diff --git a/src/app/componets/VersionInfo.tsx b/src/app/componets/VersionInfo.tsx
index 28dcdc8..0bdf4fb 100644
--- a/src/app/componets/VersionInfo.tsx
+++ b/src/app/componets/VersionInfo.tsx
@@ -50,7 +50,7 @@ export default function VersionInfo () {
           <p>
             Installed{' '}
             {new Intl.DateTimeFormat(undefined).format(
-              downloadedVersionsConfig.timestamps[managingVersion] ?? 0
+              downloadedVersionsConfig.list[managingVersion] ?? 0
             )}
           </p>
         </div>
diff --git a/src/app/game/page.tsx b/src/app/game/page.tsx
index e24e4b1..7cd9407 100644
--- a/src/app/game/page.tsx
+++ b/src/app/game/page.tsx
@@ -106,7 +106,9 @@ export default function Installs () {
                       <p>
                         {(() => {
                           const count =
-                            downloadedVersionsConfig?.list.filter(v => {
+                            Object.keys(
+                              downloadedVersionsConfig?.list ?? []
+                            ).filter(v => {
                               const info = getVersionInfo(v)
                               if (!info) return false
                               if (
@@ -136,12 +138,12 @@ export default function Installs () {
                 </div>
               )
             })}
-          {downloadedVersionsConfig?.list.filter(v => {
+          {Object.keys(downloadedVersionsConfig?.list ?? []).filter(v => {
             const info = getVersionInfo(v)
             if (!info) return false
             return info.game === id
           }).length != 0 ? (
-            downloadedVersionsConfig?.list
+            Object.keys(downloadedVersionsConfig?.list ?? [])
               .sort((a, b) => {
                 const infoA = getVersionInfo(a)
                 const infoB = getVersionInfo(b)
@@ -219,7 +221,7 @@ export default function Installs () {
                         <p>
                           Installed{' '}
                           {new Intl.DateTimeFormat(undefined).format(
-                            downloadedVersionsConfig.timestamps[entry]
+                            downloadedVersionsConfig?.list[entry]
                           )}
                         </p>
                       </div>
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 8f81168..b51ded8 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -87,7 +87,9 @@ export default function RootLayout ({
     if (!normalConfig || !serverVersionList) return []
 
     return serverVersionList.versions
-      .filter(v => !downloadedVersionsConfig?.list.includes(v.id))
+      .filter(
+        v => !Object.keys(downloadedVersionsConfig?.list ?? []).includes(v.id)
+      )
       .filter(v => {
         if (
           platform() === 'linux' &&
@@ -123,7 +125,7 @@ export default function RootLayout ({
 
     const gamesMap = new Map<number, Game>()
 
-    downloadedVersionsConfig.list.forEach(i => {
+    Object.keys(downloadedVersionsConfig.list).forEach(i => {
       const version = getVersionInfo(i)
       if (!version) return
       const game = getGameInfo(version.game)
@@ -143,7 +145,7 @@ export default function RootLayout ({
     const allowWine =
       platform() !== 'linux' || normalConfig?.settings.useWineOnUnixWhenNeeded
 
-    const installed = downloadedVersionsConfig.list.filter(v => {
+    const installed = Object.keys(downloadedVersionsConfig.list).filter(v => {
       const info = getVersionInfo(v)
       if (!info) return false
       if (info.wine && !allowWine) return false
@@ -274,6 +276,7 @@ export default function RootLayout ({
       const versionsConfig = await readVersionsConfig()
       setDownloadedVersionsConfig(versionsConfig)
       setNormalConfig(normalConfig)
+      setLoadingText('Finishing...')
       setLoading(false)
 
       if (!(await isPermissionGranted())) {
@@ -338,8 +341,7 @@ export default function RootLayout ({
           return
         }
         const date = Date.now()
-        data.list = [...data.list, download.version]
-        data.timestamps = { ...data.timestamps, [download.version]: date }
+        data.list = { ...data.list, [download.version]: date }
         setDownloadedVersionsConfig(data)
         writeVersionsConfig(data)
       } else {
@@ -725,19 +727,14 @@ export default function RootLayout ({
 
                                   setDownloadedVersionsConfig(prev => {
                                     if (!prev) return prev
-                                    const updatedList = prev.list.filter(
-                                      v => v !== managingVersion
-                                    )
-                                    const updatedTimestamps =
-                                      Object.fromEntries(
-                                        Object.entries(prev.timestamps).filter(
-                                          ([k]) => k !== managingVersion
-                                        )
+                                    const updatedList = Object.fromEntries(
+                                      Object.entries(prev.list).filter(
+                                        ([k]) => k !== managingVersion
                                       )
+                                    )
                                     const updatedConfig = {
                                       ...prev,
-                                      list: updatedList,
-                                      timestamps: updatedTimestamps
+                                      list: updatedList
                                     }
                                     writeVersionsConfig(updatedConfig)
                                     setManagingVersion(null)
diff --git a/src/app/types/VersionsConfig.ts b/src/app/types/VersionsConfig.ts
index 6bb8e8f..29ef400 100644
--- a/src/app/types/VersionsConfig.ts
+++ b/src/app/types/VersionsConfig.ts
@@ -1,20 +1,17 @@
-type VersionsConfigData = {
+export type VersionsConfigData = {
   version: string
-  list: string[]
-  timestamps: Record<string, number>
+  list: Record<string, number>
 }
 
 export class VersionsConfig {
   constructor (
     public version: string,
-    public list: string[] = [],
-    public timestamps: Record<string, number> = {}
+    public list: Record<string, number> = {}
   ) {}
 
   static import (data: VersionsConfigData) {
     const cfg = new VersionsConfig(data.version)
-    cfg.list = [...data.list]
-    cfg.timestamps = { ...data.timestamps }
+    cfg.list = { ...data.list }
     return cfg
   }
 }
diff --git a/src/app/util/BazookaManager.ts b/src/app/util/BazookaManager.ts
index f9a567d..7ed87ff 100644
--- a/src/app/util/BazookaManager.ts
+++ b/src/app/util/BazookaManager.ts
@@ -8,7 +8,7 @@ import {
   readTextFile,
   writeFile
 } from '@tauri-apps/plugin-fs'
-import { VersionsConfig } from '../types/VersionsConfig'
+import { VersionsConfig, VersionsConfigData } from '../types/VersionsConfig'
 
 export async function readNormalConfig (): Promise<NormalConfig> {
   const version = await app.getVersion()
@@ -82,7 +82,33 @@ export async function readVersionsConfig (): Promise<VersionsConfig> {
       return new VersionsConfig(version)
     }
     const config = await readTextFile('versions.json', options)
-    return VersionsConfig.import(JSON.parse(config))
+    const raw = JSON.parse(config)
+    if (
+      raw.version &&
+      raw.list &&
+      raw.timestamps &&
+      (raw.version == '1.0.0' ||
+        raw.version == '1.1.0' ||
+        raw.version == '1.1.1' ||
+        raw.version == '1.1.2' ||
+        raw.version == '1.2.0' ||
+        raw.version == '1.3.0' ||
+        raw.version == '1.3.1' ||
+        raw.version == '1.4.0' ||
+        raw.version == '1.5.0')
+    ) {
+      raw.version = version
+      delete raw.list
+      raw.list = raw.timestamps
+      delete raw.timestamps
+
+      await writeFile(
+        'versions.json',
+        new TextEncoder().encode(JSON.stringify(raw, null, 2)),
+        options
+      )
+    }
+    return VersionsConfig.import(raw)
   } catch {
     return new VersionsConfig(version)
   }