We have specifically chosen the one-click installs we have based on their popularity, stability, etc. We do also add new ones regularly. We only support one of each 'type' of application at a time, though... so only one blog, one CMS, etc. We feel that policy provides the highest level of service.
Which of the one-clicks are behind the latest version? We update them regularly.
- DreamHost Head Honcho/Founder