Start documentation for Traq 4.0.

4.0/installation.md.phtml

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+---
+title: Install and Upgrade
+crumbs:
+  - "4.0"
+---
+
+## Installation
+
+Installing Traq 4.0 is the same as previous versions.
+
+You will need to setup a database for Traq to use before the installation.
+
+1. Download Traq 4.0 and extract the archive.
+2. Upload the contents of the `upload` directory to your server.
+3. Open the URL to [Traq](https://traq.io) in your browser.
+4. Follow the installation steps.
+5. Rename `htaccess.txt` to `.htaccess` in the root directory of [Traq](https://traq.io).
+
+### From the repository
+
+Installing Traq 4.0 from the repository is trickier than previous versions. You will need [Composer][1], [Node][2],
+[NPM][3] and [Gulp][4].
+
+1. Clone the repository: `git clone https://github.com/nirix/traq`
+2. Install dependencies: `composer install`
+3. Setup `dev` directory: `cd dev && npm install`
+4. Compile assets: `gulp compile`
+
+This change was made to keep the repository clean and remove 3rd party code. There are plans to setup a repository to contain
+the "compiled" Traq 4.0.
+
+## Upgrade
+
+_Not yet relevant._
+
+[1]: https://getcomposer.org
+[2]: https://nodejs.org
+[3]: https://www.npmjs.com/
+[4]: http://gulpjs.com/

4.0/major-changes.md.phtml

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+---
+title: Major Changes
+crumbs:
+  - "4.0"
+---
+
+Traq 4.0 is a complete rewrite from Traq 3.x, the major changes are:
+
+- **PHP 5.5 is required**
+
+    _Traq 4.0 might run on 5.4, but it is not supported._
+
+- **New framework: Avalon 2.0**
+- **PostgreSQL support**
+
+    Avalon 2.0 uses the [Doctrine DBAL][1] which supports more database systems such as PostgreSQL.
+
+- **BCrypt passwords required**
+
+    Anyone logging into a Traq 4.0 installation that was upgraded from Traq 3.x will be required to change their password
+    if they are still using a `sha1` hashed password.
+
+[1]: http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/

index.md.phtml

@@ -2,6 +2,9 @@
 title: Documentation
 ---
 
+* Traq 4.0
+    * [Major changes](<?=Request::basePath('docs/4.0/major-changes')?>)
+    * [Install and Upgrade](<?=Request::basePath('docs/4.0/installation')?>)
 * Traq 3.x
     * [Install and Upgrade](<?=Request::basePath('docs/3.x/installation')?>)
     * [API](<?=Request::basePath('docs/3.x/api')?>)