diff --git a/Tarnax/App.swift b/Tarnax/App.swift
index fb07c4f..e47c2aa 100644
--- a/Tarnax/App.swift
+++ b/Tarnax/App.swift
@@ -287,7 +287,7 @@ struct TransferHistoryChart: View {
 
     private var end: Date { updatedAt ?? Date() }
     private var start: Date { end.addingTimeInterval(-Double(minutes * 60)) }
-    private var samples: [TransferSample] { history.samples.filter { $0.date >= start && $0.date <= end } }
+    private var samples: [TransferSample] { history.samples(from: start, through: end) }
     private var selectedSample: TransferSample? {
         guard let selection else { return nil }
         return samples.min { abs($0.date.timeIntervalSince(selection)) < abs($1.date.timeIntervalSince(selection)) }
diff --git a/Tarnax/Core.swift b/Tarnax/Core.swift
index c947621..bd243fc 100644
--- a/Tarnax/Core.swift
+++ b/Tarnax/Core.swift
@@ -140,9 +140,19 @@ struct TransferHistory {
     private(set) var samples: [TransferSample] = []
     private var segment = 0
 
+    func samples(from start: Date, through end: Date) -> [TransferSample] {
+        let lower = start.timeIntervalSinceReferenceDate
+        let upper = end.timeIntervalSinceReferenceDate
+        // Avoid SDK-new Date >= / <= entry points missing from some iOS betas.
+        return samples.filter {
+            let time = $0.date.timeIntervalSinceReferenceDate
+            return time >= lower && time <= upper
+        }
+    }
+
     mutating func record(download: Int64, upload: Int64, at date: Date = Date()) {
         if let last = samples.last {
-            guard date >= last.date else { return }
+            guard date.timeIntervalSinceReferenceDate >= last.date.timeIntervalSinceReferenceDate else { return }
             if date.timeIntervalSince(last.date) > 10 { segment += 1 }
             // Extra action/manual refreshes must not inflate the history buffer.
             if date.timeIntervalSince(last.date) < 1 { samples.removeLast() }
diff --git a/Tarnax/Info.plist b/Tarnax/Info.plist
index 09f9039..3578bac 100644
--- a/Tarnax/Info.plist
+++ b/Tarnax/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundleShortVersionString</key>
 	<string>1.0</string>
 	<key>CFBundleVersion</key>
-	<string>5</string>
+	<string>6</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>NSFaceIDUsageDescription</key>
diff --git a/Tests/ContractTests.swift b/Tests/ContractTests.swift
index cd0fc51..2a769f5 100644
--- a/Tests/ContractTests.swift
+++ b/Tests/ContractTests.swift
@@ -249,6 +249,10 @@ final class MockProtocol: URLProtocol, @unchecked Sendable {
         check(liveHistory.transferHistory.samples.count == 1, "Failed refresh never fabricates a speed sample")
         liveHistory.disconnect()
         check(liveHistory.transferHistory.samples.isEmpty, "Disconnect removes actual collected history")
+        var windowHistory = TransferHistory()
+        for second in [0, 3, 6] { windowHistory.record(download: 1, upload: 2, at: origin.addingTimeInterval(Double(second))) }
+        check(windowHistory.samples(from: origin.addingTimeInterval(3), through: origin.addingTimeInterval(6)).count == 2, "History window includes exact timestamp boundaries without new Date comparison entry points")
+        check(windowHistory.samples(from: origin.addingTimeInterval(7), through: origin.addingTimeInterval(9)).isEmpty, "History window excludes samples outside its numeric time range")
         another.close(); transport.close(); print("\(checks) contract checks passed.")
     }
 }