My Safari doesn’t work properly. Is it not possible to upgrade anymore?

Safari is an element of your installed version of iPadOS - and cannot be independently updated. As such, if you have an older model of iPad that cannot be updated to a more recent version of iOS/iPadOS, you can only use the associated version of Safari.

At the time of writing, iPadOS 18.7 and iPadOS 26 are current.

For information, here is a list of the highest version of iOS supported by the older models of iPad (for simplicity - “generations” are shortened to a number) that are restricted in their ability to be updated:

32-bit devices (obsolete)

iPad1 - iOS 5.1.1

iPad2, iPad3 and iPad mini1 - iOS 9.3.5 (WiFi Only models), iOS 9.3.6 (WiFi+Cellular)

iPad4 - iOS 10.3.3 (WiFi Only), iOS 10.3.4 (WiFi+Cellular)

64-bit devices

iPad Air1*, iPad mini2 and iPad mini3* - iOS 12.5.7

iPad Air2, iPad mini4 - iPadOS 15.8.5

iPad5, iPad Pro (9.7"/12.9" 1st generation)* - iPadOS 16.7.12

iPad6, iPad Pro (10.5"/12.9" 2nd generation) - iPadOS 17.7.10

iPad7 - iPadOS 18.7

(*) obsolete

Newer models are all able to be updated to the current version - iPadOS 26, or optionally if running iPadOS 18.x to iPadOS 18.7

• iPad Pro 13" (M4)
• iPad Pro 12.9" (3rd generation and later)
• iPad Pro 11" (1st generation and later + M4)
• iPad Air (3rd generation and later + M2/M3)
• iPad (8th generation and later + A16)
• iPad mini (5th generation and later + A17 Pro)