diff --git a/config.sub b/config.sub
index 7a05edd..7384e91 100755
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2021 Free Software Foundation, Inc.
 
-timestamp='2021-04-21'
+timestamp='2021-04-30'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1204,9 +1204,13 @@ case $cpu-$vendor in
 			| mips64vr5900 | mips64vr5900el \
 			| mipsisa32 | mipsisa32el \
 			| mipsisa32r2 | mipsisa32r2el \
+			| mipsisa32r3 | mipsisa32r3el \
+			| mipsisa32r5 | mipsisa32r5el \
 			| mipsisa32r6 | mipsisa32r6el \
 			| mipsisa64 | mipsisa64el \
 			| mipsisa64r2 | mipsisa64r2el \
+			| mipsisa64r3 | mipsisa64r3el \
+			| mipsisa64r5 | mipsisa64r5el \
 			| mipsisa64r6 | mipsisa64r6el \
 			| mipsisa64sb1 | mipsisa64sb1el \
 			| mipsisa64sr71k | mipsisa64sr71kel \
diff --git a/doc/config.sub.1 b/doc/config.sub.1
index 9d0c81d..56457c6 100644
--- a/doc/config.sub.1
+++ b/doc/config.sub.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
-.TH CONFIG.SUB "1" "April 2021" "GNU config.sub (2021-04-21)" "User Commands"
+.TH CONFIG.SUB "1" "April 2021" "GNU config.sub (2021-04-30)" "User Commands"
 .SH NAME
 config.sub \- validate and canonicalize a configuration triplet
 .SH SYNOPSIS
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index ca60ac5..53fcfa9 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -419,6 +419,10 @@ mipsisa32					mipsisa32-unknown-elf
 mipsisa32el					mipsisa32el-unknown-elf
 mipsisa32r2					mipsisa32r2-unknown-elf
 mipsisa32r2el					mipsisa32r2el-unknown-elf
+mipsisa32r3					mipsisa32r3-unknown-elf
+mipsisa32r3el					mipsisa32r3el-unknown-elf
+mipsisa32r5					mipsisa32r5-unknown-elf
+mipsisa32r5el					mipsisa32r5el-unknown-elf
 mipsisa32r6					mipsisa32r6-unknown-elf
 mipsisa32r6-elf					mipsisa32r6-unknown-elf
 mipsisa32r6el					mipsisa32r6el-unknown-elf
@@ -427,6 +431,10 @@ mipsisa64					mipsisa64-unknown-elf
 mipsisa64el					mipsisa64el-unknown-elf
 mipsisa64r2					mipsisa64r2-unknown-elf
 mipsisa64r2el					mipsisa64r2el-unknown-elf
+mipsisa64r3					mipsisa64r3-unknown-elf
+mipsisa64r3el					mipsisa64r3el-unknown-elf
+mipsisa64r5					mipsisa64r5-unknown-elf
+mipsisa64r5el					mipsisa64r5el-unknown-elf
 mipsisa64r6					mipsisa64r6-unknown-elf
 mipsisa64r6-elf					mipsisa64r6-unknown-elf
 mipsisa64r6el					mipsisa64r6el-unknown-elf