diff -r 000000000000 -r fb9019fb1bf7 src/net/fortuna/ical4j/model/property/Version.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/net/fortuna/ical4j/model/property/Version.java	Tue Feb 10 18:12:00 2015 +0100
@@ -0,0 +1,198 @@
+/**
+ * Copyright (c) 2012, Ben Fortuna
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  o Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ *  o Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ *  o Neither the name of Ben Fortuna nor the names of any other contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.fortuna.ical4j.model.property;
+
+import net.fortuna.ical4j.model.ParameterList;
+import net.fortuna.ical4j.model.Property;
+import net.fortuna.ical4j.model.PropertyFactoryImpl;
+import net.fortuna.ical4j.model.ValidationException;
+
+/**
+ * $Id$
+ *
+ * Created: [Apr 6, 2004]
+ *
+ * Defines a VERSION iCalendar property. When creating a new calendar you should always add a version property with
+ * value "2.0". There is actually a constant defined in the Version class for this. e.g:
+ * <code>    Calendar calendar = new Calendar();</code>
+ * <code>    calendar.getProperties().add(Version.VERSION_2_0);</code>
+ * @author Ben Fortuna
+ */
+public class Version extends Property {
+
+    private static final long serialVersionUID = 8872508067309087704L;
+
+    /**
+     * iCalendar version 2.0.
+     */
+    public static final Version VERSION_2_0 = new ImmutableVersion("2.0");
+
+    /**
+     * @author Ben Fortuna An immutable instance of Version.
+     */
+    private static final class ImmutableVersion extends Version {
+
+        private static final long serialVersionUID = -5040679357859594835L;
+
+        private ImmutableVersion(final String value) {
+            super(new ParameterList(true), value);
+        }
+
+        public void setValue(final String aValue) {
+            throw new UnsupportedOperationException(
+                    "Cannot modify constant instances");
+        }
+
+        public void setMaxVersion(final String maxVersion) {
+            throw new UnsupportedOperationException(
+                    "Cannot modify constant instances");
+        }
+
+        public void setMinVersion(final String minVersion) {
+            throw new UnsupportedOperationException(
+                    "Cannot modify constant instances");
+        }
+    }
+
+    private String minVersion;
+
+    private String maxVersion;
+
+    /**
+     * Default constructor.
+     */
+    public Version() {
+        super(VERSION, PropertyFactoryImpl.getInstance());
+    }
+
+    /**
+     * @param aList a list of parameters for this component
+     * @param aValue a value string for this component
+     */
+    public Version(final ParameterList aList, final String aValue) {
+        super(VERSION, aList, PropertyFactoryImpl.getInstance());
+        if (aValue.indexOf(';') >= 0) {
+            this.minVersion = aValue.substring(0, aValue.indexOf(';') - 1);
+            this.maxVersion = aValue.substring(aValue.indexOf(';'));
+        }
+        else {
+            this.maxVersion = aValue;
+        }
+    }
+
+    /**
+     * @param minVersion a string representation of the minimum version
+     * @param maxVersion a string representation of the maximum version
+     */
+    public Version(final String minVersion, final String maxVersion) {
+        super(VERSION, PropertyFactoryImpl.getInstance());
+        this.minVersion = minVersion;
+        this.maxVersion = maxVersion;
+    }
+
+    /**
+     * @param aList a list of parameters for this component
+     * @param aVersion1 a string representation of the minimum version
+     * @param aVersion2 a string representation of the maximum version
+     */
+    public Version(final ParameterList aList, final String aVersion1,
+            final String aVersion2) {
+        super(VERSION, aList, PropertyFactoryImpl.getInstance());
+        minVersion = aVersion1;
+        maxVersion = aVersion2;
+    }
+
+    /**
+     * @return Returns the maxVersion.
+     */
+    public final String getMaxVersion() {
+        return maxVersion;
+    }
+
+    /**
+     * @return Returns the minVersion.
+     */
+    public final String getMinVersion() {
+        return minVersion;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public void setValue(final String aValue) {
+        if (aValue.indexOf(';') >= 0) {
+            this.minVersion = aValue.substring(0, aValue.indexOf(';') - 1);
+            this.maxVersion = aValue.substring(aValue.indexOf(';'));
+        }
+        else {
+            this.maxVersion = aValue;
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public final String getValue() {
+        final StringBuffer b = new StringBuffer();
+        if (getMinVersion() != null) {
+            b.append(getMinVersion());
+            if (getMaxVersion() != null) {
+                b.append(';');
+            }
+        }
+        if (getMaxVersion() != null) {
+            b.append(getMaxVersion());
+        }
+        return b.toString();
+    }
+
+    /**
+     * @param maxVersion The maxVersion to set.
+     */
+    public void setMaxVersion(final String maxVersion) {
+        this.maxVersion = maxVersion;
+    }
+
+    /**
+     * @param minVersion The minVersion to set.
+     */
+    public void setMinVersion(final String minVersion) {
+        this.minVersion = minVersion;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public final void validate() throws ValidationException {
+        // TODO: Auto-generated method stub
+    }
+}