Last Friday, NIST released the draft of the FIPS 202 standard. It proposes six instances: the four SHA-2 drop-in replacements with fixed output length SHA3-224 to SHA3-512, and the two future-oriented extendable-output functions SHAKE128 and SHAKE256.

The latest version of the Keccak Code Package is in line with the draft and contains test vectors for the six aforementioned instances.