Today we’re shipping Kibana versions 4.5.3 and 4.1.10, which use
Elastic’s new tile service by default. The tile map settings are also
now configurable, so users can use other leaflet-compatible tile
services.
These releases are available right now on the download page.
For more information, check out the blog post: https://www.elastic.co/blog/kibana-4-5-3-and-4-1-10