diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/rest/param/DateRangeParam.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/rest/param/DateRangeParam.java
index 88c32914170..aa20383f423 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/rest/param/DateRangeParam.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/rest/param/DateRangeParam.java
@@ -215,6 +215,15 @@ public class DateRangeParam implements IQueryParameterAnd<DateParam> {
 	 * This lower bound is assumed to have a <code>ge</code>
 	 * (greater than or equals) modifier.
 	 * </p>
+	 * <p>
+	 * Note: An operation can take a DateRangeParam. If only a single date is provided,
+	 * it will still result in a DateRangeParam where the lower and upper bounds
+	 * are the same value. As such, even though the prefixes for the lower and
+	 * upper bounds default to <code>ge</code> and <code>le</code> respectively,
+	 * the resulting prefix is effectively <code>eq</code> where only a single
+	 * date is provided - as required by the FHIR specificiation (i.e. "If no
+	 * prefix is present, the prefix <code>eq</code> is assumed").
+	 * </p>
 	 */
 	public DateRangeParam setLowerBound(String theLowerBound) {
 		setLowerBound(new DateParam(GREATERTHAN_OR_EQUALS, theLowerBound));
@@ -298,6 +307,15 @@ public class DateRangeParam implements IQueryParameterAnd<DateParam> {
 	 * This upper bound is assumed to have a <code>le</code>
 	 * (less than or equals) modifier.
 	 * </p>
+	 * <p>
+	 * Note: An operation can take a DateRangeParam. If only a single date is provided,
+	 * it will still result in a DateRangeParam where the lower and upper bounds
+	 * are the same value. As such, even though the prefixes for the lower and
+	 * upper bounds default to <code>ge</code> and <code>le</code> respectively,
+	 * the resulting prefix is effectively <code>eq</code> where only a single
+	 * date is provided - as required by the FHIR specificiation (i.e. "If no
+	 * prefix is present, the prefix <code>eq</code> is assumed").
+	 * </p>
 	 */
 	public DateRangeParam setUpperBound(String theUpperBound) {
 		setUpperBound(new DateParam(LESSTHAN_OR_EQUALS, theUpperBound));
@@ -618,6 +636,15 @@ public class DateRangeParam implements IQueryParameterAnd<DateParam> {
 		return b.toString();
 	}
 
+	/**
+	 * Note: An operation can take a DateRangeParam. If only a single date is provided,
+	 * it will still result in a DateRangeParam where the lower and upper bounds
+	 * are the same value. As such, even though the prefixes for the lower and
+	 * upper bounds default to <code>ge</code> and <code>le</code> respectively,
+	 * the resulting prefix is effectively <code>eq</code> where only a single
+	 * date is provided - as required by the FHIR specificiation (i.e. "If no
+	 * prefix is present, the prefix <code>eq</code> is assumed").
+	 */
 	private void validateAndSet(DateParam lowerBound, DateParam upperBound) {
 		if (hasBound(lowerBound) && hasBound(upperBound)) {
 			if (lowerBound.getValue().getTime() > upperBound.getValue().getTime()) {
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/4_2_0/changes.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/4_2_0/changes.yaml
index e0c2bfd651c..751ab54a333 100644
--- a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/4_2_0/changes.yaml
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/4_2_0/changes.yaml
@@ -41,18 +41,27 @@
     type: "fix"
     title: "A missing mandatory was added to the SNOMED CT CodeSystem that is uploaded when SCT is uploaded to the JPA server. Thanks to Anders Havn for the pull request!"
 - item:
-   issue: 1643
-   type: fix
+   issue: "1643"
+   type: "fix"
    title: "When validating resources containing custom valuesets defined in PrePopulatedValidationSupport
       outside of the JPA server, sometimes code systems could not be found resulting in false negative
       errors."
 - item:
-   issue: 1588
-   type: add
+   issue: "1588"
+   type: "add"
    title: "Support for several new operators has been added to the `_filter` support in the JPA server. Thanks
       to Anthony Sute for the Pull Request!"
 - item:
-   issue: 1650
-   type: fix
-   title: Several misleading comments in documentation code snippets were fixed. Thanks to
-      Jafer Khan for the pull request!
+   issue: "1650"
+   type: "fix"
+   title: "Several misleading comments in documentation code snippets were fixed. Thanks to
+      Jafer Khan for the pull request!"
+- item:
+     issue: "1645"
+     type: "add"
+     title: "The following utility methods have been added:
+            <ul>
+               <li><code>DateRangeParam#isDateWithinRange(Date theDate)</code></li>
+               <li><code>DateRangeParam#isDateWithinLowerBound(Date theDate)</code></li>
+               <li><code>DateRangeParam#isDateWithinUpperBound(Date theDate)</code></li>
+            </ul>"
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 1a2eb9963f7..498233d327a 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -77,16 +77,6 @@
 				An issue with the HAPI FHIR CLI was corrected that prevented the upload of LOINC due to an error
 				regarding the properties file.
 			</action>
-			<action type="add" issue="1645">
-				The following utility methods have been added:
-				<![CDATA[
-				<ul>
-					<li><code>DateRangeParam#isDateWithinRange(Date theDate)</code></li>
-					<li><code>DateRangeParam#isDateWithinLowerBound(Date theDate)</code></li>
-					<li><code>DateRangeParam#isDateWithinUpperBound(Date theDate)</code></li>
-				</ul>
-				]]>
-			</action>
 		</release>
 		<release version="4.1.0" date="2019-11-13" description="Jitterbug">
 			<action type="add">