Minecraft old mods on new versions?

Me and my girlfriend have a minecraft server and play on the 1.12.2 with mods, but there are many things that upset us, before that we had played without mods on the 1.13.2, which was much better. The only thing is that if I want to update the server, I can't use the mods for 1.12.2 for the 1.13.2 version (or 1.14, we don't really care, the main thing is higher than 1.12) and that Most of the mods that we now have and would also like to keep are no longer updated in the newer versions, is there any way to play old mods on new versions? Or can you possibly update the mods yourself or something, so that we can also use them for the new versions?

You won't be able to do anything without an advanced programming know-how. There are sometimes serious differences between different versions of Minecraft due to the fact that the mods do not run easily on newer versions

Oh okay. Would be a shame if we can't use certain features of the newer versions, and we can't use many mods in the newer versions, we have built some with items from mods, if the mod is not in it, a lot would be ruined: I

Yes, that's how it is. When you start a modded world you are pretty much stuck on the version

Mhm.-.

Which mods do you play with?

Around 70 pieces, decocraft, furniture mod, biomes o plenty, many deco models, but also mods for fun and emoticons

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