Start adding documentation for changes in phpBB 4.0

Author: marc1706

development/development/changes.rst

@@ -4,26 +4,9 @@ Changes in phpBB
 
 This document outlines changes introduced in different versions of phpBB. These changes may require adjustments to your existing code.
 
-.. list-table::
-   :widths: 25 10 10 55
-   :header-rows: 1
+Contents:
 
-   * - Feature/Function
-     - Introduced in
-     - Deprecated in
-     - Recommendation
-   * - feature_name
-     - X.X.X
-     - 3.3.10
-     - Use alternative_function
-   * - Row 2, column 1
-     - Row 2, column 2
-     - Row 2, column 3
-     - Migrate to new_approach
+.. toctree::
+   :maxdepth: 3
 
-**Explanation of columns:**
-
-* **Feature/Function:**  The name of the feature or function that has a version update.
-* **Introduced (phpBB):** The phpBB version where the change was introduced.
-* **Deprecated (phpBB) (if applicable):** The phpBB version where the feature or function was marked as deprecated (if applicable). If not applicable, use a hyphen (`-`).
-* **Recommendation:** The suggested approach to handle the update. This could involve using an alternative function, migrating code to a new approach, or providing additional information.
+   changes/400

development/development/changes/400.rst

@@ -0,0 +1,103 @@
+=========
+phpBB 4.0
+=========
+
+phpBB 4.0 is a major release that contains backward compatibility breaks and also introduces some deprecations.
+
+.. contents:: Table of Contents
+   :depth: 2
+   :local:
+   :backlinks: none
+
+Basics
+======
+
+PHP
+---
+The minimum required version of PHP for phpBB 4.0 is ``8.1`` with full support for versions ``8.2`` and ``8.3``.
+PHP code that worked with the supported versions of phpBB 3.3 should work with phpBB 4.0 as well but might require minor adjustments.Recommendation
+
+Symfony
+-------
+phpBB 4.0 ships with Symfony 6.4. There are quite a few changes to the standard Symfony version that came with phpBB 3.3.
+The following upgrade guides provides by Symfony might help with resolving some of the issues you might encounter when upgrading
+custom PHP or Extension code for phpBB 4.0:
+
+- `Upgrade Symfony from 3.x to 4.0 <https://github.com/symfony/symfony/blob/4.4/UPGRADE-4.0.md>`_
+- `Upgrade Symfony from 4.4 to 5.0 <https://github.com/symfony/symfony/blob/5.4/UPGRADE-5.0.md>`_
+- `Upgrade Symfony from 5.x to 6.0 <https://github.com/symfony/symfony/blob/6.4/UPGRADE-6.0.md>`_
+
+You can find more upgrade guides in the `Symfony Repository <https://github.com/symfony/symfony/tree/6.4>`_ on GitHub.
+
+Class and function changes
+==========================
+The following table lists class and function changes that might affect custom PHP or Extension code.
+Also have a look at the `phpBB API documentation <https://area51.phpbb.com/docs/code/master/>`_ for further insight into the class and function API in phpBB 4.0.
+
+.. list-table::
+   :widths: 15 15 10 10 50
+   :header-rows: 1
+
+   * - Class or function
+     - Path
+     - Type of change
+     - Version
+     - Recommendation
+   * - ``\phpbb\avatar\driver\remote``
+     - ``phpbb/avatar/driver/remote.php``
+     - Removed
+     - ``4.0.0-a1``
+     - Use alternative avatar like gravatar or upload avatar.
+   * - ``\phpbb\captcha\plugins\incomplete``
+     - ``phpbb/captcha/plugins/incomplete.php``
+     - Added
+     - ``4.0.0-a1``
+     - Placeholder CAPTCHA that prevents e.g. registration until safer captcha like reCAPTCHA or QA is enabled.
+   * - ``\phpbb\captcha\plugins\gd``
+     - ``phpbb/captcha/plugins/gd.php``
+     - Removed
+     - ``4.0.0-a1``
+     - Use safer captcha like reCAPTCHA or QA.
+   * - ``\phpbb\captcha\plugins\gd_wave``
+     - ``phpbb/captcha/plugins/gd_wave.php``
+     - Removed
+     - ``4.0.0-a1``
+     - Use safer captcha like reCAPTCHA or QA.
+   * - ``\phpbb\captcha\plugins\nogd``
+     - ``phpbb/captcha/plugins/nogd.php``
+     - Removed
+     - ``4.0.0-a1``
+     - Use safer captcha like reCAPTCHA or QA.
+   * - ``\phpbb\captcha\char_cube3d``
+     - ``phpbb/captcha/char_cube3d.php``
+     - Removed
+     - ``4.0.0-a1``
+     - No longer used due to removal of gd & nogd CAPTCHAs.
+   * - ``\phpbb\captcha\colour_manager``
+     - ``phpbb/captcha/colour_manager.php``
+     - Removed
+     - ``4.0.0-a1``
+     - No longer used due to removal of gd & nogd CAPTCHAs.
+   * - ``\phpbb\captcha\gd``
+     - ``phpbb/captcha/gd.php``
+     - Removed
+     - ``4.0.0-a1``
+     - No longer used due to removal of gd & nogd CAPTCHAs.
+   * - ``\phpbb\captcha\gd_wave``
+     - ``phpbb/captcha/gd_wave.php``
+     - Removed
+     - ``4.0.0-a1``
+     - No longer used due to removal of gd & nogd CAPTCHAs.
+   * - ``\phpbb\captcha\non_gd``
+     - ``phpbb/captcha/non_gd.php``
+     - Removed
+     - ``4.0.0-a1``
+     - No longer used due to removal of gd & nogd CAPTCHAs.
+
+**Explanation of columns:**
+
+* **Class or function:**  The name of the class or function that was added, changed, deprecated, or removed in this version.
+* **Path:** Path to file.
+* **Type of change:** The type of change, e.g. added, changed, deprecated, or removed in this version.
+* **Version:** Version in which this change was introduced.
+* **Recommendation:** The suggested approach to handle the change. This could involve using an alternative function, migrating code to a new approach, or providing additional information.