diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 62ee1f1e6b..3c499d9c44 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -106572,6 +106572,11 @@
                 "description": "If `false`, the processor does not append values already present in the field.",
                 "default": true,
                 "type": "boolean"
+              },
+              "ignore_empty_values": {
+                "description": "If `true`, the processor will skip empty values from the source (e.g. empty strings, and null values),\nrather than appending them to the field..",
+                "default": false,
+                "type": "boolean"
               }
             },
             "required": [
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 54ac3392c0..09e65fec3a 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -70437,6 +70437,11 @@
                 "description": "If `false`, the processor does not append values already present in the field.",
                 "default": true,
                 "type": "boolean"
+              },
+              "ignore_empty_values": {
+                "description": "If `true`, the processor will skip empty values from the source (e.g. empty strings, and null values),\nrather than appending them to the field..",
+                "default": false,
+                "type": "boolean"
               }
             },
             "required": [
diff --git a/output/schema/schema.json b/output/schema/schema.json
index d6a4377a1d..933bfcde32 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -189791,9 +189791,22 @@
               "namespace": "_builtins"
             }
           }
+        },
+        {
+          "description": "If `true`, the processor will skip empty values from the source (e.g. empty strings, and null values),\nrather than appending them to the field.",
+          "name": "ignore_empty_values",
+          "required": false,
+          "serverDefault": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L334-L360"
+      "specLocation": "ingest/_types/Processors.ts#L334-L366"
     },
     {
       "kind": "interface",
@@ -189913,7 +189926,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L362-L403"
+      "specLocation": "ingest/_types/Processors.ts#L368-L409"
     },
     {
       "kind": "interface",
@@ -189967,7 +189980,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L572-L588"
+      "specLocation": "ingest/_types/Processors.ts#L578-L594"
     },
     {
       "kind": "interface",
@@ -190047,7 +190060,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L590-L616"
+      "specLocation": "ingest/_types/Processors.ts#L596-L622"
     },
     {
       "kind": "interface",
@@ -190124,7 +190137,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L618-L641"
+      "specLocation": "ingest/_types/Processors.ts#L624-L647"
     },
     {
       "kind": "interface",
@@ -190283,7 +190296,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L643-L704"
+      "specLocation": "ingest/_types/Processors.ts#L649-L710"
     },
     {
       "kind": "interface",
@@ -190349,7 +190362,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L717-L737"
+      "specLocation": "ingest/_types/Processors.ts#L723-L743"
     },
     {
       "kind": "enum",
@@ -190383,7 +190396,7 @@
         "name": "ConvertType",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L706-L715"
+      "specLocation": "ingest/_types/Processors.ts#L712-L721"
     },
     {
       "kind": "interface",
@@ -190481,7 +190494,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L739-L772"
+      "specLocation": "ingest/_types/Processors.ts#L745-L778"
     },
     {
       "kind": "interface",
@@ -190706,7 +190719,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L774-L812"
+      "specLocation": "ingest/_types/Processors.ts#L780-L818"
     },
     {
       "kind": "interface",
@@ -190801,7 +190814,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L814-L847"
+      "specLocation": "ingest/_types/Processors.ts#L820-L853"
     },
     {
       "kind": "interface",
@@ -190867,7 +190880,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L849-L868"
+      "specLocation": "ingest/_types/Processors.ts#L855-L874"
     },
     {
       "kind": "interface",
@@ -191102,7 +191115,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L870-L888"
+      "specLocation": "ingest/_types/Processors.ts#L876-L894"
     },
     {
       "kind": "interface",
@@ -191117,7 +191130,7 @@
         "namespace": "ingest._types"
       },
       "properties": [],
-      "specLocation": "ingest/_types/Processors.ts#L890-L890"
+      "specLocation": "ingest/_types/Processors.ts#L896-L896"
     },
     {
       "kind": "interface",
@@ -191221,7 +191234,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L892-L931"
+      "specLocation": "ingest/_types/Processors.ts#L898-L937"
