- Document KF6TextTemplate availability in prebuilt Docker image - Document Poppler-Qt6 unavailability in Ubuntu 26.04 repositories - Confirm test exclusions are correct for release scope - Add package installation verification commands and results Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Entire-Checkpoint: 01M4BEHT7X5FXDSQHNZYP876HE