diff --git a/README.md b/README.md
index 394cb54..3546223 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,8 @@ Not only the test suite itself, a TOML reader/encoder also runs on [CircleCI](ht
 You can see the error messages about invalid files and serialization results of valid files at
 [CircleCI](https://circleci.com/gh/ToruNiina/toml11).
 
+Now a beta version of [the next major update](https://github.com/ToruNiina/toml11/tree/v3) is released. Try it!
+
 ## Example
 
 ```cpp