github idlefoundry/ca-72 v0.2.6
CA-72 0.2.6

2 hours ago

CA-72 0.2.6

Same sound, lighter on your computer.

Watch and hear it: https://youtu.be/QLfwGqYg4wU

Install

Computer Download
macOS 11 or later, Apple silicon or Intel CA-72-0.2.6-macOS.pkg (signed and notarised; VST3, CLAP, Audio Unit and standalone application)
Windows 10 or 11, 64-bit CA-72-0.2.6-Windows-setup.exe (VST3, CLAP and standalone application)
Windows 10 or 11, 64-bit, without an installer CA-72-0.2.6-Windows-x86_64.zip: unpack it and follow its README.txt
Linux, x86-64 (Ubuntu 22.04, Debian 12, Fedora 36 or later, or Arch) CA-72-0.2.6-Linux-x86_64.tar.gz: unpack it and run ./install.sh
0.1's factory presets, for any platform CA-72-0.2.6-0.1-presets.zip: follow its README.txt

Close your host, run the installer (it installs over earlier versions), then rescan your host's plug-ins. The standalone application is an optional installer component; on Linux, --standalone-only and --plugins-only select what to install. The Windows installer is not yet signed: when Windows says "Windows protected your PC", click More info, then Run anyway.

SHA256SUMS.txt lists checksums for the installers, Windows ZIP, retired presets and sources archive. THIRD-PARTY-NOTICES.txt contains third-party licences; CA-72-0.2.6-git-sources.tar.gz contains the git-pinned dependency sources. The CA-72's own source is this repository at v0.2.6.

In this release

This update is mostly about performance. Every preset and project renders bit-identical to 0.2.5, so the sound hasn't changed at all; it just takes less of your computer to play.

  • HI is lighter. When you play several voices (POLY or DOUBLE), HI now uses up to 17 % less CPU on a Mac and up to 9 % less on Windows and Linux.
  • Several instances play smoothly together. Running more than one CA-72 in a project no longer makes the later ones stutter, and computers with more cores put them to use.
  • The panel rests when you can't see it. Minimise the plug-in window (or, on a Mac, hide or cover it) and it draws far less until you look again, saving CPU while your track plays. This is for VST3, CLAP and the standalone app; Audio Units keep drawing as before.
  • Less background work on Mac. An instance playing HI voices uses about a fifth of a core less while it waits for work.
  • The preset browser is easier to read. Clearer lettering and stronger contrast, with the current preset marked in gold.
  • ULTRA on powerful computers. With six or more fast cores, ULTRA spreads each voice across several cores, so you can play a few voices live. It's still best for offline renders.

Nothing else changes: same presets, same controls, same project compatibility, and output bit-identical to 0.2.5.

Tip: LO is the lightest mode and the default for new instances. HI is now lighter too, and ULTRA is meant for rendering.

Free software under the GNU General Public License, version 3 or later. Copyright © 2026 Idle Foundry Ltd.

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