diff --git a/includes/admin/load.php b/includes/admin/load.php
index ffd3157d3a..80171061c1 100644
--- a/includes/admin/load.php
+++ b/includes/admin/load.php
@@ -13,7 +13,7 @@
  * Adds the features page to the Settings menu.
  *
  * @since 1.0.0
- * @since n.e.x.t Renamed to perflab_add_features_page().
+ * @since 3.0.0 Renamed to perflab_add_features_page().
  */
 function perflab_add_features_page() {
 	$hook_suffix = add_options_page(
@@ -38,8 +38,8 @@ function perflab_add_features_page() {
  * Initializes functionality for the features page.
  *
  * @since 1.0.0
- * @since n.e.x.t Renamed to perflab_load_features_page(), and the
- *                $module and $hook_suffix parameters were removed.
+ * @since 3.0.0 Renamed to perflab_load_features_page(), and the
+ *              $module and $hook_suffix parameters were removed.
  */
 function perflab_load_features_page() {
 	// Handle script enqueuing for settings page.
@@ -56,7 +56,7 @@ function perflab_load_features_page() {
  * Renders the plugin page.
  *
  * @since 1.0.0
- * @since n.e.x.t Renamed to perflab_render_settings_page().
+ * @since 3.0.0 Renamed to perflab_render_settings_page().
  */
 function perflab_render_settings_page() {
 	?>
@@ -205,7 +205,7 @@ function perflab_dismiss_wp_pointer_wrapper() {
  * Callback function to handle admin scripts.
  *
  * @since 2.8.0
- * @since n.e.x.t Renamed to perflab_enqueue_features_page_scripts().
+ * @since 3.0.0 Renamed to perflab_enqueue_features_page_scripts().
  */
 function perflab_enqueue_features_page_scripts() {
 	// These assets are needed for the "Learn more" popover.
@@ -217,7 +217,7 @@ function perflab_enqueue_features_page_scripts() {
 /**
  * Callback for handling installation/activation of plugin.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  */
 function perflab_install_activate_plugin_callback() {
 	check_admin_referer( 'perflab_install_activate_plugin' );
@@ -312,7 +312,7 @@ function perflab_install_activate_plugin_callback() {
 /**
  * Callback function to handle admin inline style.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  */
 function perflab_print_features_page_style() {
 	?>
diff --git a/includes/site-health/audit-autoloaded-options/helper.php b/includes/site-health/audit-autoloaded-options/helper.php
index 54f92961a8..9d978a5e54 100644
--- a/includes/site-health/audit-autoloaded-options/helper.php
+++ b/includes/site-health/audit-autoloaded-options/helper.php
@@ -195,7 +195,7 @@ function perflab_aao_get_autoloaded_options_table() {
 /**
  * Gets disabled autoload options table.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
@@ -252,7 +252,7 @@ function perflab_aao_get_disabled_autoloaded_options_table() {
 /**
  * Gets the autoload values in the database that should trigger their option to be autoloaded.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  *
  * @return array List of autoload values.
  */
diff --git a/includes/site-health/audit-autoloaded-options/hooks.php b/includes/site-health/audit-autoloaded-options/hooks.php
index db17cec87a..978ffbd5b0 100644
--- a/includes/site-health/audit-autoloaded-options/hooks.php
+++ b/includes/site-health/audit-autoloaded-options/hooks.php
@@ -30,7 +30,7 @@ function perflab_aao_add_autoloaded_options_test( $tests ) {
 /**
  * Register admin actions for handling autoload enable/disable.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  */
 function perflab_aao_register_admin_actions() {
 	add_action( 'admin_action_perflab_aao_update_autoload', 'perflab_aao_handle_update_autoload' );
@@ -40,7 +40,7 @@ function perflab_aao_register_admin_actions() {
 /**
  * Callback for handling disable autoload action.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  */
 function perflab_aao_handle_update_autoload() {
 	check_admin_referer( 'perflab_aao_update_autoload' );
@@ -92,7 +92,7 @@ function perflab_aao_handle_update_autoload() {
 /**
  * Callback function hooked to admin_notices to render admin notices on the site health screen.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  *
  * @global string $pagenow The filename of the current screen.
  */
diff --git a/includes/site-health/load.php b/includes/site-health/load.php
index 8cf164b302..e32d05f8c6 100644
--- a/includes/site-health/load.php
+++ b/includes/site-health/load.php
@@ -3,7 +3,7 @@
  * Site Health checks loader.
  *
  * @package performance-lab
- * @since n.e.x.t
+ * @since 3.0.0
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
diff --git a/load.php b/load.php
index e8624bdda8..7f6e3fccd5 100644
--- a/load.php
+++ b/load.php
@@ -5,7 +5,7 @@
  * Description: Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.
  * Requires at least: 6.4
  * Requires PHP: 7.0
- * Version: 2.9.0
+ * Version: 3.0.0
  * Author: WordPress Performance Team
  * Author URI: https://make.wordpress.org/performance/
  * License: GPLv2 or later
@@ -19,7 +19,7 @@
 	exit; // Exit if accessed directly.
 }
 
