diff --git a/CHANGELOG.md b/CHANGELOG.md
index 170647f7..513d6c2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ Bug Fixes
 
 - Fix from Petr Pražák to avoid compilation errors when using newer versions of LibTomMath.
 - Avoid cases where bignums are not initialized properly by the runtime and incorrectly retain a value of zero.
+- Handle the following edge cases from R7RS:
+
+  > If z is a complex number, then (real? z) is true if and
+  > only if (zero? (imag-part z)) is true. If x is an inexact
+  > real number, then (integer? x) is true if and only if (=
+  > x (round x)).
 
 ## 0.9.8 - February 16, 2019