NeoScrypt CPUminer v2.4.1 released, see the OP.
20% to 50% performance improvement over the previous release depending on CPU and engine.
NeoScrypt CPUminer v2.4.1
Usage: minerd [OPTIONS]
Options:
-a, --algo=ALGO specify the algorithm to use
neoscrypt NeoScrypt(128, 2, 1) with Salsa20/20 and ChaCha20/20 (default)
altscrypt Scrypt(1024, 1, 1) with Salsa20/8 through NeoScrypt
scrypt Scrypt(1024, 1, 1) with Salsa20/8
sha256d SHA-256d
-e, --engine=N choose a NeoScrypt hashing engine
0 integer (default)
1 SSE2
2 SSE2 4-way