This document describes breaking changes and how to upgrade. For a complete list of changes including minor and patch releases, please refer to the changelog.
Removed use of level-spaces internally and dropped support for options.sublevel. You can still use level-spaces by setting options.sub, which should work fine as long as you don't use options.defaultTTL.
Switched to level-spaces.
Version 1.0.0 stores are not backwards compatible with previous versions. If you have unexpired entries in a store managed by < 1.0.0, don't expect them to expire if you upgrade to 1.0.0. This is due to a level-sublevel change. It is also recommended that you only use level-sublevel >= 6.0.0 with level-ttl.