GNU Arm Embedded Toolchain "validated"

The download page of the toolchain states that it contains validated packages. Is there some official documentation or information what that exactly means?

What is validated and how is it validated?

https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm

"The GNU Arm Embedded toolchain contains integrated and validated packages featuring the GCC compiler, libraries, and other tools necessary for bare-metal software development."

More questions in this forum