diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4f99316..420bfc1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Notes:
 #
 # Author: Paul Harris, June 2012
-# Additions: Joakim Soderberg, Febuary 2013
+# Additions: Joakim Soderberg, February 2013
 #
 # Supports: building static/shared, release/debug/etc, can also build html docs
 # and some of the tests.
@@ -35,7 +35,7 @@
 # >> make test (to run the tests, if you enabled them)
 #
 # Brief description on how it works:
-# There is a small heirachy of CMakeLists.txt files which define how the
+# There is a small hierarchy of CMakeLists.txt files which define how the
 # project is built.
 # Header file detection etc is done, and the results are written into config.h
 # and jansson_config.h, which are generated from the corresponding
@@ -100,7 +100,7 @@ include (CheckFunctionKeywords)
 include (CheckIncludeFiles)
 include (CheckTypeSize)
 
-# supress format-truncation warning
+# suppress format-truncation warning
 include (CheckCCompilerFlag)
 check_c_compiler_flag(-Wno-format-truncation HAS_NO_FORMAT_TRUNCATION)
 if (HAS_NO_FORMAT_TRUNCATION)
@@ -215,7 +215,7 @@ else ()
    set (JSON_UINT8 "unsigned char")
 endif ()
 
-# Check for ssize_t and SSIZE_T existance.
+# Check for ssize_t and SSIZE_T existence.
 check_type_size(ssize_t SSIZE_T)
 check_type_size(SSIZE_T UPPERCASE_SSIZE_T)
 if(NOT HAVE_SSIZE_T)
diff --git a/README.rst b/README.rst
index 371e913..9570b8f 100644
--- a/README.rst
+++ b/README.rst
@@ -30,6 +30,18 @@ source distribution for details.
 Compilation and Installation
 ----------------------------
 
+You can download and install Jansson using the `vcpkg <https://github.com/Microsoft/vcpkg/>`_ dependency manager:
+
+.. code-block:: bash
+
+    git clone https://github.com/Microsoft/vcpkg.git
+    cd vcpkg
+    ./bootstrap-vcpkg.sh
+    ./vcpkg integrate install
+    vcpkg install jansson
+
+The Jansson port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please `create an issue or pull request <https://github.com/Microsoft/vcpkg/>`_ on the vcpkg repository.
+
 If you obtained a `source tarball`_ from the "Releases" section of the main
 site just use the standard autotools commands::
 
diff --git a/cmake/CoverallsGenerateGcov.cmake b/cmake/CoverallsGenerateGcov.cmake
index 0c4c2b0..c4da8fb 100644
--- a/cmake/CoverallsGenerateGcov.cmake
+++ b/cmake/CoverallsGenerateGcov.cmake
@@ -102,8 +102,8 @@ if (GIT_FOUND)
 	message("Git branch: ${GIT_BRANCH}")
 	message("Git author: ${GIT_AUTHOR_NAME}")
 	message("Git e-mail: ${GIT_AUTHOR_EMAIL}")
-	message("Git commiter name: ${GIT_COMMITTER_NAME}")
-	message("Git commiter e-mail: ${GIT_COMMITTER_EMAIL}")
+	message("Git committer name: ${GIT_COMMITTER_NAME}")
+	message("Git committer e-mail: ${GIT_COMMITTER_EMAIL}")
 	message("Git commit message: ${GIT_COMMIT_MESSAGE}")
 
 endif()
@@ -265,7 +265,7 @@ foreach (GCOV_FILE ${GCOV_FILES})
 	# Instead of trying to parse the source from the
 	# gcov file, simply read the file contents from the source file.
 	# (Parsing it from the gcov is hard because C-code uses ; in many places
-	#  which also happens to be the same as the CMake list delimeter).
+	#  which also happens to be the same as the CMake list delimiter).
 	file(READ ${GCOV_SRC_PATH} GCOV_FILE_SOURCE)
 
 	string(REPLACE "\\" "\\\\" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
diff --git a/cmake/FindSphinx.cmake b/cmake/FindSphinx.cmake
index 55539d4..3bf0a5d 100644
--- a/cmake/FindSphinx.cmake
+++ b/cmake/FindSphinx.cmake
@@ -241,27 +241,42 @@ endif ()
 
 # ----------------------------------------------------------------------------
 # determine Sphinx version
+# some quick experiments by @ploxiln
+# - sphinx 1.7 and later have the version output format like "sphinx-build 1.7.2"
+# - sphinx 1.2 through 1.6 have the version output format like "Sphinx (sphinx-build) 1.2.2"
+# - sphinx 1.1 and before do not have a "--version" flag, but it causes the help output like "-h" does which includes version like "Sphinx v1.0.2"
 if (Sphinx-build_EXECUTABLE)
   # intentionally use invalid -h option here as the help that is shown then
   # will include the Sphinx version information
   if (Sphinx_PYTHON_EXECUTABLE)
     execute_process (
-      COMMAND "${Sphinx_PYTHON_EXECUTABLE}" ${Sphinx_PYTHON_OPTIONS} "${Sphinx-build_EXECUTABLE}" -h
+      COMMAND "${Sphinx_PYTHON_EXECUTABLE}" ${Sphinx_PYTHON_OPTIONS} "${Sphinx-build_EXECUTABLE}" --version
       OUTPUT_VARIABLE _Sphinx_VERSION
       ERROR_VARIABLE  _Sphinx_VERSION
     )
   elseif (UNIX)
     execute_process (
-      COMMAND "${Sphinx-build_EXECUTABLE}" -h
+      COMMAND "${Sphinx-build_EXECUTABLE}" --version
       OUTPUT_VARIABLE _Sphinx_VERSION
       ERROR_VARIABLE  _Sphinx_VERSION
     )
   endif ()
 
