diff --git a/src/main/asciidoc/index.adoc b/src/main/asciidoc/index.adoc
index 8483627d..2845c248 100644
--- a/src/main/asciidoc/index.adoc
+++ b/src/main/asciidoc/index.adoc
@@ -1,5 +1,5 @@
 = Spring HATEOAS - Reference Documentation
-Oliver Gierke; Greg Turnquist; Jay Bryant
+Oliver Drotbohm; Greg Turnquist; Jay Bryant
 :revnumber: {version}
 :revdate: {localdate}
 :toc: left
@@ -7,7 +7,7 @@ Oliver Gierke; Greg Turnquist; Jay Bryant
 
 This project provides some APIs to ease creating REST representations that follow the https://en.wikipedia.org/wiki/HATEOAS[HATEOAS] principle when working with Spring and especially Spring MVC. The core problem it tries to address is link creation and representation assembly.
 
-(C) 2012-2019 The original authors.
+(C) 2012-2021 The original authors.
 
 NOTE: Copies of this document may be made for your own use and for distribution to others, provided that you do not charge any fee for such copies and further provided that each copy contains this Copyright Notice, whether distributed in print or electronically.
 
diff --git a/src/main/resources/changelog.txt b/src/main/resources/changelog.txt
index 2628859c..1ff60c32 100644
--- a/src/main/resources/changelog.txt
+++ b/src/main/resources/changelog.txt
@@ -1,5 +1,25 @@
 Spring HATEOAS Changelog
 ========================
+Changes in version 1.4 M1 (2021-07-14)
+----------------------------------------
+- #1586 - Upgrade to Reactor 2020.0.9.
+- #1585 - Upgrade to Spring Framework 5.3.9.
+- #1583 - Full support for level 4 URI templates.
+- #1563 - Consider @JsonProperty-defined property name for affordance metadata.
+- #1562 - Add MARKDOWN as a supported Alps documentation format.
+- #1557 - Add @DecimalMin and @DecimalMax for Hal+Forms Property Metadata.
+- #1548 - IllegalStateException with @RequestParam Map<String, String>.
+- #1545 - Upgrade to JSON Path 2.6.0.
+- #1540 - Embedded curie causes two _links in API response.
+- #1534 - Upgrade to Spring 5.3.7.
+- #1530 - Add build profile for Kotlin 1.5.0 compatibility.
+- #1529 - Make WebConverters public.
+- #1523 - Provide additional HtmlInputType's for checkbox, radio and file.
+- #1521 - Cannot bootstrap HATEOAS without a default media type enabled.
+- #1516 - Handle deprecation for PropertyNamingStrategyBase.
+- #1515 - Exception on HAL serialization with object mapper configured to sort map entries by keys.
+- #1475 - Fix custom media type parser documentation.
+-  #467 - AnnotationMappingDiscoverer should read @RequestMapping#params().
 
 Changes in version 1.3 GA (2021-04-13)
 --------------------------------------
diff --git a/src/test/java/org/springframework/hateoas/support/ChangelogCreator.java b/src/test/java/org/springframework/hateoas/support/ChangelogCreator.java
index b7aad162..7b6f6ddc 100644
--- a/src/test/java/org/springframework/hateoas/support/ChangelogCreator.java
+++ b/src/test/java/org/springframework/hateoas/support/ChangelogCreator.java
@@ -38,7 +38,7 @@ import com.jayway.jsonpath.JsonPath;
  */
 class ChangelogCreator {
 
-	private static final int MILESTONE_ID = 66;
+	private static final int MILESTONE_ID = 64;
 	private static final String URI_TEMPLATE = "https://api.github.com/repos/spring-projects/spring-hateoas/issues?milestone={id}&state=closed";
 
 	public static void main(String... args) {