--- a/doc/EFR-library-API	Tue May 14 07:30:48 2024 +0000
+++ b/doc/EFR-library-API	Wed May 15 05:22:02 2024 +0000
@@ -205,3 +205,13 @@
 flag from its initial value given to EFR_encoder_create() - the new value of
 this flag passed to EFR_encoder_reset() always takes effect.  There is no
 provision for changing this mode within an encoder session without a full reset.
+
+Public const datum: decoder homing frame
+========================================
+
+While the encoder homing frame is the same for all codecs defined by ETSI and
+then later 3GPP, each codec has its own unique decoder homing frame (DHF).  A
+public const datum introduced in libgsmefr version 1.1.0 provides the
+RTP-encoded form of the ETSI-prescribed DHF for EFR:
+
+extern const uint8_t EFR_decoder_homing_frame[EFR_RTP_FRAME_LEN];