The "What's New" note for 1.4.2 shown above is a bit misleading.
Official release notes indicate:
1.4.2
- Fix Menu not updating on Ubuntu 12.04
- Fix performance problem when syncing a lot of files on Linux

So for Mac users the 1.4.2 update is probably not critical and why it hasn't been pushed / auto-updated from 1.4.1.

Version 1.20 is a "stable release" which is being pushed to Dropbox users.

Essential application for seamless sync'ing of files between multiple computers (I.E. notebook & desktop) and iPhone. Can't live without it.

I've using Transmit for perhaps 10 years. Version 4 is the best yet. Transmit is one of my favorite essential Mac programs.

People who are complaining about the "minor" appearance changes are missing the point.

What part of "up to 25X faster" don't you understand. This is huge when making big changes to a web site when you may be uploading hundreds or thousands of files. Ridiculously faster loading files to iDisk via webdav than Apple's finder implementation.

The "Transmit Disk Feature" alone is worth the upgrade price. This allows your FTP location to mount as a standard folder in the finder. Drag and drop any file in the finder to this folder and - voila - it's uploaded. Transmit doesn't even need to be running. Also, any program can now read and write files via this method to the ftp site.

Update installation went smoothly. Parallels Tools updated Win XP SP3 with no difficulties.

FYI Apparently Parallels does not provide a direct download link for the latest update. You'll need to log into your Parallels account and they will email you a link to your download. They'll send you a trial key but if you have a permanent license key - it isn't needed.

Cookie Dog has not been updated in a while and seems to have a problem parsing certain cookies. This can result in a corrupted cookie file. (Safari 3 & 4). Safari then creates a new cookie file.

Suggest looking at Cocoa Cookie which seems to work fine (Safari only) and allows locking and editing cookies.