NEWS
changeset 67616 1d005f514417
parent 67591 6fd9902057f5
child 67702 2d9918f5b33c
--- a/NEWS	Thu Feb 15 13:04:36 2018 +0100
+++ b/NEWS	Fri Feb 16 10:59:14 2018 +0100
@@ -210,6 +210,9 @@
 * Predicate pairwise_coprime abolished, use "pairwise coprime" instead.
 INCOMPATIBILITY.
 
+* The relator rel_filter on filters has been strengthened to its 
+canonical categorical definition with better properties. INCOMPATIBILITY.
+
 * HOL-Algebra: renamed (^) to [^]
 
 * Session HOL-Analysis: Moebius functions and the Riemann mapping