Merge remote-tracking branch 'origin/develop' into merge_hyperslab_update_01

22 files changed, 338 insertions, 170 deletions

diff --git a/java/src/hdf/hdf5lib/HDF5Constants.java b/java/src/hdf/hdf5lib/HDF5Constants.java
index a0c2ed6..9294bad 100644
--- a/java/src/hdf/hdf5lib/HDF5Constants.java
+++ b/java/src/hdf/hdf5lib/HDF5Constants.java
@@ -216,6 +216,7 @@ public class HDF5Constants {
     public static final int H5F_LIBVER_EARLIEST = H5F_LIBVER_EARLIEST();
     public static final int H5F_LIBVER_V18 = H5F_LIBVER_V18();
     public static final int H5F_LIBVER_V110 = H5F_LIBVER_V110();
+    public static final int H5F_LIBVER_V112 = H5F_LIBVER_V112();
     public static final int H5F_LIBVER_NBOUNDS = H5F_LIBVER_NBOUNDS();
     public static final int H5F_LIBVER_LATEST = H5F_LIBVER_LATEST();
     public static final int H5F_OBJ_ALL = H5F_OBJ_ALL();
@@ -1049,6 +1050,8 @@ public class HDF5Constants {
 
     private static native final int H5F_LIBVER_V110();
 
+    private static native final int H5F_LIBVER_V112();
+
     private static native final int H5F_LIBVER_NBOUNDS();
 
     private static native final int H5F_LIBVER_LATEST();
diff --git a/java/src/jni/h5Constants.c b/java/src/jni/h5Constants.c
index 2ac0892..74eb436 100644
--- a/java/src/jni/h5Constants.c
+++ b/java/src/jni/h5Constants.c
@@ -401,6 +401,8 @@ Java_hdf_hdf5lib_HDF5Constants_H5F_1LIBVER_1V18(JNIEnv *env, jclass cls){return
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5F_1LIBVER_1V110(JNIEnv *env, jclass cls){return H5F_LIBVER_V110;}
 JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5F_1LIBVER_1V112(JNIEnv *env, jclass cls){return H5F_LIBVER_V112;}
+JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5F_1LIBVER_1NBOUNDS(JNIEnv *env, jclass cls){return H5F_LIBVER_NBOUNDS;}
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5F_1LIBVER_1LATEST(JNIEnv *env, jclass cls){return H5F_LIBVER_LATEST;}
diff --git a/java/test/TestH5P.java b/java/test/TestH5P.java
index 981f34e..e46ed48 100644
--- a/java/test/TestH5P.java
+++ b/java/test/TestH5P.java
@@ -214,7 +214,7 @@ public class TestH5P {
 
     @Test(expected = HDF5FunctionArgumentException.class)
     public void testH5Pset_libver_bounds_invalidhigh() throws Throwable {
-        H5.H5Pset_libver_bounds(fapl_id, HDF5Constants.H5F_LIBVER_V110, HDF5Constants.H5F_LIBVER_V110+1);
+        H5.H5Pset_libver_bounds(fapl_id, HDF5Constants.H5F_LIBVER_V112, HDF5Constants.H5F_LIBVER_V112+1);
     }
 
     @Test
diff --git a/src/H5Aint.c b/src/H5Aint.c
index 88a4780..d8ba92a 100644
--- a/src/H5Aint.c
+++ b/src/H5Aint.c
@@ -108,6 +108,7 @@ static herr_t H5A__iterate_common(hid_t loc_id, H5_index_t idx_type,
 const unsigned H5O_attr_ver_bounds[] = {
     H5O_ATTR_VERSION_1,         /* H5F_LIBVER_EARLIEST */
     H5O_ATTR_VERSION_3,         /* H5F_LIBVER_V18 */
+    H5O_ATTR_VERSION_3,         /* H5F_LIBVER_V110 */
     H5O_ATTR_VERSION_LATEST     /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5CX.c b/src/H5CX.c
index 5a0934a..c57e65d 100644
--- a/src/H5CX.c
+++ b/src/H5CX.c
@@ -189,6 +189,10 @@ typedef struct H5CX_t {
     hid_t dcpl_id;              /* DCPL ID for API operation */
     H5P_genplist_t *dcpl;       /* Dataset Creation Property List */
 
+    /* FAPL */
+    hid_t fapl_id;              /* FAPL ID for API operation */
+    H5P_genplist_t *fapl;       /* File Access Property List */
+
     /* Internal: Object tagging info */
     haddr_t tag;                /* Current object's tag (ohdr chunk #0 address) */
 
@@ -278,6 +282,12 @@ typedef struct H5CX_t {
     hbool_t do_min_dset_ohdr;   /* Whether to minimize dataset object header */
     hbool_t do_min_dset_ohdr_valid;   /* Whether minimize dataset object header flag is valid */
 
+    /* Cached FAPL properties */
+    H5F_libver_t low_bound;     /* low_bound property for H5Pset_libver_bounds() */
+    hbool_t low_bound_valid;    /* Whether low_bound property is valid */
+    H5F_libver_t high_bound;    /* high_bound property for H5Pset_libver_bounds */
+    hbool_t high_bound_valid;   /* Whether high_bound property is valid */
+
     /* Cached VOL settings */
     H5VL_connector_prop_t vol_connector_prop;  /* Property for VOL connector ID & info */
     hbool_t vol_connector_prop_valid; /* Whether property for VOL connector ID & info is valid */
@@ -338,6 +348,13 @@ typedef struct H5CX_dcpl_cache_t {
     hbool_t do_min_dset_ohdr;   /* Whether to minimize dataset object header */
 } H5CX_dcpl_cache_t;
 
+/* Typedef for cached default file access property list information */
+/* (Same as the cached DXPL struct, above, except for the default DCPL) */
+typedef struct H5CX_fapl_cache_t {
+    H5F_libver_t low_bound;     /* low_bound property for H5Pset_libver_bounds() */
+    H5F_libver_t high_bound;    /* high_bound property for H5Pset_libver_bounds */
+} H5CX_fapl_cache_t;
+
 
 /********************/
 /* Local Prototypes */
@@ -374,6 +391,9 @@ static H5CX_lapl_cache_t H5CX_def_lapl_cache;
 /* Define a "default" dataset creation property list cache structure to use for default DCPLs */
 static H5CX_dcpl_cache_t H5CX_def_dcpl_cache;
 
+/* Define a "default" file access property list cache structure to use for default FAPLs */
+static H5CX_fapl_cache_t H5CX_def_fapl_cache;
+
 /* Declare a static free list to manage H5CX_node_t structs */
 H5FL_DEFINE_STATIC(H5CX_node_t);
 