   # The sphinx version can also contain a "b" instead of the last dot.
-  # For example "Sphinx v1.2b1" so we cannot just split on "."
-  if (_Sphinx_VERSION MATCHES "Sphinx v([0-9]+\\.[0-9]+(\\.|b)[0-9]+)")
+  # For example "Sphinx v1.2b1" or "Sphinx 1.7.0b2" so we cannot just split on "."
+  if (_Sphinx_VERSION MATCHES "sphinx-build ([0-9]+\\.[0-9]+(\\.|a?|b?)([0-9]*)(b?)([0-9]*))")
     set (Sphinx_VERSION_STRING "${CMAKE_MATCH_1}")
+    set (_SPHINX_VERSION_FOUND)
+  elseif (_Sphinx_VERSION MATCHES "Sphinx v([0-9]+\\.[0-9]+(\\.|b?)([0-9]*)(b?)([0-9]*))")
+    set (Sphinx_VERSION_STRING "${CMAKE_MATCH_1}")
+    set (_SPHINX_VERSION_FOUND)
+  elseif (_Sphinx_VERSION MATCHES "Sphinx \\(sphinx-build\\) ([0-9]+\\.[0-9]+(\\.|a?|b?)([0-9]*)(b?)([0-9]*))")
+    set (Sphinx_VERSION_STRING "${CMAKE_MATCH_1}")
+    set (_SPHINX_VERSION_FOUND)
+  endif ()
+endif ()
+
+if(_SPHINX_VERSION_FOUND)
     string(REGEX REPLACE "([0-9]+)\\.[0-9]+(\\.|b)[0-9]+" "\\1" Sphinx_VERSION_MAJOR ${Sphinx_VERSION_STRING})
     string(REGEX REPLACE "[0-9]+\\.([0-9]+)(\\.|b)[0-9]+" "\\1" Sphinx_VERSION_MINOR ${Sphinx_VERSION_STRING})
     string(REGEX REPLACE "[0-9]+\\.[0-9]+(\\.|b)([0-9]+)" "\\1" Sphinx_VERSION_PATCH ${Sphinx_VERSION_STRING})
@@ -270,7 +285,6 @@ if (Sphinx-build_EXECUTABLE)
     if (Sphinx_VERSION_PATCH EQUAL 0)
       string (REGEX REPLACE "\\.0$" "" Sphinx_VERSION_STRING "${Sphinx_VERSION_STRING}")
     endif ()
-  endif()
 endif ()
 
 # ----------------------------------------------------------------------------
diff --git a/doc/apiref.rst b/doc/apiref.rst
index 5d8d41b..16f1ecb 100644
--- a/doc/apiref.rst
+++ b/doc/apiref.rst
@@ -726,6 +726,12 @@ allowed in object keys.
    The value of any existing key is not changed. Returns 0 on success
    or -1 on error.
 
+.. function:: int json_object_update_recursive(json_t *object, json_t *other)
+
+   Like :func:`json_object_update()`, but object values in *other* are
+   recursively merged with the corresponding values in *object* if they are also
+   objects, instead of overwriting them. Returns 0 on success or -1 on error.
+
 .. function:: json_object_foreach(object, key, value)
 
    Iterate over every key-value pair of ``object``, running the block
@@ -1351,7 +1357,11 @@ If no error or position information is needed, you can pass *NULL*.
    It is important to note that this function can only succeed on stream
    file descriptors (such as SOCK_STREAM). Using this function on a
    non-stream file descriptor will result in undefined behavior. For
-   non-stream file descriptors, see instead :func:`json_loadb()`.
+   non-stream file descriptors, see instead :func:`json_loadb()`. In
+   addition, please note that this function cannot be used on non-blocking 
+   file descriptors (such as a non-blocking socket). Using this function 
+   on non-blocking file descriptors has a high risk of data loss because 
+   it does not support resuming.
 
