List earlier versions of a page you own, newest first.

Every update replaces a page in place, and the content it replaced is kept here: one snapshot per update, taken the moment before the new bytes landed. Use this, then POST /sites/{idOrSlug}/versions/{versionId}/restore, to undo a bad update instead of republishing. Owner-authed. source says how the update that produced each snapshot arrived: dashboard, api, agent, wallet, claim, beautify, or restore. SINGLE-FILE ONLY: on a page with more than one file only index.html is snapshotted and partial is true, so restoring one puts index.html back and leaves the page's other files at their current state; end-to-end encrypted pages are not snapshotted at all, because their index.html is a static bootstrap. Retention is per plan: the last 5 versions on free, 50 on paid, oldest pruned after each update. An empty list is not an error, and means one of three things: the page has never been updated, every version has aged past the cap, or the deployment predates the feature.