@@ -398,6 +418,7 @@ H5CX__init_package(void)
     H5P_genplist_t *dx_plist;           /* Data transfer property list */
     H5P_genplist_t *la_plist;           /* Link access property list */
     H5P_genplist_t *dc_plist;           /* Dataset creation property list */
+    H5P_genplist_t *fa_plist;           /* File access property list */
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_STATIC
@@ -511,6 +532,23 @@ H5CX__init_package(void)
     if(H5P_get(dc_plist, H5D_CRT_MIN_DSET_HDR_SIZE_NAME, &H5CX_def_dcpl_cache.do_min_dset_ohdr) < 0)
         HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve dataset minimize flag")
 
+    /* Reset the "default FAPL cache" information */
+    HDmemset(&H5CX_def_fapl_cache, 0, sizeof(H5CX_fapl_cache_t));
+
+    /* Get the default FAPL cache information */
+
+    /* Get the default file access property list */
+    if(NULL == (fa_plist = (H5P_genplist_t *)H5I_object(H5P_FILE_ACCESS_DEFAULT)))
+        HGOTO_ERROR(H5E_CONTEXT, H5E_BADTYPE, FAIL, "not a dataset create property list")
+
+    /* Get low_bound */
+    if(H5P_get(fa_plist, H5F_ACS_LIBVER_LOW_BOUND_NAME, &H5CX_def_fapl_cache.low_bound) < 0)
+        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve dataset minimize flag")
+
+    if(H5P_get(fa_plist, H5F_ACS_LIBVER_HIGH_BOUND_NAME, &H5CX_def_fapl_cache.high_bound) < 0)
+        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve dataset minimize flag")
+
+
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5CX__init_package() */
@@ -635,6 +673,7 @@ H5CX__push_common(H5CX_node_t *cnode)
     /* Set non-zero context info */
     cnode->ctx.dxpl_id = H5P_DATASET_XFER_DEFAULT;
     cnode->ctx.lapl_id = H5P_LINK_ACCESS_DEFAULT;
+    cnode->ctx.fapl_id = H5P_FILE_ACCESS_DEFAULT;
     cnode->ctx.tag = H5AC__INVALID_TAG;
     cnode->ctx.ring = H5AC_RING_USER;
 
@@ -1013,6 +1052,42 @@ H5CX_set_dcpl(hid_t dcpl_id)
     FUNC_LEAVE_NOAPI_VOID
 } /* end H5CX_set_dcpl() */
 
+/*-------------------------------------------------------------------------
+ * Function:    H5CX_set_libver_bounds
+ *
+ * Purpose:     Sets the low/high bounds according to "f" for the current API call context.
+ *              When "f" is NULL, the low/high bounds are set to latest format.
+ *
+ * Return:      Non-negative on success / Negative on failure
+ *
+ * Programmer:  Vailin Choi
+ *              March 27, 2019
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5CX_set_libver_bounds(H5F_t *f)
+{
+    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity check */
+    HDassert(head && *head);
+
+    /* Set the API context value */
+    (*head)->ctx.low_bound = (f == NULL) ? H5F_LIBVER_LATEST : H5F_LOW_BOUND(f);
+    (*head)->ctx.high_bound = (f == NULL) ? H5F_LIBVER_LATEST : H5F_HIGH_BOUND(f);
+
+    /* Mark the values as valid */
+    (*head)->ctx.low_bound_valid = TRUE;
+    (*head)->ctx.high_bound_valid = TRUE;
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5CX_set_libver_bounds() */
+
 
 /*-------------------------------------------------------------------------
  * Function:    H5CX_set_lapl
@@ -1083,6 +1158,7 @@ H5CX_set_apl(hid_t *acspl_id, const H5P_libclass_t *libclass,
         *acspl_id = *libclass->def_plist_id;
     else {
         htri_t is_lapl;         /* Whether the access property list is (or is derived from) a link access property list */
+        htri_t is_fapl;         /* Whether the access property list is (or is derived from) a file access property list */
 
 #ifdef H5CX_DEBUG
         /* Sanity check the access property list class */
@@ -1096,6 +1172,12 @@ H5CX_set_apl(hid_t *acspl_id, const H5P_libclass_t *libclass,
         else if(is_lapl)
             (*head)->ctx.lapl_id = *acspl_id;
 
+        /* Check for file access property and set API context if so */
+        if((is_fapl = H5P_class_isa(*libclass->pclass, *H5P_CLS_FACC->pclass)) < 0)
+            HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "can't check for file access class")
+        else if(is_fapl)
+            (*head)->ctx.fapl_id = *acspl_id;
+
 #ifdef H5_HAVE_PARALLEL
         /* If this routine is not guaranteed to be collective (i.e. it doesn't
          * modify the structural metadata in a file), check if the application
@@ -2286,6 +2368,43 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5CX_get_nlinks() */
 
+/*-------------------------------------------------------------------------
+ * Function:    H5CX_get_libver_bounds
+ *
+ * Purpose:     Retrieves the low/high bounds for the current API call context.
+ *
+ * Return:      Non-negative on success / Negative on failure
+ *
+ * Programmer:  Vailin Choi
+ *              March 27, 2019
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5CX_get_libver_bounds(H5F_libver_t *low_bound, H5F_libver_t *high_bound)
+{
+    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity check */
+    HDassert(low_bound);
+    HDassert(high_bound);
+    HDassert(head && *head);
+    HDassert(H5P_DEFAULT != (*head)->ctx.fapl_id);
+
+    H5CX_RETRIEVE_PROP_VALID(fapl, H5P_FILE_ACCESS_DEFAULT, H5F_ACS_LIBVER_LOW_BOUND_NAME, low_bound)
+    H5CX_RETRIEVE_PROP_VALID(fapl, H5P_FILE_ACCESS_DEFAULT, H5F_ACS_LIBVER_HIGH_BOUND_NAME, high_bound)
+
+    /* Get the values */
+    *low_bound = (*head)->ctx.low_bound;
+    *high_bound = (*head)->ctx.high_bound;
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5CX_get_libver_bounds() */
+
 
 /*-------------------------------------------------------------------------
  * Function:    H5CX_get_dset_min_ohdr_flag
diff --git a/src/H5CXprivate.h b/src/H5CXprivate.h
index 80f1ac4..4270155 100644
--- a/src/H5CXprivate.h
+++ b/src/H5CXprivate.h
@@ -79,6 +79,7 @@ H5_DLL herr_t H5CX_free_state(H5CX_state_t *api_state);
 H5_DLL void H5CX_set_dxpl(hid_t dxpl_id);
 H5_DLL void H5CX_set_lapl(hid_t lapl_id);
 H5_DLL void H5CX_set_dcpl(hid_t dcpl_id);
+H5_DLL herr_t H5CX_set_libver_bounds(H5F_t *f);
 H5_DLL herr_t H5CX_set_apl(hid_t *acspl_id, const H5P_libclass_t *libclass,
     hid_t loc_id, hbool_t is_collective);
 H5_DLL herr_t H5CX_set_loc(hid_t loc_id);
@@ -127,6 +128,9 @@ H5_DLL herr_t H5CX_get_nlinks(size_t *nlinks);
 /* "Getter" routines for DCPL properties cached in API context */
 H5_DLL herr_t H5CX_get_dset_min_ohdr_flag(hbool_t *dset_min_ohdr_flag);
 
+/* "Getter" routines for FAPL properties cached in API context */
+H5_DLL herr_t H5CX_get_libver_bounds(H5F_libver_t *low_bound, H5F_libver_t *high_bound);
+
 /* "Setter" routines for API context info */
 H5_DLL void H5CX_set_tag(haddr_t tag);
 H5_DLL void H5CX_set_ring(H5AC_ring_t ring);
diff --git a/src/H5Dlayout.c b/src/H5Dlayout.c
index 494d2c8..fb28489 100644
--- a/src/H5Dlayout.c
+++ b/src/H5Dlayout.c
@@ -50,6 +50,7 @@
 const unsigned H5O_layout_ver_bounds[] = {
     H5O_LAYOUT_VERSION_1,       /* H5F_LIBVER_EARLIEST */
     H5O_LAYOUT_VERSION_3,       /* H5F_LIBVER_V18 */  /* H5O_LAYOUT_VERSION_DEFAULT */
+    H5O_LAYOUT_VERSION_4,       /* H5F_LIBVER_V110 */
     H5O_LAYOUT_VERSION_LATEST   /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5Fint.c b/src/H5Fint.c
index 03bbbd9..5d03b3b 100644
--- a/src/H5Fint.c
+++ b/src/H5Fint.c
@@ -3327,7 +3327,7 @@ H5F__start_swmr_write(H5F_t *f)
         HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file superblock version - should be at least 3")
 
     /* Check for correct file format version */
-    if((f->shared->low_bound != H5F_LIBVER_V110) || (f->shared->high_bound != H5F_LIBVER_V110))
+    if((f->shared->low_bound < H5F_LIBVER_V110) || (f->shared->high_bound < H5F_LIBVER_V110))
         HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file format version does not support SWMR - needs to be 1.10 or greater")
 
     /* Should not be marked for SWMR writing mode already */
diff --git a/src/H5Fpublic.h b/src/H5Fpublic.h
index 9f1ed01..8274654 100644
--- a/src/H5Fpublic.h
+++ b/src/H5Fpublic.h
@@ -178,11 +178,12 @@ typedef enum H5F_libver_t {
     H5F_LIBVER_ERROR = -1,
     H5F_LIBVER_EARLIEST = 0,    /* Use the earliest possible format for storing objects */
     H5F_LIBVER_V18 = 1,         /* Use the latest v18 format for storing objects */
-    H5F_LIBVER_V110 = 2,        /* Use the latest v10 format for storing objects */
+    H5F_LIBVER_V110 = 2,        /* Use the latest v110 format for storing objects */
+    H5F_LIBVER_V112 = 3,        /* Use the latest v112 format for storing objects */
     H5F_LIBVER_NBOUNDS
 } H5F_libver_t;
 
-#define H5F_LIBVER_LATEST   H5F_LIBVER_V110
+#define H5F_LIBVER_LATEST   H5F_LIBVER_V112
 
 /* File space handling strategy */
 typedef enum H5F_fspace_strategy_t {
diff --git a/src/H5Fsuper.c b/src/H5Fsuper.c
index 3c225a2..aa5a85d 100644
--- a/src/H5Fsuper.c
+++ b/src/H5Fsuper.c
@@ -76,6 +76,7 @@ H5FL_DEFINE(H5F_super_t);
 static const unsigned HDF5_superblock_ver_bounds[] = {
     HDF5_SUPERBLOCK_VERSION_DEF,    /* H5F_LIBVER_EARLIEST */
     HDF5_SUPERBLOCK_VERSION_2,      /* H5F_LIBVER_V18 */
+    HDF5_SUPERBLOCK_VERSION_3,      /* H5F_LIBVER_V110 */
     HDF5_SUPERBLOCK_VERSION_LATEST  /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5Ofill.c b/src/H5Ofill.c
index ebd885c..d87dc84 100644
--- a/src/H5Ofill.c
+++ b/src/H5Ofill.c
@@ -157,6 +157,7 @@ const H5O_msg_class_t H5O_MSG_FILL_NEW[1] = {{
 const unsigned H5O_fill_ver_bounds[] = {
     H5O_FILL_VERSION_1,     /* H5F_LIBVER_EARLIEST */
     H5O_FILL_VERSION_2,     /* H5F_LIBVER_V18 */
+    H5O_FILL_VERSION_3,     /* H5F_LIBVER_V110 */
     H5O_FILL_VERSION_LATEST /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5Oint.c b/src/H5Oint.c
index 570f94e..60aae45 100644
--- a/src/H5Oint.c
+++ b/src/H5Oint.c
@@ -130,6 +130,7 @@ const H5O_msg_class_t *const H5O_msg_class_g[] = {
 const unsigned H5O_obj_ver_bounds[] = {
     H5O_VERSION_1,      /* H5F_LIBVER_EARLIEST */
     H5O_VERSION_2,      /* H5F_LIBVER_V18 */
+    H5O_VERSION_2,      /* H5F_LIBVER_V110 */
     H5O_VERSION_LATEST  /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5Opline.c b/src/H5Opline.c
index 85a95b7..609f2eb 100644
--- a/src/H5Opline.c
+++ b/src/H5Opline.c
@@ -93,6 +93,7 @@ const H5O_msg_class_t H5O_MSG_PLINE[1] = {{
 const unsigned H5O_pline_ver_bounds[] = {
     H5O_PLINE_VERSION_1,        /* H5F_LIBVER_EARLIEST */
     H5O_PLINE_VERSION_2,        /* H5F_LIBVER_V18 */
+    H5O_PLINE_VERSION_2,        /* H5F_LIBVER_V110 */
     H5O_PLINE_VERSION_LATEST    /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5S.c b/src/H5S.c
index bf30a26..301060f 100644
--- a/src/H5S.c
+++ b/src/H5S.c
@@ -66,6 +66,7 @@ hbool_t H5_PKG_INIT_VAR = FALSE;
 const unsigned H5O_sdspace_ver_bounds[] = {
     H5O_SDSPACE_VERSION_1,      /* H5F_LIBVER_EARLIEST */
     H5O_SDSPACE_VERSION_2,      /* H5F_LIBVER_V18 */
+    H5O_SDSPACE_VERSION_2,      /* H5F_LIBVER_V110 */
     H5O_SDSPACE_VERSION_LATEST  /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5T.c b/src/H5T.c
index 1c4acb9..8c8a9b7 100644
--- a/src/H5T.c
+++ b/src/H5T.c
@@ -513,6 +513,7 @@ H5FL_DEFINE(H5T_shared_t);
 const unsigned H5O_dtype_ver_bounds[] = {
     H5O_DTYPE_VERSION_1,        /* H5F_LIBVER_EARLIEST */
     H5O_DTYPE_VERSION_3,        /* H5F_LIBVER_V18 */
+    H5O_DTYPE_VERSION_3,        /* H5F_LIBVER_V110 */
     H5O_DTYPE_VERSION_LATEST    /* H5F_LIBVER_LATEST */
 };
 
