS to have seamless integrations and can save you a lot of time to go live. However, if upgrading to the latest version of the software is not possible due to some reasons, Omnirio can provide a compatible software version for your company but it might take a longer time to build than usual.
Note: The older version of Java/Android/Windows should themselves be supported by the original software vendors (ex: Oracle →Java, Android → Google, Windows → Microsoft).