Hg update should prefer heads without bookmarks

[cowwoc]

On 31/05/2015 2:47 PM, Matt Mackall wrote:
> On Fri, 2015-05-29 at 13:09 -0700, Nathan Goldbaum wrote:
>> The last commit was in 2012, and the last substantial changes were in 2011:
>>
>> https://bitbucket.org/bos/hgbook/commits/all
> And I don't think those are even live on the website. As far as I can
> tell, the last changeset deployed was 3a8e7 in 2009.
>
> Quite a number of things have changed since then. As I mentioned, the
> book is current as of Mercurial 1.2. So while it's still an ok
> introduction to the basic concepts, it's by no means authoritative on
> much of anything anymore.

Matt,

Is there an authoritative source that also acts as an introduction to 
Mercurial? The command-line help is useful as a reference, but is not a 
good introduction for new users.

Gili