diff --git a/src/H5trace.c b/src/H5trace.c
index 9a13193..23f2f1d 100644
--- a/src/H5trace.c
+++ b/src/H5trace.c
@@ -1054,7 +1054,11 @@ H5_trace(const double *returning, const char *func, const char *type, ...)
                                     break;
 
                                 case H5F_LIBVER_V110:
-                                    HDcompile_assert(H5F_LIBVER_LATEST == H5F_LIBVER_V110);
+                                    HDfprintf(out, "H5F_LIBVER_V110");
+                                    break;
+
+                                case H5F_LIBVER_V112:
+                                    HDcompile_assert(H5F_LIBVER_LATEST == H5F_LIBVER_V112);
                                     HDfprintf(out, "H5F_LIBVER_LATEST");
                                     break;
 
diff --git a/test/dsets.c b/test/dsets.c
index ef3cf58..a317f14 100644
--- a/test/dsets.c
+++ b/test/dsets.c
@@ -12990,7 +12990,7 @@ test_versionbounds(void)
             if (vdset > 0) /* dataset created successfully */
             {
                 /* Virtual dataset is only available starting in V110 */
-                VERIFY(high, H5F_LIBVER_V110, "virtual dataset");
+                VERIFY(high >= H5F_LIBVER_V110, TRUE, "virtual dataset");
 
                 if(H5Dclose(vdset) < 0) TEST_ERROR
                 vdset = -1;
diff --git a/test/h5test.c b/test/h5test.c
index bc3f2fa..8634a4d 100644
--- a/test/h5test.c
+++ b/test/h5test.c
@@ -100,6 +100,17 @@ static const char *multi_letters = "msbrglo";
 /* The # of seconds to wait for the message file--used by h5_wait_message() */
 #define MESSAGE_TIMEOUT         300             /* Timeout in seconds */
 
+/*  The strings that correspond to library version bounds H5F_libver_t in H5Fpublic.h */
+/*  This is used by h5_get_version_string() */
+const char *LIBVER_NAMES[] = {
+    "earliest", /* H5F_LIBVER_EARLIEST = 0  */
+    "v18",      /* H5F_LIBVER_V18 = 1       */
+    "v110",     /* H5F_LIBVER_V110 = 2      */
+    "latest",   /* H5F_LIBVER_V112 = 3      */
+    NULL
+};
+
+
 /* Previous error reporting function */
 static H5E_auto2_t err_func = NULL;
 
@@ -1940,3 +1951,17 @@ error:
     return NULL;
 } /* h5_get_dummy_vol_class */
 
+/*-------------------------------------------------------------------------
+ * Function:    h5_get_version_string
+ *
+ * Purpose:     Get the string that corresponds to the libvery version bound.
+ *
+ * Return:      The string
+ * 
+ *-------------------------------------------------------------------------
+ */
+char *
+h5_get_version_string(H5F_libver_t libver)
+{
+    return(LIBVER_NAMES[libver]);
+} /* end of h5_get_version_string */
diff --git a/test/h5test.h b/test/h5test.h
index 8c3ce6b..ada52ad 100644
--- a/test/h5test.h
+++ b/test/h5test.h
@@ -148,6 +148,7 @@ H5TEST_DLL int h5_make_local_copy(const char *origfilename, const char *local_co
 H5TEST_DLL herr_t h5_verify_cached_stabs(const char *base_name[], hid_t fapl);
 H5TEST_DLL H5FD_class_t *h5_get_dummy_vfd_class(void);
 H5TEST_DLL H5VL_class_t *h5_get_dummy_vol_class(void);
+H5TEST_DLL char *h5_get_version_string(H5F_libver_t libver);
 
 /* Functions that will replace components of a FAPL */
 H5TEST_DLL herr_t h5_get_vfd_fapl(hid_t fapl_id);
diff --git a/test/ohdr.c b/test/ohdr.c
index b8f7112..9fc5791 100644
--- a/test/ohdr.c
+++ b/test/ohdr.c
@@ -1627,45 +1627,6 @@ error:
     return FAIL;
 } /* test_minimized_dset_ohdr_fillvalue_backwards_compatability */
 
-#define STR_EARLIEST "earliest"
-#define STR_V18 "v18"
-#define STR_LATEST "latest"
-static char *
-version_string(H5F_libver_t libver)
-{
-    char *str = NULL;
-
-    str = (char *) HDmalloc(20);
-    if (str == NULL) {
-        HDfprintf(stderr, "Allocation failed\n");
-        HDexit(1);
-    }
-
-    switch(libver) {
-      case H5F_LIBVER_EARLIEST:
-          HDstrcpy(str, STR_EARLIEST);
-          break;
-
-      case H5F_LIBVER_V18:
-          HDstrcpy(str, STR_V18);
-          break;
-
-      case H5F_LIBVER_V110:
-          HDassert(H5F_LIBVER_LATEST == H5F_LIBVER_V110);
-          HDstrcpy(str, STR_LATEST);
-          break;
-
-      case H5F_LIBVER_ERROR:
-      case H5F_LIBVER_NBOUNDS:
-      default:
-          HDsprintf(str, "%ld", (long)libver);
-          break;
-    } /* end switch */
-
-    /* Return the formed version bound string */
-    return str;
-} /* end version_string() */
-
 
