diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0888f0a1..e865a1b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@
 ### **Copyrigth**: 
 *Tiledesk SRL*
 
+# 1.21.0-rc.15
+- **added**: image preload resolve for doc images
+- **changed**: info-tooltip doc component UI
+
 # 1.21.0-rc.14
 -  **added**: changed: min value for max_tokens if citations checkbox is enabled
 
diff --git a/package-lock.json b/package-lock.json
index c05de4bf..a960e944 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@tiledesk/cds",
-  "version": "1.21.0-rc.14",
+  "version": "1.21.0-rc.15",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@tiledesk/cds",
-      "version": "1.21.0-rc.13",
+      "version": "1.21.0-rc.15",
       "license": "MIT",
       "dependencies": {
         "@angular/animations": "^14.2.0",
diff --git a/package.json b/package.json
index f82ad411..7c5cd002 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@tiledesk/cds",
   "author": "Tiledesk SRL",
-  "version": "1.21.0-rc.14",
+  "version": "1.21.0-rc.15",
   "license": "MIT",
   "homepage": "https://www.tiledesk.com",
   "repository": {