📱iOS 15.2 - 19C57 stopped being signed for 4 devices
iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini and iPhone 13

📱iOS 15.3 - 19K547 has been released for 2 devices
Apple TV 4 (2015) and HomePod mini

📱iOS 12.2.1 - 21D62 has been released for 9 devices
MacBook Air (M1, Late 2020), MacBook Pro (M1, Late 2020), MacBook Pro (M1 Pro, 16-inch, 2021), MacBook Pro (M1 Max, 16-inch, 2021), MacBook Pro (M1 Pro, 14-inch, 2021), MacBook Pro (M1 Max, 14-inch, 2021), Mac Mini (M1, Late 2020), iMac 24-inch (M1, Two Ports, 2021) and iMac 24-inch (M1, Four Ports, 2021)

📱iOS 12.2 - 21D49 has been released for 9 devices
MacBook Air (M1, Late 2020), MacBook Pro (M1, Late 2020), MacBook Pro (M1 Pro, 16-inch, 2021), MacBook Pro (M1 Max, 16-inch, 2021), MacBook Pro (M1 Pro, 14-inch, 2021), MacBook Pro (M1 Max, 14-inch, 2021), Mac Mini (M1, Late 2020), iMac 24-inch (M1, Two Ports, 2021) and iMac 24-inch (M1, Four Ports, 2021)

📱iOS 6.2 - 19P744 has been released for 16 devices
iBridge2,1, iBridge2,10, iBridge2,12, iBridge2,14, iBridge2,15, iBridge2,16, iBridge2,19, iBridge2,20, iBridge2,21, iBridge2,22, iBridge2,3, iBridge2,4, iBridge2,5, iBridge2,6, iBridge2,7 and iBridge2,8

📱iOS 15.3.1 - 19D52 has been released for 80 devices
iPad Mini 5 (WiFi), iPad Mini 5 (Cellular), iPad Air 3 (WiFi), iPad Air 3 (Cellular), iPad 8 (WiFi), iPad 8 (Cellular), iPad 9 (WiFi), iPad 9 (Cellular), iPad Air 4 (WiFi), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Air 4 (Cellular), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Mini 6 (WiFi), iPad Mini 6 (Cellular), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad 5 (WiFi), iPad 5 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPad Pro 2 (12.9-inch, WiFi), iPad 7 (WiFi), iPad 7 (Cellular), iPad Pro 2 (12.9-inch, Cellular), iPad Pro (10.5-inch, WiFi), iPad Pro (10.5-inch, Cellular), iPad 6 (WiFi), iPad 6 (Cellular), iPad Pro 3 (11-inch, WiFi), iPad Pro 4 (11-inch, Cellular), iPad Pro 4 (12.9-inch, WiFi), iPad Pro 4 (12.9-inch, Cellular), iPad Pro 3 (11-inch, WiFi, 1TB Model), iPad Pro 3 (11-inch, Cellular), iPad Pro 3 (11-inch, Cellular, 1TB Model), iPad Pro 3 (12.9-inch, WiFi), iPad Pro 3 (12.9-inch, WiFi, 1TB Model), iPad Pro 3 (12.9-inch, Cellular), iPad Pro 3 (12.9-inch, Cellular, 1TB Model), iPad Pro 4 (11-inch, WiFi), iPhone 8 (Global), iPhone 8 Plus (Global), iPhone X (Global), iPhone 8 (GSM), iPhone 8 Plus (GSM), iPhone X (GSM), iPhone XS, iPhone XS Max (China), iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2020), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 7

📱iOS 15.3 - 19D50 has been released for 80 devices
iPad Mini 5 (WiFi), iPad Mini 5 (Cellular), iPad Air 3 (WiFi), iPad Air 3 (Cellular), iPad 8 (WiFi), iPad 8 (Cellular), iPad 9 (WiFi), iPad 9 (Cellular), iPad Air 4 (WiFi), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Air 4 (Cellular), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Mini 6 (WiFi), iPad Mini 6 (Cellular), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad 5 (WiFi), iPad 5 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPad Pro 2 (12.9-inch, WiFi), iPad 7 (WiFi), iPad 7 (Cellular), iPad Pro 2 (12.9-inch, Cellular), iPad Pro (10.5-inch, WiFi), iPad Pro (10.5-inch, Cellular), iPad 6 (WiFi), iPad 6 (Cellular), iPad Pro 3 (11-inch, WiFi), iPad Pro 4 (11-inch, Cellular), iPad Pro 4 (12.9-inch, WiFi), iPad Pro 4 (12.9-inch, Cellular), iPad Pro 3 (11-inch, WiFi, 1TB Model), iPad Pro 3 (11-inch, Cellular), iPad Pro 3 (11-inch, Cellular, 1TB Model), iPad Pro 3 (12.9-inch, WiFi), iPad Pro 3 (12.9-inch, WiFi, 1TB Model), iPad Pro 3 (12.9-inch, Cellular), iPad Pro 3 (12.9-inch, Cellular, 1TB Model), iPad Pro 4 (11-inch, WiFi), iPhone 8 (Global), iPhone 8 Plus (Global), iPhone X (Global), iPhone 8 (GSM), iPhone 8 Plus (GSM), iPhone X (GSM), iPhone XS, iPhone XS Max (China), iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2020), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 7

📱iOS 15.2 - 19K53 stopped being signed for 1 device
Apple TV 4 (2015)

📱iOS 15.2 - 19K52 stopped being signed for 1 device
HomePod mini

📱iOS 6.1 - 19P647 stopped being signed for 16 devices
iBridge2,1, iBridge2,10, iBridge2,12, iBridge2,14, iBridge2,15, iBridge2,16, iBridge2,19, iBridge2,20, iBridge2,21, iBridge2,22, iBridge2,3, iBridge2,4, iBridge2,5, iBridge2,6, iBridge2,7 and iBridge2,8