 /*-------------------------------------------------------------------------
  * Function:    main
@@ -1693,7 +1654,6 @@ main(void)
     H5O_loc_t      oh_loc;    /* Object header locations */
     H5F_libver_t low, high;   /* File format bounds */
     time_t time_new, ro;
-    char msg[80];             /* Message for file format version */
     int    i;                 /* Local index variable */
     hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
     herr_t ret;               /* Generic return value */
@@ -1718,8 +1678,9 @@ main(void)
     /* Loop through all the combinations of low/high library format bounds */
     for(low = H5F_LIBVER_EARLIEST; low < H5F_LIBVER_NBOUNDS; H5_INC_ENUM(H5F_libver_t, low)) {
       for(high = H5F_LIBVER_EARLIEST; high < H5F_LIBVER_NBOUNDS; H5_INC_ENUM(H5F_libver_t, high)) {
-        char *low_string = NULL;
-        char *high_string = NULL;
+        char *low_string = NULL;    /* Message for library version low bound */
+        char *high_string = NULL;   /* Message for library version high bound */
+        char msg[80];               /* Message for file format version */
 
         /* Set version bounds before opening the file */
         H5E_BEGIN_TRY {
@@ -1730,13 +1691,11 @@ main(void)
             continue;
 
         /* Display info about testing */
-        low_string = version_string(low);
-        high_string = version_string(high);
+        low_string = h5_get_version_string(low);
+        high_string = h5_get_version_string(high);
         sprintf(msg, "Using file format version: (%s, %s)", low_string,
                 high_string);
         HDputs(msg);
-        HDfree(high_string);
-        HDfree(low_string);
 
         /* test on object continuation block */
         if(test_cont(filename, fapl) < 0)
diff --git a/test/tfile.c b/test/tfile.c
index e3ff372..430bc85 100644
--- a/test/tfile.c
+++ b/test/tfile.c
@@ -5167,7 +5167,7 @@ test_libver_bounds_open(void)
         /* Get new low bound and verify that it has been upgraded properly */
         ret = H5Pget_libver_bounds(new_fapl, &new_low, NULL);
         CHECK(ret, FAIL, "H5Pget_libver_bounds");
-        VERIFY(new_low, H5F_LIBVER_LATEST, "Low bound should be upgraded to H5F_LIBVER_LATEST");
+        VERIFY(new_low >= H5F_LIBVER_V110, TRUE, "Low bound should be upgraded to at least H5F_LIBVER_V110");
 
         ret = H5Pclose(new_fapl);
         CHECK(ret, FAIL, "H5Pclose");
@@ -5445,7 +5445,7 @@ test_libver_bounds_super_create(hid_t fapl, hid_t fcpl, htri_t is_swmr)
     } H5E_END_TRY;
 
     /* Get the internal file pointer if the create succeeds */
-    if((ok = fid >= 0)) {
+    if(fid >= 0) {
         f = (H5F_t *)H5VL_object(fid);
         CHECK(f, NULL, "H5VL_object");
     }
@@ -5456,34 +5456,35 @@ test_libver_bounds_super_create(hid_t fapl, hid_t fcpl, htri_t is_swmr)
 
     if(is_swmr) { /* SWMR is enabled */
 
-        if(high == H5F_LIBVER_LATEST) { /* Should succeed */
-            VERIFY(ok, TRUE, "H5Fcreate");
+        if(high >= H5F_LIBVER_V110) { /* Should succeed */
+            VERIFY(fid >= 0, TRUE, "H5Fcreate");
             VERIFY(HDF5_SUPERBLOCK_VERSION_3, f->shared->sblock->super_vers, "HDF5_superblock_ver_bounds");
-            VERIFY(H5F_LIBVER_V110, f->shared->low_bound, "HDF5_superblock_ver_bounds");
+            VERIFY(f->shared->low_bound >= H5F_LIBVER_V110, TRUE, "HDF5_superblock_ver_bounds");
 
         } else /* Should fail */
-            VERIFY(ok, FALSE, "H5Fcreate");
+            VERIFY(fid >= 0, FALSE, "H5Fcreate");
 
     }
     else { /* Should succeed */
-        VERIFY(ok, TRUE, "H5Fcreate");
+        VERIFY(fid >= 0, TRUE, "H5Fcreate");
         VERIFY(low, f->shared->low_bound, "HDF5_superblock_ver_bounds");
 
         switch(low) {
             case H5F_LIBVER_EARLIEST:
-                ok = (f->shared->sblock->super_vers == 0 ||
-                      f->shared->sblock->super_vers == 1 ||
-                      f->shared->sblock->super_vers == 2);
+                ok = (f->shared->sblock->super_vers == HDF5_SUPERBLOCK_VERSION_DEF  ||
+                      f->shared->sblock->super_vers == HDF5_SUPERBLOCK_VERSION_1 ||
+                      f->shared->sblock->super_vers == HDF5_SUPERBLOCK_VERSION_2);
                 VERIFY(ok, TRUE, "HDF5_superblock_ver_bounds");
                 break;
 
             case H5F_LIBVER_V18:
-                ok = (f->shared->sblock->super_vers == 2);
+                ok = (f->shared->sblock->super_vers == HDF5_SUPERBLOCK_VERSION_2);
                 VERIFY(ok, TRUE, "HDF5_superblock_ver_bounds");
                 break;
 
             case H5F_LIBVER_V110:
-                ok = (f->shared->sblock->super_vers == 3);
+            case H5F_LIBVER_V112:
+                ok = (f->shared->sblock->super_vers == HDF5_SUPERBLOCK_VERSION_3);
                 VERIFY(ok, TRUE, "HDF5_superblock_ver_bounds");
                 break;
 
@@ -5495,7 +5496,7 @@ test_libver_bounds_super_create(hid_t fapl, hid_t fcpl, htri_t is_swmr)
         } /* end switch */
     }
 
-    if(ok) { /* Close the file */
+    if(fid >= 0) { /* Close the file */
         ret = H5Fclose(fid);
         CHECK(ret, FAIL, "H5Fclose");
     }
@@ -5587,7 +5588,6 @@ test_libver_bounds_super_open(hid_t fapl, hid_t fcpl, htri_t is_swmr)
     hid_t new_fapl = -1;    /* File access property list */
     unsigned super_vers;    /* Superblock version */
     H5F_libver_t low, high; /* Low and high bounds */
-    hbool_t ok;                /* The result is ok or not */
     herr_t ret;                /* Return value */
 
     /* Create the file with the input fcpl and fapl */
@@ -5626,7 +5626,7 @@ test_libver_bounds_super_open(hid_t fapl, hid_t fcpl, htri_t is_swmr)
             } H5E_END_TRY;
 
