diff --git a/.github/workflows/aur.yml b/.github/workflows/aur.yml
index 9cb54f0..898b719 100644
--- a/.github/workflows/aur.yml
+++ b/.github/workflows/aur.yml
@@ -56,6 +56,8 @@ jobs:
 
           build() {
             cd "\$srcdir/\$pkgname-\$pkgver"
+            export CARGO_PROFILE_RELEASE_LTO=false
+            export RUSTFLAGS="${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
             cargo build --release --locked
           }
 
@@ -76,10 +78,10 @@ jobs:
           	arch = aarch64
           	license = MIT
           	makedepends = cargo
-          	options = !lto
           	depends = gcc-libs
           	optdepends = gcc: build C/C++ projects with GCC
           	optdepends = clang: build C/C++ projects with Clang
+            options = !lto
           	source = dcr-${PKGVER}.tar.gz::${SRC_URL}
           	sha256sums = ${SHA256}
 
diff --git a/README.md b/README.md
index 82c3bf6..72e704c 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The current implementation is written in Rust.
 - Run the compiled binary
 - Clean build artifacts
 - Generate a minimal C project template
-- Update the binary via `dcr --update` (GitHub Releases)
+- Update the binary via `dcr --update` (GitHub Releases, not for pacman/AUR installs)
 
 ## Supported Platforms
 - Linux: `x86_64-unknown-linux-gnu`
@@ -25,6 +25,13 @@ The current implementation is written in Rust.
 
 ## Installation
 
+### Package Manager
+
+**Arch Linux**
+```sh
+yay -S dcr # or paru and other AUR package managers
+```
+
 ### From Source
 
 ```sh
@@ -57,6 +64,14 @@ Release assets:
 - `dcr-aarch64-apple-darwin`
 - `dcr-x86_64-pc-windows-msvc.exe`
 
+## Update
+
+- If DCR was installed from GitHub release assets, `install.sh`, `install.ps1`, or built manually:
+  - use `dcr --update`
+- If DCR is installed via `pacman/AUR`:
+  - update with your package manager: `paru/yay -Syu dcr` or `sudo pacman -Syu dcr`
+  - `dcr --update` detects package-managed installs and asks you to update via package manager
+
 ## Quick Start
 
 Create a new project:
diff --git a/docs/README_ru.md b/docs/README_ru.md
index ecfd311..8b15dc4 100644
--- a/docs/README_ru.md
+++ b/docs/README_ru.md
@@ -15,7 +15,7 @@ DCR — это утилита для управления проектами н
 - Запуск собранного бинарника
 - Очистка результатов сборки
 - Генерация минимального шаблона C-проекта
-- Обновление бинарника через `dcr --update` (GitHub Releases)
+- Обновление бинарника через `dcr --update` (GitHub Releases, не для pacman-установок)
 
 ## Поддерживаемые платформы
 - Linux: `x86_64-unknown-linux-gnu`
@@ -25,6 +25,13 @@ DCR — это утилита для управления проектами н
 
 ## Установка
 
+### Пакетный менеджер
+
+**ArchLinux**
+```sh
+yay -S dcr # или paru и остальные менеджеры пакетов AUR 
+```
+
 ### Из исходников
 
 ```sh
@@ -57,6 +64,14 @@ irm https://dcr.dexoron.su/install.ps1 | iex
 - `dcr-aarch64-apple-darwin`
 - `dcr-x86_64-pc-windows-msvc.exe`
 
+## Обновление
+
+- Если DCR установлен из GitHub Releases, через `install.sh`, `install.ps1` или собран вручную:
+  - используйте `dcr --update`
+- Если DCR установлен через `pacman/AUR`:
+  - обновляйте через пакетный менеджер: `paru/yay -Syu dcr` или `sudo pacman -Syu dcr`
+  - `dcr --update` определяет пакетную установку и подсказывает обновляться через пакетный менеджер
+
 ## Быстрый старт
 
 Создать новый проект:
diff --git a/packaging/aur/dcr/PKGBUILD b/packaging/aur/dcr/PKGBUILD
index 1f75486..6595f83 100644
--- a/packaging/aur/dcr/PKGBUILD
+++ b/packaging/aur/dcr/PKGBUILD
@@ -1,6 +1,6 @@
 pkgname=dcr
 pkgver=0.2.1
-pkgrel=2
+pkgrel=3
 pkgdesc="Cargo-like utility to manage C/C++ projects"
 arch=('x86_64' 'aarch64')
 url="https://github.com/dexoron/dcr"
@@ -17,6 +17,8 @@ sha256sums=('30e334fa98cd51073c0fa84c80a982584b00156b57084311ad53419441ce6235')
 
 build() {
   cd "$srcdir/$pkgname-$pkgver"
+  export CARGO_PROFILE_RELEASE_LTO=false
+  export RUSTFLAGS="${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
   cargo build --release --locked
 }
 
diff --git a/src/cli/flag_update.rs b/src/cli/flag_update.rs
index eab88ec..d74e911 100644
--- a/src/cli/flag_update.rs
+++ b/src/cli/flag_update.rs
@@ -3,6 +3,7 @@ use reqwest::blocking::Client;
 use serde::Deserialize;
 use std::fs;
 use std::path::{Path, PathBuf};
+use std::process::Command;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 const LATEST_RELEASE_URL: &str = "https://api.github.com/repos/dexoron/dcr/releases/latest";
@@ -25,6 +26,22 @@ pub fn flag_update(args: &[String]) -> i32 {
         return 1;
     }
 
+    let current_exe = match std::env::current_exe() {
+        Ok(path) => path,
+        Err(_) => {
+            error("Failed to resolve current binary path");
+            return 1;
+        }
+    };
+
+    if let Some(package_name) = pacman_owned_package(&current_exe) {
+        warn("This dcr binary is managed by pacman/AUR");
+        println!(
+            "Update via package manager: yay/paru -Syu {package_name} or sudo pacman -Syu {package_name}"
+        );
+        return 0;
+    }
+
     let current_version = env!("CARGO_PKG_VERSION");
     let target = env!("DCR_TARGET");
     let client = match Client::builder().user_agent("dcr-updater").build() {
@@ -67,13 +84,6 @@ pub fn flag_update(args: &[String]) -> i32 {
         }
     };
 
-    let current_exe = match std::env::current_exe() {
-        Ok(path) => path,
-        Err(_) => {
-            error("Failed to resolve current binary path");
-            return 1;
-        }
-    };
     let temp_path = temp_binary_path(&current_exe);
 
     if fs::write(&temp_path, &bytes).is_err() {
@@ -157,3 +167,23 @@ fn set_executable_permissions(path: &Path) {
         }
     }
 }
+
+#[cfg(target_os = "linux")]
+fn pacman_owned_package(path: &Path) -> Option<String> {
+    let output = Command::new("pacman").arg("-Qoq").arg(path).output().ok()?;
+    if !output.status.success() {
+        return None;
+    }
+
+    let package_name = String::from_utf8_lossy(&output.stdout).trim().to_string();
+    if package_name.is_empty() {
+        return None;
+    }
+
+    Some(package_name)
+}
+
+#[cfg(not(target_os = "linux"))]
+fn pacman_owned_package(_path: &Path) -> Option<String> {
+    None
+}