What’s New in 2025–26

Secure Browser

LEAs using devices with ChromeOS will require a new secure browser application, the version associated with the SecureTest Progressive Web Application, beginning with the release of ChromeOS version 139. Devices that remain on ChromeOS version 138 can continue to use the previously available version of the secure browser.
Because iPadOS now uses Assessment Mode by default, it is no longer necessary to configure this mode specifically for use with the secure browser.
The updated secure browser versions for the 2025–26 CAASPP and ELPAC administrations are presented in table 1. These are the only secure browser versions supported for testing.

Table 1. Supported Secure Browser Versions for 2025–26
Operating System	Device Type	Secure Browser Version
Apple iPadOS	Mobile	8
Chrome	Mobile	SecureTest (Progressive Web Application)
macOS	Desktop or Laptop	18
Windows	Desktop or Laptop	18
Linux	Desktop or Laptop	18

Refer to Supported Operating Systems for Student Testing for complete information about operating system versions supported for the 2025–26 CAASPP and ELPAC administrations.

The additions to the list of supported operating system versions for the 2025–26 CAASPP and ELPAC administrations are presented in table 2.

Table 2. Supported Operating System Version Additions for 2025–26
Operating System	Device Type	Supported Operating System Additions
Apple iPadOS	Mobile	iPadOS 17.7 iPadOS 18.3 iPadOS 19 (upon release and acceptance)
Chrome	Mobile	Version 138+ (stable) Version 138+ (LTS) Version 138+ (LTC)
Linux	Desktop or Laptop	Fedora 40 Fedora 41 Ubuntu 22 (LTS) Ubuntu 24 (LTS)
macOS	Desktop or Laptop	Version 16 (upon release and acceptance)
Windows	Desktop or Laptop	Windows 10 builds and sub-versions released in May 2025 and later (version 22H2) Windows 11 builds and sub-versions released in May 2025 and later (version 22H2) Windows 12 (upon release and acceptance)

The deletions from the list of supported operating system versions for the 2025–26 CAASPP and ELPAC administrations are presented in table 3.

Table 3. Supported Operating System Version Deletions for 2025–26
Operating System	Device Type	Supported Operating System Deletions
Apple iPadOS	Mobile	iPadOS 16
Chrome	Mobile	LTC ChromeOS below version 138 LTS ChromeOS below version 137 Stable below ChromeOS version 137
Linux (64-bit or 32‑bit)	Desktop or Laptop	Fedora 39 and below Ubuntu 20 and below
macOS	Desktop or Laptop	macOS 12 “Monterey”
Windows	Desktop or Laptop	All Windows 10 and 11 builds and sub-versions prior to May 2025

Refer to Supported Web Browsers for Online Systems Associated with Testing for complete information about internet browsers supported in associated systems for the 2025–26 CAASPP and ELPAC administrations.