diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbb642e..9dacf99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@ Latest
 ------
 
 ## Changes
+* [#156](https://github.com/cleverage/ui-process-bundle/issues/156) `LogRecord::contextIsEmpty()` (deprecated since v3.1, use `hasContextInfo()`) triggers a deprecation at runtime with `trigger_deprecation()` (`symfony/deprecation-contracts`, now required). Add tests.
 * [#154](https://github.com/cleverage/ui-process-bundle/issues/154) Add a `.gitattributes`: the development files (`.docker/`, `.github/`, `tests/`, quality tools and PHPUnit configurations, `Makefile`) are no longer part of the archive installed by Composer (`dist`), remove the unused `package.json` (Webpack Encore leftover of the Symfony skeleton: no `webpack.config.js`, no `assets/`).
 * [#149](https://github.com/cleverage/ui-process-bundle/issues/149) Clean up composer.json: remove the unused `symfony/dotenv`, `symfony/runtime`, `ext-ctype` and `ext-iconv` requirements (applications relying on the bundle to install `symfony/dotenv` / `symfony/runtime` must require them, as the Symfony skeleton does); replace `doctrine/common` by `doctrine/collections` (only `ArrayCollection` is used); require `twig/twig`, `symfony/twig-bundle`, `psr/log`, `doctrine/persistence`, `doctrine/migrations` and `symfony/event-dispatcher-contracts`, used directly but only installed transitively; add `twig/extra-bundle` and `symfony/property-access` (used by the tests) to the dev requirements.
 * [#150](https://github.com/cleverage/ui-process-bundle/issues/150) Require `symfony/monolog-bundle` and `monolog/monolog`, used directly by the bundle (log handlers, `monolog` configuration prepended, `monolog.logger` tags) but only installed through `cleverage/process-bundle`, which may stop requiring MonologBundle (cleverage/process-bundle#269).
diff --git a/composer.json b/composer.json
index 80d83b9..570028c 100644
--- a/composer.json
+++ b/composer.json
@@ -52,6 +52,7 @@
     "symfony/config": "^6.4 || ^7.4 || ^8",
     "symfony/console": "^6.4 || ^7.4 || ^8",
     "symfony/dependency-injection": "^6.4 || ^7.4 || ^8",
+    "symfony/deprecation-contracts": "^2.5 || ^3",
     "symfony/doctrine-messenger": "^6.4 || ^7.4 || ^8",
     "symfony/event-dispatcher": "^6.4 || ^7.4 || ^8",
     "symfony/event-dispatcher-contracts": "^3",
diff --git a/src/Entity/LogRecord.php b/src/Entity/LogRecord.php
index a5df596..0efd67b 100644
--- a/src/Entity/LogRecord.php
+++ b/src/Entity/LogRecord.php
@@ -74,6 +74,8 @@ public function hasContextInfo(): bool
      */
     public function contextIsEmpty(): bool
     {
+        trigger_deprecation('cleverage/ui-process-bundle', '3.1', 'The "%s()" method is deprecated, use "hasContextInfo()" instead.', __METHOD__);
+
         return $this->hasContextInfo();
     }
 
diff --git a/tests/Entity/LogRecordTest.php b/tests/Entity/LogRecordTest.php
index fb06144..c60f76d 100644
--- a/tests/Entity/LogRecordTest.php
+++ b/tests/Entity/LogRecordTest.php
@@ -41,9 +41,22 @@ public function testContextIsReadableByThePropertyAccessor(): void
 
     public function testDeprecatedContextIsEmptyIsUnchanged(): void
     {
-        // Misnamed: returns true when the context is NOT empty
-        self::assertTrue($this->createLogRecord(['file' => 'a.txt'])->contextIsEmpty());
-        self::assertFalse($this->createLogRecord([])->contextIsEmpty());
+        $deprecations = [];
+        set_error_handler(static function (int $errno, string $errstr) use (&$deprecations): bool {
+            $deprecations[] = $errstr;
+
+            return true;
+        }, \E_USER_DEPRECATED);
+        try {
+            // Misnamed: returns true when the context is NOT empty
+            self::assertTrue($this->createLogRecord(['file' => 'a.txt'])->contextIsEmpty());
+            self::assertFalse($this->createLogRecord([])->contextIsEmpty());
+        } finally {
+            restore_error_handler();
+        }
+
+        $expected = 'Since cleverage/ui-process-bundle 3.1: The "CleverAge\\UiProcessBundle\\Entity\\LogRecord::contextIsEmpty()" method is deprecated, use "hasContextInfo()" instead.';
+        self::assertSame([$expected, $expected], $deprecations);
     }
 
     public function testAccessors(): void