[
  {
    "version": "0.1.0-draft",
    "date": "2026-09-28",
    "reason": "法人・役割・設備・契約・数値・出典の基本構造を公開。",
    "added_concepts": [
      "Organization",
      "BusinessRole",
      "RoleAssignment",
      "Scope",
      "Area",
      "Period",
      "Asset",
      "DemandPoint",
      "Market",
      "Product",
      "ValueKind",
      "Contract",
      "Tariff",
      "Policy",
      "Metric",
      "Observation",
      "Unit",
      "Dataset",
      "Evidence",
      "FinancialBoundary",
      "Identifier",
      "Label",
      "NumericValue",
      "Timestamp",
      "Text"
    ],
    "added_relationships": [
      "Organization.id",
      "Organization.label",
      "BusinessRole.id",
      "BusinessRole.label",
      "RoleAssignment.id",
      "RoleAssignment.label",
      "Scope.id",
      "Scope.label",
      "Area.id",
      "Area.label",
      "Period.id",
      "Period.label",
      "Asset.id",
      "Asset.label",
      "DemandPoint.id",
      "DemandPoint.label",
      "Market.id",
      "Market.label",
      "Product.id",
      "Product.label",
      "ValueKind.id",
      "ValueKind.label",
      "Contract.id",
      "Contract.label",
      "Tariff.id",
      "Tariff.label",
      "Policy.id",
      "Policy.label",
      "Metric.id",
      "Metric.label",
      "Observation.id",
      "Observation.label",
      "Unit.id",
      "Unit.label",
      "Dataset.id",
      "Dataset.label",
      "Evidence.id",
      "Evidence.label",
      "FinancialBoundary.id",
      "FinancialBoundary.label",
      "RoleAssignment.organization",
      "RoleAssignment.role",
      "RoleAssignment.period",
      "RoleAssignment.scope",
      "RoleAssignment.evidence",
      "Scope.area",
      "Period.start",
      "Period.end",
      "Asset.operator",
      "Asset.owner",
      "Asset.area",
      "DemandPoint.area",
      "Market.operator",
      "Market.product",
      "Product.value_kind",
      "Product.period",
      "Product.area",
      "Contract.party",
      "Contract.period",
      "Contract.tariff",
      "Tariff.policy",
      "Policy.period",
      "Policy.stage",
      "Observation.metric",
      "Observation.value",
      "Observation.unit",
      "Observation.period",
      "Observation.scope",
      "Observation.evidence",
      "Observation.value_status",
      "Metric.unit",
      "Metric.formula",
      "Dataset.observation",
      "Evidence.url",
      "Evidence.checked_at",
      "Observation.standard_unit"
    ],
    "changed": [],
    "deprecated": []
  },
  {
    "version": "0.2.0-draft",
    "date": "2026-09-28",
    "reason": "法人と役割を分離し、期間と対象範囲による役割の割当を定義。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "Organization",
      "BusinessRole",
      "RoleAssignment",
      "Scope",
      "Period",
      "RoleAssignment.organization",
      "RoleAssignment.role",
      "RoleAssignment.period",
      "RoleAssignment.scope"
    ],
    "deprecated": []
  },
  {
    "version": "0.3.0-draft",
    "date": "2026-09-28",
    "reason": "設備への関与、4種類の価値、数値の改訂、根拠に基づく推論を拡充。",
    "added_concepts": [
      "CorporateGroup",
      "GroupMembership",
      "OrganizationRelation",
      "PowerPlant",
      "GeneratingUnit",
      "AssetOwnership",
      "AssetOperation",
      "AssetResponsibility",
      "VoltageClass",
      "AssetEvent",
      "RoleTransition",
      "Qualification",
      "QualificationHolding",
      "KnowledgeAssertion"
    ],
    "added_relationships": [
      "CorporateGroup.id",
      "CorporateGroup.label",
      "GroupMembership.id",
      "GroupMembership.label",
      "OrganizationRelation.id",
      "OrganizationRelation.label",
      "PowerPlant.id",
      "PowerPlant.label",
      "GeneratingUnit.id",
      "GeneratingUnit.label",
      "AssetOwnership.id",
      "AssetOwnership.label",
      "AssetOperation.id",
      "AssetOperation.label",
      "AssetResponsibility.id",
      "AssetResponsibility.label",
      "VoltageClass.id",
      "VoltageClass.label",
      "AssetEvent.id",
      "AssetEvent.label",
      "RoleTransition.id",
      "RoleTransition.label",
      "Qualification.id",
      "Qualification.label",
      "QualificationHolding.id",
      "QualificationHolding.label",
      "KnowledgeAssertion.id",
      "KnowledgeAssertion.label",
      "AssetOwnership.asset",
      "AssetOwnership.organization",
      "AssetOwnership.period",
      "AssetOwnership.evidence",
      "AssetOperation.asset",
      "AssetOperation.organization",
      "AssetOperation.period",
      "AssetOperation.evidence",
