diff --git a/CHANGELOG.md b/CHANGELOG.md
index 598c110..07a8e8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,16 +2,19 @@
 
 ## [Unreleased]
 
-## [v1.12.0](https://github.com/Thavarshan/phpvm/compare/v1.11.0...v1.12.0) - 2026-05-20
+## [v1.12.1](https://github.com/Thavarshan/phpvm/compare/v1.12.0...v1.12.1) - 2026-05-24
 
 ### Added
 
-- **`latest-remote` keyword:** Install the newest available remote PHP version directly from package manager repos with `phpvm install latest-remote`.
-- **`latest-available` alias:** Alias for `latest-remote`.
+- **`self-update` command:** Add `phpvm self-update` to automatically update phpvm to the latest stable release and print the updated version.
 
+## [v1.12.0](https://github.com/Thavarshan/phpvm/compare/v1.11.0...v1.12.0) - 2026-05-20
 
 ### Added
 
+- **`latest-remote` keyword:** Install the newest available remote PHP version directly from package manager repos with `phpvm install latest-remote`.
+- **`latest-available` alias:** Alias for `latest-remote`.
+
 - **`exec` command:** Run a command with a specific PHP version without globally switching. Executes in a subshell to isolate PATH changes from the current shell. Usage: `phpvm exec <version> <command> [args...]`.
 - **`run` command:** Sugar for `phpvm exec <version> php <script>`. Usage: `phpvm run <version> [script] [args...]`.
 - **`ls-remote` command:** List available PHP versions from system package manager repositories (Homebrew, apt, dnf, yum, pacman). Supports optional pattern filtering (e.g., `phpvm ls-remote 8.2`).
@@ -317,7 +320,7 @@
 
 ## [v1.3.0](https://github.com/Thavarshan/phpvm/compare/v1.2.0...v1.3.0) - 2025-05-11
 
-## Added
+### Added
 
 - Added `system` command to easily switch back to system PHP version
 - Added timestamps to all log messages for better traceability and debugging
@@ -330,7 +333,7 @@
 - Added ability to run self-tests with `phpvm test` command
 - Added debugging capability via `DEBUG=true` environment variable
 
-## Changed
+### Changed
 
 - Changed logging format to include timestamps and log levels
 - Changed sudo handling to use a centralized helper function
@@ -341,7 +344,7 @@
 - Improved bash/zsh shell compatibility with better sourcing logic
 - Improved code organization and reduced duplication with helper functions
 
-## Fixed
+### Fixed
 
 - Fixed shell crash issue when sourcing in zsh with p10k theme
 - Fixed path expansion issues in Ubuntu bashrc configurations
diff --git a/README.md b/README.md
index bed90d5..0eede3f 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 ```sh
 $ phpvm version
-phpvm version 1.11.0
+phpvm version 1.12.1
 
 PHP Version Manager for macOS and Linux
 Author: Jerome Thayananthajothy <tjthavarshan@gmail.com>
@@ -41,6 +41,7 @@ PHP 8.1.13
 - **Run commands with a specific PHP version** without globally switching (`phpvm exec`, `phpvm run`).
 - **List available remote PHP versions** from your system package manager (`phpvm ls-remote`).
 - **Install the latest available remote PHP version** with `phpvm install latest-remote`.
+- **Update phpvm in place** using `phpvm self-update` to pull the latest stable script version.
 - **Resolve version descriptors and aliases** to installed version numbers (`phpvm resolve`).
 - Auto-switch PHP versions based on project `.phpvmrc` (configurable depth via `PHPVM_PHPVMRC_MAX_DEPTH`).
 - Automatic directory-based switching via built-in cd hook (`PROMPT_COMMAND` for bash, `chpwd` for zsh).
@@ -122,6 +123,7 @@ If the installation was successful, it should output the path to `phpvm`.
 | `phpvm list` or `phpvm ls`                 | List all installed PHP versions                                           |
 | `phpvm ls-remote [pattern]`                | List available remote PHP versions                                        |
 | `phpvm install latest-remote`               | Install the latest remote PHP version available                          |
+| `phpvm self-update`                         | Update phpvm to the latest stable release                                |
 | `phpvm resolve <version\|alias>`           | Resolve a version descriptor to an installed version                      |
 | `phpvm alias [name] [ver]`                 | Create, update, or list version aliases                                   |
 | `phpvm unalias <name>`                     | Remove version alias                                                      |
diff --git a/phpvm.sh b/phpvm.sh
index 8fcdb57..d93e467 100755
--- a/phpvm.sh
+++ b/phpvm.sh
@@ -2,7 +2,7 @@
 
