v4.1.0

Changed

• Upgrade deferred-leveldown from ~5.0.0 to ~5.1.0 (#657) (@vweevers)
• Upgrade delayed devDependency from ^1.0.1 to ^2.0.0 (#659) (@vweevers)

Added

• Test seek() integration (#661) (@vweevers) *
• Support options passed to open() (#660, #662) (@achingbrain, @vweevers)

* Historical Note Many thanks to @MeirionHughes for adding seek() support to memdown, encoding-down, deferred-leveldown and subleveldown. At the time of writing, all but subleveldown have been released. Go forth and seek!