c4e1ea7b_se_CvsTagDiff_task___Java_Tips__Description
[Attribute] compression [Required] No. Defaults to no compression. if passed true, level 3 compression is assumed. [Description] 
true, false, or the number 1-9 (corresponding to possible values for CVS -z# argument). Any other value is treated as false
How to use CvsTagDiff task - Java Tips