 # phpvm - A PHP Version Manager for macOS and Linux
 # Author: Jerome Thayananthajothy (tjthavarshan@gmail.com)
-# Version: 1.10.0
+# Version: 1.12.1
 #
 # IMPORTANT: This script is written for bash and uses bashisms (arrays, process substitution, etc.)
 # For sourcing into your shell, use bash only. Zsh users should run phpvm via:
@@ -11,7 +11,7 @@
 
 # shellcheck disable=SC2155  # Allow declare and assign on same line for better readability
 
-PHPVM_VERSION="1.12.0"
+PHPVM_VERSION="1.12.1"
 
 # Test mode flag
 PHPVM_TEST_MODE="${PHPVM_TEST_MODE:-false}"
@@ -2623,6 +2623,7 @@ Usage:
   phpvm alias [name] [ver]  Create, update, or list version aliases
   phpvm unalias <name>      Remove version alias
   phpvm cache <dir|clear>   Manage cache directory
+  phpvm self-update         Update phpvm to the latest stable version
   phpvm help                Show this help message
   phpvm info                Show system information for debugging
   phpvm version             Show version information
@@ -2678,6 +2679,129 @@ Usage: phpvm help
 EOF
 }
 
+phpvm_get_self_update_target() {
+    local script_path
+    if [ -n "${PHPVM_SELF_UPDATE_DEST:-}" ]; then
+        script_path="$PHPVM_SELF_UPDATE_DEST"
+    else
+        script_path="${BASH_SOURCE[0]:-$0}"
+    fi
+
+    if [ -L "$script_path" ] && command_exists readlink; then
+        local link
+        link=$(command readlink "$script_path")
+        if [ "${link#/}" != "$link" ]; then
+            script_path="$link"
+        else
+            local dir
+            dir=$(cd "$(dirname "$script_path")" 2> /dev/null && pwd)
+            script_path="$dir/$link"
+        fi
+    fi
+
+    printf '%s
+' "$script_path"
+}
+
+phpvm_download_url_to_file() {
+    local url="$1"
+    local output="$2"
+
+    if command_exists curl; then
+        command curl --fail --silent --location "$url" > "$output"
+        return "$?"
+    fi
+
+    if command_exists wget; then
+        command wget --quiet --output-document="$output" "$url"
+        return "$?"
+    fi
+
+    phpvm_err "curl or wget is required for self-update."
+    return "$PHPVM_EXIT_ERROR"
+}
+
+phpvm_extract_version_from_file() {
+    local file="$1"
+    local version
+
+    version=$(command grep -Eo 'PHPVM_VERSION="[0-9]+\.[0-9]+\.[0-9]+"' "$file" 2> /dev/null | command head -1 | command sed 's/PHPVM_VERSION="//;s/"$//')
+    if [ -z "$version" ]; then
+        return "$PHPVM_EXIT_ERROR"
+    fi
+
+    printf '%s
+' "$version"
+    return "$PHPVM_EXIT_SUCCESS"
+}
+
+phpvm_self_update() {
+    local source_url="${PHPVM_SELF_UPDATE_URL:-https://raw.githubusercontent.com/Thavarshan/phpvm/main/phpvm.sh}"
+    local tmp_file
+    local remote_version
+    local target_script
+
+    target_script=$(phpvm_get_self_update_target) || return "$PHPVM_EXIT_ERROR"
+    if [ -z "$target_script" ]; then
+        phpvm_err "Unable to determine phpvm script path for self-update."
+        return "$PHPVM_EXIT_ERROR"
+    fi
+
+    tmp_file=$(mktemp) || {
+        phpvm_err "Failed to create temporary file for self-update."
