Fix 13245:
sched.scheduler class constructor's timefunc and delayfunct parameters are now optional.
scheduler.enter and scheduler.enterabs methods gained a new kwargs parameter.

Patch contributed by Matt Mulsow.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6f7740b..23a67ee 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -387,6 +387,11 @@
 Library
 -------
 
+- Issue #13245: sched.scheduler class constructor's timefunc and
+  delayfunct parameters are now optional.
+  scheduler.enter and scheduler.enterabs methods gained a new kwargs parameter.
+  Patch contributed by Matt Mulsow.
+
 - Issue #12328: Under Windows, refactor handling of Ctrl-C events and
   make _multiprocessing.win32.WaitForMultipleObjects interruptible when
   the wait_flag parameter is false.  Patch by sbt.