Release riscv-isa-release-71c48b9-2026-05-17

This release was created by: ptomsich
Release of RISC-V ISA, built from commit 71c48b9, is now available.

What's Changed

• Clarifying expectations from implementors specifying reductions and adding a section on arithmetic considerations for block scaling by @joseemoreira in #51

Full Changelog: riscv-isa-release-b1fbabb-2026-05-15...riscv-isa-release-71c48b9-2026-05-17