Two safety nets, both on by default.
Deleting a page (⇧⌘D) shows an Undo button for a few seconds —
one click and the page is back where it was. Beyond that, nothing is destroyed:
the page moves to File ▸ Recently
Deleted…, where it can be restored with one click for 30 days. After
that it's quietly purged. Delete Forever is there when you mean it (and asks
first). Trashed pages vanish from search, links, exports, and the page list immediately —
they're gone from the wiki, just not gone from the world.
While you edit, MojoPad quietly snapshots the page — at most one snapshot every ten minutes, keeping the ten most recent per page. Edit ▸ Page Versions… lists them; click one to preview its text, click Restore to bring it back. Restoring is itself reversible: the current state is snapshotted first. (Encrypted pages are never versioned — no plaintext left behind.) This is the answer to "I rewrote this paragraph yesterday and it was better before."
MojoPad quietly zips a complete copy of your document every time you open it,
and once an hour while it stays open and keeps changing — long sessions get
checkpoints too. Want one on demand — say, right before a big reorganization?
File ▸ Back Up Now. The eight most recent backups per document are kept.
File ▸ Show Backups in Finder takes you to them. To restore one: unzip it, and
the result is a normal .mojopad document — open it, or pull pages from it
with File ▸ Merge Document….
Backups live in MojoPad's own folder and never overwrite each other across documents. They are in addition to whatever Time Machine or your sync service does — belt, suspenders.