diff --git a/ChangeLog b/ChangeLog
index 780c16e3..6cae5f3b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -87,6 +87,7 @@
 - escape ASCII control characters in XML
 - magickload now sniffs some file types itself
 - update radiance load from upstream
+- add region_shrink to tiffsave
 - mapim could fail for float index images with coordinates out of int range
 - scale openexr alpha to 0 - 255
 - close input earlier, when we can [kleisauke]
diff --git a/libvips/foreign/csvload.c b/libvips/foreign/csvload.c
index e7f47343..41825706 100644
--- a/libvips/foreign/csvload.c
+++ b/libvips/foreign/csvload.c
@@ -127,10 +127,6 @@ vips_foreign_load_csv_class_init( VipsForeignLoadCsvClass *class )
 
 	foreign_class->suffs = vips__foreign_csv_suffs;
 
-	/* is_a() is not that quick ... lower the priority.
-	 */
-	foreign_class->priority = -50;
-
 	load_class->get_flags_filename = 
 		vips_foreign_load_csv_get_flags_filename;
 	load_class->get_flags = vips_foreign_load_csv_get_flags;
diff --git a/libvips/foreign/tiffsave.c b/libvips/foreign/tiffsave.c
index 576ac179..d9d76124 100644
--- a/libvips/foreign/tiffsave.c
+++ b/libvips/foreign/tiffsave.c
@@ -12,6 +12,8 @@
  * 	- convert for jpg if jpg compression is on
  * 19/10/17
  * 	- predictor defaults to horizontal, reducing file size, usually
+ * 13/6/18
+ * 	- add region_shrink
  */
 
 /*
diff --git a/libvips/foreign/vips2tiff.c b/libvips/foreign/vips2tiff.c
index ca768fe8..018012e4 100644
--- a/libvips/foreign/vips2tiff.c
+++ b/libvips/foreign/vips2tiff.c
@@ -176,6 +176,8 @@
  * 24/10/17
  * 	- no error on page-height not a factor of image height, just don't
  * 	  write multipage
+ * 13/6/18
+ * 	- add region_shrink
  * 2/7/18
  * 	- copy EXTRASAMPLES to pyramid layers
  * 21/12/18