Add ChangeLog entry

eregon · eregon · commit 14ae8d6670b2 · 2019-12-31T14:29:58.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -75,6 +75,7 @@ Compatibility:
 * Include the major kernel version in `RUBY_PLATFORM` on macOS like MRI (#1860, @eightbitraptor).
 * Implemented `Enumerator::Chain`, `Enumerator#+`, and `Enumerable#chain` (#1859, #1858).
 * Implemented `Thread#backtrace_locations` and `Exception#backtrace_locations` (#1556).
+* Implemented `rb_get_alloc_func` and related functions (#1874, @XrXr).
 
 Performance:
 
