Due diligence by debenture trustee: mandatory certificates and stock exchange disclosure; issuers must fix record date for payments. The amendment mandates a record date fixed fifteen days before payment or corporate action dates and replaces due diligence provisions to require debenture trustees to furnish specified due diligence certificates at the draft-offer stage and at filing of the listing application, with distinct formats for secured and unsecured debt. Stock exchanges must disclose offer documents, placement memoranda and the debenture trustee's certificates. Schedule changes permit listed issuers to use a web-link/QR for audited financials subject to certified comparative disclosures and require trustee confirmations on security, covenants, debenture trust deed execution and charge registration.