This item was not updated in last three versions of the Radar. Should it have appeared in one of the more recent editions, there is a good chance it remains pertinent. However, if the item dates back further, its relevance may have diminished and our current evaluation could vary. Regrettably, our capacity to consistently revisit items from past Radar editions is limited.
Adopt
Unleash is a feature (toggle / flag) management service written in Node.js. You can enable/disable features independent of deployment schedules. For larger projects with many feature flags you can benefit from usage statistics and metrics which are collected for each flag.
A lot of activation strategies are provided by Unleash out of the box, like Boolean On/Off, Gradual Rollout, IPs, and so on, while allowing you to add custom strategies.
To evaluate the feature flag you can choose one of the official SDKs or use the REST-API directly.