To merge changes into the trunk.

  1. Commit changes if working on a branch
  2. Update Project and choose trunk to get a a working copy of the trunk
  3. Goto the Changes toolbox (bottom), or Window->Tool Windows->Changes
  4. In the changes window, click the tab Subversion Working Copies Information
  5. Click Merge From and then choose the branch to merge
  6. Select Revisions to Merge
  7. After all changes have been merged a commit dialog should show up, review changes and click commit.
  8. Change back to branch if necessary by clicking update project and select the branch from the dialog