diff --git a/installer/ElfisaPharmacy.iss b/installer/ElfisaPharmacy.iss
index 1f9f77b..768fc1b 100644
--- a/installer/ElfisaPharmacy.iss
+++ b/installer/ElfisaPharmacy.iss
@@ -3,7 +3,7 @@
 
 #define MyAppName "Электронная Фармация"
 #define MyAppBrand "ЭльФиСА"
-#define MyAppVersion "2.0.6"
+#define MyAppVersion "2.0.7"
 #define MyAppPublisher "PharmData"
 #define MyAppURL "https://cdn.24pharmdata.ru"
 #define MyAppSupportURL "https://24pharmdata.ru"
diff --git a/src/Elfisa.Avalonia/Elfisa.Avalonia.csproj b/src/Elfisa.Avalonia/Elfisa.Avalonia.csproj
index fdfd879..fa58a39 100644
--- a/src/Elfisa.Avalonia/Elfisa.Avalonia.csproj
+++ b/src/Elfisa.Avalonia/Elfisa.Avalonia.csproj
@@ -5,9 +5,9 @@
     <Nullable>enable</Nullable>
     <ApplicationManifest>app.manifest</ApplicationManifest>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
-    <Version>2.0.6</Version>
-    <AssemblyVersion>2.0.6.0</AssemblyVersion>
-    <FileVersion>2.0.6.0</FileVersion>
+    <Version>2.0.7</Version>
+    <AssemblyVersion>2.0.7.0</AssemblyVersion>
+    <FileVersion>2.0.7.0</FileVersion>
     <Product>ЭльФиСА — Электронная Фармация</Product>
     <Company>PharmData</Company>
     <!-- Кросс-платформенная публикация задаётся флагами CLI (RID + self-contained). -->
diff --git a/src/Elfisa.Avalonia/ViewModels/PriceListViewModel.cs b/src/Elfisa.Avalonia/ViewModels/PriceListViewModel.cs
index 5b1f018..8f20957 100644
--- a/src/Elfisa.Avalonia/ViewModels/PriceListViewModel.cs
+++ b/src/Elfisa.Avalonia/ViewModels/PriceListViewModel.cs
@@ -128,7 +128,9 @@ public partial class PriceListViewModel : ViewModelBase
         try
         {
             Busy = true;
-            var resp = await _api.GetPriceSummaryAsync(Search, limit: 300, priceListId: SelectedPriceList?.PriceListId);
+            // Без лимита показа: тянем весь прайс/все совпадения одним запросом (сервер
+            // при одном большом запросе прогоняет дедупликацию один раз, без COUNT).
+            var resp = await _api.GetPriceSummaryAsync(Search, limit: 500000, priceListId: SelectedPriceList?.PriceListId);
             RebuildIndex(resp.Summary ?? new());
             Total = resp.TotalDrugs;
         }
diff --git a/src/Elfisa.Avalonia/Views/SettingsWindow.axaml b/src/Elfisa.Avalonia/Views/SettingsWindow.axaml
index 7219608..d350377 100644
--- a/src/Elfisa.Avalonia/Views/SettingsWindow.axaml
+++ b/src/Elfisa.Avalonia/Views/SettingsWindow.axaml
@@ -3,7 +3,7 @@
         xmlns:vm="using:Elfisa.Avalonia.ViewModels"
         x:Class="Elfisa.Avalonia.Views.SettingsWindow"
         x:DataType="vm:SettingsViewModel"
-        Width="460" Height="360" CanResize="False"
+        Width="460" Height="440" CanResize="False"
         WindowStartupLocation="CenterOwner"
         Background="{DynamicResource Bg}"
         Title="Настройки">
@@ -26,6 +26,15 @@
             <ComboBox ItemsSource="{Binding Locations}" SelectedItem="{Binding SelectedLocation}" HorizontalAlignment="Stretch"/>
         </StackPanel>
 
+        <StackPanel Spacing="6">
+            <TextBlock Text="Обновления" Classes="label"/>
+            <StackPanel Orientation="Horizontal" Spacing="10">
+                <Button Content="Проверить обновления" Click="OnCheckUpdate"/>
+                <TextBlock x:Name="UpdateStatus" VerticalAlignment="Center" TextWrapping="Wrap"
+                           Foreground="{DynamicResource Muted}"/>
+            </StackPanel>
+        </StackPanel>
+
         <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Spacing="10" Margin="0,8,0,0">
             <Button Content="Отмена" Click="OnCancel" Padding="18,9"/>
             <Button Classes="primary" Content="Сохранить" Click="OnSave"/>
diff --git a/src/Elfisa.Avalonia/Views/SettingsWindow.axaml.cs b/src/Elfisa.Avalonia/Views/SettingsWindow.axaml.cs
index 4bbf4ba..f867800 100644
--- a/src/Elfisa.Avalonia/Views/SettingsWindow.axaml.cs
+++ b/src/Elfisa.Avalonia/Views/SettingsWindow.axaml.cs
@@ -1,3 +1,5 @@
+using System;
+using System.Reflection;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
@@ -12,6 +14,28 @@ public partial class SettingsWindow : Window
 {
     public SettingsWindow() => AvaloniaXamlLoader.Load(this);
 
