Create 5.2 branch

pages/22.upgrading/03.51-to-52/01.changelog/docs.md

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+---
+title: What's new in 5.2
+metadata:
+    description: A detailed look at what's new in UserFrosting 5.2
+taxonomy:
+    category: docs
+---
+
+UserFrosting 5.2 focuses on... <!-- TODO -->
+
+## Changed Requirements
+UserFrosting 5.2... <!-- TODO -->
+
+## Upgraded Dependencies
+<!-- TODO -->
+
+## Detailed changes
+Changes generally applied across UserFrosting includes : 
+<!-- TODO -->
+
+### UserFrosting Framework
+<!-- TODO -->
+
+### Core sprinkle
+<!-- TODO -->
+
+### Account sprinkle
+<!-- TODO -->
+
+### Admin Sprinkle
+<!-- TODO -->
+
+### AdminLTE theme
+<!-- TODO -->
+
+## Complete change Log
+
+See the changelog of each component for the complete list of changes included in this release.
+- [Skeleton](https://github.com/userfrosting/UserFrosting/blob/5.2/CHANGELOG.md#520)
+- [Framework](https://github.com/userfrosting/framework/blob/5.2/CHANGELOG.md#520)
+- [Core sprinkle](https://github.com/userfrosting/sprinkle-core/blob/5.2/CHANGELOG.md#520)
+- [Account sprinkle](https://github.com/userfrosting/sprinkle-account/blob/5.2/CHANGELOG.md#520)
+- [Admin sprinkle](https://github.com/userfrosting/sprinkle-admin/blob/5.2/CHANGELOG.md#520)
+- [AdminLTE sprinkle](https://github.com/userfrosting/theme-adminlte/blob/5.2/CHANGELOG.md#520)
+
+## Migrating
+
+Now that we've cover the basics changes, follow on to the next pages to the steps required to bring your app up to date with UserFrosting 5.2.

pages/22.upgrading/03.51-to-52/02.guide/docs.md

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+---
+title: Upgrade Guide
+metadata:
+    description: Upgrade guide from version 5.1.x to 5.2.x
+taxonomy:
+    category: docs
+---
+
+## Dependencies
+### Composer
+
+Upgrading UserFrosting to `5.1.x` from `5.2.x` is as simple as updating your `composer.json` file and fetching updated dependencies! First, you'll need to edit your `composer.json`.
+
+Update from : 
+```json
+// ...
+"require": {
+    "php": "^8.1",
+    "ext-gd": "*",
+    "userfrosting/framework": "~5.1.0",
+    "userfrosting/sprinkle-core": "~5.1.0",
+    "userfrosting/sprinkle-account": "~5.1.0",
+    "userfrosting/sprinkle-admin": "~5.1.0",
+    "userfrosting/theme-adminlte": "~5.1.0"
+},
+// ...
+```
+
+To:
+```json
+// ...
+"require": {
+    "php": "^8.1",
+    "ext-gd": "*",
+    "userfrosting/framework": "~5.2.0",
+    "userfrosting/sprinkle-core": "~5.2.0",
+    "userfrosting/sprinkle-account": "~5.2.0",
+    "userfrosting/sprinkle-admin": "~5.2.0",
+    "userfrosting/theme-adminlte": "~5.2.0"
+},
+// ...
+```
+
+Now, simply use composer to get up to date with everything :
+
+```bash
+$ composer update
+```
+
+### NPM
+
+Open `package.json` and update from : 
+
+```json
+// ...
+"dependencies": {
+    "@userfrosting/sprinkle-admin": "~5.1.0",
+    "@userfrosting/theme-adminlte": "~5.1.0"
+},
+// ...
+```
+
+To:
+```json
+// ...
+"dependencies": {
+    "@userfrosting/sprinkle-admin": "~5.2.0",
+    "@userfrosting/theme-adminlte": "~5.2.0"
+},
+// ...
+```
+
+Now, simply use npm and [Bakery](/cli) to get up to date with everything else:
+
+```bash
+$ npm update
+$ php bakery bake
+```
+
+## Migrating your Sprinkles
+
+<!-- TODO -->

pages/22.upgrading/03.51-to-52/03.roadmap/docs.md

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+---
+title: Coming up next
+metadata:
+    description: 
+taxonomy:
+    category: docs
+---
+
+### UserFrosting 5.3
+
+The main focus of UserFrosting 5.3 will be :
+
+- <!-- TODO -->
+- Etc.
+
+No release date has been determined right now. If you would like to give a hand, don't hesitate to contribute by sending a Pull Request on GitHub, or getting in touch on the [Chat](https://chat.userfrosting.com).
+
+<!-- ### UserFrosting 6
+
+Meanwhile, work for [UserFrosting 6](/upgrading/46-to-50/roadmap#userfrosting-6) is moving along! As a reminder, UF6 goal is to completely rewrite the frontend, with a brand new custom theme replacing AdminLTE and based on [UIKit](https://getuikit.com). Handlebar and every frontend javascript code will also be replaced with [Vue.js](https://vuejs.org). 
+
+You can find a proof of concept of this new Vue.js based UI (built with UF5) and the foundation of the new theme, **Pink Cupcake**, at the links below.
+
+- [userfrosting/demo-vue](https://github.com/userfrosting/demo-vue/tree/main)
+- [userfrosting/theme-pinkcupcake](https://github.com/userfrosting/theme-pinkcupcake)  -->

pages/22.upgrading/03.51-to-52/chapter.md

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+---
+title: 5.1.x to 5.2.x
+metadata:
+    description: Upgrade guide for UserFrosting 5.2
+taxonomy:
+    category: docs
+---
+
+# Upgrading to UserFrosting 5.2
+
+Welcome, awesome developers, to the world of **UserFrosting 5.2**! 
+
+UserFrosting 5.2 focuses on... <!-- TODO -->
+
+[notice]Before going further, make sure you're running the latest version of UserFrosting 5.1 and reviewed it's [upgrade guide](/upgrading/50-to-51).[/notice]