+        return "$PHPVM_EXIT_FILE_ERROR"
+    }
+
+    if phpvm_is_test_mode && [ -n "${PHPVM_SELF_UPDATE_TEST_SOURCE:-}" ]; then
+        if [ ! -f "$PHPVM_SELF_UPDATE_TEST_SOURCE" ]; then
+            rm -f "$tmp_file"
+            phpvm_err "Self-update test source not found: $PHPVM_SELF_UPDATE_TEST_SOURCE"
+            return "$PHPVM_EXIT_FILE_ERROR"
+        fi
+        command cp "$PHPVM_SELF_UPDATE_TEST_SOURCE" "$tmp_file"
+    else
+        if ! phpvm_download_url_to_file "$source_url" "$tmp_file"; then
+            rm -f "$tmp_file"
+            phpvm_err "Failed to download phpvm update from $source_url"
+            return "$PHPVM_EXIT_ERROR"
+        fi
+    fi
+
+    remote_version=$(phpvm_extract_version_from_file "$tmp_file") || {
+        rm -f "$tmp_file"
+        phpvm_err "Failed to determine remote phpvm version."
+        return "$PHPVM_EXIT_ERROR"
+    }
+
+    if [ "$remote_version" = "$PHPVM_VERSION" ]; then
+        rm -f "$tmp_file"
+        phpvm_echo "You are already on the latest version: v$PHPVM_VERSION."
+        return "$PHPVM_EXIT_SUCCESS"
+    fi
+
+    phpvm_echo "Updating phpvm..."
+
+    if [ ! -w "$target_script" ] && command_exists sudo; then
+        if ! run_with_sudo cp "$tmp_file" "$target_script"; then
+            rm -f "$tmp_file"
+            phpvm_err "Failed to update phpvm."
+            return "$PHPVM_EXIT_ERROR"
+        fi
+    else
+        if ! command cp "$tmp_file" "$target_script"; then
+            rm -f "$tmp_file"
+            phpvm_err "Failed to update phpvm."
+            return "$PHPVM_EXIT_ERROR"
+        fi
+    fi
+
+    chmod +x "$target_script" 2> /dev/null || true
+    rm -f "$tmp_file"
+
+    phpvm_echo "phpvm successfully updated to the latest version: v$remote_version."
+    return "$PHPVM_EXIT_SUCCESS"
+}
+
 # Print system information for debugging
 print_system_info() {
     phpvm_echo "System Information:"
@@ -3283,6 +3407,10 @@ main() {
         print_version
         exit "$PHPVM_EXIT_SUCCESS"
         ;;
+    self-update)
+        phpvm_self_update
+        exit "$?"
+        ;;
     unload)
         phpvm_unload
         exit "$?"
@@ -3405,6 +3533,10 @@ main() {
         phpvm_cache "$@"
         exit "$?"
         ;;
+    self-update)
+        phpvm_self_update
+        exit "$?"
+        ;;
     *)
         phpvm_err "Unknown command: $command"
         print_help
diff --git a/release-notes-1.12.0.md b/release-notes-1.12.0.md
deleted file mode 100644
index 78fb9a5..0000000
--- a/release-notes-1.12.0.md
+++ /dev/null
@@ -1,6 +0,0 @@
-## [v1.12.0](https://github.com/Thavarshan/phpvm/compare/v1.11.0...v1.12.0) - 2026-05-20
-
-### Added
-
-- **`latest-remote` keyword:** Install the newest available remote PHP version directly from package manager repos with `phpvm install latest-remote`.
-- **`latest-available` alias:** Alias for `latest-remote`.
diff --git a/tests/01_core.bats b/tests/01_core.bats
index fdd730b..b3d8312 100644
--- a/tests/01_core.bats
+++ b/tests/01_core.bats
@@ -18,6 +18,83 @@ load test_helper
     [[ "$output" =~ "Usage:" ]]
 }
 
