altstoreio / altstoreio/AltStore

After updating to iOS 26 can’t install altstore!

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#1,656 5 comments 1 reaction 0 assignees View on GitHub

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Dominant language
Swift
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Description

I updated my iPad and iPhone to iOS 26 and altstore+sidestore stopped updating (refresh)and and deleted altstore and tried to install it and I couldn’t install AltStore! I got this error on my computer ! Failed to verify code signature of
/var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.Ol
AoL8/extracted/AltStore.app: 0x8008015 (A valid provisioning profile for this executable was not found.)

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is named. Start by reproducing the installation failure on iOS 26 and inspect the reported provisioning-profile and code-signature error. Done means AltStore installs and refreshes successfully on the affected iPhone and iPad devices.

Written by the indexing model from the issue text.

Assessment

Tech stack
ios, swift
Domain
mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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