Appendix A: Operating System Support Plan for the 2021–22 Test Delivery System

A supported operating system is one for which CAI provides updates to the secure browser for that operating system. CAI provides such updates as the supported operating systems are updated or as bugs in the secure browser are detected and fixed.

The support plan describes CAI’s plan for supporting operating systems during the upcoming test administration and following years. This plan helps LEAs and schools manage operating system deployments based on the support timelines.

There are two parts to the support plan: the Timing of Secure Browser Updates subsection and table 1 through table 5, which are the supported operating systems tables.

Timing of Secure Browser Updates

CAI will support major and minor version upgrades for Windows, macOS, Linux, iOS or iPadOS, and Chrome OS upon the completion of internal testing following their release. CAI may provide secure browser updates for new major and minor version upgrades of Windows, macOS, Linux, iOS or iPadOS, and Chrome OS, if necessary.

A “major version upgrade” of an operating system is usually denoted by an increase in the version designation’s whole number. For example, the upgrade from Windows 8 to Windows 10 was a major version upgrade.

A “minor version upgrade” is usually denoted by an increase in a number after a decimal point. For example, the upgrade from macOS 10.13 to 10.14 was a minor version upgrade. For minor version upgrades to iOS or iPadOS and Chrome OS operating systems, CAI will provide mobile secure browser updates to ensure compatibility.

Support Plan for Operating Systems

Table 1 through table 5 list the operating systems and the anticipated end-of-support dates.

Windows

Table 1. Supported Operating Systems—Windows

Supported Operating System Release Date Anticipated End-of-Support Date
8.1 (Professional and Enterprise) October 2013 End of 2022–23 school year
10, 10 in S mode (Educational, Professional, and Enterprise) (Versions 1902–20H2; 21H1 upon release and acceptance) July 2015, rolling None currently
Server 2012 R2 October 2013 End of 2022–23 school year
Server 2016 R2 October 2016 End of 2025–26 school year

Mac

Table 2. Supported Operating Systems—macOS (Intel)

Supported Operating System Release Date Anticipated End-of-Support Date
10.13 September 2017 End of 2021–22 school year
10.14 September 2018 End of 2021–22 school year
10.15 October 2019 End of 2022–23 school year
11 November 2020 End of 2023–24 school year
12 Pending Acceptance End of 2024–25 school year

Linux

Table 3. Supported Operating Systems—Linux

Supported Operating System Release Date Anticipated End-of-Support Date
Fedora 32 LTS (Gnome) April 2020 End of 2021–22 school year
Fedora 33 LTS (Gnome) October 2020 End of 2021–22 school year
Ubuntu 18.04 LTS (Gnome) April 2018 End of 2022–23 school year
Ubuntu 20.04 LTS (Gnome) April 2020 End of 2023–24 school year

Apple Mobile

Table 4. Supported Operating Systems—iPadOS

Supported Operating System Release Date Anticipated End-of-Support Date
13.7 September 2019; rolling CAI supports the three most recent major releases of iOS or iPadOS.
14.5 September 2019; rolling CAI supports the three most recent major releases of iOS or iPadOS.
15 September 2019; rolling CAI supports the three most recent major releases of iOS or iPadOS.

Chrome

Table 5. Supported Operating Systems—Chrome OS

Supported Operating System Release Date Anticipated End-of-Support Date
91 and above August 2020; rolling For any given school year, CAI supports the version of Chrome OS available during the summer months and all subsequent versions. For example, if Chrome OS version 91 is released in June, it and all versions of Chrome after it will be supported until July of the following year.