Difference between Map 1.12.1 and 1.12.2

Recently, I did found the maps file for 1.12.2. But, still wondering whether I should use this maps or not.
Just curious whether what are the difference between Maps 1.12.1 and 1.12.2.

If I use maps 1.12.2 for my server. Will the WoW client 1.12.1 going to have any problem?

Actually, I also notice some error with my server when I try to .tele MoltenCore. It said that location "xx, yy, zz doesn't not exist on map id:xx". So, not sure whether it is because i use old version of maps (1.12.1) or not?

Any suggestion?

Nope, there is no difference between the map files. The only thing different in 1.12.2 from 1.12.1 is some kinda fix for the spanish client.

And the problem you're experiencing with teleporting is probably being caused by outdated teleport locations.

this is very easy...
if you use 1.12.1 client, must using 1.12.1 dbc and maps files...

no u don't. 1.12.2 maps and DBCs are EXACTLY the same as 1.12.1