Add a bug warning.

diff --git a/advent.adoc b/advent.adoc
index 7280b03b29e7eb72d0f70af8a7d0b4e00acf2d41..a53ccd3c77eb56287740c10f046ea869dca1bf89 100644 (file)
--- a/advent.adoc
+++ b/advent.adoc
@@ -8,8 +8,8 @@ advent - Colossal Cave Adventure
 *advent* [-l logfile] [-o]
 
 == DESCRIPTION ==
-The original Colossal Cave Adventure from 1976 was the origin of all
-text adventures, dungeon-crawl (computer) games, and computer-hosted
+The original Colossal Cave Adventure from 1976-77 was the origin of all
+later text adventures, dungeon-crawl (computer) games, and computer-hosted
 roleplaying games.
 
 This is the last version released by Crowther & Woods, its original
@@ -31,9 +31,14 @@ encouragement of the original authors.
 
 -o:: Old-style.  Restores original interface, no prompt.
 
+== BUGS ==
+
+The binary save file format is fragile and unlikely to survive
+through version bumps.
+
 == REPORTING BUGS ==
 Report bugs to Eric S. Raymond <esr@thyrsus.com>.  The project page is
-at http://catb.org/~esr/advent
+at http://catb.org/~esr/open-adventure
 
 == SEE ALSO ==
 wumpus(6), adventure(6), zork(6), rogue(6), nethack(6).