activity panel (started)

docs/release-notes/15-0-0/README.md

@@ -16,10 +16,35 @@ We released OpenProject [OpenProject 15.0.0](https://community.openproject.org/v
 
 ### Boost your communication with real-time loading messages and notifications, emoji reactions, and more
 
+A major change in version 15.0 is the overall look-and-feel of the activity tab of work packages. Users will notice that the activity tab has a new design and that emoji reactions are now enabled. Additionally, new comments will appear directly withouth having to reload. This also applies to the notification center, where new notifications will appear in real-time.
+
+This is a big bundle of new features that will greatly improve communication within OpenProject.
+
+Related features in 15.0:
+- [Primerise the Activity panel](https://community.openproject.org/wp/54733)
+- [Emoji reactions to work package comments](https://community.openproject.org/wp/40437)
+- [Continuously update the notification center. Don't ask for loading updates.](https://community.openproject.org/wp/58253)
+- [Remove "Latest activity" section from work package "Overview" tab](https://community.openproject.org/wp/58017)
+- [On "Newest at the bottom" have the line touch the input box](https://community.openproject.org/wp/57262)
+
+Let's take a closer look at the thre biggest changes concerning this feature bundle:
+
+#### A new timeline design for the activity tab of work packages
+
 Text
 
 Screenshot
 
+#### Emoji reactions to work package comments
+
+Text
+
+![Example screenshot showing emoji reactions in OpenProject's work package comments](openproject-15-0-emoji-reactions.png)
+
+#### Continuous update of the notification center
+
+Text
+
 ### Benefit from easy Single Sign-On authentication settings with SAML and OICD in your administration
 
 With OpenProject 15.0, particularly SaaS customers will benefit from our new user interface for SAML and OIDC. This means they can now set up integrations between OpenProject and SAML or OpenID connect stacks independently and offer users options for Single Sign-On (SSO). Before 15.0, SaaS customers had to contact the OpenProject support if they wanted custom integrations with their SAML or OpenID connect stacks. Now, they cannot only set them up on their own, but also have tools for debugging them if needed.
@@ -53,6 +78,8 @@ With OpenProject 15.0, we are pleased to release another great feature for our p
 
 ![Example screenshot of a project list with dropdown menu on a table header](openproject-15-0-project-lists.png)
 
+![Gif showing how quickly you can now change rows in project lists by clicking on the headers](quick_action_table_headers.gif)
+
 ### Experience simplified design settings with fewer sidebar design variables needed
 
 Before version 15.0, the design configuration in the administration was very complex as there were many variables to be defined. This is why with OpenProject 15.0, the following design colors cannot be customized anymore: