diff --git a/Package.swift b/Package.swift
index 4a20404..806b695 100644
--- a/Package.swift
+++ b/Package.swift
@@ -16,7 +16,7 @@ let package = Package(
         .executableTarget(
             name: "ForelApp",
             dependencies: ["ForelCore"],
-            resources: [.copy("Resources")]
+            resources: [.copy("Resources"), .copy("../../CHANGELOG.md")]
         ),
         .testTarget(
             name: "ForelCoreTests",
diff --git a/Sources/ForelApp/AppDelegate.swift b/Sources/ForelApp/AppDelegate.swift
index 0fa5442..0d2fe4c 100644
--- a/Sources/ForelApp/AppDelegate.swift
+++ b/Sources/ForelApp/AppDelegate.swift
@@ -20,6 +20,10 @@ final class AppDelegate: NSObject, NSApplicationDelegate, NSWindowDelegate {
             setUpStatusBar()
         }
         showMainWindowOnFirstLaunch()
+        if CommandLine.arguments.contains("-forelAfterUpdate") {
+            updater.loadReleaseNotesFromChangelog()
+            openMainWindow()
+        }
     }
 
     /// A brand-new install otherwise only shows up as a menu bar icon
diff --git a/Sources/ForelApp/Update/UpdaterManager.swift b/Sources/ForelApp/Update/UpdaterManager.swift
index 2ba37cd..e219622 100644
--- a/Sources/ForelApp/Update/UpdaterManager.swift
+++ b/Sources/ForelApp/Update/UpdaterManager.swift
@@ -26,6 +26,7 @@ final class UpdaterManager: ObservableObject {
 
         let tagName: String
         let htmlUrl: URL
+        let body: String
         let assets: [Asset]
         let draft: Bool
         let prerelease: Bool
@@ -33,6 +34,7 @@ final class UpdaterManager: ObservableObject {
         enum CodingKeys: String, CodingKey {
             case tagName = "tag_name"
             case htmlUrl = "html_url"
+            case body
             case assets
             case draft
             case prerelease
@@ -58,6 +60,8 @@ final class UpdaterManager: ObservableObject {
     @Published private(set) var isChecking = false
     @Published private(set) var isInstalling = false
     @Published private(set) var installError: String?
+    @Published var showReleaseNotes = true
+    @Published var releaseNotes: (version: String, body: String, url: URL)? = ("1.0.0", "- Correction bug X\n- Nouveau filtre Y", URL(string: "https://github.com/lab421/forel/releases/tag/v1.0.0")!)
 
     private let db: Database
     private var timer: Timer?
@@ -189,6 +193,65 @@ final class UpdaterManager: ObservableObject {
         release.tagName.hasPrefix("v") ? String(release.tagName.dropFirst()) : release.tagName
     }
 
+    /// Loads the section of CHANGELOG.md for the currently installed version
+    /// and populates `releaseNotes` so the UI can show a sheet.
+    func loadReleaseNotesFromChangelog() {
+        let current = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String
+        loadReleaseNotesFromChangelog(version: current)
+    }
+
+    /// Loads the section of CHANGELOG.md matching `version` (or the first
+    /// versioned section if `version` is nil).
+    func loadReleaseNotesFromChangelog(version: String?) {
+        guard let url = Bundle.module.url(forResource: "CHANGELOG", withExtension: "md"),
+              let content = try? String(contentsOf: url, encoding: .utf8) else { return }
+
+        let lines = content.components(separatedBy: .newlines)
+        let header = version.map { "## [\($0)]" }
+        var sectionLines: [String] = []
+        var inSection = false
+        var foundFirst = false
+
+        for line in lines {
+            if line.hasPrefix("## [") {
+                if inSection { break }
+                if let header {
+                    if line.hasPrefix(header) {
+                        inSection = true
+                    }
+                } else if !foundFirst {
+                    inSection = true
+                    foundFirst = true
+                }
+                continue
+            }
+            if inSection {
+                sectionLines.append(line)
+            }
+        }
+
+        let body = sectionLines.drop { $0.trimmingCharacters(in: .whitespaces).isEmpty }.joined(separator: "\n").trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !body.isEmpty else { return }
+        let v = version ?? Self.findFirstVersion(in: lines)
+        if let url = URL(string: "https://github.com/\(Self.repo)/releases/tag/v\(v)") {
+            releaseNotes = (v, body, url)
+        }
+        showReleaseNotes = true
+    }
+
+    private static func findFirstVersion(in lines: [String]) -> String {
+        for line in lines {
+            let trimmed = line.trimmingCharacters(in: .whitespaces)
+            if trimmed.hasPrefix("## [") {
+                let start = trimmed.index(trimmed.startIndex, offsetBy: 4)
+                if let end = trimmed.firstIndex(of: "]") {
+                    return String(trimmed[start..<end])
+                }
+            }
+        }
+        return "0.0.0"
+    }
+
     static func isNewer(_ candidate: String, than current: String) -> Bool {
         compareVersions(candidate, current) == .orderedDescending
     }
@@ -305,7 +368,7 @@ final class UpdaterManager: ObservableObject {
         /usr/bin/hdiutil detach "$MNT" -quiet 2>/dev/null || /usr/bin/hdiutil detach "$MNT" -force -quiet 2>/dev/null || true
         /bin/rmdir "$MNT" 2>/dev/null
         /bin/rm -f "$DMG" "$SCRIPT"
-        /usr/bin/open "$LAUNCH"
+        /usr/bin/open "$LAUNCH" --args -forelAfterUpdate
         """
         let scriptURL = FileManager.default.temporaryDirectory
             .appendingPathComponent("forel-update-\(pid)-\(UUID().uuidString).sh")
diff --git a/Sources/ForelApp/Views/ContentView.swift b/Sources/ForelApp/Views/ContentView.swift
index f97bd02..4726d0a 100644
--- a/Sources/ForelApp/Views/ContentView.swift
+++ b/Sources/ForelApp/Views/ContentView.swift
@@ -3,6 +3,7 @@ import ForelCore
 
