diff --git a/README.md b/README.md
index 322e9b98..4687d07b 100644
--- a/README.md
+++ b/README.md
@@ -166,7 +166,7 @@ us know (creating a GitHub issue is probably the best way for that).
 
 ### PDF/Word Documentation
 
-The `doc` directory contains [LMIC-v3.0.99.pdf](doc/LMIC-v3.0.99.pdf), which documents the library APIs and use. It's based on the original IBM documentation, but has been adapted for this version of the library. However, as this library is used for more than Arduino, that document is supplemented by practical details in this document.
+The `doc` directory contains [LMIC-v3.3.0.pdf](doc/LMIC-v3.3.0.pdf), which documents the library APIs and use. It's based on the original IBM documentation, but has been adapted for this version of the library. However, as this library is used for more than Arduino, that document is supplemented by practical details in this document.
 
 ### Adding Regions
 
diff --git a/doc/README.md b/doc/README.md
index bff35a64..7b513b58 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -4,7 +4,8 @@ This directory contains documentation on the use and implementation of the LMIC.
 
 ## Usage documentation
 
-- [`LMIC-v3.0.99.pdf`](./LMIC-v3.0.99.pdf): API documentation on the LMIC as of 3.0.99. Generally the differences between 3.0.99 and 3.2 were bug fixes.
+- [`LMIC-v3.3.0.pdf`](./LMIC-v3.3.0.pdf): API documentation on the LMIC as of 3.3.0.
+- [`LMIC-v3.3.0-redline.pdf`](./LMIC-v3.3.0-redline.pdf): changes in the document since last update, marked up by Litera Workshare Compare.
 
 ## Background information