diff --git a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/CombinedFieldsQuery.g.cs b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/CombinedFieldsQuery.g.cs
index ef6ebe803b0..5cf5b7e8f5f 100644
--- a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/CombinedFieldsQuery.g.cs
+++ b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/CombinedFieldsQuery.g.cs
@@ -41,7 +41,7 @@ public sealed partial class CombinedFieldsQuery : Query
 
 	[JsonInclude]
 	[JsonPropertyName("fields")]
-	public IList<Elastic.Clients.Elasticsearch.Field> Fields { get; set; }
+	public Fields Fields { get; set; }
 
 	[JsonInclude]
 	[JsonPropertyName("minimum_should_match")]
@@ -75,7 +75,7 @@ public CombinedFieldsQueryDescriptor() : base()
 
 	private float? BoostValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field> FieldsValue { get; set; }
+	private Fields FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.MinimumShouldMatch? MinimumShouldMatchValue { get; set; }
 
@@ -103,7 +103,7 @@ public CombinedFieldsQueryDescriptor<TDocument> Boost(float? boost)
 		return Self;
 	}
 
-	public CombinedFieldsQueryDescriptor<TDocument> Fields(IList<Elastic.Clients.Elasticsearch.Field> fields)
+	public CombinedFieldsQueryDescriptor<TDocument> Fields(Fields fields)
 	{
 		FieldsValue = fields;
 		return Self;
@@ -193,7 +193,7 @@ public CombinedFieldsQueryDescriptor() : base()
 
 	private float? BoostValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field> FieldsValue { get; set; }
+	private Fields FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.MinimumShouldMatch? MinimumShouldMatchValue { get; set; }
 
@@ -221,7 +221,7 @@ public CombinedFieldsQueryDescriptor Boost(float? boost)
 		return Self;
 	}
 
-	public CombinedFieldsQueryDescriptor Fields(IList<Elastic.Clients.Elasticsearch.Field> fields)
+	public CombinedFieldsQueryDescriptor Fields(Fields fields)
 	{
 		FieldsValue = fields;
 		return Self;
diff --git a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/LikeDocument.g.cs b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/LikeDocument.g.cs
index e391a9b2b0c..3c41b57c6e8 100644
--- a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/LikeDocument.g.cs
+++ b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/LikeDocument.g.cs
@@ -41,7 +41,7 @@ public sealed partial class LikeDocument
 
 	[JsonInclude]
 	[JsonPropertyName("fields")]
-	public IList<Elastic.Clients.Elasticsearch.Field>? Fields { get; set; }
+	public Fields? Fields { get; set; }
 
 	[JsonInclude]
 	[JsonPropertyName("per_field_analyzer")]
@@ -73,7 +73,7 @@ public LikeDocumentDescriptor() : base()
 
 	private object? DocValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Dictionary<Elastic.Clients.Elasticsearch.Field, string>? PerFieldAnalyzerValue { get; set; }
 
@@ -101,7 +101,7 @@ public LikeDocumentDescriptor<TDocument> Doc(object? doc)
 		return Self;
 	}
 
-	public LikeDocumentDescriptor<TDocument> Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public LikeDocumentDescriptor<TDocument> Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
@@ -193,7 +193,7 @@ public LikeDocumentDescriptor() : base()
 
 	private object? DocValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Dictionary<Elastic.Clients.Elasticsearch.Field, string>? PerFieldAnalyzerValue { get; set; }
 
@@ -221,7 +221,7 @@ public LikeDocumentDescriptor Doc(object? doc)
 		return Self;
 	}
 
-	public LikeDocumentDescriptor Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public LikeDocumentDescriptor Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
diff --git a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/MoreLikeThisQuery.g.cs b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/MoreLikeThisQuery.g.cs
index b88ef9ebe01..04ac1ef34a7 100644
--- a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/MoreLikeThisQuery.g.cs
+++ b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/MoreLikeThisQuery.g.cs
@@ -49,7 +49,7 @@ public sealed partial class MoreLikeThisQuery : Query
 
 	[JsonInclude]
 	[JsonPropertyName("fields")]
-	public IList<Elastic.Clients.Elasticsearch.Field>? Fields { get; set; }
+	public Fields? Fields { get; set; }
 
 	[JsonInclude]
 	[JsonPropertyName("include")]
@@ -132,7 +132,7 @@ public MoreLikeThisQueryDescriptor() : base()
 
 	private bool? FailOnUnsupportedFieldValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private bool? IncludeValue { get; set; }
 
