While I was reviewing this PR that introduces a change in how users navigate through blocks and the block toolbar when using a keyboard, I kept thinking that this was a welcoming change but one that will most likely cause confusion due to the nature of the change.

I've been thinking of ways a change like this could be widely communicated, particularly to end-users, who I think will be the most affected.

Looking at other apps and services for inspiration, I came across a common pattern: the "What's new" section.

Here are a few examples for reference:

Slack

On the top-right corner of the UI, Slack has a "help" menu that is highlighted with a dot whenver new features are recent:

Clicking on "What's new" opens a modal with all the recent updates introduced:

Trello

Trello makes Taco, their mascot, appear on the top toolbar with a text that reads "New stuff":

Clicking on Taco opens a popover:

The information here is more summarized, but also offers a link to read more.

Glitch

Glitch also has a cute dog appear whenever there's news. It appears on the bottom right corner of the UI:

Clicking on the dog will open a modal, with lots of info:

I think it'll be useful if we implemented something similar, particularly because it's very unlikely that our end-users follow the make.wordpress.org blogs.

Here's a quick prototype:

We can fine tune exactly how much info we'd want to show here. We can go as extensive as Glitch, more summarized like Trello, or somewhere in the middle, like Slack. Considering who the target audience is, I think we should only highlight those changes that have an immediate effect on their experience.

What do y'all think?