     },
     {
       "kind": "interface",
@@ -191249,7 +191262,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L933-L939"
+      "specLocation": "ingest/_types/Processors.ts#L939-L945"
     },
     {
       "kind": "enum",
@@ -191295,7 +191308,7 @@
         "name": "FingerprintDigest",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L941-L947"
+      "specLocation": "ingest/_types/Processors.ts#L947-L953"
     },
     {
       "kind": "interface",
@@ -191374,7 +191387,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L949-L977"
+      "specLocation": "ingest/_types/Processors.ts#L955-L983"
     },
     {
       "kind": "interface",
@@ -191427,7 +191440,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L979-L993"
+      "specLocation": "ingest/_types/Processors.ts#L985-L999"
     },
     {
       "kind": "interface",
@@ -191554,7 +191567,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L405-L446"
+      "specLocation": "ingest/_types/Processors.ts#L411-L452"
     },
     {
       "kind": "enum",
@@ -191570,7 +191583,7 @@
         "name": "GeoGridTargetFormat",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L454-L457"
+      "specLocation": "ingest/_types/Processors.ts#L460-L463"
     },
     {
       "kind": "enum",
@@ -191589,7 +191602,7 @@
         "name": "GeoGridTileType",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L448-L452"
+      "specLocation": "ingest/_types/Processors.ts#L454-L458"
     },
     {
       "kind": "interface",
@@ -191696,7 +191709,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L459-L493"
+      "specLocation": "ingest/_types/Processors.ts#L465-L499"
     },
     {
       "kind": "interface",
@@ -191801,7 +191814,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L995-L1026"
+      "specLocation": "ingest/_types/Processors.ts#L1001-L1032"
     },
     {
       "kind": "interface",
@@ -191879,7 +191892,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1028-L1052"
+      "specLocation": "ingest/_types/Processors.ts#L1034-L1058"
     },
     {
       "kind": "interface",
@@ -191933,7 +191946,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1054-L1070"
+      "specLocation": "ingest/_types/Processors.ts#L1060-L1076"
     },
     {
       "kind": "interface",
@@ -191967,7 +191980,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1111-L1123",
+      "specLocation": "ingest/_types/Processors.ts#L1117-L1129",
       "variants": {
         "kind": "container"
       }
@@ -192044,7 +192057,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1138-L1164"
+      "specLocation": "ingest/_types/Processors.ts#L1144-L1170"
     },
     {
       "kind": "interface",
@@ -192080,7 +192093,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1125-L1136"
+      "specLocation": "ingest/_types/Processors.ts#L1131-L1142"
     },
     {
       "kind": "interface",
@@ -192191,7 +192204,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1072-L1104"
+      "specLocation": "ingest/_types/Processors.ts#L1078-L1110"
     },
     {
       "kind": "interface",
@@ -192272,7 +192285,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1106-L1109"
+      "specLocation": "ingest/_types/Processors.ts#L1112-L1115"
     },
     {
       "kind": "interface",
@@ -192379,7 +192392,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L495-L529"
+      "specLocation": "ingest/_types/Processors.ts#L501-L535"
     },
     {
       "kind": "interface",
@@ -192441,7 +192454,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1166-L1181"
+      "specLocation": "ingest/_types/Processors.ts#L1172-L1187"
     },
     {
       "kind": "interface",
@@ -192520,7 +192533,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1183-L1212"
+      "specLocation": "ingest/_types/Processors.ts#L1189-L1218"
     },
     {
       "kind": "enum",
@@ -192538,7 +192551,7 @@
         "name": "JsonProcessorConflictStrategy",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L1214-L1219"
+      "specLocation": "ingest/_types/Processors.ts#L1220-L1225"
     },
     {
       "kind": "interface",
@@ -192695,7 +192708,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1221-L1273"
+      "specLocation": "ingest/_types/Processors.ts#L1227-L1279"
     },
     {
       "kind": "interface",
@@ -192770,7 +192783,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1275-L1291"
+      "specLocation": "ingest/_types/Processors.ts#L1281-L1297"
     },
     {
       "kind": "interface",
@@ -192886,7 +192899,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1293-L1327"
+      "specLocation": "ingest/_types/Processors.ts#L1299-L1333"
     },
     {
       "kind": "interface",
@@ -193174,7 +193187,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1329-L1340"
+      "specLocation": "ingest/_types/Processors.ts#L1335-L1346"
