Winter '11 Force.com Platform Release
Sandbox Enhancements

• Stay current by refreshing your sandboxes sooner
• Delete unused sandboxes sooner

Developer and configuration-only sandboxes can now be refreshed every day. The refresh interval for full-copy sandboxes remains every 29 days.

In previous releases you could only delete sandboxes that exceeded your sandbox limit. You can now delete sandboxes at any time. Note that you can't create a new sandbox to replace the deleted sandbox until the refresh interval has passed. For full-copy sandboxes, you can create a replacement sandbox after 29 days. For configuration-only sandboxes, you can create a replacement sandbox the next day.