diff --git a/ChangeLog-12.0.md b/ChangeLog-12.0.md
index 4427d3d4..fe5b6f06 100644
--- a/ChangeLog-12.0.md
+++ b/ChangeLog-12.0.md
@@ -6,6 +6,7 @@ All notable changes are documented in this file using the [Keep a CHANGELOG](htt
 
 ### Removed
 
+* Optional argument `$linesToBeUsed` of `CodeCoverage::stop()` and `CodeCoverage::append()` methods
 * This component is no longer supported on PHP 8.2
 
 [12.0.0]: https://github.com/sebastianbergmann/php-code-coverage/compare/11.0...main
diff --git a/src/CodeCoverage.php b/src/CodeCoverage.php
index c23fe17b..959c238f 100644
--- a/src/CodeCoverage.php
+++ b/src/CodeCoverage.php
@@ -14,7 +14,6 @@
 use function array_flip;
 use function array_keys;
 use function array_merge;
-use function array_merge_recursive;
 use function array_unique;
 use function count;
 use function explode;
@@ -56,11 +55,6 @@ final class CodeCoverage
     private ProcessedCodeCoverageData $data;
     private bool $useAnnotationsForIgnoringCode = true;
 
-    /**
-     * @var array<string,list<int>>
-     */
-    private array $linesToBeIgnored = [];
-
     /**
      * @var array<string, TestType>
      */
@@ -174,19 +168,11 @@ public function start(string $id, ?TestSize $size = null, bool $clear = false):
         $this->cachedReport = null;
     }
 
-    /**
-     * @param array<string,list<int>> $linesToBeIgnored
-     */
-    public function stop(bool $append = true, ?TestStatus $status = null, array|false $linesToBeCovered = [], array $linesToBeUsed = [], array $linesToBeIgnored = []): RawCodeCoverageData
+    public function stop(bool $append = true, ?TestStatus $status = null, array|false $linesToBeCovered = [], array $linesToBeUsed = []): RawCodeCoverageData
     {
         $data = $this->driver->stop();
 
-        $this->linesToBeIgnored = array_merge_recursive(
-            $this->linesToBeIgnored,
-            $linesToBeIgnored,
-        );
-
-        $this->append($data, null, $append, $status, $linesToBeCovered, $linesToBeUsed, $linesToBeIgnored);
+        $this->append($data, null, $append, $status, $linesToBeCovered, $linesToBeUsed);
 
         $this->currentId    = null;
         $this->currentSize  = null;
@@ -196,13 +182,11 @@ public function stop(bool $append = true, ?TestStatus $status = null, array|fals
     }
 
     /**
-     * @param array<string,list<int>> $linesToBeIgnored
-     *
      * @throws ReflectionException
      * @throws TestIdMissingException
      * @throws UnintentionallyCoveredCodeException
      */
-    public function append(RawCodeCoverageData $rawData, ?string $id = null, bool $append = true, ?TestStatus $status = null, array|false $linesToBeCovered = [], array $linesToBeUsed = [], array $linesToBeIgnored = []): void
+    public function append(RawCodeCoverageData $rawData, ?string $id = null, bool $append = true, ?TestStatus $status = null, array|false $linesToBeCovered = [], array $linesToBeUsed = []): void
     {
         if ($id === null) {
             $id = $this->currentId;
@@ -229,7 +213,7 @@ public function append(RawCodeCoverageData $rawData, ?string $id = null, bool $a
         $this->applyExecutableLinesFilter($rawData);
 
         if ($this->useAnnotationsForIgnoringCode) {
-            $this->applyIgnoredLinesFilter($rawData, $linesToBeIgnored);
+            $this->applyIgnoredLinesFilter($rawData);
         }
 
         $this->data->initializeUnseenData($rawData);
@@ -452,23 +436,13 @@ private function applyExecutableLinesFilter(RawCodeCoverageData $data): void
         }
     }
 
-    /**
-     * @param array<string,list<int>> $linesToBeIgnored
-     */
-    private function applyIgnoredLinesFilter(RawCodeCoverageData $data, array $linesToBeIgnored): void
+    private function applyIgnoredLinesFilter(RawCodeCoverageData $data): void
     {
         foreach (array_keys($data->lineCoverage()) as $filename) {
             if (!$this->filter->isFile($filename)) {
                 continue;
             }
 
-            if (isset($linesToBeIgnored[$filename])) {
-                $data->removeCoverageDataForLines(
-                    $filename,
-                    $linesToBeIgnored[$filename],
-                );
-            }
-
             $data->removeCoverageDataForLines(
                 $filename,
                 $this->analyser()->ignoredLinesFor($filename),
@@ -494,7 +468,6 @@ private function addUncoveredFilesFromFilter(): void
                         $this->analyser(),
                     ),
                     self::UNCOVERED_FILES,
-                    linesToBeIgnored: $this->linesToBeIgnored,
                 );
             }
         }