The Challenges of Transitioning to macOS Catalina

To ease the transition, Apple delayed their requirement for notarisation until February 3rd, 2020. This delay may lead to an increase in issues due to a lack of applications being notarised, although software working under Catalina before this date continues to work after 'altiverb 7 catalina'. In order to further combat malicious applications, Apple introduced the requirement for notarised applications in macOS Catalina, building on the Gatekeeper technology introduced in OS X 10.8 Mountain Lion.

Additionally, any applications signed before June 1st, 2019 do not need to be notarised, so older applications will continue to work without modification. However, there were concerns surrounding newer technologies that Apple was introducing, such as Application Notarisation, QuickTime Player 7, and applications that used QuickTime 7 as an underlying technology.

This had ramifications beyond the immediately obvious. For instance, SoundRadix's 32Lives plug-in adaptor, which allows 32-bit AudioUnit plug-ins to be used in 64-bit hosts such as Logic Pro X, does not work. There were also concerns surrounding newer technologies that Apple was introducing.

Now that a few months have passed and we've had time to live with the new OS for a little while, it's worth reviewing where we stand in reality. At the time of its release, exact details of the limitations incurred by Catalina were not entirely clear: we knew that Catalina would drop support for 32-bit software, rendering older applications such as iWork '09 and Microsoft Office 2011 unusable.

When macOS 10.15 Catalina was first released in October 2019, many audio developers urged caution against prematurely upgrading, insisting that their hardware and software products would not be compatible. With the release of this new OS, it's essential for users to carefully consider the potential implications before making the switch.

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