[BUG] iOS 18 iPhone 15 Pro HEIC cannot be viewed or previewed

[wama3366]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Since I updated my iPhone 15 Pro to iOS 18, the uploaded images to Nextcloud cannot be opened and previews cannot be generated. The photos are in the HEIC format and they used to work normally before the update. This applied to the Web GUI and the iOS app.
I cannot find any information whether iOS 18 has changed anything in the HEIC format, but the photos still work OK on Windows and in Google Photos. They're only messed up in Nextcloud.

Expected Behavior

Should be able to view HEIC photos and have previews generated and displayed.

Steps To Reproduce

With an iPhone 15 Pro updated to iOS 18, take a photo in HEIC format and upload to Nextcloud. The image cannot be viewed in Nextcloud but can be downloaded and viewed on Windows.

Environment

- OS: 
iOS 18
- How docker service was installed:
Installed from Unraid's apps on an Unraid server.

CPU architecture

x86-64

Docker creation

Installed and configured on an Unraid server using Unraid's apps.

Container logs

No errors or log entries regarding the issue

[github-actions]

Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.

[aptalca]

https://github.com/linuxserver/docker-nextcloud?tab=readme-ov-file#heic-image-previews

[Jams309]

I have noticed that libheif got an update to 1.8.0 to make IOS 18 HEIC images compatible. Looking at the current package_version.txt libheif is at 1.7.6. Can this be updated to 1.8.x to fix the compatibility with IOS 18?

[thespad]

The package is installed from the Alpine repos: https://pkgs.alpinelinux.org/package/v3.20/community/x86_64/libheif

They would need to bump the package to 1.18.x for us to be able to include it.

[bachmma1]

I had the same problem and as a workaround i used the following command inside the container terminal as root:

apk upgrade libheif --repository=https://dl-cdn.alpinelinux.org/alpine/edge/community

This upgrades the package libheif to 1.18.2 Alpine Linux Edge Package.
This works until you upgrade the container through a new image, as the upgrade resets the package to the image-default.

Just for completeness: strukturag/libheif#1190

[tuobraun]

I had the same problem and as a workaround i used the following command inside the container terminal as root:

apk upgrade libheif --repository=https://dl-cdn.alpinelinux.org/alpine/edge/community

Thank you very much for your help! It worked out!

[wama3366]

I had the same problem and as a workaround i used the following command inside the container terminal as root:

apk upgrade libheif --repository=https://dl-cdn.alpinelinux.org/alpine/edge/community

Oh thank you very much... that worked beautifully.