diff --git a/CHANGELOG.md b/CHANGELOG.md
index 982fa67..56e105f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,41 @@ Format: [Keep a Changelog 1.1.0](https://keepachangelog.com/en/1.1.0/) — versi
 
 ---
 
+## [0.7.4] — 2026-05-30 — WordPress.org submission cleanup (updater out, LICENSE in)
+
+Walks back the Update URI guard pattern from v0.7.3 and replaces it with the simpler, actually-correct answer: just remove the custom updater entirely. The WordPress.org Plugin Check tool (PCP) raised `plugin_updater_detected` on the v0.7.3 build with the message *"Including An Update Checker / Changing Updates functionality. Plugin Updater detected. Use of the Update URI header is not allowed in plugins hosted on WordPress.org."* PCP scans the source as-shipped, not as-distributed, so the build-time `sed` strip we relied on in v0.7.3 never had a chance to run before the scan — and the scanner flagged both the header and the `inc/updater.php` file itself. Two options remained: (a) keep dancing around PCP with branches and build scripts, or (b) accept that WordPress.org is the canonical update channel once a plugin is hosted there and drop the custom system. We went with (b).
+
+This release also closes the per-file GPL declaration loop by adding a top-level LICENSE file with the full GPL v2 text and explicit GPL header blocks to the CSS and JS assets — every shipped file now declares its license unambiguously.
+
+### Removed
+- **`inc/updater.php`** — the self-hosted Gitea updater. Deleted from the working tree (still recoverable from git history at tag `v0.7.3` if ever needed for a non-wp.org distribution). With the file gone, PCP's `plugin_updater_detected` check is silent.
+- **`Update URI:` header** in `radio.php`. PCP forbids the header in wp.org-hosted plugins, even when its value would legitimately defer updates to wp.org. (The v0.7.3 NOTE block in the file header documenting the strip-on-package pattern was removed along with it.)
+- **`require_once RADIO_PATH . 'inc/updater.php';`** line in `radio.php`. The file no longer exists, so no require is needed.
+- **Updates panel render block + `function_exists()` guard** in `inc/settings.php`. The panel function no longer exists in any build, so the call site is gone. Settings page now ends cleanly at the *Save Changes* button.
+- **"Self-hosted update checker against the Gitea repo"** bullet in the top-level `README.md`. Replaced with *"Updates via WordPress.org (the canonical channel once published)"*.
+- **"Self-hosted updater" bullet** in the `readme.txt` Privacy section. Replaced with a positive statement that updates come from WordPress.org through the normal core update process.
+
+### Added
+- **`LICENSE` file** at the plugin root — verbatim canonical GPL v2 text from `https://www.gnu.org/licenses/gpl-2.0.txt`, 338 lines. The plugin header has always declared GPL v2+ but wp.org reviewers like to see the full text shipped alongside.
+- **GPL header block in `assets/css/radio.css`** (Copyright, GPL v2+ grant, pointer to LICENSE) so the CSS file's licensing is explicit at the file level, not inferred from the plugin header.
+- **GPL header block in `assets/js/radio.js`** — same treatment as the CSS. The original `/** Radio — vanilla JS audio controller. */` opening is preserved verbatim as the "module overview" section below the license header.
+- **GPL header block in `radio.php`'s docblock** — Copyright line + GPL v2+ grant + LICENSE pointer added below the `@package` tag. Sits alongside the existing `License:` / `License URI:` header fields rather than replacing them.
+
+### Changed
+- **`readme.txt` Stable tag** → `0.7.4`.
+- **`inc/about.php` Version history** — v0.7.4 rotated into the "latest" slot; v0.7.3 demoted to a one-liner in the earlier-releases list with a note explaining the walkback.
+- **`RADIO_GITEA_URL` constant** is kept in `radio.php`. It's no longer used by an updater, but `inc/about.php` still uses it to render the *"View the full CHANGELOG.md →"* outbound link on the About page. Linking to a self-hosted source repo as a documentation reference is not the same as running a custom updater — that's fine in wp.org-hosted plugins. ([WordPress.org allows links to external source repos](https://developer.wordpress.org/plugins/wordpress-org/detailed-plugin-guidelines/) — the prohibition is on the update *mechanism*, not on referring to where the source lives.)
+
+### Migration
+- **Existing wp.org installs** (post-acceptance): WordPress core handles updates automatically. Nothing to do.
+- **Existing Gitea-installed copies of v0.7.3 or earlier** (e.g. M5): the `inc/updater.php` file on disk will become orphaned after this update lands on them — it's no longer required from `radio.php`, so it just sits there as a dormant file until the next reinstall. **Recommended path for those installs:** once a-radio is accepted onto WordPress.org, uninstall the Gitea-sourced copy and reinstall from WordPress.org. Future updates then flow through wp.org. Until acceptance, those installs simply stop receiving updates (the v0.7.3 updater code is gone in v0.7.4, so there's nothing to advertise newer versions back to them).
+- **No data loss** in any case: station + volume + theme + history + favourites all live in `user_meta` and survive uninstall/reinstall cycles.
+
+### Why this is the right answer (and v0.7.3 was clever but wrong)
+v0.7.3's Update URI guard pattern reasoned correctly about WordPress core's behaviour — the `Update URI` header genuinely does opt a plugin out of wp.org's update channel, and the runtime guard genuinely would short-circuit the updater on stripped builds. But the whole scheme assumed the reviewer would see the *stripped* build. The Plugin Check tool runs against the *source* artifact — the same source that's in the public repository, that future contributors clone, that automated audits scan. From PCP's point of view, the plugin was "shipping" an updater regardless of what the build script did with it later. The simpler answer (just delete the updater for the wp.org branch) sidesteps that entire class of "the static scanner doesn't know about your build pipeline" problem.
+
+---
+
 ## [0.7.3] — 2026-05-30 — WordPress.org guideline 8 compliance + Privacy section
 
