X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=NEWS;h=4a3d378666e9319b5f2c7ecc174db16c85bd0a06;hb=d0aea584697ca17916844a892c3f17a6dd2afb70;hp=0611b786680901972a06b8e6c576fb6d14355744;hpb=446f32183265d59ee79e2859376c598fa24408e0;p=pazpar2-moved-to-github.git

diff --git a/NEWS b/NEWS
index 0611b78..4a3d378 100644
--- a/NEWS
+++ b/NEWS
@@ -1,12 +1,14 @@
+--- 1.6.21 2012/09/24
 
 Rank tweak: follow=number will increase mult by number if two terms
 occur next to each other; number-1 if they are one term apart , .. 0
 if they are number a part (all in order). Default is 0 (following
 terms has no effect).
 
-Rank tweak: lead=number will increase mult by number if term is first
-term in field, number-1 if second, ... 0 if term is at offset
-number of more. Default value is 0 (position irrelevant).
+Rank tweak: lead=k will divide mult by 1 + log2(1+k*l) where k is
+value given by lead and l is length from beginning of field where
+term occurs (l=0 for first term, l=1 for second term, ..). Default
+value of k is 0.0.
 
 Rank tweak: length=strategy. length="linear" if mult is to be divided
 by length (existing, default behavior), length="log" if mult is to be