update changelog

CHANGELOG.md

@@ -1394,6 +1394,16 @@
 - Checkbox in p-treeNode always checked when using custom icon [\#12951](https://github.com/primefaces/primeng/issues/12951)
 - ConfirmDialog: Duplicated AcceptIcons [\#13001](https://github.com/primefaces/primeng/issues/13001)
 
+## ![LTS](https://www.primefaces.org/wp-content/uploads/2020/01/lts-icon-24.png "PrimeNG LTS") [15.4.22-LTS](https://www.npmjs.com/package/primeng/v/15.4.22-lts) (2024-07-04)
+
+**Fixed bugs:**
+- Component: Multiselect - Provide removetokenicon hiding in case option is disabled (reopen) [\#15624](https://github.com/primefaces/primeng/issues/15624)
+- Button Tooltip shows up after Dialog opens [\#15933](https://github.com/primefaces/primeng/issues/15933)
+- p-splitter: minSizes not working as expected [\#15943](https://github.com/primefaces/primeng/issues/15943)
+- p-splitter: Resize not working when iFrames are used in panels [\#15942](https://github.com/primefaces/primeng/issues/15942)
+- Component: InputNumber - Control update on strategy is ignored [\#12831](https://github.com/primefaces/primeng/issues/12831)
+- Component: InputNumber unneeded update model on blur [\#15799](https://github.com/primefaces/primeng/issues/15799)
+
 ## ![LTS](https://www.primefaces.org/wp-content/uploads/2020/01/lts-icon-24.png "PrimeNG LTS") [15.4.21-LTS](https://www.npmjs.com/package/primeng/v/15.4.21-lts) (2024-06-14)
 
 **Fixed bugs:**