[Dev-C++] "newer" Header files

[Michael D. S. <for...@hi...>]

In searching for two header files I needed, I was forced to download a 
bunch. Many of them have the same names as the Dev-C++ header files I 
downloaded (not to long ago) with Dev-C++ but are newer.

Any harm in using all the newer header files? Or should I avoid changes 
unless absolutely necessary -- like the two I was completely missing?