feat: release v3.0.3

  * Update the CHANGELOG.md with v3.0.3 changes.
  * Change version from 3.0.1 to 3.0.3 in various places.

Author: JohnVillalovos

CHANGELOG.md

@@ -1,5 +1,26 @@
 # CHANGELOG
 
+## 3.0.3 - 2025-07-09
+
+### Highlights
+
+* Improvements to the Installation guide at
+  <https://librebooking.readthedocs.io/en/latest/INSTALLATION.html>
+
+### What's Changed
+
+* fix(API): add endpoint to get resource types by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/663>
+* remove old docs by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/665>
+* fix(schedule): datepicker conflicts with url validation by @lucs7 in <https://github.com/LibreBooking/app/pull/661>
+* Fix for #671 / Adjusting css to enable datepicker styling by @lucs7 in <https://github.com/LibreBooking/app/pull/673>
+* doc: remove trailing whitespace from *.rst files by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/674>
+* fix(CustomAttribute): handle invalid data by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/662>
+* fix: allow guests to book reservations by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/668>
+* update(docs): update installation documentation: cloning, composer setup, and database config by @labmecanicatec in <https://github.com/LibreBooking/app/pull/675>
+* docs: add link to API docs, use notes, update PHP version by @JohnVillalovos in <https://github.com/LibreBooking/app/pull/676>
+
+**Full Changelog**: <https://github.com/LibreBooking/app/compare/v3.0.2...v3.0.3>
+
 ## 3.0.2 - 2025-07-07
 
 ### Highlights

SECURITY.md

@@ -6,7 +6,7 @@ Only the most current stable version will receive patches for security vulnerabi
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 3.0.1   | :white_check_mark: |
+| 3.0.3   | :white_check_mark: |
 
 Please report (suspected) security vulnerabilities to
 **[librebooking@outlook.com](mailto:librebooking@outlook.com)**. I will try to

docs/source/conf.py

@@ -9,7 +9,7 @@
 project = "LibreBooking"
 copyright = "2025, The LibreBooking development team"
 author = "The LibreBooking development team"
-release = "3.0.1"
+release = "3.0.3"
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration

lib/Config/Configuration.php

@@ -81,7 +81,7 @@ class Configuration implements IConfiguration
     public const DEFAULT_CONFIG_ID = 'librebooking';
     public const DEFAULT_CONFIG_FILE_PATH = 'config/config.php';
 
-    public const VERSION = '3.0.1';
+    public const VERSION = '3.0.3';
 
     protected function __construct()
     {