diff --git a/generated/java/datadoc-model/pom.xml b/generated/java/datadoc-model/pom.xml
index c48569d..db082f1 100644
--- a/generated/java/datadoc-model/pom.xml
+++ b/generated/java/datadoc-model/pom.xml
@@ -3,7 +3,7 @@
   <groupId>no.ssb.dapla.metadata</groupId>
   <artifactId>datadoc-model</artifactId>
   <packaging>jar</packaging>
-  <version>1.5-SNAPSHOT</version>
+  <version>1.7-SNAPSHOT</version>
   <name>datadoc-model</name>
   <url>http://maven.apache.org</url>
 
diff --git a/generated/python/datadoc_model/datadoc_model/all_optional/model.py b/generated/python/datadoc_model/datadoc_model/all_optional/model.py
index 63fb4c5..cac3925 100644
--- a/generated/python/datadoc_model/datadoc_model/all_optional/model.py
+++ b/generated/python/datadoc_model/datadoc_model/all_optional/model.py
@@ -1,6 +1,6 @@
 # generated by datamodel-codegen:
 #   filename:  metadata-container-json-schema.json
-#   timestamp: 2025-09-03T10:05:55+00:00
+#   timestamp: 2025-12-03T08:30:17+00:00
 
 from __future__ import annotations
 
@@ -53,7 +53,7 @@ class UseRestrictionItem(DatadocBaseModel):
 
 class CustomTypeForDatasetMetadatum(DatadocBaseModel):
     key: Optional[str] = Field(None, description="Custom type KEY", title="Key")
-    value: Optional[Union[str, list, dict[str, Any]]] = Field(
+    value: Optional[Union[str, list[Any], dict[str, Any]]] = Field(
         None,
         description="Custom type VALUE (of type string, array or object).",
         title="Value",
@@ -88,7 +88,7 @@ class Pseudonymization(DatadocBaseModel):
         description="Type of stable identifier the variable was mapped to prior to pseudonymization.",
         title="Stable identifier type",
     )
-    stable_identifier_version: Optional[str] = Field(
+    stable_identifier_version: Optional[date] = Field(
         None,
         description="Version of stable identifier the variable was mapped to prior to pseudonymization.",
         title="Stable identifier version",
@@ -125,7 +125,7 @@ class SentinelValues(DatadocBaseModel):
 
 class CustomTypeForVariableMetadatum(DatadocBaseModel):
     key: Optional[str] = Field(None, description="Custom type KEY", title="Key")
-    value: Optional[Union[str, list, dict[str, Any]]] = Field(
+    value: Optional[Union[str, list[Any], dict[str, Any]]] = Field(
         None,
         description="Custom type VALUE (of type string, array or object).",
         title="Value",
diff --git a/generated/python/datadoc_model/datadoc_model/required/model.py b/generated/python/datadoc_model/datadoc_model/required/model.py
index 5d91ae6..da70cc5 100644
--- a/generated/python/datadoc_model/datadoc_model/required/model.py
+++ b/generated/python/datadoc_model/datadoc_model/required/model.py
@@ -1,6 +1,6 @@
 # generated by datamodel-codegen:
 #   filename:  metadata-container-json-schema.json
-#   timestamp: 2025-09-03T10:05:57+00:00
+#   timestamp: 2025-12-03T08:30:19+00:00
 
 from __future__ import annotations
 
@@ -53,7 +53,7 @@ class UseRestrictionItem(DatadocBaseModel):
 
 class CustomTypeForDatasetMetadatum(DatadocBaseModel):
     key: Optional[str] = Field(None, description="Custom type KEY", title="Key")
-    value: Optional[Union[str, list, dict[str, Any]]] = Field(
+    value: Optional[Union[str, list[Any], dict[str, Any]]] = Field(
         None,
         description="Custom type VALUE (of type string, array or object).",
         title="Value",
@@ -88,7 +88,7 @@ class Pseudonymization(DatadocBaseModel):
         description="Type of stable identifier the variable was mapped to prior to pseudonymization.",
         title="Stable identifier type",
     )
-    stable_identifier_version: Optional[str] = Field(
+    stable_identifier_version: Optional[date] = Field(
         None,
         description="Version of stable identifier the variable was mapped to prior to pseudonymization.",
         title="Stable identifier version",
@@ -125,7 +125,7 @@ class SentinelValues(DatadocBaseModel):
 
 class CustomTypeForVariableMetadatum(DatadocBaseModel):
     key: Optional[str] = Field(None, description="Custom type KEY", title="Key")
-    value: Optional[Union[str, list, dict[str, Any]]] = Field(
+    value: Optional[Union[str, list[Any], dict[str, Any]]] = Field(
         None,
         description="Custom type VALUE (of type string, array or object).",
         title="Value",
diff --git a/generated/python/datadoc_model/pyproject.toml b/generated/python/datadoc_model/pyproject.toml
index a3984d8..8722c21 100644
--- a/generated/python/datadoc_model/pyproject.toml
+++ b/generated/python/datadoc_model/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "ssb-datadoc-model"
-version = "7.0.2"
+version = "8.0.1"
 description = "Data Model for use in Statistics Norway's Metadata system"
 authors = [{ name = "Statistics Norway", email = "metadata@ssb.no" }]
 license = "MIT"
diff --git a/src/datadoc/datadoc-json-schema.json b/src/datadoc/datadoc-json-schema.json
index 817027e..c0641e3 100644
--- a/src/datadoc/datadoc-json-schema.json
+++ b/src/datadoc/datadoc-json-schema.json
@@ -290,6 +290,7 @@
               },
               "stable_identifier_version": {
                 "type": "string",
+                "format": "date",
                 "title": "Stable identifier version",
                 "description": "Version of stable identifier the variable was mapped to prior to pseudonymization.",
                 "$comment": "Only relevant when the variable is mapped to a stable identifier."