I pinged the product manager, just got this back (and indeed, my list needs to be updated from a newer PDF or better, the read me shown below, sorry). You will need a new Colorimeter or stick with an older OS as outlined below:
We had to drop support for the “teardrop” shaped i1DisplayV1 and V2 (and NEC variants) in 2018 because we had to move to 64 bit apps and X-Rite doesn’t have a 64 bit SDK. We keep a “legacy” version for those who need support on old macOS versions.
Complete details and list of sensors are in the README. Here are the details:
Version 1.1.41.00 – build 200508 – May 8, 2020
Release Notes
New 64-bit Build
SpectraView is now a 64-bit application. Due to the requirements for 64-bit applications, the minimum supported macOS version is now 10.12 and support for the X-Rite i1Display V2 sensor has been discontinued. A legacy 32-bit build of this application's version 1.1.39 is available if support for Mac OS X 10.7 - 10.11 or the X-Rite i1Display V2 sensor is required.
Supported Color Sensors
SpectraView II supports the following color sensors:
Datacolor Spyder3
Datacolor Spyder4
Datacolor Spyder5
Datacolor SpyderX
NEC MDSVSENSOR3
NEC SpectraSensor Pro
Photo Research PR-655, PR-670, PR-680, PR-730 and PR-740 Spectroradiometers.
X-Rite ColorMunki
X-Rite i1Display Pro / X-Rite i1Display Pro Plus
X-Rite i1Monitor
X-Rite i1Pro
X-Rite i1Pro2
X-Rite i1Pro3 / X-Rite i1Pro3 Plus
X-Rite i1Studio
Note:
The X-Rite ColorMunki Display device introduced in mid-2011 and sold as the "ColorMunki Create" bundle is not supported.
The X-Rite i1Display Studio device introduced in 2019 is not supported.
Revision History
V1.1.38: August 15 2018
Added support for P243W, EA271Q, EA271U and EA241WU.
Discontinued support for the Datacolor Spyder2 color sensor.
Discontinued support for the X-Rite i1Display V1 and V2 color sensors.
Added support for the X-Rite i1Studio color sensor.