2022-2-23凌晨左右虚幻发布了最新的预览版UE5，找不到下载的同学看下这个：

在库页面点击黄色加号就好，记得选带preview 1的

Hi, if you on “LIBRARY” tab hit yellow “+” button near Engine Versions you should see “5.0.0 Preview 1” version to select and install (as option in newly appeared engine version icon).

来自：Unreal Engine 5.0 Preview - General / Announcements - Unreal Engine Forums