diff --git a/README.md b/README.md
index da2fa118..47fe479b 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,17 @@ server is properly synchronized with the time servers.
 
 ## Changelog
 
+v5.1.5
+
+- Bugfix: Add PNG/SVG calendar icon for Moodle 4.3 #558 (thanks @ScottVerbeek)
+- Bugfix: Display user fullname in breakout room participant list #562 (thanks @mofetdanielsmolkin)
+- Bugfix: Sort session report by start time #567
+- Code quality: Namespace CSS identifiers #560 (thanks @danielcifuentesopen)
+- Code quality: Optimize SVGs #561 (thanks @jakearchibald for SVGOMG)
+- Code quality: Remove long-forgotten todo PHPDoc tags causing warnings in moodle-cs v3.3.13
+- Regression: Registration field default was accidentally upgrading to null #565 (thanks @michael-milette)
+  - Introduced in v5.1.0 when fixing recording field definition.
+
 v5.1.4
 
 - Bugfix: Avoid breaking completion defaults form in Moodle 4.3 #555 (thanks @opitz)
diff --git a/lib.php b/lib.php
index 0a02ff36..59973563 100755
--- a/lib.php
+++ b/lib.php
@@ -443,7 +443,6 @@ function zoom_refresh_events($courseid, $zoom, $cm) {
  * @param bool $viewfullnames Should we display full names
  * @param int $timestart Print activity since this timestamp
  * @return boolean True if anything was printed, otherwise false
- * @todo implement this function
  */
 function zoom_print_recent_activity($course, $viewfullnames, $timestart) {
     return false;
@@ -465,7 +464,6 @@ function zoom_print_recent_activity($course, $viewfullnames, $timestart) {
  * @param int $cmid course module id
  * @param int $userid check for a particular user's activity only, defaults to 0 (all users)
  * @param int $groupid check for a particular group's activity only, defaults to 0 (all groups)
- * @todo implement this function
  */
 function zoom_get_recent_mod_activity(&$activities, &$index, $timestart, $courseid, $cmid, $userid = 0, $groupid = 0) {
 }
@@ -478,7 +476,6 @@ function zoom_get_recent_mod_activity(&$activities, &$index, $timestart, $course
  * @param bool $detail print detailed report
  * @param array $modnames as returned by get_module_types_names()
  * @param bool $viewfullnames display users' full names
- * @todo implement this function
  */
 function zoom_print_recent_mod_activity($activity, $courseid, $detail, $modnames, $viewfullnames) {
 }
@@ -490,7 +487,6 @@ function zoom_print_recent_mod_activity($activity, $courseid, $detail, $modnames
  * module uses that capability.
  *
  * @return array
- * @todo implement this function
  */
 function zoom_get_extra_capabilities() {
     return [];
@@ -905,7 +901,6 @@ function zoom_reset_course_form_defaults($course) {
  * @param stdClass $cm
  * @param stdClass $context
  * @return array of [(string)filearea] => (string)description
- * @todo implement this function
  */
 function zoom_get_file_areas($course, $cm, $context) {
     return [];
@@ -927,7 +922,6 @@ function zoom_get_file_areas($course, $cm, $context) {
  * @param string $filepath
  * @param string $filename
  * @return file_info instance or null if not found
- * @todo implement this function
  */
 function zoom_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {
     return null;
@@ -968,7 +962,6 @@ function zoom_pluginfile($course, $cm, $context, $filearea, array $args, $forced
  * @param stdClass $course current course record
  * @param stdClass $module current zoom instance record
  * @param cm_info $cm course module information
- * @todo implement this function
  */
 function zoom_extend_navigation(navigation_node $navref, stdClass $course, stdClass $module, cm_info $cm) {
 }
@@ -981,7 +974,6 @@ function zoom_extend_navigation(navigation_node $navref, stdClass $course, stdCl
  *
  * @param settings_navigation $settingsnav complete settings navigation tree
  * @param navigation_node $zoomnode zoom administration node
- * @todo implement this function
  */
 function zoom_extend_settings_navigation(settings_navigation $settingsnav, navigation_node $zoomnode = null) {
 }
diff --git a/version.php b/version.php
index 62d6a42d..9938caf8 100755
--- a/version.php
+++ b/version.php
@@ -26,7 +26,7 @@
 
 $plugin->component = 'mod_zoom';
 $plugin->version = 2024012500;
-$plugin->release = 'v5.1.4';
+$plugin->release = 'v5.1.5';
 $plugin->requires = 2019052000;
 $plugin->maturity = MATURITY_STABLE;
 $plugin->cron = 0;