diff --git a/README.md b/README.md
index 86050d8..d698f81 100644
--- a/README.md
+++ b/README.md
@@ -1325,4 +1325,6 @@ These dependencies are cheaper to process and webpack uses them when possible
 - `[query]` is now a valid placeholder when for paths based on a `filename` like assets
 - add `Compilation.deleteAsset` to correctly delete an assets and non-shared related assets
 - expose `require("webpack-sources")` as `require("webpack").sources`
-- terser 5
\ No newline at end of file
+- terser 5
+- The `--dev`, `-d`, `--prod`, and `-p` CLI flags were removed in [webpack-cli 4.x](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md#400-beta9-2020-09-19)
+- The `--optimize-minimize` flag has been renamed to `--optimization-minimize`.