     },
     {
       "kind": "interface",
@@ -194171,7 +194184,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1342-L1383"
+      "specLocation": "ingest/_types/Processors.ts#L1348-L1389"
     },
     {
       "kind": "interface",
@@ -194224,7 +194237,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1385-L1401"
+      "specLocation": "ingest/_types/Processors.ts#L1391-L1407"
     },
     {
       "kind": "interface",
@@ -194277,7 +194290,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1403-L1417"
+      "specLocation": "ingest/_types/Processors.ts#L1409-L1423"
     },
     {
       "kind": "interface",
@@ -194330,7 +194343,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1419-L1435"
+      "specLocation": "ingest/_types/Processors.ts#L1425-L1441"
     },
     {
       "kind": "interface",
@@ -194412,7 +194425,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1437-L1465"
+      "specLocation": "ingest/_types/Processors.ts#L1443-L1471"
     },
     {
       "kind": "interface",
@@ -194484,7 +194497,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1467-L1487"
+      "specLocation": "ingest/_types/Processors.ts#L1473-L1493"
     },
     {
       "kind": "interface",
@@ -194571,7 +194584,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1489-L1524"
+      "specLocation": "ingest/_types/Processors.ts#L1495-L1530"
     },
     {
       "kind": "interface",
@@ -194614,7 +194627,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1526-L1535"
+      "specLocation": "ingest/_types/Processors.ts#L1532-L1541"
     },
     {
       "kind": "enum",
@@ -194630,7 +194643,7 @@
         "name": "ShapeType",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L1537-L1540"
+      "specLocation": "ingest/_types/Processors.ts#L1543-L1546"
     },
     {
       "kind": "interface",
@@ -194729,7 +194742,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1542-L1558"
+      "specLocation": "ingest/_types/Processors.ts#L1548-L1564"
     },
     {
       "kind": "interface",
@@ -194808,7 +194821,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1560-L1585"
+      "specLocation": "ingest/_types/Processors.ts#L1566-L1591"
     },
     {
       "kind": "interface",
@@ -194823,7 +194836,7 @@
         "namespace": "ingest._types"
       },
       "properties": [],
-      "specLocation": "ingest/_types/Processors.ts#L1587-L1587"
+      "specLocation": "ingest/_types/Processors.ts#L1593-L1593"
     },
     {
       "kind": "interface",
@@ -194877,7 +194890,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1589-L1605"
+      "specLocation": "ingest/_types/Processors.ts#L1595-L1611"
     },
     {
       "kind": "interface",
@@ -194931,7 +194944,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1607-L1623"
+      "specLocation": "ingest/_types/Processors.ts#L1613-L1629"
     },
     {
       "kind": "interface",
@@ -195011,7 +195024,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1643-L1669"
+      "specLocation": "ingest/_types/Processors.ts#L1649-L1675"
     },
     {
       "kind": "interface",
@@ -195065,7 +195078,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L1625-L1641"
+      "specLocation": "ingest/_types/Processors.ts#L1631-L1647"
     },
     {
       "kind": "interface",
@@ -195173,7 +195186,7 @@
           }
         }
       ],
-      "specLocation": "ingest/_types/Processors.ts#L531-L562"
+      "specLocation": "ingest/_types/Processors.ts#L537-L568"
     },
     {
       "kind": "enum",
@@ -195198,7 +195211,7 @@
         "name": "UserAgentProperty",
         "namespace": "ingest._types"
       },
-      "specLocation": "ingest/_types/Processors.ts#L564-L570"
+      "specLocation": "ingest/_types/Processors.ts#L570-L576"
     },
     {
       "kind": "interface",
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 77bfbedebc..cbcfb275f3 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -15529,6 +15529,7 @@ export interface IngestAppendProcessor extends IngestProcessorBase {
   media_type?: string
   copy_from?: Field
   allow_duplicates?: boolean
+  ignore_empty_values?: boolean
 }
 
 export interface IngestAttachmentProcessor extends IngestProcessorBase {
diff --git a/specification/ingest/_types/Processors.ts b/specification/ingest/_types/Processors.ts
index 61fe82d9fe..b5ef6eb8f2 100644
--- a/specification/ingest/_types/Processors.ts
+++ b/specification/ingest/_types/Processors.ts
@@ -357,6 +357,12 @@ export class AppendProcessor extends ProcessorBase {
    * @server_default true
    */
   allow_duplicates?: boolean
+  /**
+   * If `true`, the processor will skip empty values from the source (e.g. empty strings, and null values),
+   * rather than appending them to the field.
+   * @server_default false
+   */
+  ignore_empty_values?: boolean
 }
 
 export class AttachmentProcessor extends ProcessorBase {