Unfortunately, we no longer support those years, provide update or installers, as CRA wants the last 6 years saved.
You can have access to all tax package in PDF, on this link from CRA website.
If you need information from an older return and don't have the PDF archives saved for your records, you can get info through the Canada Revenue Agency (CRA)'s My Account service, or call them 1-800-959-8281 to request the info.
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