 struct ContentView: View {
     @EnvironmentObject var model: AppModel
+    @EnvironmentObject var updater: UpdaterManager
 
     var body: some View {
         NavigationSplitView {
@@ -27,9 +28,10 @@ struct ContentView: View {
         }
         .preferredColorScheme(model.appTheme.colorScheme)
         .tint(ForelTheme.accent)
-        // ForelTheme.accent is a plain static var, not observable; bumping the
-        // identity here forces every descendant to rebuild and re-read it.
         .id(model.accentVersion)
+        .sheet(isPresented: $updater.showReleaseNotes) {
+            ReleaseNotesView(version: updater.releaseNotes?.version ?? "", markdown: updater.releaseNotes?.body ?? "", url: updater.releaseNotes?.url)
+        }
     }
 
     private var errorBinding: Binding<Bool> {
@@ -44,3 +46,69 @@ struct ContentView: View {
         )
     }
 }
+
+private struct ReleaseNotesView: View {
+    let version: String
+    let markdown: String
+    let url: URL?
+    @Environment(\.dismiss) private var dismiss
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 16) {
+            HStack(spacing: 10) {
+                ZStack {
+                    RoundedRectangle(cornerRadius: 9, style: .continuous)
+                        .fill(ForelTheme.accent.opacity(0.18))
+                    Image(systemName: "sparkles.rectangle.stack")
+                        .font(.system(size: 15, weight: .semibold))
+                        .foregroundStyle(ForelTheme.accent)
+                }
+                .frame(width: 34, height: 34)
+                VStack(alignment: .leading, spacing: 1) {
+                    Text("What's New in \(version)")
+                        .font(.system(size: 15, weight: .bold))
+                        .foregroundStyle(ForelTheme.primaryText)
+                    Text("Forel has been updated")
+                        .font(.system(size: 11))
+                        .foregroundStyle(ForelTheme.secondaryText)
+                }
+                Spacer()
+                Button {
+                    dismiss()
+                } label: {
+                    Image(systemName: "xmark")
+                        .font(.system(size: 11, weight: .bold))
+                }
+                .buttonStyle(.plain)
+                .foregroundStyle(ForelTheme.secondaryText)
+            }
+
+            Divider().overlay(ForelTheme.divider)
+
+            ScrollView {
+                Text(markdown)
+                    .font(.system(size: 12))
+                    .foregroundStyle(ForelTheme.primaryText)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                    .textSelection(.enabled)
+            }
+            .scrollIndicators(.never)
+
+            HStack {
+                if let url {
+                    Button("View on GitHub") {
+                        NSWorkspace.shared.open(url)
+                    }
+                    .buttonStyle(SecondaryButtonStyle())
+                }
+                Spacer()
+                Button("Continue") { dismiss() }
+                    .buttonStyle(PrimaryButtonStyle())
+                    .keyboardShortcut(.defaultAction)
+            }
+        }
+        .padding(22)
+        .frame(width: 520, height: 420)
+        .background(ForelTheme.background)
+    }
+}