diff --git a/native/native_rust_library/src/backup/upload_handler.rs b/native/native_rust_library/src/backup/upload_handler.rs
--- a/native/native_rust_library/src/backup/upload_handler.rs
+++ b/native/native_rust_library/src/backup/upload_handler.rs
@@ -234,12 +234,20 @@
       Err(err) => return Err(err.into()),
     };
 
+    let version_info = backup_client::BackupVersionInfo {
+      code_version: crate::generated::CODE_VERSION as u16,
+      state_version: crate::generated::STATE_VERSION as u16,
+      // TODO: Pass DB version value here
+      ..Default::default()
+    };
+
     let backup_data = BackupData {
       backup_id: backup_id.clone(),
       user_data,
       user_keys,
       attachments,
       siwe_backup_msg,
+      version_info,
     };
 
     let result = backup_client
diff --git a/services/backup/src/http/handlers/backup.rs b/services/backup/src/http/handlers/backup.rs
--- a/services/backup/src/http/handlers/backup.rs
+++ b/services/backup/src/http/handlers/backup.rs
@@ -5,7 +5,7 @@
 };
 use comm_lib::{
   auth::{AuthorizationCredential, UserIdentity},
-  backup::LatestBackupInfoResponse,
+  backup::{BackupVersionInfo, LatestBackupInfoResponse},
   blob::{
     client::BlobServiceClient,
     types::{http::BlobSizesRequest, BlobInfo},
@@ -54,6 +54,9 @@
 
   let aux_data = multipart.get_aux_data().await?;
   let siwe_backup_msg = aux_data.get_siwe_backup_msg()?;
+  let version_info = aux_data
+    .get_backup_version_info()?
+    .ok_or(BackupError::BadRequest)?;
 
   let item = BackupItem::new(
     user.user_id.clone(),
@@ -64,7 +67,7 @@
     siwe_backup_msg,
     // TODO: use real values here
     0,
-    Default::default(),
+    version_info,
   );
 
   db_client
@@ -170,6 +173,11 @@
   let (attachments, attachments_revokes) =
     multipart.process_attachmens_field(&blob_client).await?;
 
+  let aux_data = multipart.get_aux_data().await?;
+  let version_info = aux_data
+    .get_backup_version_info()?
+    .ok_or(BackupError::BadRequest)?;
+
   let existing_backup_item = db_client
     .find_backup_item(&user.user_id, &backup_id)
     .await
@@ -185,7 +193,7 @@
     existing_backup_item.siwe_backup_msg.clone(),
     // TODO: use real values here
     0,
-    Default::default(),
+    version_info,
   );
 
   db_client
@@ -361,6 +369,9 @@
 
   let aux_data = multipart.get_aux_data().await?;
   let siwe_backup_msg = aux_data.get_siwe_backup_msg()?;
+  // old clients didn't upload version info
+  let version_info = aux_data.get_backup_version_info()?.unwrap_or_default();
+
   let ordered_backup_item = db_client
     .find_last_backup_item(user_id)
     .await
@@ -431,7 +442,7 @@
     siwe_backup_msg,
     // TODO: use real values here
     0,
-    Default::default(),
+    version_info,
   );
 
   Ok((item, revokes))
@@ -616,6 +627,17 @@
     let siwe_backup_msg = parse_bytes_to_string(buf.clone())?;
     Ok(Some(siwe_backup_msg))
   }
+
+  fn get_backup_version_info(
+    &self,
+  ) -> actix_web::Result<Option<BackupVersionInfo>> {
+    let Some(buf) = self.0.get("version_info") else {
+      return Ok(None);
+    };
+
+    let version_info = serde_json::from_slice(buf)?;
+    Ok(Some(version_info))
+  }
 }
 
 mod blob_utils {
diff --git a/services/commtest/src/backup/backup_utils.rs b/services/commtest/src/backup/backup_utils.rs
--- a/services/commtest/src/backup/backup_utils.rs
+++ b/services/commtest/src/backup/backup_utils.rs
@@ -24,6 +24,7 @@
     )),
     attachments: vec![],
     siwe_backup_msg: Some("message".to_string()),
+    version_info: Default::default(),
   }
 }
 
diff --git a/shared/backup_client/src/lib.rs b/shared/backup_client/src/lib.rs
--- a/shared/backup_client/src/lib.rs
+++ b/shared/backup_client/src/lib.rs
@@ -54,6 +54,7 @@
       user_data,
       attachments,
       siwe_backup_msg,
+      version_info,
     } = backup_data;
 
     let endpoint = match (user_data.clone(), user_keys.clone()) {
@@ -89,6 +90,9 @@
       form = form.text("siwe_backup_msg", siwe_backup_msg_value);
     }
 
+    let version_info_payload = serde_json::to_string(&version_info)?;
+    form = form.text("version_info", version_info_payload);
+
     let response = client
       .post(self.url.join(endpoint)?)
       .bearer_auth(user_identity.as_authorization_token()?)
@@ -343,6 +347,7 @@
   pub user_data: Option<Vec<u8>>,
   pub attachments: Vec<String>,
   pub siwe_backup_msg: Option<String>,
+  pub version_info: BackupVersionInfo,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]