diff --git a/CHANGELOG.md b/CHANGELOG.md
index 681fb82..7ce13c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,20 @@
+## 2.2
+
+### August 16, 2024
+
+CHANGES:
+
+* Improved toString method to align with the standard-compliant asString implementation.
+* Updated fromDate method to accept null as input when using a custom calendar, representing a missing value.
+
+IMPROVEMENTS:
+
+* N/A
+
+BUG FIXES:
+
+* N/A
+
 ## 2.1
 
 ### June 12, 2024
diff --git a/README.md b/README.md
index fa0be61..2c50133 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ This driver is compatible with JVM version 8 or higher.
 ## Getting Started
 
 - The driver is published to Maven Central. Make sure that you have added `mavenCentral()` to the repositories section in your gradle build file.
-- Add `implementation group: 'org.polypheny', name: 'polypheny-jdbc-driver', version: '2.1'` .
+- Add `implementation group: 'org.polypheny', name: 'polypheny-jdbc-driver', version: '2.2'` .
 - Optionally: load the driver `org.polypheny.jdbc.PolyphenyDriver`, for example via
   ```
   Class.forName( "org.polypheny.jdbc.PolyphenyDriver" );
diff --git a/build.gradle b/build.gradle
index ad0a7a3..9ba2092 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ description = "A standards-compliant JDBC driver for Polypheny."
 
 def versionMajor = 2
 def versionMinor = 2
-def versionQualifier = "SNAPSHOT"
+def versionQualifier = ""
 version = versionMajor + "." + versionMinor + (versionQualifier != '' ? "-" + versionQualifier : '')