LLP partner appointments, cessations and changes require Form No.4 filing with identity, consent, proof, and digital signature. LLP Form No. 4 requires notice of appointment, cessation and changes in name, address or designation of individual and corporate partners and designated partners, including consent to act and a designated partner's declaration as to beneficial interest; it collects identity numbers (DPIN/PAN/passport/corporate IDs), event dates, addresses, and prior particulars, and mandates supporting attachments (consent, evidence of cessation, corporate resolutions) and digital signature by an authorised designated partner, with optional professional certification of attachments.