[m-rev.] for review: update NEWS for 20.06.1

[Julien Fischer]

For review by anyone.

---------------------

Update NEWS for 20.06.1.

NEWS:
     As above.

Julien.

diff --git a/NEWS b/NEWS
index 9120879a3..d2fba1151 100644
--- a/NEWS
+++ b/NEWS
@@ -144,6 +144,31 @@ NEWS for Mercury 20.06.1

  This is a bug-fix release.

+* [Mantis bug #519]. We have deleted an old workaround from the Tcl/Tk
+  binding in the extras that causes linking errors with recent versions
+  of Tcl/Tk.
+
+* [Mantis bug #514]. We have fixed a bug that caused linking errors
+  in the deep profiling version of the Mercury runtime library when using
+  GCC with the `-fno-common` option.
+
+  Users of GCC 10 should note that `-fno-common` is now the default.
+
+* [Mantis bug #513]. We have fixed a bug that caused the compiler to
+  generate code that incorrectly reads variable values from the stack
+  in disjunctions.
+
+* [Github issue #90]. We have fixed a bug that the caused the compiler
+  to abort on code that used type classes in lambda expressions.
+
+* We have fixed a bug that caused the low-level C backend to incorrectly
+  place the contents of `foreign_code` pragmas after the contents of
+  `foreign_proc` pragmas in the generated C code.
+
+* We have fixed a bug with the debugger's `level` command where it would
+  report an error when invoked without any arguments instead of resetting
+  the current ancestor level to the level of the current event.
+

  NEWS for Mercury 20.06
  ======================