 WordPress.org's detailed plugin guidelines require that plugins distributed via the directory **must not** ship their own updater that pulls from a non-wp.org server (guideline 8). RangerHQ Radio's self-hosted Gitea updater predates the wp.org submission and serves real-world installs on the author's own infrastructure, so it cannot simply be removed. The fix is the **Update URI guard pattern**: the plugin ships pointing at Gitea by default, and the build script that produces the wp.org submission zip strips the `Update URI:` header line. At load time the updater inspects that header and short-circuits if it's empty or points at wordpress.org.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9efa6fb
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,338 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
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+You may charge a fee for the physical act of transferring a copy, and
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+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Moe Ghoul>, 1 April 1989
+  Moe Ghoul, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/README.md b/README.md
index 840d7be..88bdd26 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ A small, focused, free WordPress plugin that drops a SomaFM radio player into yo
 - Dedicated page at **WP Admin → Radio → My Radio**
 - Plays via HTML5 `<audio>` — no proxy server, no third-party tracking
 - Per-user state: each admin remembers their own station + volume
-- Self-hosted update checker against the Gitea repo
+- Updates via WordPress.org (the canonical channel once published)
 
 ## Installation
 
diff --git a/assets/css/radio.css b/assets/css/radio.css
index 1cffc5c..ee1f8fc 100644
--- a/assets/css/radio.css
+++ b/assets/css/radio.css
@@ -1,4 +1,14 @@
-/* Radio — admin styles, WordPress-native */
+/*!
+ * RangerHQ Radio — admin styles, WordPress-native.
+ *
+ * Copyright (C) 2026 David Keane
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version. See LICENSE in the plugin root
+ * for the full text, or visit https://www.gnu.org/licenses/gpl-2.0.html
+ */
 
 /* ──────────────────────────────────────────────────────────────────
  * Player layout (works inside .postbox .inside on main page,
diff --git a/assets/js/radio.js b/assets/js/radio.js
index 6e3044d..6314632 100644
--- a/assets/js/radio.js
+++ b/assets/js/radio.js
@@ -1,5 +1,15 @@
-/**
- * Radio — vanilla JS audio controller.
+/*!
+ * RangerHQ Radio — vanilla JS audio controller.
+ *
+ * Copyright (C) 2026 David Keane
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version. See LICENSE in the plugin root
+ * for the full text, or visit https://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * --- module overview ---
  *
  * Binds to every `.radio-player` element on the page (dashboard widget
  * + main page can co-exist; both share one logical audio session per
diff --git a/inc/about.php b/inc/about.php
index 7518331..ed91790 100644
--- a/inc/about.php
+++ b/inc/about.php
@@ -79,14 +79,15 @@ function radio_render_about_page() {
             <h2><?php esc_html_e( 'Version history', 'a-radio' ); ?></h2>
 
