Just prior to this latest release a couple of the ArcGIS Online services which deliver content in several of the maps and layers available through the Contents tab on the Explorer Resource Center were updated. These changes include the following:

• World Shaded Relief: added additional levels of detail
• Physical World: added additional levels of detail, plus bathymetry at small scales

An ArcGIS Online Forum post also covers these changes, with a few additional details.

To view these updates, you'll have to clear your cache for these layers. To do so, choose Tools, Manage Layers, and then select the layers above (if you are using them in your map) and click the Clear Layer Cache button.

If you don't use these layers regularly, but want to make sure you've cleared their cache to see the updates, you can take your cache housekeeping a little further and delete all of your cache, and start afresh. This isn't required, but you might want to do this from time to time just as a regular housekeeping task.

Remember that if you do clear all your cache, you'll be fetching fresh cache from ESRI's servers, as well as from any other servers that you may connect to, and generating new cache for your local data sources. Your performance will be a little slower while you fetch or generate cache again.

To clear out your cache, choose Tools, then Options, and choose Cache in the options list. Click *** Cache, and under Cache Clean Up choose All Caches before clicking the Delete Caches button.

See the Help topic Cache Management in ArcGIS Explorer for additional details, and more information.

There will be other service updates during Q1 next year, and we'll keep you posted as to when they'll be happening.