A full list appears below, but some key features include

• Customize control panel: add new panels, add sequences.
• Variable data: using a CSV or TXT file, add simple text, pictures or text blocks to many PDF pages.
• Automation sequences can do "partials" to split jobs, or process parts separately. Results can be merged or left separate.
• N-Up can flow backs from right to left, for easier layout, especially of ad hoc jobs
• Creep can use scaling instead of shift, so that no content is lost
• Page monitor to show info including live size / bleed sizes for open document
• Manual Imposition – performance greatly improved for some large files
• Trim & Shift - add or crop all four edges by a fixed amount.
• Conditions in automation sequences allow more flexibility e.g. different jobs based on page count, page sizes or metadata (such as filename or keywords).
• Import sequences or steps from other sequences or XML files. Filter sequences by name.
• Conditions can issue an error or warning message, and stop a job if there is a problem such as wrong page size or count
• Enfocus Switch users remove the prefix from file name references

New features – full list

Detailed manual pages follow. 

• Customize control panel
• Change the QI+ control panel or create new panels which can be shown separately (different panels for different jobs)
• Rearrange/remove the standard control panel buttons
• Add buttons to run automation sequences
• When a sequence is edited you can automatically add it
• Add buttons to open other panels
• Quick reset of control panel available
  
  
• Variable data – new feature: using a CSV or TXT file, add text or pictures to many PDF pages.
• Work with master pages – making copies of a page and adding text or graphics to each copy; or
• Work without master pages – add text or graphics to entire file.
• Use a CSV or TXT (tab delimited) file from Excel or other sources. (Semi-colon delimited is also available).
• Text is added with the features of Stick On Text and Numbers (choose fonts, position, angle, colour etc.) The CSV file contains only the text to add
• Images are added from a master file; you put all the images you want to add on separate pages. Images are added with features of Stick on PDF Pages (choose position, scale, etc.) The CSV/TXT file contains page numbers only.
• Add text blocks, setting information and fixed text over lines, closing gaps left by blank information etc. for mailing labels and similar production.
• Split and merge (partials) – new feature.
• Apply different commands to different parts of the same file. For example, lay out some sheets as 4 x 2 and some sheets as 2 x 2
• Split by page number, or into equal size pieces
• If splitting by page number, this can do the job of a Shuffle Pages command to prepare the piece, including re-ordering and rotating pages
• New Import sequence feature will help in setting up the different commands for each part
• The results can be combined into one PDF, or left separate (limit of 9 documents in Acrobat, unlimited in Quite Hot Imposing).
• N-Up flow can flow backs from right to left, for easier layout, especially of ad hoc jobs
• By flowing from right to left on the back, you can ensure that the back is a mirror image of the front.
• Creep scaling
• Traditionally Creep has shifted pages to allow for binding; with the scaling option, the contents are scaled onto a different area, so nothing is lost on trimming
• Useful when working with a tightly fitting design
• Quite Imposing Plus menu reorganized
• Shorter menus, because they were too long for some screens and too hard to find individual items
• Match the arrangement of the control panel.
• Page monitor – new feature
• Shows the page sizes for the current document, including bleed, trim etc.
• Can optionally show other info
• Can stay on screen and track whatever document is current
• Can start automatically when a document is first opened in Acrobat
• Trim & Shift - add or crop all four edges by a fixed amount.
• Previously could only add or crop one side at a time, or set to a fixed size
• Manual imposition performance hugely improved for large files (high page count)
• As well as improved performance, in some cases files would grow much larger from manual imposition, and there are major improvements here too.
• This improvement affects Manual Imposition Repeat in all cases
• Other manual impositions of many pages will see improvement in Quite Hot Imposing, and in Quite Imposing Plus when run in “Advanced Batch Mode”.
• Conditions – new feature
• Can be used in automation sequences
• Choose a different automation sequence according to the status of the current document
• Can check page count (e.g. page count less than 10), page size (e.g. no page sizes larger than …), metadata (e.g. file name does not include SPECIAL)
• Can be used to choose different layouts, especially partials, according to page count
• Import sequences – new feature
• Sequence import can be used in Sequence editor, and in setting up new Split/merge (partials) and Conditionals commands.
• Import from another sequence or from XML.
• Can import a copy, and then edit the commands
• Can import as uneditable, and see the sequence or XML used to setup, and use Refresh to update this copy.
• Can convert uneditable to editable.
• Message command – new feature
• Can be used in automation sequences.
• Especially useful with conditions, for example can stop with an error if the page count or page size is not expected.
• Filter sequences by name
• Designed to help users with large numbers of automation sequences
• When a sequence is to be chosen, you can filter so you see only sequences and categories with a matching name.
• Enfocus Switch related feature
• Can automatically strip the special prefix _XXXXX_ from file names