             <div class="radio-about-versions__latest">
-                <span class="ver">v0.7.3</span> &mdash; 30 May 2026 <span class="latest"><?php esc_html_e( 'latest', 'a-radio' ); ?></span>
+                <span class="ver">v0.7.4</span> &mdash; 30 May 2026 <span class="latest"><?php esc_html_e( 'latest', 'a-radio' ); ?></span>
                 <p>
-                    <?php esc_html_e( 'WordPress.org guideline 8 compliance + Privacy documentation. Added Update URI header so installs from the author\'s Gitea keep receiving updates from there, while wp.org-distributed copies (where the build strips that header line) hand update delivery to WordPress.org — the self-hosted updater short-circuits at load time and the Updates panel hides automatically. Added a dedicated Privacy section to readme covering every outbound connection (none from the plugin itself; SomaFM audio + 30-second songs.json poll only while playing). Added explicit link to SomaFM terms of use. No user-visible behaviour changes.', 'a-radio' ); ?>
+                    <?php esc_html_e( 'WordPress.org submission cleanup. Removed the self-hosted Gitea updater (`inc/updater.php`) and the `Update URI` header from `radio.php` — WordPress.org explicitly disallows both for hosted plugins (Plugin Check `plugin_updater_detected`). Updates now flow through WordPress.org as the canonical channel. Added a top-level LICENSE file with the full GPL v2 text and GPL header blocks to the CSS and JS assets so the licensing of every shipped file is explicit. No user-visible behaviour changes for the player — only the small `Updates` panel that used to sit at the bottom of Radio → Settings is gone.', 'a-radio' ); ?>
                 </p>
             </div>
 
             <h3><?php esc_html_e( 'Earlier releases', 'a-radio' ); ?></h3>
             <ul class="radio-about-versions__earlier">
+                <li><span class="ver">v0.7.3</span> <span class="ver-date">30 May 2026</span> &mdash; <?php esc_html_e( 'Privacy section in readme + SomaFM terms-of-use link (Update URI guard pattern from this release was walked back in v0.7.4 — Plugin Check disallows it for wp.org-hosted plugins regardless of header value)', 'a-radio' ); ?></li>
                 <li><span class="ver">v0.7.2</span> <span class="ver-date">30 May 2026</span> &mdash; <?php esc_html_e( 'Screenshots + correct wp.org contributor handle (ir240474)', 'a-radio' ); ?></li>
                 <li><span class="ver">v0.7.1</span> <span class="ver-date">30 May 2026</span> &mdash; <?php esc_html_e( 'Plugin Check follow-up — Tested-up-to bumped to 7.0, .DS_Store re-cleanup', 'a-radio' ); ?></li>
                 <li><span class="ver">v0.7.0</span> <span class="ver-date">30 May 2026</span> &mdash; <?php esc_html_e( 'WordPress.org submission prep — full Plugin Check clean (169 → 4 issues, branding, textdomain, security, popup refactor, readme.txt)', 'a-radio' ); ?></li>
diff --git a/inc/settings.php b/inc/settings.php
index 1158ff0..ed6c54d 100644
--- a/inc/settings.php
+++ b/inc/settings.php
@@ -3,8 +3,7 @@
  * Radio — Settings page.
  *
  * Lets the user pick default station + volume + theme + dashboard
- * widget opt-out. Renders the Updates panel from `updater.php` at the
- * bottom.
+ * widget opt-out.
  */
 
 if ( ! defined( 'ABSPATH' ) ) { exit; }
@@ -121,17 +120,6 @@ function radio_render_settings_page() {
 
