diff --git a/winsup/cygwin/release/2.12.0 b/winsup/cygwin/release/2.12.0
index d739a5cb2..a0dce6ffd 100644
--- a/winsup/cygwin/release/2.12.0
+++ b/winsup/cygwin/release/2.12.0
@@ -42,7 +42,7 @@ What changed:
Deleting an in-use file now actually removes the file, rather than moving
it to the recycler bin.
-- Use the new POSIX rename semantics on NTFS starting with Windows 10 1709.
+- Use the new POSIX rename semantics on NTFS starting with Windows 10 1809.
Renaming a file to another in-use file now actually removes the other file,
rather than moving it to the recycler bin.
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index 5aee22b9c..d4fc74510 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -63,18 +63,18 @@ all clocks, except CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID.
clock_setres is a no-op now.
-
-Use the new POSIX rename semantics on NTFS starting with Windows 10
-1709. Renaming a file to another in-use file now actually removes the
-other file, rather than moving it to the recycler bin.
-
-
Use the new POSIX unlink semantics on NTFS starting with Windows 10
1709. Deleting an in-use file now actually removes the file, rather
than moving it to the recycler bin.
+
+Use the new POSIX rename semantics on NTFS starting with Windows 10
+1809. Renaming a file to another in-use file now actually removes the
+other file, rather than moving it to the recycler bin.
+
+
open(..., O_TMPFILE) now moves the file to the trash bin immediately,
to free the parent directory.