Recently, the company wants to release an APP (which has been launched in major domestic third-party markets) to googleplay, but after uploading APK, it prompts: "The signature certificate used by the APK you uploaded is about to expire. Please sign your APK with a certificate with a longer validity period. " I quickly checked the validity period of the signature and found that it was still far from the validity period. "The validity period starts from March 30, 206519: 39: 08 and ends on April 27, 202519: 39: 08." Google looked it up, and some people said that googleplay requires the validity period to be more than 25 years ... Second, an "international version" version is issued separately, but it is not clear whether to keep the same package name as the original version (considering the signature authentication such as Alipay).