Disable tabbing completely. The user defaults hack isn't sufficient because holding down option causes a new window to open as a tab. Issue 6197

Set SUFeedURL in Info.plist. Sometimes Sparkle doesn't see the user defaults key and then dies because it lacks a URL. The down side of this is that beta users may not pull from the beta track and the experiment bucket will get more than its fair share of requests on the stable track. But it beats the heck out of crashing for no reason.

Analysis here:

https://github.com/sparkle-project/Sparkle/issues/1139

Reset user scroll when the buffer is cleared. Change the convenience accessor for verticalScroller to ptyVerticalScroller since in xcode 9 you can no longer override a superclass method and change the return type to a subclass of the method's original return type. Issue 6174

Add iTermCallWithTimeout since 10.13 has a lot of system calls that never return. Prevent proc_pidinfo for hanging for more than half a second.

Update colorpicker to use latest project settings and warnings. Fix a bug where the eyedropper window is never hidden on 10.13. Issue 6171

When the autocomplete window opens and then discovers it has no results and closes it causes a nonpinned hotkey window to close because the window gets closed before becoming key. That confuses the very complex logic for autohiding. To make the smallest possible change, I do a dispatch async on the close to order it properly. Issue 6169.

Prevent statfs from hanging the app for more than half a second in the face of broken network filesystems. Issue 6110

Don't set desiredRows_/desiredColumns_ when adding a tab to an existing window. It should stay at the value set by the first tab. Issue 6141.

Fix warnings introduced in Xcode 9

Fix vertical alignment of 'Paste' button in advanced paste.

actually allows this if screens don't have their own spaces. Issue 6125

This fixes both deadkeys alone (e.g., ` on a DE keyboard) or deadkey+key (opt+` on DE to give '). I tested migration from 3.0 and it seems fine.

If no local authentication policy can succeed, then authenticate the password manager. This is the previous behavior from 3.1.1. Apparently OS X 10.11 has the APIs but can't authenticate with them. Issue 6113

Disable High Sierra's system tabs, which you can get when System Prefs > Docks > Prefer tabs when opening documents is set to Always. Issue 6096