changelog/10.9.0_2021-12-20/39349
Enhancement: Add quality setting for JP(E)G preview images
A new config setting `previewJPEGImageDisplayQuality` has been introduced
with which the quality of generated JP(E)G previews can be determined.
https://github.com/owncloud/core/pull/39349
https://github.com/owncloud/enterprise/issues/4702