(A customer called this morning and chastised me for not updating the Start Page and was tired of looking at the last article for the past 6 weeks.  Thanks for the kick, Rut!)
 
With the most recent release you can now include a table of the tax deductible contributions made by each donor in your year-end tax letters:

 
The name of this new merge field is:  «Tax Deductible Contribution Table Within Date Range».  It's found here in the drop-down list:
 
 
 
 
If you accept pledges where the payments are scheduled over a period of time, you may now include a table of their pledge status:
 

 
The new field is available when writing letters from the Pledges list.  The new field is named: «Pledge Detail Table»  
It's found in the drop down list:
  
