diff --git a/CRAN-RELEASE b/CRAN-RELEASE
new file mode 100644
index 0000000..f857be5
--- /dev/null
+++ b/CRAN-RELEASE
@@ -0,0 +1,2 @@
+This package was submitted to CRAN on 2021-09-28.
+Once it is accepted, delete this file and tag the release (commit 30ce0fe).