             <?php submit_button( __( 'Save Changes', 'a-radio' ), 'primary', 'radio_settings_submit' ); ?>
         </form>
-
-        <?php
-        // Updates panel — only manage_options users see it, and only when
-        // the custom updater is active (i.e. self-hosted Gitea install,
-        // NOT when distributed via wp.org where wp.org handles updates).
-        // The function is undefined when updater.php short-circuited at
-        // load time per wp.org guideline 8 — hence the function_exists() check.
-        if ( current_user_can( 'manage_options' ) && function_exists( 'radio_render_updates_panel' ) ) {
-            radio_render_updates_panel();
-        }
-        ?>
     </div>
     <?php
 }
diff --git a/inc/updater.php b/inc/updater.php
deleted file mode 100644
index ae8cf58..0000000
--- a/inc/updater.php
+++ /dev/null
@@ -1,281 +0,0 @@
-<?php
-/**
- * Radio — self-hosted update checker against the Gitea repo.
- *
- * Direct port of the Buddy / Logbook updater (proven in production).
- * Polls Gitea's /releases/latest, falls back to /tags?limit=1 when no
- * formal Release object exists, compares against RADIO_VERSION,
- * renders an Updates panel on the Settings page. Cached 12h on
- * success, 1h on negative responses.
- *
- * Repo coordinates are constants you can override via define() in
- * wp-config.php if the repo ever moves.
- */
-
-if ( ! defined( 'ABSPATH' ) ) { exit; }
-
-/**
- * v0.7.3 — wp.org guideline 8 guard.
- *
- * If the plugin's `Update URI:` header is empty or points to wordpress.org,
- * the plugin is being distributed via WordPress.org and core handles updates.
- * In that case the self-hosted updater MUST stay dormant — serving updates
- * from a non-wp.org server is explicitly prohibited by guideline 8.
- *
- * When `Update URI` points at our Gitea (the default for self-hosted /
- * pre-submission installs), wp.org skips this plugin and our updater runs
- * normally.
- *
- * The submission build script strips the `Update URI:` line from
- * `radio.php` so this check trips and the entire updater becomes a no-op.
- */
-function radio_should_skip_custom_updater() {
-    static $cached = null;
-    if ( null !== $cached ) { return $cached; }
-    if ( ! defined( 'RADIO_FILE' ) || ! function_exists( 'get_file_data' ) ) {
-        $cached = false;
-        return $cached;
-    }
-    $data = get_file_data( RADIO_FILE, array( 'UpdateURI' => 'Update URI' ) );
-    $uri  = isset( $data['UpdateURI'] ) ? trim( $data['UpdateURI'] ) : '';
-    if ( '' === $uri )                                         { $cached = true;  return $cached; } // empty → wp.org default
-    if ( false !== stripos( $uri, 'wordpress.org' ) )          { $cached = true;  return $cached; } // explicit wp.org
-    $cached = false; // points at Gitea / other → custom updater runs
-    return $cached;
-}
-
-// Short-circuit: stop here entirely if wp.org is handling updates.
-if ( radio_should_skip_custom_updater() ) { return; }
-
-if ( ! defined( 'RADIO_GITEA_HOST' ) )  { define( 'RADIO_GITEA_HOST',  'https://git.davidtkeane.com' ); }
-if ( ! defined( 'RADIO_GITEA_OWNER' ) ) { define( 'RADIO_GITEA_OWNER', 'ranger' ); }
-if ( ! defined( 'RADIO_GITEA_REPO' ) )  { define( 'RADIO_GITEA_REPO',  'a-radio' ); }
-
-function radio_gitea_repo_url() {
-    return RADIO_GITEA_HOST . '/' . RADIO_GITEA_OWNER . '/' . RADIO_GITEA_REPO;
-}
-function radio_gitea_releases_url() {
-    return radio_gitea_repo_url() . '/releases';
-}
-
-/**
- * Fetch the latest release/tag, normalised. Returns null on hard
- * error, or an array including `version`.
- */
-function radio_fetch_latest_release( $force_refresh = false ) {
-    $cache_key = 'radio_gitea_latest';
-
-    if ( ! $force_refresh ) {
-        $cached = get_site_transient( $cache_key );
-        if ( is_array( $cached ) ) { return $cached; }
-    }
-
-    $base_api = RADIO_GITEA_HOST . '/api/v1/repos/' . RADIO_GITEA_OWNER . '/' . RADIO_GITEA_REPO;
-
