diff --git a/feed/history/boost_1_63_0.qbk b/feed/history/boost_1_63_0.qbk
index cbef8555..12c82567 100644
--- a/feed/history/boost_1_63_0.qbk
+++ b/feed/history/boost_1_63_0.qbk
@@ -20,10 +20,6 @@
   * Added the static constant `atomic<T>::is_always_lock_free` for conformance with C++17. The constant indicates that the given specialization always provides lock-free implementation of atomic operations.
   * Improved support of Oracle Studio on x86 targets.
 
-* [phrase library..[@/libs/fiber/ Fiber]:]
-  * unbounded_channel<> and bounded_channel<> renamed to unbounded_queue<> and bounded_queue<>
-  * macro BOOST_FIBERS_SPINLOCK_YIELD to invoke std::this:thread::yield() while busy waiting
-
 * [phrase library..[@/libs/log/ Log]:]
   * General changes:
     * Removed the previously deprecated `type_info_wrapper`.