diff --git a/hamlib/config.h b/hamlib/config.h
index 17c3e06..a80249f 100644
--- a/hamlib/config.h
+++ b/hamlib/config.h
@@ -165,6 +165,9 @@
 /* Define to 1 if you have the <netinet/in.h> header file. */
 /* #undef HAVE_NETINET_IN_H */
 
+/* Define if parallel devices are to be built */
+#define HAVE_PARALLEL 1
+
 /* Define to 1 if you have the `pow' function. */
 #define HAVE_POW 1
 
@@ -364,7 +367,7 @@
 #define PACKAGE_NAME "Hamlib"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "Hamlib 4.5.1"
+#define PACKAGE_STRING "Hamlib 4.5.4"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "hamlib"
@@ -373,7 +376,7 @@
 #define PACKAGE_URL "http://www.hamlib.org"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "4.5.1"
+#define PACKAGE_VERSION "4.5.4"
 
 /* Define to necessary symbol if this constant uses a non-standard name on
    your system. */
@@ -413,7 +416,7 @@
 
 
 /* Version number of package */
-#define VERSION "4.5.1"
+#define VERSION "4.5.4"
 
 /* Define to 1 if on MINIX. */
 /* #undef _MINIX */
diff --git a/hamlib/libhamlib-4.dll b/hamlib/libhamlib-4.dll
index f8fc02b..8a2afc2 100644
Binary files a/hamlib/libhamlib-4.dll and b/hamlib/libhamlib-4.dll differ
diff --git a/hamlib/libhamlib.dll.a b/hamlib/libhamlib.dll.a
index 5d762f3..7ad64d0 100644
Binary files a/hamlib/libhamlib.dll.a and b/hamlib/libhamlib.dll.a differ
diff --git a/hamlib/rig.h b/hamlib/rig.h
index 08ecb8b..5d59e2e 100644
--- a/hamlib/rig.h
+++ b/hamlib/rig.h
@@ -333,7 +333,7 @@ typedef enum {
  */
 /* TODO: kill me, and replace by real AGC delay */
 enum agc_level_e {
-    RIG_AGC_OFF =       0,
+    RIG_AGC_OFF = 0,
     RIG_AGC_SUPERFAST,
     RIG_AGC_FAST,
     RIG_AGC_SLOW,
@@ -341,7 +341,8 @@ enum agc_level_e {
     RIG_AGC_MEDIUM,
     RIG_AGC_AUTO,
     RIG_AGC_LONG,
-    RIG_AGC_ON              /*< Turns AGC ON -- Kenwood -- restores last level set */
+    RIG_AGC_ON,             /*< Turns AGC ON -- Kenwood -- restores last level set */
+    RIG_AGC_NONE            /*< Rig does not have CAT AGC control */
 };
 
 
@@ -3396,6 +3397,7 @@ extern HAMLIB_EXPORT(int) rig_set_vfo_opt(RIG *rig, int status);
 extern HAMLIB_EXPORT(int) rig_get_vfo_info(RIG *rig, vfo_t vfo, freq_t *freq, rmode_t *mode, pbwidth_t *width, split_t *split, int *satmode);
 extern HAMLIB_EXPORT(int) rig_get_rig_info(RIG *rig, char *response, int max_response_len);
 extern HAMLIB_EXPORT(int) rig_get_cache(RIG *rig, vfo_t vfo, freq_t *freq, int * cache_ms_freq, rmode_t *mode, int *cache_ms_mode, pbwidth_t *width, int *cache_ms_width);
+extern HAMLIB_EXPORT(int) rig_get_cache_freq(RIG *rig, vfo_t vfo, freq_t *freq, int * cache_ms_freq);
 
 extern HAMLIB_EXPORT(int) rig_set_clock(RIG *rig, int year, int month, int day, int hour, int min, int sec, double msec, int utc_offset);
 extern HAMLIB_EXPORT(int) rig_get_clock(RIG *rig, int *year, int *month, int *day, int *hour, int *min, int *sec, double *msec, int *utc_offset);
@@ -3426,6 +3428,8 @@ extern HAMLIB_EXPORT(char*) rig_make_md5(char *pass);
 extern HAMLIB_EXPORT(int) rig_set_lock_mode(RIG *rig, int lock);
 extern HAMLIB_EXPORT(int) rig_get_lock_mode(RIG *rig, int *lock);
 
+extern HAMLIB_EXPORT(int) rig_is_model(RIG *rig, rig_model_t model);
+
 
 //! @endcond
 
diff --git a/hamlib/riglist.h b/hamlib/riglist.h
index be21679..3c347da 100644
--- a/hamlib/riglist.h
+++ b/hamlib/riglist.h
@@ -185,6 +185,7 @@
 #define RIG_MODEL_MALACHITE RIG_MAKE_MODEL(RIG_KENWOOD, 49)
 #define RIG_MODEL_LAB599_TX500 RIG_MAKE_MODEL(RIG_KENWOOD,50)
 #define RIG_MODEL_SDRUNO RIG_MAKE_MODEL(RIG_KENWOOD,51)
+#define RIG_MODEL_QRPLABS RIG_MAKE_MODEL(RIG_KENWOOD,52)
 
 /*
  * Icom
diff --git a/hamlib/rotlist.h b/hamlib/rotlist.h
index b95f86f..a96b9a5 100644
--- a/hamlib/rotlist.h
+++ b/hamlib/rotlist.h
@@ -557,6 +557,7 @@
 #define ROT_MODEL_PROSISTEL_D_AZ ROT_MAKE_MODEL(ROT_PROSISTEL, 1)
 #define ROT_MODEL_PROSISTEL_D_EL ROT_MAKE_MODEL(ROT_PROSISTEL, 2)
 #define ROT_MODEL_PROSISTEL_COMBI_TRACK_AZEL ROT_MAKE_MODEL(ROT_PROSISTEL, 3)
+#define ROT_MODEL_PROSISTEL_D_EL_CBOXAZ ROT_MAKE_MODEL(ROT_PROSISTEL, 4)
 
 
 /**