I installed Typo 4.1 (using svn export), but it does not work.
I got this error screen:

Showing app/views/admin/general/index.rhtml where line #89 raised:

superclass mismatch for class MacroPost

Extracted source (around line #89):

86:             <li>
87:                 <label class="float" for="text_filter"><%= _("Article filter")%>:</label>
88:                 <select name="setting[text_filter]" id="text_filter">
89:                   <%= options_for_select text_filter_options, TextFilter.find_by_name(this_blog.text_filter) %>
90:                 </select>
91:             </li>
92:             <li>

rake test:units failed too:

rake test:units
(in /home/webpark/hitman.name/typo)
/usr/bin/ruby1.8 -Ilib:test "/usr/lib/ruby/gems/1.8/gems/rake-0.7.2/lib/rake/rake_test_loader.rb" "test/unit/amazon_sidebar_test.rb" "test/unit/user_test.rb" "test/unit/notification_mailer_test.rb" "test/unit/delicious_test.rb" "test/unit/static_sidebar_test.rb" "test/unit/blog_test.rb" "test/unit/article_test.rb" "test/unit/trackback_test.rb" "test/unit/notification_test.rb" "test/unit/magnolia_test.rb" "test/unit/resource_test.rb" "test/unit/fortythree_test.rb" "test/unit/ping_test.rb" "test/unit/cache_support_test.rb" "test/unit/audioscrobbler_test.rb" "test/unit/page_cache_test.rb" "test/unit/redirect_test.rb" "test/unit/comment_test.rb" "test/unit/theme_test.rb" "test/unit/trigger_test.rb" "test/unit/blacklist_pattern_test.rb" "test/unit/configuration_test.rb" "test/unit/sidebar_test.rb" "test/unit/metafragment_test.rb" "test/unit/flickr_test.rb" "test/unit/tag_test.rb" "test/unit/page_test.rb" "test/unit/category_test.rb" "test/unit/text_filter_test.rb" "test/unit/content_state/factory_test.rb" "test/unit/content_state/feedback_states_test.rb" 
Loaded suite /usr/lib/ruby/gems/1.8/gems/rake-0.7.2/lib/rake/rake_test_loader
Started
.......................................................................................................................................................F..............................
Finished in 19.066426 seconds.

  1) Failure:
test_filtertypes(TextFilterTest)
    [./test/unit/text_filter_test.rb:80:in @test_filtertypes'
     ./test/unit/content_state/../../test_helper.rb:22:in @+send+'
     ./test/unit/content_state/../../test_helper.rb:22:in @run']:
<false> is not true.

182 tests, 537 assertions, 1 failures, 0 errors
rake aborted!
Command failed with status (1): [/usr/bin/ruby1.8 -Ilib:test "/usr/lib/ruby...]

(See full trace by running task with --trace)

I suspect something wrong with textfilters ...