diff --git a/CHANGES.md b/CHANGES.md
index c096a540d..290a34ca9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -78,6 +78,8 @@ Changes from ns-3.38 to ns-3-dev
 * (buildings) Calculation of the O2I Low/High Building Penetration Losses based on 3GPP 38.901 7.4.3.1 was missing. These losses are now included in the pathloss calculation when buildings are present.
 * (network) The function `Buffer::Allocate` will over-provision `ALLOC_OVER_PROVISION` bytes when allocating buffers for packets. `ALLOC_OVER_PROVISION` is currently set to 100 bytes.
 * (wifi) By default, the `SpectrumWifiHelper` now adds a `WifiBandwidthFilter` to discard out-of-band signals before scheduling them on the receiver.  This should not affect the simulated behavior of Wi-Fi but may speed up the execution of large Wi-Fi simulations.
+* (wifi) Protection mechanisms (e.g., RTS/CTS) are not used if destinations have already received (MU-)RTS in the current TXOP
+* (wifi) Protection mechanisms can be used for management frames as well (if needed)
 
 Changes from ns-3.37 to ns-3.38
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