Resolves to the first calendar date (UTC) on which the Ladybird project publishes a release explicitly labelled “Alpha” for the browser, available for download, on an official channel:
Ladybird website News/announcements, or blog post linking to the release: https://ladybird.org/ (check “News”).
GitHub Releases for LadybirdBrowser/ladybird: https://github.com/LadybirdBrowser/ladybird/releases.
If a GitHub “Release” is used, its published timestamp in UTC determines the date.
“Tech/developer preview,” nightly builds, tags without “alpha,” or third‑party/unofficial binaries do not count (e.g., personal build sites).