Gutenberg 4.0 RC 1 Released – Call for testing

Gutenberg is currently the main focus for the testing group and it is the new editing experience in WordPress. The goal of Gutenberg is to simplify the creation of rich pages and posts in WordPress by replacing old custom HTML, CSS and shortcodes with native Blocks. To help test, please download gutenberg.zip from the releases page, or use the button above, and try testing any of the following things:
Change the overlay color on the Cover Image block. (10291)
Try changing the style variation and colors for pullquotes. (9763)
Edit a post already being edited by another user and check that post looking works as expected. (4217)
Align different blocks. Try on mobile. (10085)
Turn on the option to skip the publish confirmation and check that posts publish immediately. (9760)
Exit the code editor using the link at top right. Try from different browser versions. (10061)
Nest some bulleted list items and check that the indented ones are circles. (10358)
Search for terms when adding categories. (10138)
Add a text color to a paragraph with links and see that the links change color too. (10171)
Insert images using the classic block. (10306)
Embed a few videos and check that they look correct
Source: https://managewp.org/articles/17986/gutenberg-4-0-rc-1-released-call-for-testing

source https://williechiu40.wordpress.com/2018/10/17/gutenberg-4-0-rc-1-released-call-for-testing/