ucfirst → capitalize

CHANGELOG-WIP.md

@@ -8,6 +8,7 @@
 
 ## Development
 - The `duration` Twig filter now has a `language` argument. ([#16332](https://github.com/craftcms/cms/pull/16332))
+- Deprecated the `ucfirst` Twig filter. `capitalize` should be used instead.
 
 ## Extensibility
 - `craft\helpers\DateTimeHelper::humanDuration()` now has a `$language` argument. ([#16332](https://github.com/craftcms/cms/pull/16332))

src/templates/settings/plugins/index.twig

@@ -111,7 +111,7 @@
                       {% switch issue %}
                       {% case 'wrong_edition' %}
                         {{ 'This license is for the {name} edition.'|t('app', {
-                          name: config.licensedEdition|ucfirst
+                          name: config.licensedEdition|capitalize,
                         }) }}
                       {% case 'no_trials' %}
                         {{ 'Plugin trials are not allowed on this domain.'|t('app') }}

src/web/twig/Extension.php

@@ -457,9 +457,11 @@ public function truncateFilter(string $string, int $length, string $suffix = '
      *
      * @param mixed $string The multibyte string.
      * @return string The string with the first character converted to upercase.
+     * @deprecated in 4.14.0
      */
     public function ucfirstFilter(mixed $string): string
     {
+        Craft::$app->getDeprecator()->log('ucfirst', 'The `|ucfirst` filter has been deprecated. Use `|capitalize` instead.');
         return StringHelper::upperCaseFirst((string)$string);
     }