Update source/news/2024/unit-1.33.0-released.rst

Author: JTorreG

source/news/2024/unit-1.33.0-released.rst

@@ -42,7 +42,7 @@ Chunked request body support
 ****************************
 
 Unit can now accept chunked requests rather than returning **411
-Length Required**. This feature is experimental and can
+Length Required**. This feature is experimental (not documented and subject to change), and can
 be enabled setting the **/settings/chunked_transform** configuration option
 to true.