MacRumors.com:

Apple Seeds First Public Betas of iOS and iPadOS 13.4 With New Mail Toolbar, iCloud Folder Sharing and More

Uh-uh, uh-uh! , nope! not gonna do it, not gonna — I shall not!!

Gabys shall not beta test!

@Gabz What if you miss out on something cool 🙈

@Gabz How's the install going? 🤣

@hjertnes RIGHT!!???

@Gabz ha! I knew it!

@Gabz don’t do it... I wish Apple would just fix things to be less buggy & sluggish, to be fair there are bad UI stuff (aka mail) and features missing from WWDC but I would rather have a stable phone, watch and mac