+@test "phpvm self-update reports already latest version" {
+    local remote_file="$TEST_DIR/phpvm-latest.sh"
+    cat > "$remote_file" <<'EOF'
+#!/bin/bash
+PHPVM_VERSION="1.12.1"
+EOF
+
+    run env PHPVM_TEST_MODE=true PHPVM_SELF_UPDATE_TEST_SOURCE="$remote_file" PHPVM_SELF_UPDATE_DEST="$TEST_DIR/phpvm-self-update-target.sh" bash "$BATS_TEST_DIRNAME/../phpvm.sh" self-update
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "You are already on the latest version: v1.12.1." ]]
+}
+
+@test "phpvm self-update replaces script when newer version is available" {
+    local remote_file="$TEST_DIR/phpvm-updated.sh"
+    local target_file="$TEST_DIR/phpvm-self-update-target.sh"
+    cat > "$remote_file" <<'EOF'
+#!/bin/bash
+PHPVM_VERSION="1.12.2"
+EOF
+    touch "$target_file"
+
+    run env PHPVM_TEST_MODE=true PHPVM_SELF_UPDATE_TEST_SOURCE="$remote_file" PHPVM_SELF_UPDATE_DEST="$target_file" bash "$BATS_TEST_DIRNAME/../phpvm.sh" self-update
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "phpvm successfully updated to the latest version: v1.12.2." ]]
+    [ "$(grep -oE 'PHPVM_VERSION="[0-9]+\.[0-9]+\.[0-9]+"' "$target_file")" = "PHPVM_VERSION=\"1.12.2\"" ]
+}
+
+@test "phpvm self-update downloads from remote URL and updates script" {
+    if ! command -v python3 > /dev/null 2>&1; then
+        skip "python3 is required for remote self-update integration test"
+    fi
+
+    local server_root="$TEST_DIR/http-server"
+    local server_log="$TEST_DIR/http-server.log"
+    local target_file="$TEST_DIR/phpvm-self-update-http-target.sh"
+    mkdir -p "$server_root"
+
+    cat > "$server_root/phpvm.sh" <<'EOF'
+#!/bin/bash
+PHPVM_VERSION="1.12.3"
+EOF
+    chmod +x "$server_root/phpvm.sh"
+
+    python3 - "$server_root" <<'PY' > "$server_log" 2>&1 &
+import http.server
+import socketserver
+import os
+import sys
+
+os.chdir(sys.argv[1])
+with socketserver.TCPServer(("127.0.0.1", 0), http.server.SimpleHTTPRequestHandler) as httpd:
+    print(httpd.server_address[1], flush=True)
+    sys.stdout.flush()
+    httpd.serve_forever()
+PY
+    local server_pid=$!
+    sleep 1
+
+    local port
+    port=$(head -n 1 "$server_log" | tr -d '[:space:]')
+    if [ -z "$port" ]; then
+        kill "$server_pid" > /dev/null 2>&1 || true
+        wait "$server_pid" 2>/dev/null || true
+        echo "Failed to start local HTTP server" >&2
+        return 1
+    fi
+
+    touch "$target_file"
+
+    trap 'kill "$server_pid" > /dev/null 2>&1 || true; wait "$server_pid" 2>/dev/null || true' RETURN
+
+    run env PHPVM_TEST_MODE=true PHPVM_SELF_UPDATE_URL="http://127.0.0.1:$port/phpvm.sh" PHPVM_SELF_UPDATE_DEST="$target_file" bash "$BATS_TEST_DIRNAME/../phpvm.sh" self-update
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "phpvm successfully updated to the latest version: v1.12.3." ]]
+    [ "$(grep -oE 'PHPVM_VERSION="[0-9]+\.[0-9]+\.[0-9]+"' "$target_file")" = "PHPVM_VERSION=\"1.12.3\"" ]
+}
+
 @test "sanitize_input rejects dangerous characters" {
     run sanitize_input "8.1; rm -rf /"
     [ "$status" -ne 0 ]