What Are Your Brexit Transition Period Rights?

On January 31st 2020, the UK will leave the EU and enter the Brexit transition period. This retains our access to the single market for a proposed eleven months. But what rights will we all retain during this time, and what will be lost when the transition period ends?
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Transition Period: https://ec.europa.eu/commission/sites/beta-political/files/2018-11-26_qa_citizens_rights_en_0.pdf