[Galaxy Note 4 General] kylothow:
As someone asked I'm opening this thread mostly for reference and for making the ROM visible, for questions and, why not, future updates ;)

I'm not a developer, I'm just an Android enthusiast compiling from source.

Big thanks to our maintainers [MENTION=3296134]gekkehenkie11[/MENTION] and [MENTION=2457777]slayher[/MENTION], without all their work we wouldn't have any version of CyanogenMod on our Note 4s :good:

CyanogenMod is a free, community built distribution of Android which greatly extends the capabilities of your phone.

#include
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

Here you go!

That's my personal CyanogenMod build based on latest CyanogenMod 12.1 (Android 5.1) code, from the 'cm-12.1' branch.

Everything is working (apparently) fine, just make sure to do a full wipe before flashing and, of course, using a 5.1 Gapps package.

I'll try providing regular updates till the official nightlies switch to the new branch.

Please report bugs and impressions about the ROM, it can be useful for other users interested in this ROM too.

#Download#​

***

Ok guys, official builds are now compiled every day by Jenkins, so my job ends here :)

Download folder with all the official nightlies

***​

Latest version: *17/04/2015*

Link to the folder with the ROM and MD5 checksum (download and put in the same folder as the ROM and recovery will check package integrity before flashing).

NOTE: LATEST RELEASE IS NOW ON MEGA:

Download folder on MEGA (mega.co.nz)

THIS IS THE FOLDER WHERE I USED TO PUBLISH BEFORE:

Download folder on Dev-Host (d-h.st)

By the way, I use these Gapps: http://xdaforums.com/showthread.php?t=2997368

Obviously you can use the Gapps from the Gapps provider you prefer, with the only restriction they need to be SPECIFICALLY for 5.1 (really, they changed the position of a few packages with the upgrade from 5.0.x so there's need of new scripts, or you'll break most apps).

#Changelog#​

Personal changelog (changes made by me or I think are relevant) relative to latest version available for download:

17/04/2015
- [STRIKE]Camera is completely fixed[/STRIKE] sadly not :'(
15/04/2015
- Various cool commits
- We're now on Android 5.1.0_r5 (LMY47O)
11/04/2015
Just another update :)
- Camera looks less crashy (still happening when it doesn't want to work)
9/04/2015
Various stuff updated in the code
6/04/2015
- Flashlight toggle in QuickSettings not working: fixed!
- Cannot import contacts from local storage: fixed!
- Various Qualcomm specific commits
- Looks smoother and snappier doing various operations
4/04/2015
[COLOR="Red"]- Switched all device specific sources to the new cm-12.1 branches![/COLOR]
3/04/2015
No noticeable changes
2/04/2015
Initial release (only available on MEGA)

Here you can find CyanogenMod changelog (changes to source code pushed by developers):

http://review.cyanogenmod.org/#/q/status:merged+branch:cm-12.1,n,z

#Flashing#​

- Full wipe (system, cache, data, dalvik cache)

- Flash the ROM package

- Flash the Gapps for Android 5.1 package(s)

- Reboot and enjoy!

#Updating#​

If you're coming from a previous build of cm-12.1:

- Caches wipe (cache & dalvik cache)

- Flash the ROM package

- (facoltative, depending if you previously installed Gapps and they had backup script) Flash the Gapps for Android 5.1 package(s)

- Reboot and enjoy!

If you're coming from cm-12.0 or even cm-11.0 you can try to do a dirty flash (not sure if it will work, CyanogenMod stated it's possible, anyway do a backup before trying!):

- Caches wipe + system wipe (cache, dalvik cache, system)

- Flash the ROM package

- (make sure you wiped system and downloaded new Gapps) Flash the Gapps for Android 5.1 package(s)

- Reboot and enjoy!