diff --git a/README.md b/README.md
index 385f920..1db5c03 100644
--- a/README.md
+++ b/README.md
@@ -12,11 +12,12 @@ This ESP32 component provides LoRaWAN communication with [The Things Network](ht
 
 The library is based on the LMIC library from IBM (specifically the well-maintained version by MCCI – see their [GitHub repository](https://github.com/mcci-catena/arduino-lmic)) and provides a high-level API specifically targeted at The Things Network.
 
-## New in version 3.2
+## New in version 3.3
+
+- Verified compatibility with ESP-IDF v4.2
+- Upgraded underlying library mcci-catena/arduino-lmic to v3.3.0 (no relevant changes)
+- Ensure interrupt code is in IRAM
 
-- Based on latest version of LMIC library (3.2.0) and ESP-IDF v4.0.x
-- Monitoring of RF parameters (frequency, bandwidth, spreading factor, RSSI)
-- Shutdown/startup of radio, enabling/disabling of ADR
 
 ## Get Started
 
diff --git a/library.json b/library.json
index b629a4d..2ee6c91 100644
--- a/library.json
+++ b/library.json
@@ -13,7 +13,7 @@
         "url": "https://github.com/manuelbl/ttn-esp32.git",
         "branch": "master"
     },
-    "version": "3.2.0",
+    "version": "3.3.0",
     "license": "MIT License",
     "export": {
         "include": [