"last known good" meaning in All languages combined

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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
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          "name": "Computing",
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            "Fundamental"
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      "glosses": [
        "The most recent configuration that works properly, used to roll back changes that might later prove problematic."
      ],
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          "computing",
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          "configuration",
          "configuration"
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          "roll back",
          "roll back"
        ],
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          "problematic",
          "problematic"
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      "raw_glosses": [
        "(computing) The most recent configuration that works properly, used to roll back changes that might later prove problematic."
      ],
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            "initialism"
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        "physical-sciences",
        "sciences"
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        "(computing) The most recent configuration that works properly, used to roll back changes that might later prove problematic."
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