diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/actions/update_index_meta.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/actions/update_index_meta.test.ts
index 6ed55ccb49ebe..d597e2927663b 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/actions/update_index_meta.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/actions/update_index_meta.test.ts
@@ -17,8 +17,8 @@ describe('updateIndexMeta', () => {
     const index = '.kibana_1';
     const meta: IndexMappingMeta = {
       mappingVersions: {
-        foo: 1,
-        bar: 1,
+        foo: '10.1.0',
+        bar: '10.1.0',
       },
     };
 
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/init.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/init.test.ts
index d8c176af4be0a..05cb283d378a6 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/init.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/init.test.ts
@@ -38,7 +38,7 @@ describe('Stage: init', () => {
       aliases: {},
       mappings: {
         properties: {},
-        _meta: { mappingVersions: { foo: 1, bar: 1 } },
+        _meta: { mappingVersions: { foo: '10.1.0', bar: '10.1.0' } },
       },
       settings: {},
     },
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.test.ts
index c3d3fd67422b9..3595b5fb43cd4 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.test.ts
@@ -49,8 +49,8 @@ describe('Stage: updateDocumentModelVersion', () => {
   it('updates state.currentIndexMeta when successful', () => {
     const state = createState({
       currentIndexMeta: {
-        mappingVersions: { foo: 1, bar: 2 },
-        docVersions: { foo: 0, bar: 0 },
+        mappingVersions: { foo: '10.1.0', bar: '10.2.0' },
+        docVersions: { foo: '0.0.0', bar: '0.0.0' },
         migrationState: {
           convertingDocuments: true,
         },
@@ -63,8 +63,8 @@ describe('Stage: updateDocumentModelVersion', () => {
     const newState = updateDocumentModelVersion(state, res, context);
 
     expect(newState.currentIndexMeta).toEqual({
-      mappingVersions: { foo: 1, bar: 2 },
-      docVersions: { foo: 1, bar: 2 },
+      mappingVersions: { foo: '10.1.0', bar: '10.2.0' },
+      docVersions: { foo: '10.1.0', bar: '10.2.0' },
       migrationState: {
         convertingDocuments: false,
       },
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.ts
index ea3ea142cbd19..94c0923df267d 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_document_model_version.ts
@@ -24,7 +24,7 @@ export const updateDocumentModelVersion: ModelStage<
     controlState: 'UPDATE_DOCUMENT_MODEL_VERSIONS_WAIT_FOR_INSTANCES',
     currentIndexMeta: setMetaDocMigrationComplete({
       meta: state.currentIndexMeta,
-      versions: context.typeModelVersions,
+      versions: context.typeVirtualVersions,
     }),
   };
 };
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.test.ts
index b21ec69a531f0..ea053570b74e8 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.test.ts
@@ -42,7 +42,7 @@ describe('Stage: updateMappingModelVersion', () => {
     expect(newState.currentIndexMeta).toEqual(
       setMetaMappingMigrationComplete({
         meta: state.currentIndexMeta,
-        versions: context.typeModelVersions,
+        versions: context.typeVirtualVersions,
       })
     );
   });
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.ts
index 946c4a4ab1ef3..54cb5cff6d24a 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/model/stages/update_mapping_model_version.ts
@@ -24,7 +24,7 @@ export const updateMappingModelVersion: ModelStage<
     controlState: state.aliasActions.length ? 'UPDATE_ALIASES' : 'INDEX_STATE_UPDATE_DONE',
     currentIndexMeta: setMetaMappingMigrationComplete({
       meta: state.currentIndexMeta,
-      versions: context.typeModelVersions,
+      versions: context.typeVirtualVersions,
     }),
   };
 };
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.test.ts
index d9135fff65a3e..00684ec46f85c 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.test.ts
@@ -85,7 +85,7 @@ describe('actions', () => {
       expect(setMetaMappingMigrationCompleteMock).toHaveBeenCalledTimes(1);
       expect(setMetaMappingMigrationCompleteMock).toHaveBeenCalledWith({
         meta: state.currentIndexMeta,
-        versions: context.typeModelVersions,
+        versions: context.typeVirtualVersions,
       });
     });
 
@@ -123,7 +123,7 @@ describe('actions', () => {
       expect(setMetaDocMigrationCompleteMock).toHaveBeenCalledTimes(1);
       expect(setMetaDocMigrationCompleteMock).toHaveBeenCalledWith({
         meta: state.currentIndexMeta,
-        versions: context.typeModelVersions,
+        versions: context.typeVirtualVersions,
       });
     });
 
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.ts
index cb3e1b5b5ad27..2e6a785704b8a 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/next.ts
@@ -84,7 +84,7 @@ export const nextActionMap = (context: MigratorContext) => {
         index: state.currentIndex,
         meta: setMetaMappingMigrationComplete({
           meta: state.currentIndexMeta,
-          versions: context.typeModelVersions,
+          versions: context.typeVirtualVersions,
         }),
       }),
     UPDATE_ALIASES: (state: UpdateAliasesState) =>
@@ -172,7 +172,7 @@ export const nextActionMap = (context: MigratorContext) => {
         index: state.currentIndex,
         meta: setMetaDocMigrationComplete({
           meta: state.currentIndexMeta,
-          versions: context.typeModelVersions,
+          versions: context.typeVirtualVersions,
         }),
       }),
     UPDATE_DOCUMENT_MODEL_VERSIONS_WAIT_FOR_INSTANCES: (
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/test_helpers/context.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/test_helpers/context.ts
index 0dafc36108b93..6fb5eb180d71e 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/test_helpers/context.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/test_helpers/context.ts
@@ -31,9 +31,9 @@ export const createContextMock = (
     kibanaVersion: '8.7.0',
     indexPrefix: '.kibana',
     types: ['foo', 'bar'],
-    typeModelVersions: {
-      foo: 1,
-      bar: 2,
+    typeVirtualVersions: {
+      foo: '10.1.0',
+      bar: '10.2.0',
     },
     documentMigrator: createDocumentMigrator(),
     migrationConfig: {
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.test.ts
index 35354001f6803..6469ebb7f060a 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.test.ts
@@ -69,14 +69,14 @@ describe('buildIndexMeta', () => {
 
     expect(meta).toEqual({
       mappingVersions: {
-        foo: 2,
-        bar: 1,
-        dolly: 3,
+        foo: '10.2.0',
+        bar: '10.1.0',
+        dolly: '10.3.0',
       },
       docVersions: {
-        foo: 2,
-        bar: 1,
-        dolly: 3,
+        foo: '10.2.0',
+        bar: '10.1.0',
+        dolly: '10.3.0',
       },
       migrationState: {
         convertingDocuments: false,
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.ts
index a75ebd4dbdc1e..2157f3798d4db 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/build_index_mappings.ts
@@ -11,7 +11,7 @@ import type { SavedObjectsType } from '@kbn/core-saved-objects-server';
 import {
   type IndexMapping,
   type IndexMappingMeta,
-  getModelVersionMapForTypes,
+  getVirtualVersionMap,
 } from '@kbn/core-saved-objects-base-server-internal';
 import { getBaseMappings, buildTypesMappings } from '../../core';
 
@@ -48,11 +48,11 @@ interface BuildIndexMetaOpts {
  * @param types The list of all registered SO types.
  */
 export const buildIndexMeta = ({ types }: BuildIndexMetaOpts): IndexMappingMeta => {
-  const modelVersions = getModelVersionMapForTypes(types);
+  const typeVersions = getVirtualVersionMap(types);
 
   return {
-    mappingVersions: modelVersions,
-    docVersions: modelVersions,
+    mappingVersions: typeVersions,
+    docVersions: typeVersions,
     migrationState: {
       convertingDocuments: false,
     },
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.test.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.test.ts
index 4298c6b027072..da9654400bf6f 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.test.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.test.ts
@@ -8,7 +8,7 @@
 
 import type {
   IndexMappingMeta,
-  ModelVersionMap,
+  VirtualVersionMap,
 } from '@kbn/core-saved-objects-base-server-internal';
 import {
   setMetaDocMigrationStarted,
@@ -18,12 +18,12 @@ import {
 
 const getDefaultMeta = (): IndexMappingMeta => ({
   mappingVersions: {
-    foo: 1,
-    bar: 1,
+    foo: '10.1.0',
+    bar: '10.1.0',
   },
   docVersions: {
-    foo: 1,
-    bar: 1,
+    foo: '10.1.0',
+    bar: '10.1.0',
   },
   migrationState: {
     convertingDocuments: false,
@@ -33,7 +33,7 @@ const getDefaultMeta = (): IndexMappingMeta => ({
 describe('setMetaMappingMigrationComplete', () => {
   it('updates the meta to set the mappingVersions', () => {
     const meta: IndexMappingMeta = getDefaultMeta();
-    const versions: ModelVersionMap = { foo: 3, bar: 2 };
+    const versions: VirtualVersionMap = { foo: '10.3.0', bar: '10.2.0' };
 
     const updated = setMetaMappingMigrationComplete({ meta, versions });
 
@@ -67,7 +67,7 @@ describe('setMetaDocMigrationComplete', () => {
         convertingDocuments: true,
       },
     };
-    const versions: ModelVersionMap = { foo: 3, bar: 2 };
+    const versions: VirtualVersionMap = { foo: '10.3.0', bar: '10.2.0' };
 
     const updated = setMetaDocMigrationComplete({ meta, versions });
 
diff --git a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.ts b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.ts
index 73d693d4a1f1a..2d06f5adcb378 100644
--- a/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.ts
+++ b/packages/core/saved-objects/core-saved-objects-migration-server-internal/src/zdt/utils/update_index_meta.ts
@@ -8,7 +8,7 @@
 
 import type {
   IndexMappingMeta,
-  ModelVersionMap,
+  VirtualVersionMap,
 } from '@kbn/core-saved-objects-base-server-internal';
 
 export const setMetaMappingMigrationComplete = ({
@@ -16,7 +16,7 @@ export const setMetaMappingMigrationComplete = ({
   versions,
 }: {
   meta: IndexMappingMeta;
-  versions: ModelVersionMap;
+  versions: VirtualVersionMap;
 }): IndexMappingMeta => {
   return {
     ...meta,
@@ -44,7 +44,7 @@ export const setMetaDocMigrationComplete = ({
   versions,
 }: {
   meta: IndexMappingMeta;
-  versions: ModelVersionMap;
+  versions: VirtualVersionMap;
 }): IndexMappingMeta => {
   return {
     ...meta,