      "AssetResponsibility.asset",
      "AssetResponsibility.organization",
      "AssetResponsibility.period",
      "AssetResponsibility.evidence",
      "GroupMembership.group",
      "GroupMembership.organization",
      "GroupMembership.period",
      "GroupMembership.evidence",
      "OrganizationRelation.source_organization",
      "OrganizationRelation.target_organization",
      "OrganizationRelation.kind",
      "OrganizationRelation.period",
      "OrganizationRelation.evidence",
      "FinancialBoundary.organization",
      "FinancialBoundary.period",
      "GeneratingUnit.power_plant",
      "Scope.power_plant",
      "Scope.voltage_class",
      "BusinessRole.code",
      "ValueKind.code",
      "VoltageClass.code",
      "AssetEvent.kind",
      "AssetEvent.stage",
      "AssetEvent.actual_date",
      "AssetEvent.planned_date",
      "AssetEvent.evidence",
      "RoleTransition.kind",
      "RoleTransition.stage",
      "RoleTransition.actual_date",
      "RoleTransition.planned_date",
      "RoleTransition.evidence",
      "AssetEvent.asset",
      "RoleTransition.from_assignment",
      "RoleTransition.to_assignment",
      "Product.terms",
      "Contract.value_kind",
      "Contract.product",
      "Contract.terms",
      "Observation.value_nature",
      "Observation.publication_status",
      "Observation.revision_id",
      "Observation.revises",
      "Qualification.kind",
      "Qualification.conditions",
      "Qualification.policy",
      "QualificationHolding.organization",
      "QualificationHolding.qualification",
      "QualificationHolding.period",
      "QualificationHolding.scope",
      "QualificationHolding.assertion",
      "RoleAssignment.assertion",
      "KnowledgeAssertion.statement_text",
      "KnowledgeAssertion.epistemic_status",
      "KnowledgeAssertion.evidence",
      "KnowledgeAssertion.premise",
      "KnowledgeAssertion.rule_id",
      "KnowledgeAssertion.assumption",
      "KnowledgeAssertion.scope",
      "KnowledgeAssertion.period"
    ],
    "changed": [
      "Scope",
      "Area",
      "Asset",
      "Product",
      "ValueKind",
      "Contract",
      "Metric",
      "Observation",
      "Unit",
      "Evidence",
      "FinancialBoundary",
      "Scope.area",
      "Asset.operator",
      "Asset.owner",
      "Product.value_kind",
      "Product.period",
      "Product.area",
      "Contract.party",
      "Contract.period",
      "Observation.metric",
      "Observation.value",
      "Observation.unit",
      "Observation.period",
      "Observation.scope",
      "Observation.evidence",
      "Observation.value_status",
      "Metric.unit",
      "Metric.formula"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.0-draft",
    "date": "2026-09-28",
    "reason": "行政区分との対応、設備の識別、終了日不明、資料採用、取引条件を拡充。既存知識を統合し、CC BY 4.0で提供。",
    "added_concepts": [
      "AssetIdentityHistory",
      "AreaMapping",
      "ObservationSelection",
      "TradingTerms",
      "BusinessFunction",
      "PolicyStage",
      "ImpactType",
      "RelationType",
      "PolicyForum",
      "PolicySeries",
      "PolicyIssue"
    ],
    "added_relationships": [
      "AssetIdentityHistory.id",
      "AssetIdentityHistory.label",
      "AssetIdentityHistory.asset",
      "AssetIdentityHistory.name",
      "AssetIdentityHistory.unit_number",
      "AssetIdentityHistory.period",
      "AssetIdentityHistory.evidence",
      "GeneratingUnit.replaces",
      "Observation.asset",
      "AreaMapping.id",
      "AreaMapping.label",
      "Area.scheme",
      "Area.level",
      "Area.parent",
      "AreaMapping.business_area",
      "AreaMapping.administrative_area",
      "AreaMapping.coverage",
      "AreaMapping.boundary_note",
      "AreaMapping.period",
      "AreaMapping.evidence",
      "Period.end_status",
      "Period.status_evidence",
      "Period.status_as_of",
      "ObservationSelection.id",
      "ObservationSelection.label",
      "ObservationSelection.candidates",
      "ObservationSelection.selected",
      "ObservationSelection.reason",
      "ObservationSelection.rule_id",
      "Evidence.publisher",
      "Evidence.published_at",
      "Evidence.date_precision",
      "TradingTerms.id",
      "TradingTerms.label",
      "TradingTerms.delivery_period",
      "TradingTerms.area",
      "TradingTerms.quantity",
      "TradingTerms.unit",
      "TradingTerms.price",
      "TradingTerms.price_unit",
      "TradingTerms.obligation",
      "TradingTerms.nonperformance",
      "Product.trading_terms",
