Non-technical point release:

The following documents have been updated, to reflect changes to the copyright. No technical changes have been performed.

S4000P Issue 2.2, April 2023, PDF, 11.8 MBytes

S-Series 2021 block release:

The specification S4000P Issue 2.1 can be downloaded for free using the following link:

S4000P Issue 2.1, April 2021, PDF, 7.75 MBytes

Older versions:

S4000P Issue 2.0, August 2018, PDF, 8.4 MBytes

S4000P Issue 1.0, May 2014, PDF, 2.6 MBytes