diff --git a/Dev.md b/Dev.md
index abf3d32..450d76f 100644
--- a/Dev.md
+++ b/Dev.md
@@ -21,7 +21,7 @@ Views into the process of Tahoe hackery.
 
 ## Source Code
 
- * Run `darcs get <http://allmydata.org/source/tahoe/trunk> tahoe` to grab a copy of the source code using [darcs](http://darcs.net).
+ * Run `darcs get --lazy <http://allmydata.org/source/tahoe/trunk-hashedformat> tahoe` to grab a copy of the source code using [darcs v2](http://darcs.net).  `darcs v2` is highly recommended over `darcs v1`.  If you really don't want to install `darcs v2`, then you can use `darcs v1` instead, but you'll have to run a slightly different command-line and be prepared to wait for tens of minutes: `darcs get <http://allmydata.org/source/tahoe/trunk> tahoe`.
  * <http://allmydata.org/source/tahoe/tarballs/> contains snapshots of current source code.
  * The Buildbot page (linked at the top of each page) shows current build and test results.
  * The Timeline (linked at the top of each page) shows changes to the source code, the issue tickets, and the wiki (i.e. this web site).