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  1. Core Server
  2. SERVER-51110

Associate feature flags with release versions

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    • Fully Compatible
    • Security 2020-10-19

      Associate each feature flag with the release version for the feature. Enforce that features with default:false have no release version and features with default:true have a release version. version is required to be a string. For example:

      feature_flags:
    featureFlagToaster:
      description: "Make toast"
      cpp_varname: gToaster
      default: false

    featureFlagBlender:
      description: "Make smoothie"
      cpp_varname: gBlender
      default: true
      version: “4.7”

      Provide the helpers:

      feature_flags::gToaster.isEnabled(ServerGlobalParams::FeatureCompatibility::Version)
feature_flags::gToaster.isEnabledAndIgnoreFCV()
feature_flags::gToaster.getVersion() // throws if the feature is not enabled

      For an enabled feature with default:false, getVersion() will return ServerGlobalParams::FeatureCompatibility::kLatest.

            Assignee:
            mark.benvenuto@mongodb.com Mark Benvenuto
            Reporter:
            tess.avitabile@mongodb.com Tess Avitabile (Inactive)
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              Created:
              Updated:
              Resolved: