Mention inode cache in NEWS

diff --git a/doc/NEWS.adoc b/doc/NEWS.adoc
index 7b289aaa6bbf669a2a48c4123ef8958441e4d4b6..af51928a55974e7f3adf5f19940039f8d8afd1fb 100644 (file)
--- a/doc/NEWS.adoc
+++ b/doc/NEWS.adoc
@@ -44,6 +44,9 @@ High-level summary of changes (work in progress)
   decrease the number of CPU cycles for a direct cache hit with up to 15% in
   some cases.
 
+- Added a new inode cache for file hashes, allowing computed hash values to be
+  reused both within and between builds.
+
 - (More to be written.)