Redmine/redmine/app/views/projects/changelog.rhtml

<h2><%=_('Change log')%></h2>

<% fixed_issues = @fixed_issues.group_by {|i| i.fixed_version } %>
<% fixed_issues.each do |version, issues| %>
  <p><strong><%= version.name %></strong> - <%= format_date(version.effective_date) %><br />
  <%=h version.description %></p>
  <ul>  
    <% issues.each do |i| %>
    <li><%= link_to i.long_id, :controller => 'issues', :action => 'show', :id => i %> [<%= i.tracker.name %>]: <%= i.subject %></li>
    <% end %>
  </ul>
<% end %>