How to upgrade Android kernel version I am running a Android device with a kernel version of 3.4.5 on a soc made by mediatek (MT6582). Now recently I found a within post with the stock untouched KitKat based kernel for MT6582. This new KitKat kernel is version 3.4.67 I believe. And in the github page the guy mentioned a thing about upgrading the kernel version without having to necessarily make a new one. It didnt have any steps and I didn't really understand much if someone can help on how to upgrade the Linux kernel it would very very helpful.
Here is what it read:


  Unlike patches for the 3.x kernels, patches for the 3.x.y kernels
     (also known as the -stable kernels) are not incremental but instead apply
     directly to the base 3.x kernel.  Please read
     Documentation/applying-patches.txt for more information.
  
  Alternatively, the script patch-kernel can be used to automate this
     process.  It determines the current kernel version and applies any
     patches found.

linux/scripts/patch-kernel linux

  
  The first argument in the command above is the location of the
     kernel source.  Patches are applied from the current directory, but
     an alternative directory can be specified as the second argument.
  
  If you are upgrading between releases using the stable series patches
     (for example, patch-3.x.y), note that these "dot-releases" are
     not incremental and must be applied to the 3.x base tree. For
     example, if your base kernel is 3.0 and you want to apply the
     3.0.3 patch, you do not and indeed must not first apply the
     3.0.1 and 3.0.2 patches. Similarly, if you are running kernel
     version 3.0.2 and want to jump to 3.0.3, you must first
     reverse the 3.0.2 patch (that is, patch -R) before applying
     the 3.0.3 patch.


So does anyone know how I can upgrade my kernel version...if yes can you please tell me how another related info to help me would also be appreciated.
Thanks
I totally doubt if the kernel is for MTK devices because as per my knowledge goes (I too own a MT6582 device) MTK is a partially closed-source SoC manufacturer who gives out the source code by purchasing.
MTK makes a standard ROM based on AOSP and gives it out to companies but no companies are allowed to edit the ROM unless they buy the license for it.
This means that non-MTK associates can not make any part of the ROM as they don't have  the source-code

My Suggestion: Don't try this stunt because you may end up with a kernel with miss matching drivers and also a boot-looped device as a bonus :)