You need to update your iPad:
Settings > General > Software Update
You make no mention of your iPad model - but with iPadOS 26.x installed, your iPad is capable of update to the most recent version of iPadOS. At the time of writing, for the following models, iPadOS 26.7.1 is current:
- iPad8
- iPad Air3
- iPad mini5
- iPad Pro 12.9" (3rd generation)
- iPad Pro 11" (1st generation)
Newer iPad models are all able to be updated to iPadOS 26.7.1 - or optionally upgrade to iPadOS 27.0.1
- iPad Pro 13" (M4/M5)
- iPad Pro 12.9" (4th generation and later)
- iPad Pro 11" (2nd generation and later + M4/M5)
- iPad Air (4th generation and later + M2/M3/M4)
- iPad (9th generation and later + A16)
- iPad mini (6th generation and later + A17 Pro)