Implement Search Across More Than One Book
Since we are breaking extensions off into their own books there is lots of value of allowing users to search through multiple books.
For example, if you are an end user interested in discounts you may not know to go to the book on CiviDiscount. You are going to most likely go to the CiviCRM Documentation and click User Guide not knowing where else to go.
I propose we add a search that allows searches of all of the latest books.
I do not think that we should allow searches over all the branches. It will be too confusing. I do think we need to let people select the language like in the graphic above.