苹果向开发者发布了iOS8 Beta5测试版更新，苹果的这次更新为iOS8带来了一些修复和优化，并没有加入新功能。不过iOS8的运行稳定性进一步提升，越来越像个能用的正式系统了。

推荐阅读：《苹果iOS8 Beta5更新内容汇总》

苹果iOS8 Beta5测试版官方下载地址如下：

iphone5s

• iphone 5s（model A1453，A1533）CDMA

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5s_model_a1453_a1533__12a4345d.zip

• iphone 5s（model A1457，A1518，A1526，A1528，A1530）GSM

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5s_model_a1457_a1518_a1528_a1530__12a4345d.zip

iphone5c

• iphone 5c（model A1456，A1532）GSM

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5c_model_a1456_a1532__12a4345d.zip

• iphone 5c（model A1507，A1516，A1526，A1529）CDMA

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5c_model_a1507_a1516_a1526_a1529__12a4345d.zip

iphone5

•iphone 5（model A1428）GSM

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5_model_a1428__12a4345d.zip

• iphone 5（model A1429）CDMA

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_5_model_a1429__12a4345d.zip

iphone 4s

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__iphone_4s__12a4345d.zip

iPod touch 5

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__ipod_touch_5th_generation__12a4345d.zip

iPad Air

iPad Air（model A1474 WiFi）

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__ipad_air_model_a1474__12a4345d.zip

iPad Air（model A1475 3G版）

http://adcdownload.apple.com//ios/ios_8_beta_5_n4ecjq/ios_8_beta_5__ipad_mini_model_a1490__12a4345d.zip