20.4.0.0

• [*] Site Creation: Fixed a bug in the design picker where the horizontal position of designs could be reset. [#19020]
• [*] [internal] Block Editor: Add React Native FastImage [WordPress/gutenberg#42009]
• [*] Block Editor: Inserter displays block collections [WordPress/gutenberg#42405]
• [*] Block Editor: Fix incorrect spacing within Image alt text footnote [WordPress/gutenberg#42504]
• [***] Block Editor: Gallery and Image block - Performance improvements [WordPress/gutenberg#42178]
• [**] [WP.com and Jetpack sites with VideoPress] Prevent validation error when viewing VideoPress markup within app [Automattic/jetpack#24548]
• [*] [internal] Add Jetpack branding elements (badges and banners) [#19007, #19040, #19049, #19059, #19062, #19065, #19071, #19073, #19103, #19074, #19085, #19094, #19102, #19104]