Deleting zotero.sqlite.bak
A simple problem that, hopefully, isn't actually too much of a problem: I've accidentally deleted zotero.sqlite.1.bak and zotero.sqlite.bak. Will my library be fine? If I reopen Zotero, I assume that Zotero will just create a new zotero.sqlite.bak file in the directory and mark *that* as the point at which the last database backup occurred? Please let me know, as I might be able to hunt down a backup of the original zotero.sqlite.1.bak and zotero.sqlite.bak files (the ones now deleted) but don't want to do this if it is unnecessary and/or would cause problems.
Upgrade Storage
If your library works, nothing to do. They would be overwritten soon enough.