30.6.2.2. ARM NEON
Just an informal name for the "Advanced SIMD instructions"? Very confusing.
ARMv8 architecture reference manual F2.9 "Additional information about Advanced SIMD and floating-point instructions" says:
The Advanced SIMD architecture, its associated implementations, and supporting software, are commonly referred to as NEON technology.
https://developer.arm.com/technologies/neon mentions that is is present on both ARMv7 and ARMv8:
NEON technology was introduced to the Armv7-A and Armv7-R profiles. It is also now an extension to the Armv8-A and Armv8-R profiles.