Every version of 1Password available on https://1password.com/downloads/ https://1password.com/downloads/ works with standalone vaults. The only exception is 1P

Every version of 1Password available on https://1password.com/downloads/ https://1password.com/downloads/ works with standalone vaults. The only exception is 1Password 6 for Windows, but there is a link to download 1Password 4 for Windows. The link for that even says "Get 1Password 4 (standalone version)".