Rake published rdoc version and arity of Rake::Task#execute - wrong number of arguments (0 for 1)

Does anybody know if there is a reason why the rdoc for the rake gem
[1] is currently at version 0.7.x while the gem itself is at 0.8.1?

This caused me a bit of pain today when diagnosing a problem caused by
the change to Rake::Task#execute method which used to not take any
arguments, but now takes a single argument. I’ve posted the stack
trace below in case it saves anyone else a bit of pain.

Also, does anyone know why a single argument is now required? I’ve
found I can pass in nil as the argument and my rakefile works.

Thanks.

James.

[1] http://rake.rubyforge.org

rake aborted!
wrong number of arguments (0 for 1)
…/lib/tasks/acceptance.rake:16:in execute' ...../lib/tasks/acceptance.rake:16 /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in call’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in
execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in each’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in
execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:508:in invoke_with_call_chain’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in
synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in invoke_with_call_chain’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:494:in invoke' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1931:in invoke_task’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in
top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in each’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in
top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in standard_exception_handling’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1903:in
top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1881:in run’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in
standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1878:in run’
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/bin/rake:31
/opt/local/bin/rake:16:in `load’
/opt/local/bin/rake:16

$ ruby -v
ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-darwin8.10.3]

$ rake --version
rake, version 0.8.1

$ gem -v
0.9.4