@@ -194,7 +194,7 @@ public MoreLikeThisQueryDescriptor<TDocument> FailOnUnsupportedField(bool? failO
 		return Self;
 	}
 
-	public MoreLikeThisQueryDescriptor<TDocument> Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public MoreLikeThisQueryDescriptor<TDocument> Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
@@ -436,7 +436,7 @@ public MoreLikeThisQueryDescriptor() : base()
 
 	private bool? FailOnUnsupportedFieldValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private bool? IncludeValue { get; set; }
 
@@ -498,7 +498,7 @@ public MoreLikeThisQueryDescriptor FailOnUnsupportedField(bool? failOnUnsupporte
 		return Self;
 	}
 
-	public MoreLikeThisQueryDescriptor Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public MoreLikeThisQueryDescriptor Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
diff --git a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/QueryStringQuery.g.cs b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/QueryStringQuery.g.cs
index dfa5336be5b..6f8d9492c78 100644
--- a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/QueryStringQuery.g.cs
+++ b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/QueryStringQuery.g.cs
@@ -69,7 +69,7 @@ public sealed partial class QueryStringQuery : Query
 
 	[JsonInclude]
 	[JsonPropertyName("fields")]
-	public IList<Elastic.Clients.Elasticsearch.Field>? Fields { get; set; }
+	public Fields? Fields { get; set; }
 
 	[JsonInclude]
 	[JsonPropertyName("fuzziness")]
@@ -165,7 +165,7 @@ public QueryStringQueryDescriptor() : base()
 
 	private bool? EscapeValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.Fuzziness? FuzzinessValue { get; set; }
 
@@ -265,7 +265,7 @@ public QueryStringQueryDescriptor<TDocument> Escape(bool? escape = true)
 		return Self;
 	}
 
-	public QueryStringQueryDescriptor<TDocument> Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public QueryStringQueryDescriptor<TDocument> Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
@@ -559,7 +559,7 @@ public QueryStringQueryDescriptor() : base()
 
 	private bool? EscapeValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.Fuzziness? FuzzinessValue { get; set; }
 
@@ -665,7 +665,7 @@ public QueryStringQueryDescriptor Escape(bool? escape = true)
 		return Self;
 	}
 
-	public QueryStringQueryDescriptor Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public QueryStringQueryDescriptor Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
diff --git a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/SimpleQueryStringQuery.g.cs b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/SimpleQueryStringQuery.g.cs
index bed8508250d..9db45bba9f2 100644
--- a/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/SimpleQueryStringQuery.g.cs
+++ b/src/Elastic.Clients.Elasticsearch/_Generated/Types/QueryDsl/SimpleQueryStringQuery.g.cs
@@ -53,7 +53,7 @@ public sealed partial class SimpleQueryStringQuery : Query
 
 	[JsonInclude]
 	[JsonPropertyName("fields")]
-	public IList<Elastic.Clients.Elasticsearch.Field>? Fields { get; set; }
+	public Fields? Fields { get; set; }
 
 	[JsonInclude]
 	[JsonPropertyName("flags")]
@@ -109,7 +109,7 @@ public SimpleQueryStringQueryDescriptor() : base()
 
 	private Elastic.Clients.Elasticsearch.QueryDsl.Operator? DefaultOperatorValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.QueryDsl.SimpleQueryStringFlags? FlagsValue { get; set; }
 
@@ -163,7 +163,7 @@ public SimpleQueryStringQueryDescriptor<TDocument> DefaultOperator(Elastic.Clien
 		return Self;
 	}
 
-	public SimpleQueryStringQueryDescriptor<TDocument> Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public SimpleQueryStringQueryDescriptor<TDocument> Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;
@@ -329,7 +329,7 @@ public SimpleQueryStringQueryDescriptor() : base()
 
 	private Elastic.Clients.Elasticsearch.QueryDsl.Operator? DefaultOperatorValue { get; set; }
 
-	private IList<Elastic.Clients.Elasticsearch.Field>? FieldsValue { get; set; }
+	private Fields? FieldsValue { get; set; }
 
 	private Elastic.Clients.Elasticsearch.QueryDsl.SimpleQueryStringFlags? FlagsValue { get; set; }
 
@@ -383,7 +383,7 @@ public SimpleQueryStringQueryDescriptor DefaultOperator(Elastic.Clients.Elastics
 		return Self;
 	}
 
-	public SimpleQueryStringQueryDescriptor Fields(IList<Elastic.Clients.Elasticsearch.Field>? fields)
+	public SimpleQueryStringQueryDescriptor Fields(Fields? fields)
 	{
 		FieldsValue = fields;
 		return Self;