+    private async void OnCheckUpdate(object? sender, RoutedEventArgs e)
+    {
+        var status = this.FindControl<TextBlock>("UpdateStatus");
+        var current = Assembly.GetEntryAssembly()?.GetName().Version ?? new Version(0, 0, 0, 0);
+        if (status is not null) status.Text = "Проверяем…";
+        var info = await UpdateService.CheckAsync(current);
+        if (info is null)
+        {
+            if (status is not null) status.Text = "Не удалось проверить (нет сети).";
+            return;
+        }
+        if (!info.Available)
+        {
+            if (status is not null) status.Text = $"У вас последняя версия ({info.CurrentVersion}).";
+            return;
+        }
+        if (status is not null) status.Text = $"Доступна {info.LatestVersion} — открываю…";
+        var win = new UpdateWindow();
+        win.DataContext = new UpdateViewModel(info, win.Close);
+        await win.ShowDialog(this);
+    }
+
     private void OnSave(object? sender, RoutedEventArgs e)
     {
         if (DataContext is SettingsViewModel vm)
diff --git a/src/Elfisa.Core/UpdateService.cs b/src/Elfisa.Core/UpdateService.cs
index 1d963de..2401054 100644
--- a/src/Elfisa.Core/UpdateService.cs
+++ b/src/Elfisa.Core/UpdateService.cs
@@ -20,6 +20,9 @@ public sealed class UpdateInfo
 /// </summary>
 public static class UpdateService
 {
+    // Первичный источник — публичный CDN (тот же хост, откуда качается установщик;
+    // надёжнее приватных API и отдельных поддоменов). Fallback — Gitea Releases.
+    private const string LatestJsonUrl = "https://cdn.24pharmdata.ru/latest.json";
     private const string ReleasesLatest =
         "https://git.24pharmdata.ru/api/v1/repos/pharmdata/elfisa-pharmacy/releases/latest";
 
@@ -28,6 +31,41 @@ public static class UpdateService
 
     /// <summary>Проверяет наличие новой версии. Возвращает null при офлайне/ошибке (не мешаем работе).</summary>
     public static async Task<UpdateInfo?> CheckAsync(Version current)
+    {
+        var info = await TryCdnAsync(current).ConfigureAwait(false)
+                   ?? await TryGiteaAsync(current).ConfigureAwait(false);
+        Log(info is null
+            ? $"current={current}: проверка не удалась (нет ответа CDN и Gitea)"
+            : $"current={current} latest={info.LatestVersion} available={info.Available}");
+        return info;
+    }
+
+    // CDN latest.json: {"version":"2.0.7","setup":"https://cdn.24pharmdata.ru/ElfisaPharmacy-Setup.exe"}
+    private static async Task<UpdateInfo?> TryCdnAsync(Version current)
+    {
+        try
+        {
+            using var http = new HttpClient { Timeout = TimeSpan.FromSeconds(8) };
+            var json = await http.GetStringAsync(LatestJsonUrl).ConfigureAwait(false);
+            using var doc = JsonDocument.Parse(json);
+            var root = doc.RootElement;
+            var ver = root.TryGetProperty("version", out var v) ? v.GetString() : null;
+            var latest = ParseVersion(ver);
+            if (latest is null) return null;
+            var setup = root.TryGetProperty("setup", out var s) ? s.GetString() : null;
+            return new UpdateInfo
+            {
+                Available = latest > current,
+                CurrentVersion = current.ToString(),
+                LatestVersion = latest.ToString(),
+                ReleaseUrl = "",
+                SetupUrl = string.IsNullOrWhiteSpace(setup) ? SetupUrl : setup!,
+            };
+        }
+        catch (Exception ex) { Log("CDN latest.json недоступен: " + ex.Message); return null; }
+    }
+
+    private static async Task<UpdateInfo?> TryGiteaAsync(Version current)
     {
         try
         {
@@ -49,10 +87,18 @@ public static class UpdateService
                 SetupUrl = SetupUrl,
             };
         }
-        catch
+        catch (Exception ex) { Log("Gitea releases/latest недоступен: " + ex.Message); return null; }
+    }
+
+    /// <summary>Лог проверки в %TEMP%\elfisa-update.log — для диагностики на машине клиента.</summary>
+    private static void Log(string msg)
+    {
+        try
         {
-            return null;
+            var path = Path.Combine(Path.GetTempPath(), "elfisa-update.log");
+            File.AppendAllText(path, $"{DateTime.Now:yyyy-MM-dd HH:mm:ss}  {msg}{Environment.NewLine}");
         }
+        catch { /* лог не критичен */ }
     }
 
     /// <summary>Скачивает установщик с CDN во временный файл. Возвращает путь.</summary>