prepare spec for the release,
fix cp year,
add missing items to the changelog

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>

spec/pom.xml

diff --git a/spec/pom.xml b/spec/pom.xml
index aca650a..911179d 100644
--- a/spec/pom.xml
+++ b/spec/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright (c) 2017, 2020 Oracle and/or its affiliates. All rights reserved.
+    Copyright (c) 2017, 2022 Oracle and/or its affiliates. All rights reserved.
 
     This program and the accompanying materials are made available under the
     terms of the Eclipse Public License v. 2.0, which is available at
@@ -28,14 +28,14 @@
     <groupId>jakarta.xml.bind</groupId>
     <artifactId>xml-binding-spec</artifactId>
     <packaging>pom</packaging>
-    <version>4.0-SNAPSHOT</version>
+    <version>4.0</version>
     <name>Jakarta XML Binding Specification</name>
 
     <properties>
         <site.output.dir>${project.build.directory}/staging</site.output.dir>
         <maven.site.skip>true</maven.site.skip>
-        <asciidoctor.maven.plugin.version>2.0.0</asciidoctor.maven.plugin.version>
-        <asciidoctorj.pdf.version>1.5.3</asciidoctorj.pdf.version>
+        <asciidoctor.maven.plugin.version>2.2.0</asciidoctor.maven.plugin.version>
+        <asciidoctorj.pdf.version>1.6.2</asciidoctorj.pdf.version>
         <spec.name>jakarta-${project.artifactId}-${project.version}</spec.name>
         <!-- status: DRAFT, BETA, etc., or blank for final -->
         <status>DRAFT</status>
@@ -62,7 +62,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-enforcer-plugin</artifactId>
-                <version>3.0.0-M3</version>
+                <version>3.0.0</version>
                 <executions>
                     <execution>
                         <id>enforce-versions</id>
@@ -72,8 +72,8 @@
                         <configuration>
                             <rules>
                                 <requireJavaVersion>
-                                    <version>(,1.9),[11,)</version>
-                                    <message>You need JDK8 or JDK 11 and newer</message>
+                                    <version>[11,)</version>
+                                    <message>You need Java SE 11 or newer</message>
                                 </requireJavaVersion>
                             </rules>
                         </configuration>

spec/src/main/asciidoc/appI-changelog.adoc

diff --git a/spec/src/main/asciidoc/appI-changelog.adoc b/spec/src/main/asciidoc/appI-changelog.adoc
index 0245fe9..5e88983 100644
--- a/spec/src/main/asciidoc/appI-changelog.adoc
+++ b/spec/src/main/asciidoc/appI-changelog.adoc
@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2020, 2021 Contributors to the Eclipse Foundation
+// Copyright (c) 2020, 2022 Contributors to the Eclipse Foundation
 //
 
 [appendix]
@@ -14,6 +14,7 @@
 through `jaxb.properties` file, `jakarta.xml.bind.context.factory` and
 `jakarta.xml.bind.JAXBContext` properties and `/META-INF/services/jakarta.xml.bind.JAXBContext`
 resource file
+* dropped requirement on compatibility with JAXB 1.0
 
 === Changes in Version 3
 

spec/src/main/asciidoc/license-efsl.adoc

diff --git a/spec/src/main/asciidoc/license-efsl.adoc b/spec/src/main/asciidoc/license-efsl.adoc
index 811816e..f03046e 100644
--- a/spec/src/main/asciidoc/license-efsl.adoc
+++ b/spec/src/main/asciidoc/license-efsl.adoc
@@ -14,7 +14,7 @@
 Release: {revdate}
 ....
 
-Copyright (c) 2019, 2021 Eclipse Foundation.
+Copyright (c) 2019, 2022 Eclipse Foundation.
 
 === Eclipse Foundation Specification License