      "Contract.trading_terms",
      "BusinessFunction.id",
      "BusinessFunction.label",
      "PolicyStage.id",
      "PolicyStage.label",
      "ImpactType.id",
      "ImpactType.label",
      "RelationType.id",
      "RelationType.label",
      "PolicyForum.id",
      "PolicyForum.label",
      "PolicySeries.id",
      "PolicySeries.label",
      "PolicyIssue.id",
      "PolicyIssue.label",
      "PolicyForum.host",
      "PolicySeries.forum",
      "Policy.issue",
      "PolicyIssue.business_function",
      "PolicyIssue.impact"
    ],
    "changed": [
      "BusinessRole",
      "PowerPlant",
      "Period",
      "Evidence",
      "R002",
      "R004",
      "R005"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.1-draft",
    "date": "2026-09-29",
    "reason": "財務分析の12用語を共通登録簿と用語集に追加。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/financial-concepts.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.2-draft",
    "date": "2026-09-30",
    "reason": "電力需給・設備・供給条件の9用語を追加。検討中の需給シグナルと既存指標を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.3-draft",
    "date": "2026-10-03",
    "reason": "系統接続、発電設備・環境評価、需給調整市場、環境価値、業務システムの27用語を追補。出力抑制の別名を追加。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.4-draft",
    "date": "2026-10-07",
    "reason": "研究評価、予測、需給サービス、設備・料金と新着トピックの25用語を追補。電力業務システムの根拠を追加。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.5-draft",
    "date": "2026-10-08",
    "reason": "ワークロードシフト、計算資源と配電電圧制御に関する7用語を追補。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.6-draft",
    "date": "2026-10-12",
    "reason": "熱利用・洋上風力・資金調達・投資評価と統計・原子炉運転に関する19用語を追補。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.7-draft",
    "date": "2026-10-15",
    "reason": "原子力発電所の保安規定と運転上の制限に関する2用語を追補。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.8-draft",
    "date": "2026-10-16",
    "reason": "天然水素、浮体式太陽光、離島等供給、ピークカットの4用語を追補。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.9-draft",
    "date": "2026-10-20",
    "reason": "冷温停止、時価総額、EPS、余剰電力、専用線オンライン、簡易指令システムの6用語を追補し、PERの説明を整理。電力システムの公式発表4件と出典を追加。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "registry/concepts/financial-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.10-draft",
    "date": "2026-10-25",
    "reason": "LFP電池、HVO、発動指令電源、実効性テスト、充当措置、追加オークション、連系線マージンの7用語を追補。容量市場の事務局案と現行の定義を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.11-draft",
    "date": "2026-10-26",
    "reason": "基地局のDR協調制御、電力供給網の事前シミュレーション、発電所データによる提案先分析の公式発表3件を追補。実証・初期検証と商用導入を区別し、出典と対象範囲を記録。 ワークロードシフトの定義に通信処理の拠点間移動を含め、基地局の実証例を反映。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "sources.json",
      "registry/concepts/power-system-concepts.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.12-draft",
    "date": "2026-10-28",
    "reason": "自営線、営農型太陽光発電、ペロブスカイト太陽電池、エリア配賦、外挿の5用語を追補。供給・量産の予定、営農の継続、長期推計の前提と限界を明記。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.13-draft",
    "date": "2026-10-31",
    "reason": "交流・直流、DCリンク方式、太陽光の過積載、接続検討、容量拠出金の年次精算を追補。需要抑制と太陽光の出力上限によるピークカットを区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.14-draft",
    "date": "2026-11-01",
    "reason": "調整力の限界的なkWh価格を追補。上げ・下げの価格参照、算定対象と最終インバランス料金の違いを整理。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.15-draft",
    "date": "2026-11-06",
    "reason": "自然体余力を追補。火力調査の対象と追加起動余力、募集量控除の検討を区別。電力向けの顧客表示・蓄電池運用・AI分析の公式発表4件を追加し、運転予定と稼働実績を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.16-draft",
    "date": "2026-11-07",
    "reason": "研究記事の理解を助けるRTS-GMLC、プライスメイカー、確率計画の3語を追補。合成系統、私的費用と系統費用、確率の仮定と信頼度条件を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.17-draft",
    "date": "2026-11-08",
    "reason": "蓄電池の記事を補助する余力活用契約・ストレージ式運用の2語を追補。kWh精算とΔkW精算、kWとkWh、対象設備の条件、対応方針と稼働実績を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.18-draft",
    "date": "2026-11-09",
    "reason": "AMIの構成とMDMSとの役割の違いを追補。中部電力PGのMDMS更新事例と国内の製品採用範囲を反映し、個別基盤の収集間隔と全国の提供仕様を区別。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.19-draft",
    "date": "2026-11-11",
    "reason": "接続検討の注意点を更新。東京電力PGの特別高圧での新様式の適用開始、早期回答の条件と旧様式の経過措置を反映。",
    "added_concepts": [],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  },
  {
    "version": "0.4.20-draft",
    "date": "2026-11-12",
    "reason": "PWR、HVDC、熱化学水素製造の定義・適用範囲・一次資料を追加。",
    "added_concepts": [
      "power-concept:pwr",
      "power-concept:hvdc",
      "power-concept:thermochemical-hydrogen"
    ],
    "added_relationships": [],
    "changed": [
      "registry/concepts/power-system-concepts.json",
      "sources.json"
    ],
    "deprecated": []
  }
]
