发现有几款老型号的手机，微信版本都比较新，如8.0.16 或8.0.20，但是 Chrome/55.0.2883.91非常的低，小程序访问时setData执行异常页面白屏，微信升级时chrome内核版本为啥没有升级？

Mozilla/5.0 (Linux; Android 7.1.2; vivo X9L Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 MMWEBID/1301 MicroMessenger/8.0.16.2040(0x2800103B) Process/appbrand4 WeChat/arm64 Weixin NetType/4G Language/zh_CN ABI/arm64 MiniProgramEnv/android

Mozilla/5.0 (Linux; Android 7.1.2; vivo X9 Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 MMWEBID/1779 MicroMessenger/8.0.20.2100(0x28001439) Process/appbrand1 WeChat/arm64 Weixin NetType/WIFI Language/zh_CN ABI/arm64 MiniProgramEnv/android