Includes Prologue, Chapter 1 and a preview of Chapter 2. On 21 January 2019, the project had been officially cancelled. The 'classic' Mac OS is the original Macintosh operating system that was introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until the introduction of Mac OS X in 2001. Apple released the original Macintosh on January 24, 1984; its early system software was partially based on the Lisa OS and the Xerox PARC Alto computer, which former Apple CEO Steve Jobs. ITCH Controllers with internal audio mixing Allen & Heath Xone:DX Novation TWITCH Numark NS7 Numark NS6 Pioneer DDJ-S1 Vestax VCI-300. ITCH Components for outboard audio mixing Denon DJ DN-HC5000 Numark V7. ITCH DJ FX Controllers Numark NSFX Vestax VFX-1. Support for all current OS. Mac OS X 10.6 / 10.5 / 10.4.11 Windows 7 / Vista / XP 32-bit.

ITCH 2.0.1 (Legacy)

What's new in ITCH 2.0?

Features in ITCH 2.0 and above

• A fresh new look, with changeable Night & Day modes.
• New SP-6 Sample Player including Sample Sync.
• Multiple display modes to suit different styles of DJing - vertical, horizontal, stack and library views.
• Re-optimised Serato SmartSync engine for precise grids and locked grooves.
• Improved Library Management so you can easily copy crates & tracks to external drives for gigs.
• Smart Crates which auto-fill using keywords from your music library.
• Serato Playlists to share your tracklists either as you play, or online afterwards.
• Album Art Views for enhanced browsing.
• Improved Instant Doubles functionality, including support for 4 decks.
• ITCH 2.0.1 fixes the firmware updating issue affecting the Vestax VCI-300 MKI

Hardware and OS Support

Support for current ITCH hardware

ITCH Controllers with internal audio mixing
Allen & Heath Xone:DX
Novation TWITCH
Numark NS7
Numark NS6
Pioneer DDJ-S1
Vestax VCI-300

Sunset (itch) Mac Os X

ITCH Components for outboard audio mixing
Denon DJ DN-HC5000
Numark V7

ITCH DJ FX Controllers
Numark NSFX
Vestax VFX-1

Support for all current OS

Sunset (itch) Mac Os Update

Mac OS X 10.6 / 10.5 / 10.4.11
Windows 7 / Vista / XP 32-bit
Windows 7 / Vista 64-bit

Read the full ITCH 2.0.1 release notes.

To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.

Learn how to upgrade to macOS Big Sur, the latest version of macOS.

Check compatibility

If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.

To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.

Make a backup

Before installing, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.

Download macOS

It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.

Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.

• macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
• macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
• macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion

Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.

• macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
• OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
• OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard

Install macOS

Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.

If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.

Learn more

You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.