📱iOS 15.2.1 - 19C63 stopped being signed for 80 devices
iPad Mini 5 (WiFi), iPad Mini 5 (Cellular), iPad Air 3 (WiFi), iPad Air 3 (Cellular), iPad 8 (WiFi), iPad 8 (Cellular), iPad 9 (WiFi), iPad 9 (Cellular), iPad Air 4 (WiFi), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Air 4 (Cellular), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Mini 6 (WiFi), iPad Mini 6 (Cellular), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad 5 (WiFi), iPad 5 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPad Pro 2 (12.9-inch, WiFi), iPad 7 (WiFi), iPad 7 (Cellular), iPad Pro 2 (12.9-inch, Cellular), iPad Pro (10.5-inch, WiFi), iPad Pro (10.5-inch, Cellular), iPad 6 (WiFi), iPad 6 (Cellular), iPad Pro 3 (11-inch, WiFi), iPad Pro 4 (11-inch, Cellular), iPad Pro 4 (12.9-inch, WiFi), iPad Pro 4 (12.9-inch, Cellular), iPad Pro 3 (11-inch, WiFi, 1TB Model), iPad Pro 3 (11-inch, Cellular), iPad Pro 3 (11-inch, Cellular, 1TB Model), iPad Pro 3 (12.9-inch, WiFi), iPad Pro 3 (12.9-inch, WiFi, 1TB Model), iPad Pro 3 (12.9-inch, Cellular), iPad Pro 3 (12.9-inch, Cellular, 1TB Model), iPad Pro 4 (11-inch, WiFi), iPhone 8 (Global), iPhone 8 Plus (Global), iPhone X (Global), iPhone 8 (GSM), iPhone 8 Plus (GSM), iPhone X (GSM), iPhone XS, iPhone XS Max (China), iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2020), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 7

📱iOS 8.4.7 - 12H1006 has been released for 2 devices
Apple TV 3 and Apple TV 3 (2013)

📱iOS 15.4 - 19L440 has been released for 2 devices
Apple TV 4 (2015) and HomePod mini

📱iOS 15.4 - 19E241 has been released for 83 devices
iPad Mini 5 (WiFi), iPad Mini 5 (Cellular), iPad Air 3 (WiFi), iPad Air 3 (Cellular), iPad 8 (WiFi), iPad 8 (Cellular), iPad 9 (WiFi), iPad 9 (Cellular), iPad Air 4 (WiFi), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Air (5th generation), iPad Air (5th generation), iPad Air 4 (Cellular), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation), iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation), iPad Mini 6 (WiFi), iPad Mini 6 (Cellular), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad 5 (WiFi), iPad 5 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPad Pro 2 (12.9-inch, WiFi), iPad 7 (WiFi), iPad 7 (Cellular), iPad Pro 2 (12.9-inch, Cellular), iPad Pro (10.5-inch, WiFi), iPad Pro (10.5-inch, Cellular), iPad 6 (WiFi), iPad 6 (Cellular), iPad Pro 3 (11-inch, WiFi), iPad Pro 4 (11-inch, Cellular), iPad Pro 4 (12.9-inch, WiFi), iPad Pro 4 (12.9-inch, Cellular), iPad Pro 3 (11-inch, WiFi, 1TB Model), iPad Pro 3 (11-inch, Cellular), iPad Pro 3 (11-inch, Cellular, 1TB Model), iPad Pro 3 (12.9-inch, WiFi), iPad Pro 3 (12.9-inch, WiFi, 1TB Model), iPad Pro 3 (12.9-inch, Cellular), iPad Pro 3 (12.9-inch, Cellular, 1TB Model), iPad Pro 4 (11-inch, WiFi), iPhone 8 (Global), iPhone 8 Plus (Global), iPhone X (Global), iPhone 8 (GSM), iPhone 8 Plus (GSM), iPhone X (GSM), iPhone XS, iPhone XS Max (China), iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2020), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone SE (3rd generation), iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 7

📱iOS 12.3 - 21E230 has been released for 11 devices
Mac Studio, Mac Studio, MacBook Air (M1, Late 2020), MacBook Pro (M1, Late 2020), MacBook Pro (M1 Pro, 16-inch, 2021), MacBook Pro (M1 Max, 16-inch, 2021), MacBook Pro (M1 Pro, 14-inch, 2021), MacBook Pro (M1 Max, 14-inch, 2021), Mac Mini (M1, Late 2020), iMac 24-inch (M1, Two Ports, 2021) and iMac 24-inch (M1, Four Ports, 2021)

📱iOS 6.4 - 19P4242 has been released for 16 devices
iBridge2,1, iBridge2,10, iBridge2,12, iBridge2,14, iBridge2,15, iBridge2,16, iBridge2,19, iBridge2,20, iBridge2,21, iBridge2,22, iBridge2,3, iBridge2,4, iBridge2,5, iBridge2,6, iBridge2,7 and iBridge2,8

📱iOS 6.2 - 19P744 stopped being signed for 12 devices
iBridge2,1, iBridge2,10, iBridge2,12, iBridge2,14, iBridge2,15, iBridge2,16, iBridge2,19, iBridge2,20, iBridge2,21, iBridge2,3, iBridge2,5 and iBridge2,6

📱iOS 15.3 - 19K547 stopped being signed for 2 devices
Apple TV 4 (2015) and HomePod mini

📱iOS 15.3.1 - 19D52 stopped being signed for 2 devices
iPhone 11 and iPhone 7 (Global)

📱iOS 6.2 - 19P744 stopped being signed for 1 device
iBridge2,22