diff --git a/.upgradenotes/MDL-71326-2024082121203527.yml b/.upgradenotes/MDL-71326-2024082121203527.yml
new file mode 100644
index 00000000000..cc3ee58506c
--- /dev/null
+++ b/.upgradenotes/MDL-71326-2024082121203527.yml
@@ -0,0 +1,14 @@
+issueNumber: MDL-71326
+notes:
+  core:
+    - message: >+
+        - Final deprecation and removal of the following functions:
+          - `plagiarism_plugin::get_configs()`
+          - `plagiarism_plugin::get_file_results()`
+          - `plagiarism_plugin::update_status()`, please use `{plugin name}_before_standard_top_of_body_html` instead.
+        - Final deprecation and removal of `plagiarism_get_file_results()`.
+        Please use `plagiarism_get_links()` instead.
+        - Final deprecation and removal of `plagiarism_update_status()`. Please
+        use `{plugin name}_before_standard_top_of_body_html()` instead.
+
+      type: deprecated
diff --git a/lib/deprecatedlib.php b/lib/deprecatedlib.php
index 6827c070073..8a6eaf02d2a 100644
--- a/lib/deprecatedlib.php
+++ b/lib/deprecatedlib.php
@@ -751,3 +751,29 @@ function reset_password_and_mail($user) {
     // Directly email rather than using the messaging system to ensure its not routed to a popup or jabber.
     return email_to_user($user, $supportuser, $subject, $message);
 }
+
+/**
+ * @deprecated Since Moodle 4.0 MDL-71175. Please use plagiarism_get_links() or plugin specific functions..
+ */
+#[\core\attribute\deprecated(
+    replacement: 'plagiarism_get_links',
+    since: '4.0',
+    mdl: 'MDL-71175',
+    final: true,
+)]
+function plagiarism_get_file_results(): void {
+    \core\deprecation::emit_deprecation_if_present(__FUNCTION__);
+}
+
+/**
+ * @deprecated Since Moodle 4.0 - Please use {plugin name}_before_standard_top_of_body_html instead.
+ */
+#[\core\attribute\deprecated(
+    replacement: '{plugin name}_before_standard_top_of_body_html',
+    since: '4.0',
+    mdl: 'MDL-71175',
+    final: true,
+)]
+function plagiarism_update_status(): void {
+    \core\deprecation::emit_deprecation_if_present(__FUNCTION__);
+}
diff --git a/lib/plagiarismlib.php b/lib/plagiarismlib.php
index 7f1c9f1b827..b2d478b9102 100644
--- a/lib/plagiarismlib.php
+++ b/lib/plagiarismlib.php
@@ -53,67 +53,6 @@ function plagiarism_get_links($linkarray) {
     return '';
 }
 
-/**
- * returns array of plagiarism details about specified file
- *
- * @deprecated Since Moodle 4.0. - this function was a placeholder and not used in core.
- * @todo MDL-71326 This is to be moved from here to deprecatedlib.php in Moodle 4.4
- * @param int $cmid
- * @param int $userid
- * @param object $file moodle file object
- * @return array - sets of details about specified file, one array of details per plagiarism plugin
- *  - each set contains at least 'analyzed', 'score', 'reporturl'
- */
-function plagiarism_get_file_results($cmid, $userid, $file) {
-    global $CFG;
-    $text = 'plagiarism_get_file_results is deprecated, please use plagiarism_get_links() or plugin specific functions.';
-    debugging($text, DEBUG_DEVELOPER);
-    $allresults = array();
-    if (empty($CFG->enableplagiarism)) {
-        return $allresults;
-    }
-    $plagiarismplugins = plagiarism_load_available_plugins();
-    foreach ($plagiarismplugins as $plugin => $dir) {
-        require_once($dir.'/lib.php');
-        $plagiarismclass = "plagiarism_plugin_$plugin";
-        $plagiarismplugin = new $plagiarismclass;
-        $allresults[] = $plagiarismplugin->get_file_results($cmid, $userid, $file);
-    }
-    return $allresults;
-}
-
-/**
- * Allows a plagiarism plugin to print a button/link at the top of activity overview report pages.
- *
- * @deprecated Since Moodle 4.0 - Please use {plugin name}_before_standard_top_of_body_html instead.
- * @todo MDL-71326 Remove this method.
- * @param object $course - full Course object
- * @param object $cm - full cm object
- * @return string
- */
-function plagiarism_update_status($course, $cm) {
-    global $CFG;
-    if (empty($CFG->enableplagiarism)) {
-        return '';
-    }
-    $plagiarismplugins = plagiarism_load_available_plugins();
-    $output = '';
-    foreach ($plagiarismplugins as $plugin => $dir) {
-        require_once($dir.'/lib.php');
-        $plagiarismclass = "plagiarism_plugin_$plugin";
-        $plagiarismplugin = new $plagiarismclass;
-
-        $reflectionmethod = new ReflectionMethod($plagiarismplugin, 'update_status');
-        if ($reflectionmethod->getDeclaringClass()->getName() == get_class($plagiarismplugin)) {
-            $text = 'plagiarism_plugin::update_status() is deprecated.';
-            $text .= ' Use plagiarism_' . $plugin . '_before_standard_top_of_body_html() instead';
-            debugging($text, DEBUG_DEVELOPER);
-        }
-        $output .= $plagiarismplugin->update_status($course, $cm);
-    }
-    return $output;
-}
-
 /**
  * Function that prints the student disclosure notifying that the files will be checked for plagiarism
  * @param integer $cmid - the cmid of this module
diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index ec9d2e2ed53..e45cdedfbc2 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -4598,12 +4598,6 @@ class assign {
 
