diff --git a/doc/container.qbk b/doc/container.qbk
index 406632a..d20b256 100644
--- a/doc/container.qbk
+++ b/doc/container.qbk
@@ -1458,6 +1458,7 @@ use [*Boost.Container]? There are several reasons for that:
 * Implemented overaligned allocation support for `new_allocator` and `pmr::new_delete_resource()`:
    * If available, uses C++17's utilities under the `__cpp_aligned_new` feature.
    * Uses alternative aligned allocation functions (`posix_memalign`, `aligned_alloc`, `_aligned_malloc`...) otherwise.
+* Updated `basic_string` to the latest standard API: Added missing `string_view` members and updated `operator[]` to be able to return the terminating null.
 * Fixed bugs/issues:
    * [@https://github.com/boostorg/container/issues/323 GitHub #323: ['"flat_tree::try_emplace UB"]].