v2.6.0

API compatible with node:sqlite from Node.js v26.9.0, plus the changes below that landed on v26.x-staging but are not yet in a Node.js release. Binding undefined now succeeds where it previously threw, so this is a minor release. SQLite is unchanged at 3.53.4.

Changed

• undefined binds as SQL NULL: passing undefined for a parameter binds NULL instead of throwing ERR_INVALID_ARG_TYPE, so an explicit undefined and an omitted named parameter now agree. undefined is not an object, so it is still bound as an anonymous parameter rather than being treated as the named-parameter bag. This also removes a better-sqlite3 migration gotcha that surfaced with query builders like Knex, which emit undefined for columns missing from a multi-row insert. Ports Node.js PR #65709.

Fixed

• Changeset detached by a user-defined SQL function: applyChangeset() copies every non-empty changeset before applying it, not just when a filter or onConflict callback is supplied. SQLite reaches JavaScript through a user-defined SQL function in a CHECK constraint or trigger too, so a changeset could previously be detached or zeroed while SQLite was still reading it. Ports Node.js PR #65870.

Full Changelog: v2.5.0...v2.6.0