You can use `nnshimbun' backend.
+2000-05-25 Keiichi Suzuki <keiichi@mdcnet.co.jp>
+
+ * Nana-gnus: Version 7.1.0.21 (This is alpha status.)
+ You can use `nnshimbun' backend.
+
+ * lisp/nnshimbun.el: New file; import from T-gnus.
+
+ * lisp/gnus-group.el (gnus-group-make-shimbun-group): New
+ function; import from T-gnus.
+
+ * lisp/gnus-vers.el (gnus-vers): Update to 7.1.0.21.
+
2000-05-10 Keiichi Suzuki <keiichi@mdcnet.co.jp>
* Nana-gnus: Version 7.1.0.20 (This is alpha status.)