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diff --git a/tools/bpf/bpftool/Documentation/bpftool-btf.rst b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
index ce3a724f50c1..896f4c6c2870 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-btf.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
@@ -36,6 +36,11 @@ DESCRIPTION
otherwise list all BTF objects currently loaded on the
system.
+ Since Linux 5.8 bpftool is able to discover information about
+ processes that hold open file descriptors (FDs) against BTF
+ objects. On such kernels bpftool will automatically emit this
+ information as well.
+
**bpftool btf dump** *BTF_SRC*
Dump BTF entries from a given *BTF_SRC*.