diff --git a/DeepDrftPublic.Client/Controls/SharePopover.razor b/DeepDrftPublic.Client/Controls/SharePopover.razor
index 73980bc..b1843af 100644
--- a/DeepDrftPublic.Client/Controls/SharePopover.razor
+++ b/DeepDrftPublic.Client/Controls/SharePopover.razor
@@ -6,7 +6,7 @@
                    Color="Color.Secondary"
                    Disabled="@(!RendererInfo.IsInteractive)"
                    OnClick="@Toggle"
-                   aria-label="Share this track" />
+                   aria-label="@(IsReleaseMode ? "Share this release" : "Share this track")" />
 </MudTooltip>
 
 <MudOverlay Visible="@_open" OnClick="@Close" AutoClose="true" />
@@ -31,31 +31,35 @@
             }
         </MudStack>
 
-        <MudDivider />
-
-        <MudCheckBox @bind-Value="Embed" Color="Color.Primary" Label="Embed player" Dense="true" />
-
-        @if (_embed)
+        @* Embed is a single-track affordance only; a release page is not a single-track embed (§3b.3). *@
+        @if (!IsReleaseMode)
         {
-            <MudStack Row AlignItems="AlignItems.Center" Spacing="1">
-                <MudTextField Value="@EmbedSnippet"
-                              T="string"
-                              ReadOnly="true"
-                              Variant="Variant.Outlined"
-                              Lines="3"
-                              Margin="Margin.Dense"
-                              Class="deepdrft-share-embed-field" />
-                <MudStack AlignItems="AlignItems.Center" Spacing="0">
-                    <MudIconButton Icon="@Icons.Material.Filled.ContentCopy"
-                                   Color="Color.Primary"
-                                   OnClick="@CopyEmbed"
-                                   aria-label="Copy embed snippet" />
-                    @if (_embedCopied)
-                    {
-                        <MudText Typo="Typo.caption" Color="Color.Success">Copied!</MudText>
-                    }
+            <MudDivider />
+
+            <MudCheckBox @bind-Value="Embed" Color="Color.Primary" Label="Embed player" Dense="true" />
+
+            @if (_embed)
+            {
+                <MudStack Row AlignItems="AlignItems.Center" Spacing="1">
+                    <MudTextField Value="@EmbedSnippet"
+                                  T="string"
+                                  ReadOnly="true"
+                                  Variant="Variant.Outlined"
+                                  Lines="3"
+                                  Margin="Margin.Dense"
+                                  Class="deepdrft-share-embed-field" />
+                    <MudStack AlignItems="AlignItems.Center" Spacing="0">
+                        <MudIconButton Icon="@Icons.Material.Filled.ContentCopy"
+                                       Color="Color.Primary"
+                                       OnClick="@CopyEmbed"
+                                       aria-label="Copy embed snippet" />
+                        @if (_embedCopied)
+                        {
+                            <MudText Typo="Typo.caption" Color="Color.Success">Copied!</MudText>
+                        }
+                    </MudStack>
                 </MudStack>
-            </MudStack>
+            }
         }
 
     </MudStack>
diff --git a/DeepDrftPublic.Client/Controls/SharePopover.razor.cs b/DeepDrftPublic.Client/Controls/SharePopover.razor.cs
index 111f766..a6217c3 100644
--- a/DeepDrftPublic.Client/Controls/SharePopover.razor.cs
+++ b/DeepDrftPublic.Client/Controls/SharePopover.razor.cs
@@ -1,20 +1,35 @@
+using DeepDrftModels.Enums;
+using DeepDrftPublic.Client.Common;
 using Microsoft.AspNetCore.Components;
 using Microsoft.JSInterop;
 
 namespace DeepDrftPublic.Client.Controls;
 
 /// <summary>
-/// Share affordance for the track detail page: a popover offering a canonical-link copy
-/// and an optional iframe embed snippet. Clipboard writes go through navigator.clipboard;
-/// each copy shows a transient "Copied!" confirmation that resets after a short delay.
+/// Share affordance with two modes from one source of clipboard/popover-chrome logic
+/// (Phase 11 §3b). Track mode (<see cref="EntryKey"/> set) offers a canonical-link copy plus an
+/// optional iframe embed snippet. Release mode (<see cref="ReleaseId"/> set) is copy-link-only —
+/// it copies the absolute form of the release's canonical detail URL and hides the embed
+/// affordance, since a release page is not a single-track embed. Clipboard writes go through
+/// navigator.clipboard; each copy shows a transient "Copied!" confirmation that resets after a
+/// short delay.
 /// </summary>
 public partial class SharePopover : ComponentBase, IDisposable
 {
+    /// <summary>Track mode: the vault entry key of the track to share. Mutually exclusive with the release target.</summary>
     [Parameter] public string? EntryKey { get; set; }
 
+    /// <summary>Release mode: the release id to share. When set (with <see cref="ReleaseMedium"/>), the popover shares the release detail URL and omits the embed option.</summary>
+    [Parameter] public long? ReleaseId { get; set; }
+
+    /// <summary>Release mode: the medium of the release, used to resolve its canonical detail route.</summary>
+    [Parameter] public ReleaseMedium ReleaseMedium { get; set; }
+
     [Inject] public required NavigationManager Navigation { get; set; }
     [Inject] public required IJSRuntime JS { get; set; }
 
+    private bool IsReleaseMode => ReleaseId is not null;
+
     private bool _open;
     private bool _embed;
     private bool _linkCopied;
@@ -32,6 +47,13 @@ public partial class SharePopover : ComponentBase, IDisposable
         }
     }
 
+    // The URL "Copy link" places on the clipboard. Release mode resolves the canonical detail
+    // route (which carries a leading slash) and composes it against BaseUri (which carries a
+    // trailing slash) — trim one to avoid a doubled separator.
+    private string LinkUrl => IsReleaseMode
+        ? $"{Navigation.BaseUri.TrimEnd('/')}{ReleaseRoutes.DetailHref(ReleaseId!.Value, ReleaseMedium)}"
+        : TrackUrl;
+
     private string TrackUrl => $"{Navigation.BaseUri}track/{EntryKey}";
 
     private string EmbedSnippet =>
@@ -43,7 +65,7 @@ public partial class SharePopover : ComponentBase, IDisposable
 
     private async Task CopyLink()
     {
-        if (await CopyToClipboard(TrackUrl))
+        if (await CopyToClipboard(LinkUrl))
         {
             _linkCopied = true;
             await ResetAfterDelay(() => _linkCopied = false);
diff --git a/DeepDrftPublic.Client/Pages/CutDetail.razor b/DeepDrftPublic.Client/Pages/CutDetail.razor
index a08f561..2500049 100644
--- a/DeepDrftPublic.Client/Pages/CutDetail.razor
+++ b/DeepDrftPublic.Client/Pages/CutDetail.razor
@@ -79,10 +79,8 @@ else
                             Play
                         </MudButton>
 
-                        @if (firstTrack is not null)
-                        {
-                            <SharePopover EntryKey="@firstTrack.EntryKey" />
-                        }
+                        @* Release-mode share: copies the canonical /cuts/{id} URL, not a single track (§3b). *@
+                        <SharePopover ReleaseId="@release.Id" ReleaseMedium="@release.Medium" />
                     </div>
                 </div>