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Added note on pre-release install

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1 parent 89be425 commit 436532b3ce19216118ab7db0a62776aa79a0b1c6 @mikel mikel committed Feb 5, 2010
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  1. +11 −0 railties/guides/source/3_0_release_notes.textile
11 railties/guides/source/3_0_release_notes.textile
@@ -20,6 +20,17 @@ endprologue.
WARNING: Rails 3.0 is currently in beta. This means that there are probably bugs and that you should "report them": if you see them. You also may not want to run the NORAD nuclear launch application off a beta version. But if you're starting development on a new application and you don't mind getting wind in your hair, please do jump on board!
+TIP: To install the Rails 3 prerelease beta using rubygems you have to install all the Rails dependencies first as these will not be installed for you by rubygems:
+# Use sudo if your setup requires it
+gem install tzinfo builder memcache-client rack \
+ rack-test rack-mount erubis mail text-format \
+ thor bundler
+gem install rails --pre
h3. Upgrading to Rails 3
If you're upgrading an existing application, it's a great idea to have good test coverage before going in. You should also first upgrade to Rails 2.3.5 and make sure your application still runs as expected before attempting to update to Rails 3. Then take heed of the following changes:

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