First version for 1.15 beta release notes

Author: VesaJuvonen

docs/spfx/release-1.15.md

@@ -0,0 +1,77 @@
+---
+title: SharePoint Framework v1.15 preview release notes
+description: Release notes for the SharePoint Framework v1.15 preview release
+ms.date: 3/3/2022
+ms.prod: sharepoint
+ms.localizationpriority: high
+---
+# SharePoint Framework v1.15 preview release notes
+
+There will be multiple public preview release using the @next tag in the NPMJS.org registry before final release candidates and a final public release.
+
+[!INCLUDE [spfx-release-beta](../../includes/snippets/spfx-release-beta.md)]
+
+**beta.1:** March 3, 2022
+
+[!INCLUDE [spfx-release-notes-common](../../includes/snippets/spfx-release-notes-common.md)]
+
+## Install the latest preview release
+
+Install the latest preview release of the SharePoint Framework (SPFx) by including the **@next** tag:
+
+```console
+npm install @microsoft/generator-sharepoint@next --global
+```
+
+## Upgrading projects from v1.14 to v1.15
+
+1. In the project's **package.json** file, identify all SPFx v1.14 packages. For each SPFx package:
+    1. Uninstall the existing v1.14 package:
+
+        ```console
+        npm uninstall @microsoft/[email protected]
+        ```
+
+    2. Install the new v1.14 preview package:
+
+        ```console
+        npm install @microsoft/generator-sharepoint@next --save --save-exact
+        ```
+
+[!INCLUDE [spfx-release-upgrade-tip](../../includes/snippets/spfx-release-upgrade-tip.md)]
+
+## New features and capabilities
+
+### Microsoft Graph V3 Support
+
+`MSGraphClientFactory` allows a developer to select the version of the Microsoft Graph API to use.
+
+> [!NOTE]
+> Default behavior is to use v1 of the Microsoft Graph API for backward compatibility.
+
+```typescript
+this.context.msGraphClientFactory.getClient('3');
+```
+
+### Updated Command Set Extension Template
+
+The template was updated to use `listViewStateChanged` event instead of deprecated `onListViewUpdated` event.
+
+### Node 16 LTS
+
+- Node engines updated in package.json files to include Node 16 LTS `>=12.13.0 <13.0.0 || >=14.15.0 <15.0.0 || >=16.13.0 <17.0.0`.
+
+## Deprecations
+
+- Deprecated SPComponentLoader#getManifests due to runtime performance overhead.
+
+## Fixed Issues
+
+### February Timeframe
+
+- [#7680](https://github.com/SharePoint/sp-dev-docs/issues/7680) - Theme colors do not load (immediately) on SP listpage or site contents page
+- [#6403](https://github.com/SharePoint/sp-dev-docs/issues/6403) - DynamicData.tryGetValue() should not fail if disposed
+- [#5979](https://github.com/SharePoint/sp-dev-docs/issues/5979) - Problem popup when remove SPFx Teams Tab
+- [#7679](https://github.com/SharePoint/sp-dev-docs/issues/7679) - Field customizer doesn't load consistently when searching
+- [#7689](https://github.com/SharePoint/sp-dev-docs/issues/7689) - [SPFx-Heft-Plugins][SPFx 1.13.1] elementManifests path resolving differently on Windows and Linux when referencing external file path
+- [#7771](https://github.com/SharePoint/sp-dev-docs/issues/7771) - SPFx v1.14.0: Image Helper API, exception in btoa, string contains characters outside of the Latin1 range