(blog): add announcement for inappbrowser 5.0.0 (#1164)

diff --git a/www/_posts/2021-02-16-inappbrowser-release-5.0.0.md b/www/_posts/2021-02-16-inappbrowser-release-5.0.0.md
new file mode 100644
index 0000000..3797df3
--- /dev/null
+++ b/www/_posts/2021-02-16-inappbrowser-release-5.0.0.md
@@ -0,0 +1,36 @@
+---
+layout: post
+author:
+    name: Niklas Merz
+    url: https://twitter.com/niklasmaerz
+title:  "Cordova Plugin InAppBrowser 5.0.0 Released!"
+categories: announcements
+tags: news releases plugins
+---
+
+We are happy to announce that we have just released an update to `cordova-plugin-inappbrowser`! 
+
+* [cordova-plugin-inappbrowser@5.0.0](https://www.npmjs.com/package/cordova-plugin-inappbrowser)
+
+## Release Highlights
+
+This is a new major version with breaking changes which requires at least `cordova-android@9.0.0` and `cordova-ios@6.0.0`. Make sure to check and update your platforms.
+
+The most notable improvements in this major release are:
+
+* The InAppBrowser and main webview now share web resources again (like cookies, sessions etc.).
+* You can now set `InAppBrowserStatusBarStyle` to 'darkcontent'.
+* The Android part got some code cleanup.
+
+Please report any issues you find at [issues.cordova.io](http://issues.cordova.io/)!
+
+<!--more-->
+# Changes include:
+
+* [GH-828](https://github.com/apache/cordova-plugin-inappbrowser/pull/828) feat(ios): add `InAppBrowserStatusBarStyle` 'darkcontent' configuration option
+* [GH-823](https://github.com/apache/cordova-plugin-inappbrowser/pull/823) chore: bump engines requirements
+* [GH-824](https://github.com/apache/cordova-plugin-inappbrowser/pull/824) breaking: cleanup code for old **Android** versions
+* [GH-825](https://github.com/apache/cordova-plugin-inappbrowser/pull/825) (ios): rename CDVWKProcessPoolFactory
+* [GH-826](https://github.com/apache/cordova-plugin-inappbrowser/pull/826) ci: add node-14.x to workflow
+* [GH-821](https://github.com/apache/cordova-plugin-inappbrowser/pull/821) breaking(android): replace magic numbers with **Android**.os.Build constants
+* [GH-717](https://github.com/apache/cordova-plugin-inappbrowser/pull/717) ci(ios): remove wkwebview plugin