25.08

Support for the Zicond extension and performance optimizations for the out-of-order pipeline.

25.04

Add support for speculative store bypass (SSB) and predictive store forwarding (PSF), along with fixes for scheduling issues, speculation taint tracking, and other minor improvements.

24.01

Introduce an optional cache for the instruction and data memory buses, along with other minor fixes.

23.03

Fixes for the CHERI extension on the in-order pipeline (23.03-I), optimizations and bug fixes on the out-of-order pipeline (23.03-O), basic FPGA synthesis instructions.

23.02

This is the first release with support for both the in-order (23.02-I) and the out-of-order pipeline designs (23.02-O).
It also introduces the official RISC-V architecture ID (32), a branch target predictor, and other minor improvements.

21.08

This is the first release of Proteus, with support only for the in-order pipeline (21.08-I).