Changelog.md in gir_ffi-tracker-0.12.0 vs Changelog.md in gir_ffi-tracker-0.12.1

@@ -1,4 +1,8 @@
+## 0.12.1 / 2018-07-09
+
+* Restore support for CRuby 2.1 and 2.2
+
 ## 0.12.0 / 2018-03-25
 
 * Depend on GirFFI 0.12.0
 * Support Tracker 2.0
 * Require CRuby 2.3 or above