-The Arvados Documentation located in the doc/ directory is licensed under the
-Creative Commons Attribution-Share Alike 3.0 United States (see by-sa-3.0.txt).
+This enables machine processing of license information based on the SPDX
+License Identifiers that are available here: http://spdx.org/licenses/
+
+The full license text for each license is available in this directory:
+
+ AGPL-3.0: agpl-3.0.txt
+ Apache-2.0: apache-2.0.txt
+ CC-BY-SA-3.0: cc-by-sa-3.0.txt
+
+As a general rule, code in the sdk/ directory is licensed Apache-2.0,
+documentation in the doc/ directory is licensed CC-BY-SA-3.0, and
+everything else is licensed AGPL-3.0.
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