         $o .= $actionformtext;
 
-        // Plagiarism update status apearring in the grading book.
-        if (!empty($CFG->enableplagiarism)) {
-            require_once($CFG->libdir . '/plagiarismlib.php');
-            $o .= plagiarism_update_status($this->get_course(), $this->get_course_module());
-        }
-
         if ($this->is_blind_marking() && has_capability('mod/assign:viewblinddetails', $this->get_context())) {
             $o .= $this->get_renderer()->notification(get_string('blindmarkingenabledwarning', 'assign'), 'notifymessage');
         }
diff --git a/mod/quiz/classes/local/reports/report_base.php b/mod/quiz/classes/local/reports/report_base.php
index edfac16b31a..6337feb0def 100644
--- a/mod/quiz/classes/local/reports/report_base.php
+++ b/mod/quiz/classes/local/reports/report_base.php
@@ -68,10 +68,6 @@ abstract class report_base {
         if (!$PAGE->has_secondary_navigation()) {
             echo $OUTPUT->heading(format_string($quiz->name, true, ['context' => $context]));
         }
-        if (!empty($CFG->enableplagiarism)) {
-            require_once($CFG->libdir . '/plagiarismlib.php');
-            echo plagiarism_update_status($course, $cm);
-        }
     }
 
     /**
diff --git a/plagiarism/lib.php b/plagiarism/lib.php
index 75753051759..3564db17eaf 100644
--- a/plagiarism/lib.php
+++ b/plagiarism/lib.php
@@ -39,16 +39,6 @@ if (!defined('MOODLE_INTERNAL')) {
  */
 abstract class plagiarism_plugin {
 
-    /**
-     * Return the list of form element names.
-     * @deprecated Since Moodle 4.0 - this function was a placeholder and not used in core.
-     * @todo MDL-71326 Remove this method.
-     * @return array contains the form element names.
-     */
-    public function get_configs() {
-        return array();
-    }
-
     /**
      * hook to allow plagiarism specific information to be displayed beside a submission
      * @param array  $linkarraycontains all relevant information for the plugin to generate a link
@@ -57,21 +47,7 @@ abstract class plagiarism_plugin {
     public function get_links($linkarray) {
         return '';
     }
-    /**
-     * hook to allow plagiarism specific information to be returned unformatted
-     * @deprecated Since Moodle 4.0 - this function was a placeholder and not used in core Moodle code.
-     * @todo MDL-71326 Remove this method.
-     * @param int $cmid
-     * @param int $userid
-     * @param $file file object
-     * @return array containing at least:
-     *   - 'analyzed' - whether the file has been successfully analyzed
-     *   - 'score' - similarity score - ('' if not known)
-     *   - 'reporturl' - url of originality report - '' if unavailable
-     */
-    public function get_file_results($cmid, $userid, $file) {
-        return array('analyzed' => '', 'score' => '', 'reporturl' => '');
-    }
+
     /**
      * hook to allow a disclosure to be printed notifying users what will happen with their submission
      * @param int $cmid - course module id
@@ -79,13 +55,4 @@ abstract class plagiarism_plugin {
      */
     public function print_disclosure($cmid) {
     }
-    /**
-     * hook to allow status of submitted files to be updated - called on grading/report pages.
-     * @deprecated Since Moodle 4.0 - Please use {plugin name}_before_standard_top_of_body_html instead.
-     * @todo MDL-71326 Remove this method.
-     * @param object $course - full Course object
-     * @param object $cm - full cm object
-     */
-    public function update_status($course, $cm) {
-    }
 }