What does it mean for China Construction Bank to modify the credit card collection agreement and the authorization letter of personal sensitive information?

It means that these two documents have been revised and improved.

China Construction Bank has revised the Credit Card Collection Agreement and the Power of Attorney for Personal Sensitive Information, which means that these two documents have been revised and improved. However, these amendments and improvements will not have a substantial impact on the rights and interests of cardholders. This means that the rights and interests of cardholders have been protected and maintained in the revised document. This revision may be due to the requirements of laws and regulations, or it may be to improve service quality and safety. Cardholders still enjoy their original rights and interests, such as credit limit, repayment method, fee structure, etc. The revised document may further clarify and protect the rights and interests of cardholders.