Unlike a standard patch, Library Update 39 is not a new drum kit (like the "Metal" or "Indie" ADpaks). Instead, it is a sample library infrastructure update. It updates the playback engine's internal routing for all existing ADpaks. Without Update 39, version 1.5.7 will not recognize your old samples correctly. You might hear "missing samples" or clicking noises.
The term “39link” refers to an internal database update for your installed Addictive Drums sound libraries. Unlike the main plugin engine (v157), the 39link update specifically targets:
Without the 39link library update, you may experience missing samples, “library not found” errors, or unusual MIDI playback behavior—even if the v157 engine is correctly installed.
Library updates incrementally expand or refine the included drum content. A “Library Update 39” typically consists of one or more of the following:
These updates improve realism and offer new tonal palettes without changing the core plugin features. Unlike a standard patch, Library Update 39 is
While v1.5.7 + Update 39 is stable, XLN strongly recommends migrating to Addictive Drums 2 (modern UI, improved performance, ongoing support). You can import v1 ADpaks into AD2 using the free “AD2 Legacy” tool.
This write-up is for informational purposes. Always use official installers from your XLN Audio user account.
The recent release for XLN Audio Addictive Drums 2 version 2.9.0
(as of January 14, 2026), which focuses on fixing automation issues for AU and AAX formats. This follows the major v2.7 update Without the 39link library update, you may experience
that introduced critical workflow features like double-kick simulation and "Tone Designer" on Flexi slots.
The specific version "v157" and "library update 39" appear to refer to legacy or specific third-party repackaged versions (like those from R2R) often found in community forums. Core Features & Recent Updates Double Kick Simulation
: Version 2.7 added a "Link to kick (Alternating)" feature, allowing fast MIDI notes to alternate between two kick drums for more realistic metal and hard rock performances. Tone Designer
: Now available on Flexi slots, this tool allows for surgical control over drum resonance and envelope. Library updates incrementally expand or refine the included
: A v2.6 addition that lets you save up to 5 mixer configurations per session to quickly A/B different drum sounds. Beat Shortlist
: Allows you to quickly mark and compare MIDI grooves without leaving the browser. Compressor Boost Mode
: A dedicated multiband compression switch for kicks and snares to add punch and "thump" with one click. Installation & Library Setup For official users, the process is centralized through the XLN Online Installer Installation Guide - XLN Audio
Run the downloaded file. Use your XLN account credentials to log in to the XLN Online Installer.
Installing XLN Audio Addictive Drums - Focusrite User Guides