new boxes

i love kodi BUT I have had too buy a new tablet as my old one will not take krypyon as its 4.2 also I have had too buy new mxq boxes as the old mx box wont take krypton is this fair its getting too expensive every timr a new kodi is made it costs a lot of money plse stay with what we have Jarvis was fine so why new builds all the take I don’t understand my old tablet has Jarvis on it but how long before all the adds on that shut down a lot have already