diff --git a/CHANGELOG b/CHANGELOG
index 9bf3208..3c7c9c9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+TRANSIP API V5.18
+NEW
+- Added functionality to convert vps backups to snapshots.
+
 TRANSIP API V5.17
 NEW
 - Added functionality to get default DNS Entries and Nameservers by domain name.
diff --git a/Transip/ColocationService.php b/Transip/ColocationService.php
index 655fdd6..efc4bdb 100644
--- a/Transip/ColocationService.php
+++ b/Transip/ColocationService.php
@@ -16,7 +16,7 @@ class Transip_ColocationService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'ColocationService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/Transip/DnsService.php b/Transip/DnsService.php
index 5511a1a..37bea19 100644
--- a/Transip/DnsService.php
+++ b/Transip/DnsService.php
@@ -17,7 +17,7 @@ class Transip_DnsService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'DnsService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
@@ -225,6 +225,7 @@ public static function getDnsSecEntries($domainName)
 	 *
 	 * @param string $domainName 
 	 * @param Transip_DnsSecEntry[] $dnssecKeyEntrySet 
+	 * @throws ApiException
 	 * @example examples/DnsService-setDnsSecEntries.php
 	 */
 	public static function setDnsSecEntries($domainName, $dnssecKeyEntrySet)
diff --git a/Transip/DomainService.php b/Transip/DomainService.php
index 1a435d7..1dbdb2e 100644
--- a/Transip/DomainService.php
+++ b/Transip/DomainService.php
@@ -23,7 +23,7 @@ class Transip_DomainService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'DomainService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/Transip/ForwardService.php b/Transip/ForwardService.php
index 3c0179d..700e765 100644
--- a/Transip/ForwardService.php
+++ b/Transip/ForwardService.php
@@ -16,7 +16,7 @@ class Transip_ForwardService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'ForwardService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/Transip/HaipService.php b/Transip/HaipService.php
index 6505698..1c8fb2b 100644
--- a/Transip/HaipService.php
+++ b/Transip/HaipService.php
@@ -17,7 +17,7 @@ class Transip_HaipService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'HaipService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/Transip/PropositionService.php b/Transip/PropositionService.php
index 6a4647c..8a5784a 100644
--- a/Transip/PropositionService.php
+++ b/Transip/PropositionService.php
@@ -15,7 +15,7 @@ class Transip_PropositionService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'PropositionService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/Transip/VpsService.php b/Transip/VpsService.php
index da5d227..6021f4f 100644
--- a/Transip/VpsService.php
+++ b/Transip/VpsService.php
@@ -22,7 +22,7 @@ class Transip_VpsService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'VpsService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
@@ -697,6 +697,19 @@ public static function getAvailableAvailabilityZones()
 	{
 		return self::_getSoapClient(array_merge(array(), array('__method' => 'getAvailableAvailabilityZones')))->getAvailableAvailabilityZones();
 	}
+
+	/**
+	 * Convert a backup to a Snapshot
+	 *
+	 * @param string $vpsName The vps name
+	 * @param string $description The snapshot description
+	 * @param int $diskBackupId The selected backup id
+	 * @throws ApiException on error
+	 */
+	public static function convertVpsBackupToSnapshot($vpsName, $description, $diskBackupId)
+	{
+		return self::_getSoapClient(array_merge(array($vpsName, $description, $diskBackupId), array('__method' => 'convertVpsBackupToSnapshot')))->convertVpsBackupToSnapshot($vpsName, $description, $diskBackupId);
+	}
 }
 
 ?>
diff --git a/Transip/WebhostingService.php b/Transip/WebhostingService.php
index 95a7f7d..c5b478d 100644
--- a/Transip/WebhostingService.php
+++ b/Transip/WebhostingService.php
@@ -22,7 +22,7 @@ class Transip_WebhostingService
 	/** The SOAP service that corresponds with this class. */
 	const SERVICE = 'WebhostingService';
 	/** The API version. */
-	const API_VERSION = '5.17';
+	const API_VERSION = '5.18';
 	/** @var SoapClient  The SoapClient used to perform the SOAP calls. */
 	protected static $_soapClient = null;
 
diff --git a/examples/VpsService-convertBackupToSnapshot.php b/examples/VpsService-convertBackupToSnapshot.php
new file mode 100644
index 0000000..6bf343d
--- /dev/null
+++ b/examples/VpsService-convertBackupToSnapshot.php
@@ -0,0 +1,29 @@
+<?php
+
+/**
+ * This example converts a backup to a snapshot for a given vps
+ *
+ * @copyright Copyright 2019 TransIP BV
+ * @author TransIP BV <support@transip.nl>
+ */
+
+// Include vpsservice
+require_once('Transip/VpsService.php');
+
+try {
+    $vpsName             = 'example-vps';
+    $snapshotDescription = 'My new snapshot';
+
+    // Get disk backups for given vps
+    $diskBackups         = Transip_VpsService::getVpsBackupsByVps($vpsName);
+    // print_r($vpsBackups);
+    $vpsDiskBackupId     = $diskBackups[0]->id;
+
+    // Convert vps backup to a snapshot
+    Transip_VpsService::convertVpsBackupToSnapshot($vpsName, $snapshotDescription, $vpsDiskBackupId);
+    echo 'Starting backup to snapshot conversion';
+} catch (SoapFault $f) {
+    // It is possible that an error occurs when connecting to the TransIP Soap API,
+    // those errors will be thrown as a SoapFault exception.
+    echo 'An error occurred: ' . $f->getMessage(), PHP_EOL;
+}