Overview MainStage is a music production and live performance software that allows musicians to create, record, and perform music. It's part of Apple's professional audio software lineup, alongside Logic Pro.
Key Features
What's New in MainStage 3.6.4
System Requirements
Conclusion MainStage 3.6.4 is a maintenance update that refines the software's performance, stability, and overall user experience. If you're a musician or producer using MainStage, this update is recommended to ensure you're running with the latest improvements and fixes.
MainStage 3.6.4 is a minor maintenance update for Apple’s live performance software, released to address specific stability issues and bugs. The "dmg" file refers to the Apple Disk Image format used to install the software on macOS. Release Overview Release Date: Originally released around July 11, 2023. Primary Focus: Stability improvements and critical bug fixes. Apple Support According to the official release notes , this version resolved two major stability issues: Plug-in Crashes:
Fixed an issue where MainStage would quit unexpectedly when using the Soundtoys Effects Rack Mono/Stereo Logic: Resolved a crash that occurred when bypassing a Mono to Stereo instance of a plug-in. Apple Support Software Context MainStage-3.6.4.dmg
MainStage is designed for musicians and performers to use software instruments and audio effects in a live setting via an intuitive "Stage" interface. It is typically available on the Mac App Store for approximately $29.99. Successor: As of early 2026, MainStage 4 is the current major version. Installation & Verification File Format:
file is a digital installer. Once opened, you drag the MainStage icon into your Applications folder. Checking Your Version:
This report outlines the technical details and stability improvements for MainStage 3.6.4
, a previous update to Apple's live performance companion for Logic Pro. Version Summary : Apple MainStage Release Date : July 11, 2023 : Full version available via the Mac App Store MainStage-3.6.4.dmg Logic Studio Training Compatibility & Requirements Operating System : Supported on macOS Big Sur (11.0) macOS Monterey (12.0)
: Support for macOS Monterey was later dropped in version 3.6.5 (November 2023). Hardware Compatibility Optimized for Intel and Apple Silicon (M1/M2). Requires a minimum of 6GB available disk space (up to 51GB for full sound library). Apple Support Key Improvements in 3.6.4
This update focused primarily on stability and workflow reliability: Logic Studio Training MIDI & Controls Overview MainStage is a music production and live
: Fixed "Do Not Pass MIDI Thru" settings for screen controls and ensured the Assign mode remains active when switching between controls. Visuals & Feedback : Resolved issues where VU Meters mapped to the Loudness plug-in would fail to display correctly. : Fixed crashes related to using the Soundtoys Effects Rack and bypassing Mono-to-Stereo plug-ins. Patch Management : Fixed a bug where pressing
in the Notes section would highlight text instead of creating a new line. Apple Support Current Lifecycle Status As of April 2026, MainStage has advanced to version 4.0 (released January 2026), which introduced features like Ableton Link sync and compatibility with macOS 15.6 (Sequoia)
or later. Version 3.6.4 is considered a legacy update suitable for older macOS environments. between this version and the latest MainStage 4.0 MainStage release notes - Apple Support (AE)
MainStage 3.6.4 was released on July 11, 2023. It primarily focuses on stability improvements, bug fixes, and minor workspace enhancements. Key Features & Enhancements
Workspace & Performance: The Transpose object now displays the total composite value from all levels, renamed Sampler channel strips retain their names, and Expression settings are maintained when changing Audio Settings. Stability & Reliability
Fixes: Addresses issues with Soundtoys Effects Rack, bypassing plug-ins, memory usage with the Multimeter, and screen control behaviors (MIDI Thru, Mapping, and VU meters). Additional Resources Live Performance : MainStage is designed for live
For full technical documentation, you can refer to the official MainStage Release Notes or download the comprehensive MainStage User Guide (PDF). 6 release? MainStage release notes - Apple Support
MainStage-3.6.4.dmg is a disk image file containing MainStage 3, version 3.6.4. MainStage is a professional live performance application developed by Apple Inc. for macOS. It is part of the same audio ecosystem as Logic Pro X, designed to turn a Mac computer into a live rig for keyboardists, guitarists, vocalists, and electronic musicians.
The .dmg (Apple Disk Image) format is a standard way Apple distributes software. When you open this file, it mounts a virtual drive on your Mac, allowing you to drag the MainStage application into your Applications folder to install it.
MainStage does not allow two versions to coexist easily. If you have MainStage 3.6.6 installed, drag the old app from the Applications folder to Trash before opening the DMG.
Audio software is notorious for breaking during major OS updates. A waveshaper or a vintage EQ you rely on for your signature guitar tone might work perfectly in 3.6.4 but crash in 3.6.6. Many engineers freeze their rigs at a known “good” version to ensure a tour isn’t derailed by a coding error.