-    // Try formal Release first.
-    $response = wp_remote_get( $base_api . '/releases/latest', array( 'timeout' => 8 ) );
-    if ( is_wp_error( $response ) ) { return null; }
-
-    $code = (int) wp_remote_retrieve_response_code( $response );
-    $body = ( $code === 200 ) ? json_decode( wp_remote_retrieve_body( $response ), true ) : null;
-
-    // Fallback to /tags if no Release object exists yet.
-    if ( $code !== 200 || ! is_array( $body ) || empty( $body['tag_name'] ) ) {
-        $tags_response = wp_remote_get( $base_api . '/tags?limit=1', array( 'timeout' => 8 ) );
-        if ( ! is_wp_error( $tags_response )
-            && (int) wp_remote_retrieve_response_code( $tags_response ) === 200 ) {
-            $tags = json_decode( wp_remote_retrieve_body( $tags_response ), true );
-            if ( is_array( $tags ) && ! empty( $tags[0]['name'] ) ) {
-                $body = array(
-                    'tag_name'     => $tags[0]['name'],
-                    'html_url'     => radio_gitea_repo_url() . '/src/tag/' . rawurlencode( $tags[0]['name'] ),
-                    'body'         => isset( $tags[0]['message'] ) ? $tags[0]['message'] : '',
-                    'published_at' => isset( $tags[0]['commit']['created'] ) ? $tags[0]['commit']['created'] : null,
-                    'assets'       => array(),
-                );
-                $code = 200;
-            }
-        }
-    }
-
-    if ( $code !== 200 || ! is_array( $body ) || empty( $body['tag_name'] ) ) {
-        $info = array(
-            'version'      => null,
-            'html_url'     => radio_gitea_releases_url(),
-            'download_url' => null,
-            'body'         => '',
-            'published_at' => null,
-            'error_code'   => $code,
-        );
-        set_site_transient( $cache_key, $info, HOUR_IN_SECONDS );
-        return $info;
-    }
-
-    $version = ltrim( (string) $body['tag_name'], 'vV' );
-
-    // Prefer a .zip asset; fall back to Gitea source-archive URL.
-    $download_url = null;
-    if ( ! empty( $body['assets'] ) && is_array( $body['assets'] ) ) {
-        foreach ( $body['assets'] as $asset ) {
-            if ( isset( $asset['name'], $asset['browser_download_url'] )
-                && substr( strtolower( $asset['name'] ), -4 ) === '.zip' ) {
-                $download_url = $asset['browser_download_url'];
-                break;
-            }
-        }
-    }
-    if ( ! $download_url ) {
-        $download_url = radio_gitea_repo_url() . '/archive/' . rawurlencode( $body['tag_name'] ) . '.zip';
-    }
-
-    $info = array(
-        'version'      => $version,
-        'html_url'     => isset( $body['html_url'] ) ? esc_url_raw( $body['html_url'] ) : '',
-        'download_url' => esc_url_raw( $download_url ),
-        'body'         => isset( $body['body'] ) ? wp_strip_all_tags( $body['body'] ) : '',
-        'published_at' => isset( $body['published_at'] ) ? $body['published_at'] : null,
-    );
-
-    set_site_transient( $cache_key, $info, 12 * HOUR_IN_SECONDS );
-    return $info;
-}
-
-function radio_update_status( $force_refresh = false ) {
-    $current = defined( 'RADIO_VERSION' ) ? RADIO_VERSION : '0.0.0';
-    $latest  = radio_fetch_latest_release( $force_refresh );
-
-    if ( ! $latest || empty( $latest['version'] ) ) {
-        $msg = __( 'No releases tagged on the Gitea repo yet.', 'a-radio' );
-        if ( $latest && ! empty( $latest['error_code'] ) && (int) $latest['error_code'] !== 404 ) {
-            /* translators: %d = HTTP status code returned by the Gitea API */
-            $msg = sprintf( __( 'Could not reach Gitea (HTTP %d). Try again in a few minutes.', 'a-radio' ), (int) $latest['error_code'] );
-        }
-        return array(
-            'status'   => 'unknown',
-            'current'  => $current,
-            'message'  => $msg,
-            'repo_url' => radio_gitea_repo_url(),
-        );
-    }
-
-    if ( version_compare( $latest['version'], $current, '>' ) ) {
