+ % cvs update [-r TAG]
+
+Major tags are following:
+
+ semi-gnus assigned to the latest stable version. It is
+ very conservative.
+
+ for-semi-N1_N2 assigned to the latest stable version for SEMI
+ API N1.N2 (N1 and N2 are natural number).
+ (e.g. `for-semi-1_3' is for SEMI API 1.3)
+
+ gnus-N1_N2_N3 assigned to gnus(Gnus) N1.N2.N3
+ (e.g. `gnus-6_2_1' means gnus 6.2.1).