diff --git a/README.md b/README.md
index ede7b7d0..d5a94924 100644
--- a/README.md
+++ b/README.md
@@ -141,6 +141,8 @@ A "version" is described by the `v2.0.0` specification found at
 <https://semver.org/>.
 
 A leading `"="` or `"v"` character is stripped off and ignored.
+Support for stripping a leading "v" is kept for compatibility with `v1.0.0` of the SemVer
+specification but should not be used anymore.
 
 ## Ranges