Law in accounting course

Lucy, Hannah and Zach are active partners in a firm selling electrical appliances. In December 2019 Zach retired from the firm and sent out notices of his retirement to all their regular clients. He also put an advertisment in the local newspapers about his retirement. The remaining partners continued the business under the same firm name. In January 2020, the firm got a RM40,000 loan from their regular bank. When the firm failed to pay back the money, the bank sued the firm together with Zach. Is Zach also liable for the debt? Answer must be according tu Partnership Act 1961 of Malaysian Law