diff --git a/docs/develop/ports/arm/limitations.txt b/docs/develop/ports/arm/limitations.txt
new file mode 100644
index 0000000000..7d080c831d
--- /dev/null
+++ b/docs/develop/ports/arm/limitations.txt
@@ -0,0 +1,2 @@
+* Does not support < ARMv5
+* Requires support for high vectors