-define( 'PERFLAB_VERSION', '2.9.0' );
+define( 'PERFLAB_VERSION', '3.0.0' );
 define( 'PERFLAB_MAIN_FILE', __FILE__ );
 define( 'PERFLAB_PLUGIN_DIR_PATH', plugin_dir_path( PERFLAB_MAIN_FILE ) );
 define( 'PERFLAB_SCREEN', 'performance-lab' );
@@ -46,7 +46,7 @@
  *
  * @since 1.1.0
  * @since 2.9.0 The generator tag now includes the active standalone plugin slugs.
- * @since n.e.x.t The generator tag no longer includes module slugs.
+ * @since 3.0.0 The generator tag no longer includes module slugs.
  */
 function perflab_get_generator_content() {
 	$active_plugins = array();
@@ -81,7 +81,7 @@ function perflab_render_generator() {
 /**
  * Gets the standalone plugins and their data.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  *
  * @return array<string, array{'constant': string, 'experimental'?: bool}> Associative array of $plugin_slug => $plugin_data pairs.
  */
@@ -121,7 +121,7 @@ function perflab_get_standalone_plugin_data() {
  * Gets the standalone plugin constants used for each available standalone plugin.
  *
  * @since 2.9.0
- * @since n.e.x.t The $source parameter was removed.
+ * @since 3.0.0 The $source parameter was removed.
  *
  * @return array<string, string> Map of plugin slug and the version constant used.
  */
@@ -173,7 +173,7 @@ function perflab_maybe_set_object_cache_dropin() {
 	 *
 	 * This filter should not be used outside of tests.
 	 *
-	 * @since n.e.x.t
+	 * @since 3.0.0
 	 * @internal
 	 *
 	 * @param int|bool $current_dropin_version The drop-in version as defined by the
@@ -294,7 +294,7 @@ function perflab_maybe_remove_object_cache_dropin() {
 /**
  * Redirects legacy module page to the performance feature page.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  *
  * @global $plugin_page
  */
@@ -317,7 +317,7 @@ function perflab_no_access_redirect_module_to_performance_feature_page() {
 /**
  * Cleanup function to delete legacy 'perflab_modules_settings' option if present.
  *
- * @since n.e.x.t
+ * @since 3.0.0
  */
 function perflab_cleanup_option() {
 	if ( current_user_can( 'manage_options' ) ) {
diff --git a/plugins/optimization-detective/storage/data.php b/plugins/optimization-detective/storage/data.php
index 8efd96c5c3..9d5adacb3c 100644
--- a/plugins/optimization-detective/storage/data.php
+++ b/plugins/optimization-detective/storage/data.php
@@ -91,7 +91,7 @@ function od_get_normalized_query_vars(): array {
  * This is essentially the REQUEST_URI prefixed by the scheme and host for the home URL.
  * This is needed in particular due to subdirectory installs.
  *
- * @since n.e.x.t
+ * @since 0.1.1
  * @access private
  *
  * @return string Current URL.
diff --git a/readme.txt b/readme.txt
index 89ecb6a77d..8220d483df 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,10 +4,10 @@ Contributors:      wordpressdotorg
 Requires at least: 6.4
 Tested up to:      6.5
 Requires PHP:      7.0
-Stable tag:        2.9.0
+Stable tag:        3.0.0
 License:           GPLv2 or later
 License URI:       https://www.gnu.org/licenses/gpl-2.0.html
-Tags:              performance, images, javascript, site health, measurement, object caching
+Tags:              performance, site health, measurement, optimization, diagnostics
 
 Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.
 
@@ -60,6 +60,24 @@ Contributions are always welcome! Learn more about how to get involved in the [C
 
 == Changelog ==
 
+= 3.0.0 =
+
+**Enhancements**
+
+* Add caching to the wordpress.org query to get plugin information. ([1022](https://github.com/WordPress/performance/pull/1022))
+* Add support for autoloading enhancements in WordPress 6.6 trunk to autoloaded options Site Health check. ([1112](https://github.com/WordPress/performance/pull/1112))
+* Bump minimum required WordPress version to 6.4. ([1062](https://github.com/WordPress/performance/pull/1062))
+* Enhance `object-cache.php` drop-in placement logic to support updating to a newer version of the file. ([1047](https://github.com/WordPress/performance/pull/1047))
+* Implement support for annotating certain plugins as experimental. ([1111](https://github.com/WordPress/performance/pull/1111))
+* Migrate Site Health checks from being modules to becoming part of the plugin core. ([1042](https://github.com/WordPress/performance/pull/1042))
+* Remove modules infrastructure and UI from the plugin. ([1060](https://github.com/WordPress/performance/pull/1060))
+* Support changing autoload value for largest autoloaded options in Site Health check. ([1048](https://github.com/WordPress/performance/pull/1048))
+* Use plugin slug for generator tag. ([1103](https://github.com/WordPress/performance/pull/1103))
+
+**Documentation**
+
+* Update tested WordPress version to 6.5. ([1027](https://github.com/WordPress/performance/pull/1027))
+
 = 2.9.0 =
 
 **Features**