The fourth alpha release of the 1.0.0 line is here. In addition to continued development of calmPress itself, it incorporates changes from the WordPress 5.0.2 release which are not related to gutenberg .
Notable changes since alpha2:
Simplification of the user profile
All fields that do not make much sense where removed, and there is more flexibility in setting a display name.
Username is not being used anymore anywhere in the UI.
In all of the places where a username was expected as an input, or it was displayed, it is replaced by the user’s email address.
In the UI related to user registration, the user does not need to select a username, just specify a unique email address.
For backward compatibility, all places which used to accept either username or user’s email address as input (for example, login form) will still accept a username even if the UI indicates that an email address is expected.
From a developers perspective, there was no change in the user APIs, and the main change is that username is not mandatory anymore when creating a new user as it will be automatically generated from the email address.
Users will still have a username in the DB, it is just not going to be used anywhere in the core UI.
A category is not mandatory for posts
You do not have to have a hierarchical categorization of content if you do not want it.
Password protection of posts was removed
The main reason for removal is that it has bad UX for the author, reader, and developers. We are going to figure out better ways to manage restricted content, but this is so bad there is no point in keeping it around until we will have a better approach to the problem.
The relevant API to detect if a post is password protected is still there, it is just going to return a value indicating a password is not needed.
UI for post formats was removed
The general impression is that themes do not provide any significant distinction between the various formats and that custom post types are probably a better and more robust way to achieve the goals the post formats feature was trying to achieve.
From a developers perspective, there is no change, Attempts to change the post format via the API, are just going to be ignored.
Calendar and archive widgets were removed
It seems like navigating content based on its publishing date is an extreme edge case.
You can learn more about the issues which were closed, and we intend to handle as part of the final 1.0.0 release in the 1.0 release line page.