CyanogenMod 13, based on Android 6.0 Marshmallow, was formally released back in March, but it's only just arriving for some devices, in the form of nightlies. The most notable of these devices are probably the original HTC One and the Wileyfox Spark, plus the Spark X - the Spark's bigger, more powerful brother.
The HTC One is being bumped up from CM12.1, which was based on 5.1 Lollipop, while the Spark and Spark X are receiving their first taste of the custom ROM, albeit not their first Cyanogen flavored taste though, since they run the in-house Cyanogen OS, which has recently been killed off. Also receiving CM13 are two Aquarius devices, the E5 4G and the X5, with the X5 also being bumped up from CM12.1.
Devices receiving CM13 recently
- HTC One (M7)
- Wileyfox Spark (porridge)
- Wileyfox Spark X (porridgek3)
- Aquarius X5 (paella)
- Aquarius E5 4G (vegetalte)
For the readers with those devices who are interested in flashing CyanogenMod, the links to the device pages can be found at the source below. Remember to follow guidelines when flashing to ensure the device does not get bricked, and to back out if you're unsure of what you're doing.