Prepare for 0.4.0 release.

Author: mattbertolini

README.md

@@ -100,7 +100,7 @@ This library is my attempt to fill the gap I see in Spring MVC.
 ## Requirements
 
 * Java 8+
-* Spring MVC or Spring WebFlux (5.3.5+)   
+* Spring MVC or Spring WebFlux (5.3.8+)   
 
 ## Use
 

RELEASE_NOTES.md

@@ -1,5 +1,14 @@
 # Release Notes
 
+## 0.4.0
+Released 2021-06-20
+
+- New Spring Boot starter modules for both Web MVC and WebFlux implementations. Allows quick and easy use of the data 
+  binder in Spring Boot applications with no configuration.
+- Add basic support for Multipart request data in WebFlux.
+- Minimum supported Spring version: 5.3.8
+- Minimum supported Spring Boot version: 2.4.7
+
 ## 0.3.0
 Released 2021-03-24
 

build.gradle

@@ -27,7 +27,7 @@ subprojects {
     apply plugin: 'org.sonarqube'
 
     group 'com.mattbertolini'
-    version '0.4.0-SNAPSHOT'
+    version '0.4.0'
 
     sourceCompatibility = 1.8