As I write this on 2022-Dec-22, the links to the releases on the P4.org specifications page still shows Portable Switch Architecture (PSA) version 1.1 and Portable NIC Architecture (PNA) version 0.5 as the latest releases, but I expect that those will be updated by early in Jan of 2023.
Specifications « P4 – Language Consortium
Until then, the "Working draft" link for PSA points at the new version 1.2, and for PNA points at the new version 0.7.
Here is a link to the revision history section for PSA version 1.2, with a summary of changes made since version 1.1 (released Nov 2018!). These are fairly small changes:
P4~16~ Portable Switch Architecture (PSA)
Here is a link to the revision history section for PNA version 0.7, with a summary of changes made since version 0.5. Some of these are significant changes:
P4 Portable NIC Architecture (PNA)
The PNA spec is still pre-1.0, and we expect to have another pre-1.0 release in April 2023. If you are interested in participating or following along more often, please see the README in this repository for further details:
p4lang/pna: Portable NIC Architecture (github.com)
Regards,
Mario Baldi & Andy Fingerhut
Co-chairs, P4.org Architecture work group