The European Securities and Markets Authority (ESMA) has published or updated several Questions and Answers related to various financial regulations. The updates cover topics such as prospectus regulation, markets in crypto-assets regulation, and the Undertakings for Collective Investment in Transferable Securities Directive. Specifically, the updates address issues like historical financial information, custody agreements, and commingling clients' crypto-assets. These updates are available in the Questions and Answers section on ESMA's website.