-        return array(
-            'status'       => 'available',
-            'current'      => $current,
-            'latest'       => $latest['version'],
-            'html_url'     => $latest['html_url'],
-            'download_url' => $latest['download_url'],
-            'published_at' => $latest['published_at'],
-            'body'         => $latest['body'],
-            /* translators: 1: latest version available; 2: version currently installed */
-            'message'      => sprintf( __( 'A new version (v%1$s) is available — you are on v%2$s.', 'a-radio' ), $latest['version'], $current ),
-        );
-    }
-
-    return array(
-        'status'   => 'up-to-date',
-        'current'  => $current,
-        'latest'   => $latest['version'],
-        /* translators: %s = current installed version */
-        'message'  => sprintf( __( 'You are up to date (v%s).', 'a-radio' ), $current ),
-        'repo_url' => radio_gitea_repo_url(),
-    );
-}
-
-add_action( 'wp_ajax_radio_check_updates', 'radio_ajax_check_updates' );
-function radio_ajax_check_updates() {
-    if ( ! current_user_can( 'manage_options' ) ) {
-        wp_send_json_error( 'Insufficient permissions.', 403 );
-    }
-    check_ajax_referer( 'radio_check_updates', 'nonce' );
-    delete_site_transient( 'radio_gitea_latest' );
-    wp_send_json_success( radio_update_status( true ) );
-}
-
-function radio_render_updates_panel() {
-    $status   = radio_update_status( false );
-    $nonce    = wp_create_nonce( 'radio_check_updates' );
-    $repo_url = radio_gitea_repo_url();
-    $rel_url  = radio_gitea_releases_url();
-    ?>
-    <div class="radio-updates" style="max-width:720px; margin-top:24px; padding:18px 20px; background:#fff; border:1px solid #ccd0d4; border-radius:4px;">
-        <h2 style="margin-top:0;"><?php esc_html_e( 'Updates', 'a-radio' ); ?></h2>
-        <p style="margin:0 0 12px;">
-            <?php esc_html_e( 'Radio is self-hosted on Gitea. Click Check now to ask the repo whether there is a newer release than the one you are running.', 'a-radio' ); ?>
-        </p>
-
-        <p id="radio-update-status" style="margin:0 0 12px;">
-            <strong><?php esc_html_e( 'Status:', 'a-radio' ); ?></strong>
-            <span id="radio-update-status-text"><?php echo esc_html( $status['message'] ); ?></span>
-            <?php if ( $status['status'] === 'available' && ! empty( $status['download_url'] ) ) : ?>
-                <br>
-                <a href="<?php echo esc_url( $status['download_url'] ); ?>" class="button button-primary" style="margin-top:8px;">
-                    <?php
-                    /* translators: %s is the latest version number, e.g. "0.2.0" */
-                    /* translators: %s = latest available version number, e.g. "0.7.0" */
-                    echo esc_html( sprintf( __( 'Download v%s (.zip)', 'a-radio' ), $status['latest'] ) );
-                    ?>
-                </a>
-                <?php if ( ! empty( $status['html_url'] ) ) : ?>
-                    <a href="<?php echo esc_url( $status['html_url'] ); ?>" target="_blank" rel="noopener" style="margin-left:8px;"><?php esc_html_e( 'View release notes →', 'a-radio' ); ?></a>
-                <?php endif; ?>
-            <?php endif; ?>
-        </p>
-
-        <p style="margin:0 0 4px;">
-            <button type="button" id="radio-check-updates-btn" class="button" data-nonce="<?php echo esc_attr( $nonce ); ?>">
-                ↻ <?php esc_html_e( 'Check now', 'a-radio' ); ?>
-            </button>
-            <a href="<?php echo esc_url( $repo_url ); ?>" target="_blank" rel="noopener" class="button" style="margin-left:6px;"><?php esc_html_e( 'View on Gitea', 'a-radio' ); ?></a>
-            <a href="<?php echo esc_url( $rel_url ); ?>"  target="_blank" rel="noopener" class="button" style="margin-left:6px;"><?php esc_html_e( 'View all releases', 'a-radio' ); ?></a>
-        </p>
