Specific Trados Studio 2022 version for installation

Hi, I purchased an upgrade from Trados Studio 2021 Freelance Plus to Trados Studio 2022 Freelance Plus but have not installed it yet. The company I work for wants me to install an older version of Studio 2022 (SR1 - 17.1.8.17828) than the currently available one. How can I obtain this specific version? It doesn't appear in my list of Downloads. Thanks in advance for any help.

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