I know this has been out there in various requests, but I think it would really be nice to have an updated pdf of the reference guide.  The pdf guide is still from January 2015, but the current Sonar version has made the old guide rather obsolete.  I know that help (and the user guide) is always available online, but I feel sure there are others like me who would like to have the reference guide available to carry on a mobile device to peruse at our leisure withiut having to access the online version. Seems like a small task, but maybe it requires more than I think.

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There are robots that will convert chm to pdf, and in any case the human editing that would bring the pdf in line with the online help should be affordable. An improved index would take some work, but a full text search of the pdf is pretty quick if you have some idea what you are looking for. The online help index is pitiful, so unless you are hoping that the context sensitive help from within the program will actually take you where you want to go, you are much better off with a pdf. 

I agree with this request.  I have a copy of the reference guide on my Fire that I browse and sometimes even study during flights and travel downtime.  With all the new features since it was published, many of which I haven't had an opportunity to experiment with, it would be nice.

+1, updated docs should be a part of the monthly update!

I tend to use the documentation on the web site in any case which is updated. By the looks of it the help file on this site is written using webworks software which does seem to have an option to provide help as a pdf or e-pub book. Perhaps there could be a link to the complete help file as a single (albeit huge) pdf document on this site?

+1 what pwalpwal said!

+1