-        <p style="margin:10px 0 0; color:#646970; font-size:12px;">
-            <?php esc_html_e( 'Manual update path: download the .zip, deactivate the plugin in WordPress, upload via Plugins → Add New → Upload, reactivate. Your settings survive the upgrade (state is stored in user_meta).', 'a-radio' ); ?>
-        </p>
-
-        <?php if ( defined( 'RADIO_SUPPORT_URL' ) && RADIO_SUPPORT_URL ) : ?>
-            <a class="radio-support-link" href="<?php echo esc_url( RADIO_SUPPORT_URL ); ?>" target="_blank" rel="noopener">
-                <?php esc_html_e( 'Like Radio? If You fancy to buy me a coffee →', 'a-radio' ); ?>
-            </a>
-        <?php endif; ?>
-    </div>
-
-    <script>
-    (function () {
-        var btn = document.getElementById('radio-check-updates-btn');
-        var statusText = document.getElementById('radio-update-status-text');
-        if (!btn || !statusText) { return; }
-
-        btn.addEventListener('click', function () {
-            var nonce = btn.getAttribute('data-nonce');
-            btn.disabled = true;
-            var orig = btn.textContent;
-            btn.textContent = '↻ Checking…';
-            statusText.textContent = 'Asking Gitea…';
-
-            var fd = new FormData();
-            fd.append('action', 'radio_check_updates');
-            fd.append('nonce',  nonce);
-
-            fetch(ajaxurl, { method: 'POST', credentials: 'same-origin', body: fd })
-                .then(function (r) { return r.json(); })
-                .then(function (res) {
-                    if (!res || !res.success) {
-                        statusText.textContent = (res && res.data) ? String(res.data) : 'Check failed.';
-                    } else {
-                        statusText.textContent = res.data.message || 'Check complete.';
-                        if (res.data.status === 'available' && res.data.download_url) {
-                            setTimeout(function () { window.location.reload(); }, 400);
-                        }
-                    }
-                })
-                .catch(function () { statusText.textContent = 'Network error — try again in a moment.'; })
-                .finally(function () {
-                    btn.disabled = false;
-                    btn.textContent = orig;
-                });
-        });
-    })();
-    </script>
-    <?php
-}
diff --git a/radio.php b/radio.php
index e9560c0..8d43ed8 100644
--- a/radio.php
+++ b/radio.php
@@ -5,7 +5,7 @@
  * Plugin Name: RangerHQ Radio
  * Plugin URI:  https://icanhelp.ie/radio
  * Description: A small, focused internet radio player for your WordPress admin. 44 hand-curated stations from SomaFM across 10 genres — ambient, electronic, lounge, rock, metal, jazz, world, reggae, holiday, specials. Plays via HTML5 audio; per-user station + volume + history + favourites; pop-out window for continuous background play.
- * Version:     0.7.3
+ * Version:     0.7.4
  * Requires at least: 5.3
  * Requires PHP: 7.4
  * Author:      David Keane
@@ -13,24 +13,21 @@
  * License:     GPL v2 or later
  * License URI: https://www.gnu.org/licenses/gpl-2.0.html
  * Text Domain: a-radio
- * Update URI: https://git.davidtkeane.com/ranger/a-radio
  *
  * @package RangerHQ_Radio
  *
- * NOTE on `Update URI:` (wp.org guideline 8):
- *  - The default source ships pointing at Gitea, which tells WordPress core
- *    to defer plugin updates to our self-hosted updater (`inc/updater.php`).
- *  - When packaging the submission zip for WordPress.org, the build script
- *    STRIPS this `Update URI:` line. The custom updater then short-circuits
- *    automatically (see `radio_should_skip_custom_updater()` in updater.php)
- *    and WordPress.org takes over update delivery, as required by guideline 8.
- *  - Strip command: `sed -i '' '/^ \* Update URI:/d' radio.php` before zipping.
+ * Copyright (C) 2026 David Keane
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version. See LICENSE for the full text.
  */
 
