A filter should show mods that are new, and those that are compatible with my version for the first time.

[Qazerowl]

I want to look at all of the mods available for my version of KSP that were not available last time I refreshed the package list. I think this should replace the new in repository filter. When I use the new in repository filter, it's because I've already looked through all the mods in the compatible list, and after refreshing, I see that there are more mods in the compatible list.

Knowing whether a mod has ever been in the repo or not isn't very useful, since what really matters is if it's updated for my version of KSP.

[Qazerowl]

Or, to put it another way: I want to somehow see the changes in the "compatible" list since the last time I refreshed.

[HebaruSan]

This is where we populate the "New in repository" filter:

CKAN/GUI/MainModList.cs

Lines 156 to 172 in 37c8477

	var old_modules = new HashSet<GUIMod>(mainModList.Modules);
	if (repo_updated)
	{
	foreach (var gui_mod in gui_mods.Where(m => !old_modules.Contains(m)))
	{
	gui_mod.IsNew = true;
	}
	}
	else
	{
	//Copy the new mod flag from the old list.
	var old_new_mods = new HashSet<GUIMod>(old_modules.Where(m => m.IsNew));
	foreach (var gui_mod in gui_mods.Where(m => old_new_mods.Contains(m)))
	{
	gui_mod.IsNew = true;
	}
	}

Adding updates would involve checking compatibility there rather than just existence of the module.