diff --git a/CHANGES.md b/CHANGES.md
index a44b04d40..0a7b26d7d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # Changes
 
+## Unreleased
+### Added
+* `middleware::NormalizePath` now has configurable behaviour for either always having a trailing slash,
+  or as the new addition, always trimming trailing slashes.
+
 ## 3.0.0-beta.3 - 2020-08-17
 ### Changed
 * Update `rustls` to 0.18
diff --git a/MIGRATION.md b/MIGRATION.md
index 7459b5b2d..0e73b7d47 100644
--- a/MIGRATION.md
+++ b/MIGRATION.md
@@ -32,6 +32,10 @@
   }
   ```
 
+* `middleware::NormalizePath` can now also be configured to trim trailing slashes instead of always keeping one.
+  It will need `middleware::normalize::TrailingSlash` when being constructed with `NormalizePath::new(...)`,
+  or for an easier migration you can replace `wrap(middleware::NormalizePath)` with `wrap(middleware::NormalizePath::default())`.
+
 ## 2.0.0
 
 * `HttpServer::start()` renamed to `HttpServer::run()`. It also possible to