             /* Get the internal file pointer if the open succeeds */
-            if((ok = fid >= 0)) {
+            if(fid >= 0) {
                 f = (H5F_t *)H5VL_object(fid);
                 CHECK(f, NULL, "H5VL_object");
             }
@@ -5634,26 +5634,24 @@ test_libver_bounds_super_open(hid_t fapl, hid_t fcpl, htri_t is_swmr)
             /* Verify the file open succeeds or fails */
             switch(super_vers) {
                 case 3:
-                    if(high == H5F_LIBVER_LATEST) {
+                    if(high >= H5F_LIBVER_V110) {
                         /* Should succeed */
-                        VERIFY(ok, TRUE, "H5Fopen");
-                        VERIFY(H5F_LIBVER_V110, f->shared->low_bound, "HDF5_superblock_ver_bounds");
+                        VERIFY(fid >= 0, TRUE, "H5Fopen");
+                        VERIFY(f->shared->low_bound >= H5F_LIBVER_V110, TRUE, "HDF5_superblock_ver_bounds");
 
                         /* Close the file */
                         ret = H5Fclose(fid);
                         CHECK(ret, FAIL, "H5Fclose");
                     } else /* Should fail */
-                        VERIFY(ok, FALSE, "H5Fopen");
+                        VERIFY(fid >= 0, FALSE, "H5Fopen");
                     break;
 
                 case 2:
                     if(is_swmr)  /* Should fail */
-                        VERIFY(ok, FALSE, "H5Fopen");
+                        VERIFY(fid >= 0, FALSE, "H5Fopen");
                     else { /* Should succeed */
-                        VERIFY(ok, TRUE, "H5Fopen");
-
-                        ok = f->shared->low_bound >= H5F_LIBVER_V18;
-                        VERIFY(ok, TRUE, "HDF5_superblock_ver_bounds");
+                        VERIFY(fid >= 0, TRUE, "H5Fopen");
+                        VERIFY(f->shared->low_bound >= H5F_LIBVER_V18, TRUE, "HDF5_superblock_ver_bounds");
 
                         /* Close the file */
                         ret = H5Fclose(fid);
@@ -5664,10 +5662,10 @@ test_libver_bounds_super_open(hid_t fapl, hid_t fcpl, htri_t is_swmr)
                 case 1:
                 case 0:
                     if(is_swmr)  /* Should fail */
-                        VERIFY(ok, FALSE, "H5Fopen");
+                        VERIFY(fid >= 0, FALSE, "H5Fopen");
                     else { /* Should succeed */
-                        VERIFY(ok, TRUE, "H5Fopen");
-                        VERIFY(low, f->shared->low_bound, "HDF5_superblock_ver_bounds");
+                        VERIFY(fid >= 0, TRUE, "H5Fopen");
+                        VERIFY(f->shared->low_bound, low, "HDF5_superblock_ver_bounds");
 
                         ret = H5Fclose(fid);
                         CHECK(ret, FAIL, "H5Fclose");
diff --git a/test/trefer.c b/test/trefer.c
index 4f76cb3..938f040 100644
--- a/test/trefer.c
+++ b/test/trefer.c
@@ -492,41 +492,42 @@ test_reference_obj(void)
 **
 ****************************************************************/
 static void
-test_reference_region(void)
+test_reference_region(H5F_libver_t libver_low, H5F_libver_t libver_high)
 {
-    hid_t    fid1;        /* HDF5 File IDs        */
-    hid_t    dset1,        /* Dataset ID            */
-                dset2;        /* Dereferenced dataset ID */
-    hid_t    sid1,        /* Dataspace ID    #1        */
-                sid2;        /* Dataspace ID    #2        */
-    hid_t       dapl_id;        /* Dataset access property list */
-    hsize_t    dims1[] = {SPACE1_DIM1},
-                dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
-    hsize_t    start[SPACE2_RANK];     /* Starting location of hyperslab */
-    hsize_t    stride[SPACE2_RANK];    /* Stride of hyperslab */
-    hsize_t    count[SPACE2_RANK];     /* Element count of hyperslab */
-    hsize_t    block[SPACE2_RANK];     /* Block size of hyperslab */
-    hsize_t    coord1[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
-    hsize_t *   coords;            /* Coordinate buffer */
-    hsize_t    low[SPACE2_RANK];    /* Selection bounds */
-    hsize_t    high[SPACE2_RANK];    /* Selection bounds */
-    hdset_reg_ref_t      *wbuf,        /* buffer to write to disk */
-               *rbuf;       /* buffer read from disk */
-    hdset_reg_ref_t  nvrbuf[3]={{0},{101},{255}}; /* buffer with non-valid refs */
-    uint8_t    *dwbuf,      /* Buffer for writing numeric data to disk */
-               *drbuf;      /* Buffer for reading numeric data from disk */
-    uint8_t    *tu8;        /* Temporary pointer to uint8 data */
-    H5O_type_t  obj_type;       /* Type of object */
-    int        i, j;           /* counting variables */
-    hssize_t    hssize_ret;     /* hssize_t return value */
-    htri_t      tri_ret;        /* htri_t return value */
-    herr_t    ret;        /* Generic return value        */
-    haddr_t     addr = HADDR_UNDEF; /* test for undefined reference */
-    hid_t dset_NA;   /* Dataset id for undefined reference */
-    hid_t space_NA; /* Dataspace id for undefined reference */
-    hsize_t             dims_NA[1] = {1};  /* Dims array for undefined reference */
-    hdset_reg_ref_t     wdata_NA[1],       /* Write buffer */
-                        rdata_NA[1];       /* Read buffer */
+    hid_t fid1;         /* HDF5 File IDs        */
+    hid_t fapl = -1;    /* File access property list */
+    hid_t dset1,        /* Dataset ID            */
+          dset2;        /* Dereferenced dataset ID */
+    hid_t sid1,         /* Dataspace ID    #1        */
+          sid2;         /* Dataspace ID    #2        */
+    hid_t dapl_id;      /* Dataset access property list */
+    hsize_t dims1[] = {SPACE1_DIM1},
+            dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
+    hsize_t start[SPACE2_RANK];     /* Starting location of hyperslab */
+    hsize_t stride[SPACE2_RANK];    /* Stride of hyperslab */
+    hsize_t count[SPACE2_RANK];     /* Element count of hyperslab */
+    hsize_t block[SPACE2_RANK];     /* Block size of hyperslab */
+    hsize_t coord1[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
+    hsize_t *coords;                /* Coordinate buffer */
+    hsize_t low[SPACE2_RANK];       /* Selection bounds */
+    hsize_t high[SPACE2_RANK];      /* Selection bounds */
+    hdset_reg_ref_t *wbuf,          /* buffer to write to disk */
+                    *rbuf;          /* buffer read from disk */
+    hdset_reg_ref_t nvrbuf[3]={{0},{101},{255}}; /* buffer with non-valid refs */
+    uint8_t *dwbuf,                 /* Buffer for writing numeric data to disk */
+            *drbuf;                 /* Buffer for reading numeric data from disk */
+    uint8_t *tu8;                   /* Temporary pointer to uint8 data */
+    H5O_type_t obj_type;            /* Type of object */
+    int i, j;                       /* counting variables */
+    hssize_t hssize_ret;            /* hssize_t return value */
+    htri_t tri_ret;                 /* htri_t return value */
+    herr_t ret;                     /* Generic return value        */
+    haddr_t addr = HADDR_UNDEF;     /* test for undefined reference */
+    hid_t dset_NA;                  /* Dataset id for undefined reference */
+    hid_t space_NA;                 /* Dataspace id for undefined reference */
+    hsize_t dims_NA[1] = {1};       /* Dims array for undefined reference */
+    hdset_reg_ref_t wdata_NA[1],    /* Write buffer */
+                    rdata_NA[1];    /* Read buffer */
 
