diff --git a/docs/system/removed-features.rst b/docs/system/removed-features.rst
index 29e90601a5..c21e6fa5ee 100644
--- a/docs/system/removed-features.rst
+++ b/docs/system/removed-features.rst
@@ -285,6 +285,12 @@ The RISC-V no MMU cpus have been removed. The two CPUs: ``rv32imacu-nommu`` and
 ``rv64imacu-nommu`` can no longer be used. Instead the MMU status can be specified
 via the CPU ``mmu`` option when using the ``rv32`` or ``rv64`` CPUs.
 
+``compat`` property of server class POWER CPUs (removed in 6.0)
+'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
+
+The ``max-cpu-compat`` property of the ``pseries`` machine type should be used
+instead.
+
 System emulator machines
 ------------------------