SKernel

SKernel was created for giving the users of "underprivileged" devices a memorable experience. 
It ensures that everything is perfect from kernel side. 
SKernel was created in mind, keeping these things - Speed, Performance and Stability. 
None had an upper hand over the other, all were given equal importance. 
After all the bits were in their right places, SKernel was born.
Initially built for the LG Optimus L5, SKernel now supports all the variants of LG Optimus L5, L7 and L3 II.

Last device added to the line is the Yu Yuphoria 
This Kernel, ie, for the Yu Yuphoria is still in Alpha/Test phase

To build for Yuphoria:
-Use of Google GCC 4.9 aarch64 is recommended
1) Move to kernel directory
2) export ARCH=arm64
3) export subarm=arm64
4) export CROSS_COMPILE=~/path.to.toolchain/aarch64-linux-android-4.9/bin/aarch64-linux-android-
5) make skernel_lettuce64_defconfig
6) time make -j3

Official Maintainers
Suhail (skyinfo) - LG Optimus L5, L7, L3 II and Yuphoria
Caio (Caio99BR)  - LG Optimus L3 II and Yuphoria

Linux 3.x release notes - https://www.dropbox.com/s/oxooq654yzx4z22/Linux%203.x%20notes.txt?dl=0