Update release wrt #160 fix

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -110,3 +110,6 @@ Stephane Paulus (StephanePaulus@github)
   * Contributed #129: Add gradle-module-metadata-maven-plugin
   (2.14.0)
 
+Joo Hyuk Kim (@JooHyukKim)
+  * Fixed #160: Cannot serialize `org.joda.time.Days`
+  (2.18.4)

release-notes/VERSION-2.x

@@ -4,6 +4,12 @@ Project: jackson-datatype-joda
 === Releases ===
 ------------------------------------------------------------------------
 
+2.18.4 (not yet released)
+
+#160: Cannot serialize `org.joda.time.Days`
+ (reported by @bestbugwriter)
+ (fixed by Joo-Hyuk K)
+
 2.18.3 (28-Feb-2025)
 2.18.2 (27-Nov-2024)
 2.18.1 (28-Oct-2024)