Auto-night mode doesn't switch back to light theme
Auto-night mode does not work as intended when set to either system default, or adaptive, or schduled by time, or scheduled by sunrise/sunset time. In both cases Telegram switch to dark mode, following…
"Unpin all" only applies to messages created after the group upgrade.
Finally, pinning one message created after the upgrade of the group doesn't update the icon, i.e. I still see a cross even with several pinned messages (as long as there is only one pinned message created after the group change).