diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3749e11..0e5865f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,11 @@
 Yii Framework 2 HTTP client extension Change Log
 ================================================
 
-2.0.16 under development
+2.0.16 February 13, 2025
 ------------------------
 
-- Enh #239: Support for PHP 8.1 (rhertogh)
 - Bug #240: Fixed `\yii\httpclient\Response::getIsOk()` to include entire 2xx response code range (rhertogh)
+- Enh #239: Support for PHP 8.1 (rhertogh)
 
 
 2.0.15 May 22, 2023
diff --git a/src/Request.php b/src/Request.php
index b6beea6..bc6f920 100644
--- a/src/Request.php
+++ b/src/Request.php
@@ -17,7 +17,8 @@
  * @property string $fullUrl Full target URL.
  * @property string $method Request method.
  * @property-read array $options Request options.
- * @property string|array $url Target URL or URL parameters.
+ * @property string|array|null $url Target URL or URL parameters. Note that the type of this property differs
+ * in getter and setter. See [[getUrl()]] and [[setUrl()]] for details.
  *
  * @author Paul Klimov <klimov.paul@gmail.com>
  * @since 2.0