diff --git a/documentation/content/en/articles/pr-guidelines/_index.adoc b/documentation/content/en/articles/pr-guidelines/_index.adoc
--- a/documentation/content/en/articles/pr-guidelines/_index.adoc
+++ b/documentation/content/en/articles/pr-guidelines/_index.adoc
@@ -150,9 +150,17 @@
 |freebsd-bugs
 
 |architecture-specific
-|alpha, amd64, arm, i386, ia64, powerpc, sparc64
+|arm, amd64, i386, mips
 |freebsd-_arch_
 
+|architecture-specific: powerpc
+|powerpc64
+|freebsd-ppc
+
+|architecture-specific: riscv64
+|riscv64
+|freebsd-risc
+
 |ports collection
 |ports
 |freebsd-ports-bugs
@@ -242,11 +250,6 @@
 |freebsd-acpi
 |mailing list
 
-|problem with Asynchronous Transfer Mode (ATM) drivers
-|kern
-|freebsd-atm
-|mailing list
-
 |problem with embedded or small-footprint FreeBSD systems (e.g., NanoBSD/PicoBSD/FreeBSD-arm)
 |kern
 |freebsd-embedded
@@ -272,11 +275,6 @@
 |freebsd-ipfw
 |mailing list
 
-|problem with Integrated Services Digital Network (ISDN) drivers
-|kern
-|freebsd-isdn
-|mailing list
-
 |man:jail[8] subsystem
 |kern
 |freebsd-jail