 if ( ! defined( 'ABSPATH' ) ) { exit; }
 
 // Plugin coordinates.
-if ( ! defined( 'RADIO_VERSION' ) )     { define( 'RADIO_VERSION',     '0.7.3' ); }
+if ( ! defined( 'RADIO_VERSION' ) )     { define( 'RADIO_VERSION',     '0.7.4' ); }
 if ( ! defined( 'RADIO_FILE' ) )        { define( 'RADIO_FILE',        __FILE__ ); }
 if ( ! defined( 'RADIO_PATH' ) )        { define( 'RADIO_PATH',        plugin_dir_path( __FILE__ ) ); }
 if ( ! defined( 'RADIO_URL' ) )         { define( 'RADIO_URL',         plugin_dir_url( __FILE__ ) ); }
@@ -46,7 +43,6 @@ require_once RADIO_PATH . 'inc/admin-page.php';       // dedicated Radio admin p
 require_once RADIO_PATH . 'inc/about.php';            // About page
 require_once RADIO_PATH . 'inc/settings.php';         // Settings page
 require_once RADIO_PATH . 'inc/history.php';          // Track history + favourites (v0.5.0)
-require_once RADIO_PATH . 'inc/updater.php';          // self-hosted update checker against Gitea
 
 /**
  * Admin menu registration. Radio gets its own top-level menu — having
diff --git a/readme.txt b/readme.txt
index 30e6bd7..bf18cde 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://buymeacoffee.com/davidtkeane
 Tags: radio, music, audio, internet radio, background music
 Requires at least: 5.3
 Tested up to: 7.0
-Stable tag: 0.7.3
+Stable tag: 0.7.4
 Requires PHP: 7.4
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -42,7 +42,7 @@ RangerHQ Radio is privacy-respecting by design:
 * **Current-track display** polls SomaFM's public songs endpoint (`https://somafm.com/songs/{station}.json`) every 30 seconds **while audio is playing**. The plugin sends no identifying information with this request. Polling stops the moment you pause.
 * **Search-provider links** (Spotify / YouTube / Apple Music / Bandcamp) are outbound only. Clicking one opens a new tab with a search URL on that service — the plugin sends no data and stores no information about which links you click.
 * **No third-party JavaScript** is loaded from outside your own server. All scripts ship inside the plugin.
-* **Self-hosted updater** (`inc/updater.php`) is included in the WordPress.org distribution but is automatically disabled — WordPress.org handles updates per the directory guidelines. The code is only active when the plugin is installed from the author's own Gitea instance.
+* **Updates** come from WordPress.org through the normal WordPress core update process. The plugin does not contact any other update server.
 
 If you do not want any third-party traffic at all, simply do not press Play.
 
@@ -86,6 +86,9 @@ SomaFM's track-info endpoint (`somafm.com/songs/{station}.json`) is fetched best
 
 == Changelog ==
 
+= 0.7.4 =
+* WordPress.org submission cleanup. Removed the self-hosted Gitea updater (`inc/updater.php`) and the `Update URI` header from `radio.php`. WordPress.org explicitly disallows both for hosted plugins (Plugin Check `plugin_updater_detected`), so updates now flow through WordPress.org as the canonical channel. Added a top-level `LICENSE` file with the full GPL v2 text and explicit GPL header blocks to `assets/css/radio.css` and `assets/js/radio.js` so the licensing of every shipped file is unambiguous. The small `Updates` panel that used to sit at the bottom of Radio → Settings is gone; player behaviour is unchanged.
+
 = 0.7.3 =
 * WordPress.org guideline 8 compliance + Privacy documentation. Added `Update URI: https://git.davidtkeane.com/ranger/a-radio` header so installs from the author's Gitea continue to receive updates from there, while wp.org-distributed copies (where the build script strips this line) hand update delivery to WordPress.org — the self-hosted updater short-circuits at load time and the Updates panel hides automatically. Added a dedicated `== Privacy ==` section to the readme covering every outbound connection (none from the plugin itself; SomaFM audio + 30-second songs.json poll while playing). Added explicit link to SomaFM's terms of use at https://somafm.com/legal/. No user-visible behaviour changes.
 
@@ -127,6 +130,9 @@ SomaFM's track-info endpoint (`somafm.com/songs/{station}.json`) is fetched best
 
 == Upgrade Notice ==
 
+= 0.7.4 =
+WordPress.org submission cleanup — removes the disallowed self-hosted updater + `Update URI` header. Adds LICENSE file + per-asset GPL headers. The `Updates` panel in Settings is gone (WordPress.org handles updates now). No player behaviour changes.
+
 = 0.7.3 =
 WordPress.org submission compliance — adds `Update URI` header so the self-hosted updater stays dormant on wp.org installs (guideline 8). Adds Privacy section + SomaFM terms link. No user-visible changes.