diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b5d9f32..bb5069b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All Valiktor releases
 
+## :rocket: 0.12.0
+> Published 28 Jun 2020
+
+### :tada: Features
+
+* [#44](https://github.com/valiktor/valiktor/pull/44) Added support for Map properties
+
 ## :rocket: 0.11.0
 > Published 06 Apr 2020
 
diff --git a/README.md b/README.md
index 63f80e60..3acfeeab 100644
--- a/README.md
+++ b/README.md
@@ -15,13 +15,13 @@
 ![Gradle](docs/gradle.png)
 
 ```groovy
-implementation 'org.valiktor:valiktor-core:0.11.0'
+implementation 'org.valiktor:valiktor-core:0.12.0'
 ```
 
 ![Gradle](docs/gradle.png) (Kotlin DSL)
 
 ```kotlin
-implementation("org.valiktor:valiktor-core:0.11.0")
+implementation("org.valiktor:valiktor-core:0.12.0")
 ```
 
 ![Maven](docs/maven.png) 
@@ -30,7 +30,7 @@ implementation("org.valiktor:valiktor-core:0.11.0")
 <dependency>
   <groupId>org.valiktor</groupId>
   <artifactId>valiktor-core</artifactId>
-  <version>0.11.0</version>
+  <version>0.12.0</version>
 </dependency>
 ```
 
@@ -806,9 +806,9 @@ There are a number of modules in Valiktor, here is a quick overview:
 
 ### valiktor-core
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-core/0.12.0/sources)
 
 The main library providing the validation engine, including:
 
@@ -819,9 +819,9 @@ The main library providing the validation engine, including:
 
 ### valiktor-javamoney
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.11.0/jar) 
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.11.0/javadoc) 
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.12.0/jar) 
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.12.0/javadoc) 
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javamoney/0.12.0/sources)
 
 This module provides support for JavaMoney API types, including: 
 
@@ -830,9 +830,9 @@ This module provides support for JavaMoney API types, including:
 
 ### valiktor-javatime
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-javatime/0.12.0/sources)
 
 This module provides support for JavaTime API types, including: 
 
@@ -841,9 +841,9 @@ This module provides support for JavaTime API types, including:
 
 ### valiktor-jodamoney
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.11.0/jar) 
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.11.0/javadoc) 
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.12.0/jar) 
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.12.0/javadoc) 
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodamoney/0.12.0/sources)
 
 This module provides support for Joda-Money API types, including: 
 
@@ -852,9 +852,9 @@ This module provides support for Joda-Money API types, including:
 
 ### valiktor-jodatime
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-jodatime/0.12.0/sources)
 
 This module provides support for Joda-Time API types, including: 
 
@@ -863,9 +863,9 @@ This module provides support for Joda-Time API types, including:
 
 ### valiktor-spring
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring/0.12.0/sources)
 
 Spring WebMvc and WebFlux integration, including:
 
@@ -875,9 +875,9 @@ Spring WebMvc and WebFlux integration, including:
 
 ### valiktor-spring-boot-autoconfigure
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-autoconfigure/0.12.0/sources)
 
 Provides auto-configuration support for [valiktor-spring](#valiktor-spring), including:
  
@@ -887,17 +887,17 @@ Provides auto-configuration support for [valiktor-spring](#valiktor-spring), inc
 
 ### valiktor-spring-boot-starter
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-spring-boot-starter/0.12.0/sources)
 
 Spring Boot Starter library including the modules [valiktor-spring](#valiktor-spring) and [valiktor-spring-boot-autoconfigure](#valiktor-spring-boot-autoconfigure)
 
 ### valiktor-test
 
-[![jar](https://img.shields.io/badge/jar-v0.11.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.11.0/jar)
-[![javadoc](https://img.shields.io/badge/javadoc-v0.11.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.11.0/javadoc)
-[![sources](https://img.shields.io/badge/sources-v0.11.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.11.0/sources)
+[![jar](https://img.shields.io/badge/jar-v0.12.0-green.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.12.0/jar)
+[![javadoc](https://img.shields.io/badge/javadoc-v0.12.0-blue.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.12.0/javadoc)
+[![sources](https://img.shields.io/badge/sources-v0.12.0-yellow.svg)](https://search.maven.org/artifact/org.valiktor/valiktor-test/0.12.0/sources)
 
 This module provides fluent assertions for validation tests
 
diff --git a/gradle.properties b/gradle.properties
index 9d7233bf..abdf6bfb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-version=0.11.0
+version=0.12.0
 
 signing.keyId=
 signing.password=