msonnabaum/chef-drush — pull request #17 by pikesley (2013-03-22 17:12:36+00:00)
Title: This broke on Chef 11

Chef 11 requires

node.default['drush']['version'] = release.text('v')

or it thinks attributes are read-only

There may be other instances of this in the cookbook, I don't know, but this fixes it just enough to make it work for us

:)