[Galaxy S 4 i9506 Android Development] Buda1996:
Changelog:

03/01/2015:

STATUS:

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+++Kernel made from source
+++Rom made from source
+++Implemented SPL Metaon (new engine)
+++fixed videolayback
+++Headphones fix
+++Wifi way faster
+++Kernel cleaned of bloatware
+++Unnecesary ROM apps deleted

06/12/2014:

STATUS:

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+++SPL ENGINE REMASTERD
+++Kernel moded
+++Optimized it
+++Delete more bloatware
+++Cleaned up the kernel
+++ SPL Graphic rewritten now a lot better
+++etc....

30/09/2014:

STATUS:

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+++SPL ENGINE REMASTERD
+++Kernel moded
+++Optimized it
+++Now more Ram
+++Battery life is longer
+++Delete more bloatware
+++Cleaned up the kernel
+++Done some changes to the cam
+++ADD SPL Graphic (should make all images better gaming and video quality)
+++etc....

23/09/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++SPL ENGINE UPDATED
+++Cleaned a lot of bloatware
+++Made it cleaner from scratch build
+++SPL deleteted tweaks that dont work
+++Battery a hell lot better
+++Added custome features from arters kernel(note didnt take it from his kernel built the features myself)
+++Repaired the Themes issue
+++Adreno libs hacked should give better video and 3d at games
+++Updated kernel
+++Updated Kernel governors
+++Repaired the Preformance controll
+++Headphones bug is no more
+++SPL is now totaly automated (runs itself via artificial inteligence)
+++many more can't remember

03/09/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++SPL ENGINE UPDATED
+++Kernel moded
+++Rewriten drivers
+++Chery [icked some features
+++Optimized it
+++Now more Ram free
+++CPU control now works fully
+++Better batery life (diabled some unnecesary things)
+++etc....

22/07/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++SPL ENGINE UPDATED
+++Kernel moded
+++Boosted kernel
+++Added new scripts (TESTING)
+++Made kernel Juicer for S4 (FeraVolt helped)
+++Added heads up display
+++Added statusbar costumizations
+++Enabled entropy
+++Full FPS uncap
+++New Theme(Vivek Neel thank him or donate if you can)
+++Messed with WIFI (should be faster)
+++Optimized graphics
+++ADD CROSS GRAPHIC COMPTABILITY VIA SPL IN GOOGLE PLAY
+++ETC...
+++Explore you will find more stuff awaiting....

08/07/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++More preformance
+++New SPL ENGINE (now fully integrated)
+++New Ram Managment scripts
+++Kernel changes
+++Added some kernel patches
+++Diffrent UI
+++ONE Terminal Script
+++Moded graphic drivers
+++Boosted wifi signal
+++Posiblle tethering fix (i dont test)
+++Added some features(chery picked)

30/06/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++Re-wrtitten scripts
+++Added new driver hacks
+++Better ram managment
+++More internet speed
+++Better wifi signal and mobile signal incresed too
+++Organized nicely (for better functianality)
+++Adapted to S4
+++Added CPU hacks for better core managment(may give better batery life)
+++Moded Image and Video processing engine
+++Better sound (messed with sound scripsts)

24/06/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++Switched to opensource ril-daemon.
+++Added ISO modes to camera.
+++Updated GPS HAL.
+++Re-invented SPL
+++Better gaming preformance
+++More responsive now
+++Updated SPL Graphic scripts
+++Some high end game testing done(sucsesfull)
+++Many other cant rember
+++Battery drain fix

01/06/2014:

STATUS:

ReLeAsEd DOWNLOAD

+++Ported some good stuff from other kernels
+++Fixed core offline :D (good if u didnt see it)
+++Fixed min freq battery drain issue
+++Added SPL
+++RE-built kernel
+++Updated build fingerprints and model property.
+++Some smali changes