     /* Output message about test being performed */
     MESSAGE(5, ("Testing Dataset Region Reference Functions\n"));
@@ -537,8 +538,16 @@ test_reference_region(void)
     dwbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
     drbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
 
-    /* Create file */
-    fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+    /* Create file access property list */
+    fapl = H5Pcreate(H5P_FILE_ACCESS);
+    CHECK(fapl, FAIL, "H5Pcreate");
+
+    /* Set the low/high version bounds in fapl */
+    ret = H5Pset_libver_bounds(fapl, libver_low, libver_high);
+    CHECK(ret, FAIL, "H5Pset_libver_bounds");
+
+    /* Create file with the fapl */
+    fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
     CHECK(fid1, FAIL, "H5Fcreate");
 
     /* Create dataspace for datasets */
@@ -627,6 +636,7 @@ test_reference_region(void)
     /* Store third dataset region */
     ret = H5Rcreate(&wbuf[2], fid1, "/Dataset2", H5R_DATASET_REGION, sid2);
     CHECK(ret, FAIL, "H5Rcreate");
+
     ret = H5Rget_obj_type2(dset1, H5R_DATASET_REGION, &wbuf[0], &obj_type);
     CHECK(ret, FAIL, "H5Rget_obj_type2");
     VERIFY(obj_type, H5O_TYPE_DATASET, "H5Rget_obj_type2");
@@ -677,7 +687,7 @@ test_reference_region(void)
     CHECK(ret, FAIL, "H5Fclose");
 
     /* Re-open the file */
-    fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+    fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, fapl);
     CHECK(fid1, FAIL, "H5Fopen");
 
     /*
@@ -822,30 +832,32 @@ test_reference_region(void)
     ret = H5Sclose(sid2);
     CHECK(ret, FAIL, "H5Sclose");
 
-    /* Get the unlimited selection */
-    sid2 = H5Rget_region(dset1, H5R_DATASET_REGION, &rbuf[2]);
-    CHECK(sid2, FAIL, "H5Rget_region");
-
-    /* Verify correct hyperslab selected */
-    hssize_ret = H5Sget_select_npoints(sid2);
-    VERIFY(hssize_ret, (hssize_t)H5S_UNLIMITED, "H5Sget_select_npoints");
-    tri_ret = H5Sis_regular_hyperslab(sid2);
-    CHECK(tri_ret, FAIL, "H5Sis_regular_hyperslab");
-    VERIFY(tri_ret, TRUE, "H5Sis_regular_hyperslab Result");
-    ret = H5Sget_regular_hyperslab(sid2, start, stride, count, block);
-    CHECK(ret, FAIL, "H5Sget_regular_hyperslab");
-    VERIFY(start[0], (hsize_t)1, "Hyperslab Coordinates");
-    VERIFY(start[1], (hsize_t)8, "Hyperslab Coordinates");
-    VERIFY(stride[0], (hsize_t)4, "Hyperslab Coordinates");
-    VERIFY(stride[1], (hsize_t)1, "Hyperslab Coordinates");
-    VERIFY(count[0], H5S_UNLIMITED, "Hyperslab Coordinates");
-    VERIFY(count[1], (hsize_t)1, "Hyperslab Coordinates");
-    VERIFY(block[0], (hsize_t)2, "Hyperslab Coordinates");
-    VERIFY(block[1], (hsize_t)2, "Hyperslab Coordinates");
-
-    /* Close region space */
-    ret = H5Sclose(sid2);
-    CHECK(ret, FAIL, "H5Sclose");
+    if(libver_high >= H5F_LIBVER_V110) {
+        /* Get the unlimited selection */
+        sid2 = H5Rget_region(dset1, H5R_DATASET_REGION, &rbuf[2]);
+        CHECK(sid2, FAIL, "H5Rget_region");
+
+        /* Verify correct hyperslab selected */
+        hssize_ret = H5Sget_select_npoints(sid2);
+        VERIFY(hssize_ret, (hssize_t)H5S_UNLIMITED, "H5Sget_select_npoints");
+        tri_ret = H5Sis_regular_hyperslab(sid2);
+        CHECK(tri_ret, FAIL, "H5Sis_regular_hyperslab");
+        VERIFY(tri_ret, TRUE, "H5Sis_regular_hyperslab Result");
+        ret = H5Sget_regular_hyperslab(sid2, start, stride, count, block);
+        CHECK(ret, FAIL, "H5Sget_regular_hyperslab");
+        VERIFY(start[0], (hsize_t)1, "Hyperslab Coordinates");
+        VERIFY(start[1], (hsize_t)8, "Hyperslab Coordinates");
+        VERIFY(stride[0], (hsize_t)4, "Hyperslab Coordinates");
+        VERIFY(stride[1], (hsize_t)1, "Hyperslab Coordinates");
+        VERIFY(count[0], H5S_UNLIMITED, "Hyperslab Coordinates");
+        VERIFY(count[1], (hsize_t)1, "Hyperslab Coordinates");
+        VERIFY(block[0], (hsize_t)2, "Hyperslab Coordinates");
+        VERIFY(block[1], (hsize_t)2, "Hyperslab Coordinates");
+
+        /* Close region space */
+        ret = H5Sclose(sid2);
+        CHECK(ret, FAIL, "H5Sclose");
+    }
 
     /* Close first space */
     ret = H5Sclose(sid1);
@@ -887,34 +899,39 @@ test_reference_region(void)
 **  test_reference_region_1D(): Test H5R (reference) object reference code.
 **      Tests 1-D references to various kinds of objects
 **
+**  Note: The libver_low/libver_high parameters are added to create the file
+**        with the low and high bounds setting in fapl.
+**        Please see the RFC for "H5Sencode/H5Sdecode Format Change".
+**
 ****************************************************************/
 static void
-test_reference_region_1D(void)
+test_reference_region_1D(H5F_libver_t libver_low, H5F_libver_t libver_high)
 {
-    hid_t    fid1;           /* HDF5 File IDs        */
-    hid_t    dset1,          /* Dataset ID            */
-                dset3;          /* Dereferenced dataset ID */
-    hid_t    sid1,           /* Dataspace ID    #1        */
-                sid3;           /* Dataspace ID    #3        */
-    hid_t       dapl_id;        /* Dataset access property list */
-    hsize_t    dims1[] = {SPACE1_DIM1},
-                dims3[] = {SPACE3_DIM1};
-    hsize_t    start[SPACE3_RANK];     /* Starting location of hyperslab */
-    hsize_t    stride[SPACE3_RANK];    /* Stride of hyperslab */
-    hsize_t    count[SPACE3_RANK];     /* Element count of hyperslab */
-    hsize_t    block[SPACE3_RANK];     /* Block size of hyperslab */
-    hsize_t    coord1[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
-    hsize_t *   coords;                 /* Coordinate buffer */
-    hsize_t    low[SPACE3_RANK];       /* Selection bounds */
-    hsize_t    high[SPACE3_RANK];      /* Selection bounds */
-    hdset_reg_ref_t      *wbuf,         /* buffer to write to disk */
-               *rbuf;   /* buffer read from disk */
-    uint8_t    *dwbuf,  /* Buffer for writing numeric data to disk */
-               *drbuf;  /* Buffer for reading numeric data from disk */
-    uint8_t    *tu8;    /* Temporary pointer to uint8 data */
-    H5O_type_t  obj_type;       /* Object type */
-    int         i;      /* counting variables */
-    herr_t    ret;    /* Generic return value        */
+    hid_t fid1;        /* HDF5 File IDs        */
+    hid_t fapl = -1;    /* File access property list */
+    hid_t dset1,        /* Dataset ID            */
+          dset3;        /* Dereferenced dataset ID */
+    hid_t sid1,         /* Dataspace ID    #1        */
+          sid3;         /* Dataspace ID    #3        */
+    hid_t dapl_id;      /* Dataset access property list */
+    hsize_t dims1[] = {SPACE1_DIM1},
+            dims3[] = {SPACE3_DIM1};
+    hsize_t start[SPACE3_RANK];     /* Starting location of hyperslab */
+    hsize_t stride[SPACE3_RANK];    /* Stride of hyperslab */
+    hsize_t count[SPACE3_RANK];     /* Element count of hyperslab */
+    hsize_t block[SPACE3_RANK];     /* Block size of hyperslab */
+    hsize_t coord1[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
+    hsize_t *coords;                /* Coordinate buffer */
+    hsize_t low[SPACE3_RANK];       /* Selection bounds */
+    hsize_t high[SPACE3_RANK];      /* Selection bounds */
+    hdset_reg_ref_t *wbuf,          /* buffer to write to disk */
+                    *rbuf;          /* buffer read from disk */
+    uint8_t *dwbuf,  /* Buffer for writing numeric data to disk */
+            *drbuf;  /* Buffer for reading numeric data from disk */
+    uint8_t *tu8;    /* Temporary pointer to uint8 data */
+    H5O_type_t obj_type;            /* Object type */
+    int i;          /* counting variables */
+    herr_t ret;     /* Generic return value        */
 
     /* Output message about test being performed */
     MESSAGE(5, ("Testing 1-D Dataset Region Reference Functions\n"));
@@ -925,8 +942,16 @@ test_reference_region_1D(void)
     dwbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE3_DIM1);
     drbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)SPACE3_DIM1);
 
-    /* Create file */
-    fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+    /* Create the file access property list */
+    fapl = H5Pcreate(H5P_FILE_ACCESS);
+    CHECK(fapl, FAIL, "H5Pcreate");
+
+    /* Set the low/high version bounds in fapl */
+    ret = H5Pset_libver_bounds(fapl, libver_low, libver_high);
+    CHECK(ret, FAIL, "H5Pset_libver_bounds");
+
+    /* Create file with the fapl */
+    fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
     CHECK(fid1, FAIL, "H5Fcreate");
 
     /* Create dataspace for datasets */
@@ -1022,7 +1047,7 @@ test_reference_region_1D(void)
     CHECK(ret, FAIL, "H5Fclose");
 
     /* Re-open the file */
-    fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+    fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, fapl);
     CHECK(fid1, FAIL, "H5Fopen");
 
     /* Open the dataset */
@@ -1156,6 +1181,10 @@ test_reference_region_1D(void)
     ret = H5Pclose(dapl_id);
     CHECK(ret, FAIL, "H5Pclose");
 
+    /* Close file access property list */
+    ret = H5Pclose(fapl);
+    CHECK(ret, FAIL, "H5Pclose");
+
     /* Close file */
     ret = H5Fclose(fid1);
     CHECK(ret, FAIL, "H5Fclose");
@@ -1733,13 +1762,28 @@ test_reference_compat(void)
 void
 test_reference(void)
 {
+    H5F_libver_t low, high;     /* Low and high bounds */
+
     /* Output message about test being performed */
     MESSAGE(5, ("Testing References\n"));
 
     test_reference_params();    /* Test for correct parameter checking */
     test_reference_obj();       /* Test basic H5R object reference code */
-    test_reference_region();    /* Test basic H5R dataset region reference code */
-    test_reference_region_1D(); /* Test H5R dataset region reference code for 1-D datasets */
+
+    /* Loop through all the combinations of low/high version bounds */
+    for(low = H5F_LIBVER_EARLIEST; low < H5F_LIBVER_NBOUNDS; low++) {
+        for(high = H5F_LIBVER_EARLIEST; high < H5F_LIBVER_NBOUNDS; high++) {
+
+            /* Invalid combinations, just continue */
+            if(high == H5F_LIBVER_EARLIEST || high < low)
+                continue;
+
+            test_reference_region(low, high);       /* Test basic H5R dataset region reference code */
+            test_reference_region_1D(low, high);    /* Test H5R dataset region reference code for 1-D datasets */
+
+        } /* end high bound */
+    } /* end low bound */
+
     test_reference_obj_deleted(); /* Test H5R object reference code for deleted objects */
     test_reference_group();     /* Test operations on dereferenced groups */
 #ifndef H5_NO_DEPRECATED_SYMBOLS