Update changelog for 4.0.6 release

CHANGELOG.md

@@ -5,6 +5,8 @@
 ### New features/improvements
 - Add style property to package.json (#5019)
 - Implement `clear` and `clearing` events (#5058)
+- Add `scrollAfterSelect` option (#5150)
+- Add missing diacritics (#4118, #4337, #5464)
 
 ### Bug fixes
 - Fix up arrow error when there are no options in dropdown (#5127)
@@ -15,7 +17,7 @@
 - User-defined types not normalized properly when passed in as data (#4632)
 - Perform deep merge for `Defaults.set()` (#4364)
 - Fix "the results could not be loaded" displaying during AJAX request (#4356)
-- Cache objects in `Utils.__cache` instead of using `$.data` (#4346)
+- Cache objects in `Utils.__cache` instead of using `$.data` (#4346, #5486)
 - Removing the double event binding registration of `selection:update` (#4306)
 
 #### Accessibility
@@ -25,6 +27,13 @@
 ### Translations
 - Add Turkmen translations (`tk`) (#5125)
 - Fix error in French translations (#5122)
+- Add Albanian translation (`sq`) (#5199)
+- Add Georgian translation (`ka`) (#5179)
+- Add Nepali translation (`ne`) (#5295)
+- Add Bangla translation (`bn`) (#5248)
+- Add `removeAllItems` translation for clear "x" title (#5291)
+- Fix wording in Vietnamese translations (#5387)
+- Fix error in Russian translation (#5401)
 
 ### Miscellaneous
 -  Remove duplicate CSS selector in classic theme (#5115)