Issues with the World Imagery Service

We refreshed our ArcGIS Online Imagery Basemap on October 25th with updated data for much of Europe. This updated data brought many benefits, primarily more recent data and significant quality improvements across large areas. However, we have observed issues with the quality of some of the imagery in the United Kingdom and the Republic of Ireland.

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ArcGIS Online Basemap Security

Esri have started migrating to stronger encryption certificates utilising SHA-256 for basemaps via HTTPS - Previously it was using SHA-1.  Esri will continue updating ArcGIS Online certificates over the next few months.  This change should be transparent to most of our users.

One group of users that might run into issues are ArcPad users with Windows Mobile 6.5 and earlier.  Many of those devices still don't support SHA-256, which means you will begin seeing an increase in the number of ArcGIS Online service endpoints you cannot access via HTTPS. If you are using such a device, please contact your hardware vendor to find out your vendor's patch plans. We will be posting more information about this using the Twitter handle @ArcGIS Online.

Using your own rasters with OS Open basemaps

With the release of the OS Open basemaps in ArcGIS Online, customers may wish to overlay their own raster tile layers on the basemaps. In some instances an error that the layer cannot be added to the map because it's coordinate system or tiling scheme can't be adjusted to align properly with the basemap.

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