diff --git a/pmml-model/src/main/java/org/jpmml/model/annotations/Since.java b/pmml-model/src/main/java/org/jpmml/model/annotations/Since.java
new file mode 100644
index 00000000..020bbd7e
--- /dev/null
+++ b/pmml-model/src/main/java/org/jpmml/model/annotations/Since.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2024 Villu Ruusmann
+ */
+package org.jpmml.model.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention (
+	value = RetentionPolicy.RUNTIME
+)
+@Target (
+	value = {ElementType.TYPE, ElementType.FIELD}
+)
+public @interface Since {
+
+	String value();
+}
\ No newline at end of file
diff --git a/pmml-model/src/main/schema/pmml.xjb b/pmml-model/src/main/schema/pmml.xjb
index 082c6d46..151886dc 100644
--- a/pmml-model/src/main/schema/pmml.xjb
+++ b/pmml-model/src/main/schema/pmml.xjb
@@ -92,6 +92,7 @@ Copyright (c) 2014 Villu Ruusmann
 		
 		<jaxb:bindings node="//xsd:element[@name='AnomalyDetectionModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.5.0")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -241,6 +242,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='AssociationModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -347,6 +349,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='BaselineModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -388,6 +391,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='BayesianNetworkModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -603,6 +607,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='ClusteringModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1140,6 +1145,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='GaussianProcessModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1289,6 +1295,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='GeneralRegressionModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1590,6 +1597,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='MiningModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1632,6 +1640,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='MiningField']/xsd:complexType/xsd:attribute[@name='invalidValueReplacement']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.8")</annox:annotateProperty>
 		</jaxb:bindings>
 
 		<jaxb:bindings node="//xsd:element[@name='MiningField']/xsd:complexType/xsd:attribute[@name='invalidValueTreatment']">
@@ -1718,6 +1727,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='NaiveBayesModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1758,6 +1768,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='NearestNeighborModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -1794,6 +1805,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='NeuralLayer']/xsd:complexType/xsd:attribute[@name='x-leakage']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.5.2")</annox:annotateProperty>
 			<jaxb:property
 				name="leakage"
 			/>
@@ -1837,6 +1849,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='NeuralNetwork']/xsd:complexType/xsd:attribute[@name='x-leakage']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.5.2")</annox:annotateProperty>
 			<jaxb:property
 				name="leakage"
 			/>
@@ -1844,6 +1857,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='NeuralNetwork']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -2129,6 +2143,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='OutputField']/xsd:complexType/xsd:attribute[@name='x-reportField']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.8")</annox:annotateProperty>
 			<jaxb:property
 				name="reportField"
 			/>
@@ -2288,6 +2303,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='PMML']/xsd:complexType/xsd:attribute[@name='x-baseVersion']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.3")</annox:annotateProperty>
 			<jaxb:property
 				name="baseVersion"
 			/>
@@ -2553,6 +2569,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='RegressionModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -2696,6 +2713,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='RuleSetModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -2735,6 +2753,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='Scorecard']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -2827,6 +2846,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='missingPredictionTreatment']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.4.3")</annox:annotateProperty>
 		</jaxb:bindings>
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='missingPredictionTreatment']/xsd:simpleType">
@@ -2838,6 +2858,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='missingThreshold']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.4.3")</annox:annotateProperty>
 		</jaxb:bindings>
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='multipleModelMethod']/xsd:simpleType">
@@ -2853,14 +2874,17 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='multipleModelMethod']/xsd:simpleType/xsd:restriction/xsd:enumeration[@value='weightedMedian']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.3.3")</annox:annotateEnumConstant>
 		</jaxb:bindings>
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='multipleModelMethod']/xsd:simpleType/xsd:restriction/xsd:enumeration[@value='weightedSum']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.3.3")</annox:annotateEnumConstant>
 		</jaxb:bindings>
 
 		<jaxb:bindings node="//xsd:element[@name='Segmentation']/xsd:complexType/xsd:attribute[@name='multipleModelMethod']/xsd:simpleType/xsd:restriction/xsd:enumeration[@value='x-multiModelChain']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.6.4")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="MULTI_MODEL_CHAIN"
 			/>
@@ -2949,6 +2973,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='SequenceModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -3154,6 +3179,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='SupportVectorMachineModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -3346,6 +3372,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='TextIndex']/xsd:complexType/xsd:attribute[@name='x-wordRE']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.5.10")</annox:annotateProperty>
 			<jaxb:property
 				name="wordRE"
 			/>
@@ -3364,6 +3391,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='TextIndexNormalization']/xsd:complexType/xsd:attribute[@name='x-wordRE']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.5.10")</annox:annotateProperty>
 			<jaxb:property
 				name="wordRE"
 			/>
@@ -3386,6 +3414,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='TextModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -3572,6 +3601,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='TimeSeriesModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -3685,6 +3715,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:element[@name='TreeModel']/xsd:complexType/xsd:attribute[@name='x-mathContext']">
 			<annox:annotateProperty>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateProperty>
+			<annox:annotateProperty>org.jpmml.model.annotations.Since("1.3.7")</annox:annotateProperty>
 			<jaxb:property
 				name="mathContext"
 			/>
@@ -3939,6 +3970,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateDaysSince[1990]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_DAYS_SINCE_1990"
 			/>
@@ -3946,6 +3978,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateDaysSince[2000]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_DAYS_SINCE_2000"
 			/>
@@ -3953,6 +3986,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateDaysSince[2010]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_DAYS_SINCE_2010"
 			/>
@@ -3960,6 +3994,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateDaysSince[2020]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_DAYS_SINCE_2020"
 			/>
@@ -3967,6 +4002,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateTimeSecondsSince[1990]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_TIME_SECONDS_SINCE_1990"
 			/>
@@ -3974,6 +4010,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateTimeSecondsSince[2000]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_TIME_SECONDS_SINCE_2000"
 			/>
@@ -3981,6 +4018,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateTimeSecondsSince[2010]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_TIME_SECONDS_SINCE_2010"
 			/>
@@ -3988,6 +4026,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='DATATYPE']/xsd:restriction/xsd:enumeration[@value='x-dateTimeSecondsSince[2020]']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.1")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="DATE_TIME_SECONDS_SINCE_2020"
 			/>
@@ -4046,6 +4085,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='MISSING-VALUE-TREATMENT-METHOD']/xsd:restriction/xsd:enumeration[@value='returnInvalid']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.PMML_4_4)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.4.2")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="RETURN_INVALID"
 			/>
@@ -4182,6 +4222,7 @@ Copyright (c) 2014 Villu Ruusmann
 
 		<jaxb:bindings node="//xsd:simpleType[@name='RESULT-FEATURE']/xsd:restriction/xsd:enumeration[@value='x-report']">
 			<annox:annotateEnumConstant>org.jpmml.model.annotations.Added(org.dmg.pmml.Version.XPMML)</annox:annotateEnumConstant>
+			<annox:annotateEnumConstant>org.jpmml.model.annotations.Since("1.3.8")</annox:annotateEnumConstant>
 			<jaxb:typesafeEnumMember
 				name="REPORT"
 			/>