diff --git a/.composer.pman.yml b/.composer.pman.yml
index afdbb47..d1b5af8 100644
--- a/.composer.pman.yml
+++ b/.composer.pman.yml
@@ -5,12 +5,12 @@ composer:
   dev:
     link: true
     require-dev:
-      nulib/php: ^8.2-dev
+      nulib/base: ^8.2-dev
       nulib/spout: ^8.2-dev
       nulib/phpss: ^8.2-dev
   dist:
     link: false
     require-dev:
-      nulib/php: ^0.5.0p82
+      nulib/base: ^0.5.0p82
       nulib/spout: ^0.5.0p82
       nulib/phpss: ^0.5.0p82
diff --git a/CHANGES.md b/CHANGES.md
index 6140834..f3b7c5a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,13 @@
+## Release 0.6.0p74 du 30/05/2025-23:35
+
+migrer de nulib/php à nulib/base
+
+* `3ea51e7` gestion des fichiers de cache
+* `c80d99e` suite implémentation cache
+* `ec0c0ee` début implémentation cache
+* `4c91327` db/cache doit encore être travaillé
+* `ba0ad15` renommer *storage.php
+
 ## Release 0.5.1p82 du 12/05/2025-15:37
 
 ## Release 0.5.1p74 du 12/05/2025-15:34
diff --git a/README.md b/README.md
index eaa8bc6..eecc3f9 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Exemple: release de la version 0.6.0
 
 Avant de faire une release majeure sur nur/ture, faire d'abord la release
 majeure correspondante sur
-* nulib/php
+* nulib/base
 * nulib/spout
 * nulib/phpss
 
diff --git a/VERSION.txt b/VERSION.txt
index 4b9fcbe..a918a2a 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-0.5.1
+0.6.0
diff --git a/composer.json b/composer.json
index 4c36f26..da78315 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
 	"repositories": [
 		{
 			"type": "path",
-			"url": "../nulib"
+			"url": "../nulib-base"
 		},
 		{
 			"type": "path",
@@ -30,7 +30,7 @@
 		"php": "^8.2"
 	},
 	"require-dev": {
-		"nulib/php": "^8.2-dev",
+		"nulib/base": "^8.2-dev",
 		"nulib/spout": "^8.2-dev",
 		"nulib/phpss": "^8.2-dev",
 		"nulib/tests": "^8.2",
@@ -93,9 +93,6 @@
 		"nur_bin/storage.sqlite.php",
 		"nur_bin/storage.mysql.php"
 	],
-	"scripts": {
-		"uc": "@php sbin/update_classes.php"
-	},
 	"authors": [
 		{
 			"name": "Jephte Clain",
diff --git a/composer.lock b/composer.lock
index 8837f20..4709835 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "614c12e46a043d8be2eb5f049c76c653",
+    "content-hash": "2dc79f259fa01ba2a990fbcb8fcec728",
     "packages": [],
     "packages-dev": [
         {
@@ -390,18 +390,21 @@
             "time": "2024-12-30T11:07:19+00:00"
         },
         {
-            "name": "nulib/php",
-            "version": "dev-dev82",
+            "name": "nulib/base",
+            "version": "dev-dev74",
             "dist": {
                 "type": "path",
-                "url": "../nulib",
-                "reference": "de184e9909a631f6aac485db7ea46585b30a98b2"
+                "url": "../nulib-base",
+                "reference": "a319baec05c4022edc07f738a9f4cbad3e486b82"
             },
             "require": {
                 "ext-json": "*",
                 "php": "^8.2",
                 "symfony/yaml": "^7.1"
             },
+            "replace": {
+                "nulib/php": "<0.6.0"
+            },
             "require-dev": {
                 "ext-curl": "*",
                 "ext-pcntl": "*",
@@ -445,12 +448,12 @@
             "dist": {
                 "type": "path",
                 "url": "../nulib-phpss",
-                "reference": "19ef9cae64dd860492055845779262c236c29556"
+                "reference": "bed69e608189be07e2a5d76940866e340a2264de"
             },
             "require": {
-                "nulib/php": "^8.2-dev",
-                "php": "^8.2",
-                "phpoffice/phpspreadsheet": "^3.3.0"
+                "nulib/base": "^7.4-dev",
+                "php": "^7.4",
+                "phpoffice/phpspreadsheet": "^1.0"
             },
             "require-dev": {
                 "nulib/tests": "^8.2"
@@ -489,7 +492,7 @@
             "dist": {
                 "type": "path",
                 "url": "../nulib-spout",
-                "reference": "d52f9a0ebfe4fc2bab145209178ce2d4570c2e75"
+                "reference": "cc2bce3c206bd6b0a0405269db348d3936cf69f3"
             },
             "require": {
                 "ext-dom": "*",
@@ -498,8 +501,8 @@
                 "ext-libxml": "*",
                 "ext-xmlreader": "*",
                 "ext-zip": "*",
-                "nulib/php": "^8.2-dev",
-                "php": "^8.2"
+                "nulib/base": "^7.4-dev",
+                "php": "^7.4"
             },
             "replace": {
                 "openspout/openspout": "v4.27.0"
@@ -2633,7 +2636,7 @@
     "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": {
-        "nulib/php": 20,
+        "nulib/base": 20,
         "nulib/spout": 20,
         "nulib/phpss": 20
     },