diff --git a/README.md b/README.md
index 494eeea..654280b 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ Zwii is a database-less (flat-file) CMS that allows you to easily create and man
 - Flexible
 
 
-**Shipped version:** 12.3.05~ynh2
+**Shipped version:** 12.3.06~ynh1
 
 ## Screenshots
 
diff --git a/README_fr.md b/README_fr.md
index f667aeb..4e28fa8 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -29,7 +29,7 @@ Zwii is a database-less (flat-file) CMS that allows you to easily create and man
 - Flexible
 
 
-**Version incluse :** 12.3.05~ynh2
+**Version incluse :** 12.3.06~ynh1
 
 ## Captures d’écran
 
diff --git a/conf/app.src b/conf/app.src
index e408972..8a53957 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://forge.chapril.org/ZwiiCMS-Team/ZwiiCMS/archive/12.3.05.tar.gz
-SOURCE_SUM=e7494600a62de57101a17fddc199f6670fe051bfd33d0a8d7b9e01ac2ef10358
+SOURCE_URL=https://forge.chapril.org/ZwiiCMS-Team/ZwiiCMS/archive/12.3.06.tar.gz
+SOURCE_SUM=0b54920ff977c70c80f359327534b2636a562649f42a5a1839e7d04317277db6
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/doc/POST_UPGRADE.md b/doc/POST_UPGRADE.md
deleted file mode 100644
index d242cf5..0000000
--- a/doc/POST_UPGRADE.md
+++ /dev/null
@@ -1,19 +0,0 @@
-## You need now to finalize the upgrade process of ZwiiCMS directly in the app.
-
-#### 1. Login with your admin account
-
-#### 2. Go to setup page
-
-![Setup menu](./upgrade_process_1.png)
-
-#### 3. Click on Reinstall
-
-![Reinstall](./upgrade_process_2.png)
-
-#### 4. If needed, deactivate the maintenance mode
-
-![Maintenance mode](./upgrade_process_3.png)
-
-#### 5. Save
-
-![Save](./upgrade_process_4.png)
diff --git a/doc/PRE_UPGRADE.md b/doc/PRE_UPGRADE.md
deleted file mode 100644
index 931aa61..0000000
--- a/doc/PRE_UPGRADE.md
+++ /dev/null
@@ -1,6 +0,0 @@
-## Disclaimers / important information
-By continuing the app will stay in **maintenance mode** until a manual finalization.
-
-The manual finalization process is easy. You just need to be able to access the webapp and login with your admin account.
-
-This process will be explain at the end of the upgarde proccess.
diff --git a/doc/upgrade_process_1.png b/doc/upgrade_process_1.png
deleted file mode 100644
index c2e1d52..0000000
Binary files a/doc/upgrade_process_1.png and /dev/null differ
diff --git a/doc/upgrade_process_2.png b/doc/upgrade_process_2.png
deleted file mode 100644
index 334382e..0000000
Binary files a/doc/upgrade_process_2.png and /dev/null differ
diff --git a/doc/upgrade_process_3.png b/doc/upgrade_process_3.png
deleted file mode 100644
index f119cfc..0000000
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diff --git a/doc/upgrade_process_4.png b/doc/upgrade_process_4.png
deleted file mode 100644
index bb844c5..0000000
Binary files a/doc/upgrade_process_4.png and /dev/null differ
diff --git a/manifest.toml b/manifest.toml
index dfb2787..95ccd2d 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "ZwiiCMS"
 description.en = "Simple, lightweight, database-free, scalable and responsive CMS"
 description.fr = "CMS simple, léger, sans base de données, modulable et responsive"
 
-version = "12.3.05~ynh2"
+version = "12.3.06~ynh1"
 
 maintainers = ["ewilly"]
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 1f7ae2f..73247ce 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -34,8 +34,8 @@ find "$install_dir" -type d -exec chmod +s {} \;
 # UPDATE A CONFIG FILE
 #=================================================
 
-# Apply maintenance mode
-sed -i 's/"maintenance":[^,]*/"maintenance":true/g' "$install_dir/site/data/config.json"
+# Remove updateAvailable flag
+sed -i 's/"updateAvailable":[^,}]*/"updateAvailable":false/g' "$install_dir/site/data/core.json"
 
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS