From 0caa5c43714091bd04222f9b5111a2e82a5597ad Mon Sep 17 00:00:00 2001
From: prjanitor <prjanitortool@gmail.com>
Date: Wed, 1 Apr 2026 21:35:55 +0300
Subject: [PATCH 1/2] Fix: Add null check in versionIsInvalid to prevent
 runtime crash

---
 libs/ngxs/storage/utils/deserialize-by-storage-meta.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts b/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
index 2037ef6a4..3e7766fa0 100644
--- a/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
+++ b/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
@@ -35,6 +35,10 @@ export function deserializeByStorageMeta<T>(
 }
 
 function versionIsInvalid<T>(meta: StorageMeta<T>): boolean {
+    if (!meta) {
+        return true;
+    }
+
     const version: number = parseFloat(meta.version?.toString() ?? '');
 
     return (

From 3bbc14ff208933308141fcdd38f9d8d7ee37cd16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9C=D0=B0=D0=BA=D1=81=D0=B8=D0=BC=20=D0=98=D0=B2=D0=B0?=
 =?UTF-8?q?=D0=BD=D0=BE=D0=B2?= <omaxphp@yandex.ru>
Date: Thu, 2 Apr 2026 10:10:57 +0300
Subject: [PATCH 2/2] Update deserialize-by-storage-meta.ts

---
 libs/ngxs/storage/utils/deserialize-by-storage-meta.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts b/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
index 3e7766fa0..36de65880 100644
--- a/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
+++ b/libs/ngxs/storage/utils/deserialize-by-storage-meta.ts
@@ -34,7 +34,7 @@ export function deserializeByStorageMeta<T>(
     throw new InvalidStructureDataException(`"${value}" not an object`);
 }
 
-function versionIsInvalid<T>(meta: StorageMeta<T>): boolean {
+function versionIsInvalid<T>(meta?: StorageMeta<T> | null): boolean {
     if (!meta) {
         return true;
     }