    This function requires POSIX and fails on all non-POSIX systems.
 
diff --git a/doc/tutorial.rst b/doc/tutorial.rst
index 56861c2..bb7a6c2 100644
--- a/doc/tutorial.rst
+++ b/doc/tutorial.rst
@@ -74,7 +74,7 @@ function::
 
     static char *request(const char *url);
 
-It takes the URL as a parameter, preforms a HTTP GET request, and
+It takes the URL as a parameter, performs a HTTP GET request, and
 returns a newly allocated string that contains the response body. If
 the request fails, an error message is printed to stderr and the
 return value is *NULL*. For full details, refer to :download:`the code
diff --git a/src/hashtable.h b/src/hashtable.h
index c112834..00d44a9 100644
--- a/src/hashtable.h
+++ b/src/hashtable.h
@@ -55,7 +55,7 @@ typedef struct hashtable {
  *
  * Returns 0 on success, -1 on error (out of memory).
  */
-int hashtable_init(hashtable_t *hashtable) JANSSON_ATTRS(warn_unused_result);
+int hashtable_init(hashtable_t *hashtable) JANSSON_ATTRS((warn_unused_result));
 
 /**
  * hashtable_close - Release all resources used by a hashtable object
diff --git a/src/jansson.def b/src/jansson.def
index ed72829..55b39c8 100644
--- a/src/jansson.def
+++ b/src/jansson.def
@@ -41,6 +41,7 @@ EXPORTS
     json_object_update
     json_object_update_existing
     json_object_update_missing
+    json_object_update_recursive
     json_object_iter
     json_object_iter_at
     json_object_iter_next
diff --git a/src/jansson.h b/src/jansson.h
index 1aa3c2c..3436465 100644
--- a/src/jansson.h
+++ b/src/jansson.h
@@ -40,9 +40,9 @@ extern "C" {
 #endif
 
 #if defined(__GNUC__) || defined(__clang__)
-#define JANSSON_ATTRS(...) __attribute__((__VA_ARGS__))
+#define JANSSON_ATTRS(x) __attribute__(x)
 #else
-#define JANSSON_ATTRS(...)
+#define JANSSON_ATTRS(x)
 #endif
 
 /* types */
@@ -191,7 +191,7 @@ static JSON_INLINE enum json_error_code json_error_code(const json_error_t *e) {
 
 void json_object_seed(size_t seed);
 size_t json_object_size(const json_t *object);
-json_t *json_object_get(const json_t *object, const char *key) JANSSON_ATTRS(warn_unused_result);
+json_t *json_object_get(const json_t *object, const char *key) JANSSON_ATTRS((warn_unused_result));
 int json_object_set_new(json_t *object, const char *key, json_t *value);
 int json_object_set_new_nocheck(json_t *object, const char *key, json_t *value);
 int json_object_del(json_t *object, const char *key);
@@ -199,6 +199,7 @@ int json_object_clear(json_t *object);
 int json_object_update(json_t *object, json_t *other);
 int json_object_update_existing(json_t *object, json_t *other);
 int json_object_update_missing(json_t *object, json_t *other);
+int json_object_update_recursive(json_t *object, json_t *other);
 void *json_object_iter(json_t *object);
 void *json_object_iter_at(json_t *object, const char *key);
 void *json_object_key_to_iter(const char *key);
@@ -267,7 +268,7 @@ int json_object_update_missing_new(json_t *object, json_t *other)
 }
 
 size_t json_array_size(const json_t *array);
-json_t *json_array_get(const json_t *array, size_t index) JANSSON_ATTRS(warn_unused_result);
+json_t *json_array_get(const json_t *array, size_t index) JANSSON_ATTRS((warn_unused_result));
 int json_array_set_new(json_t *array, size_t index, json_t *value);
 int json_array_append_new(json_t *array, json_t *value);
 int json_array_insert_new(json_t *array, size_t index, json_t *value);
@@ -308,9 +309,9 @@ int json_real_set(json_t *real, double value);
 
 /* pack, unpack */
 
-json_t *json_pack(const char *fmt, ...) JANSSON_ATTRS(warn_unused_result);
-json_t *json_pack_ex(json_error_t *error, size_t flags, const char *fmt, ...) JANSSON_ATTRS(warn_unused_result);
-json_t *json_vpack_ex(json_error_t *error, size_t flags, const char *fmt, va_list ap) JANSSON_ATTRS(warn_unused_result);
+json_t *json_pack(const char *fmt, ...) JANSSON_ATTRS((warn_unused_result));
+json_t *json_pack_ex(json_error_t *error, size_t flags, const char *fmt, ...) JANSSON_ATTRS((warn_unused_result));
+json_t *json_vpack_ex(json_error_t *error, size_t flags, const char *fmt, va_list ap) JANSSON_ATTRS((warn_unused_result));
 
 #define JSON_VALIDATE_ONLY  0x1
 #define JSON_STRICT         0x2
@@ -321,8 +322,8 @@ int json_vunpack_ex(json_t *root, json_error_t *error, size_t flags, const char
 
 /* sprintf */
 
-json_t *json_sprintf(const char *fmt, ...) JANSSON_ATTRS(warn_unused_result, format(printf, 1, 2));
-json_t *json_vsprintf(const char *fmt, va_list ap) JANSSON_ATTRS(warn_unused_result, format(printf, 1, 0));
+json_t *json_sprintf(const char *fmt, ...) JANSSON_ATTRS((warn_unused_result, format(printf, 1, 2)));
+json_t *json_vsprintf(const char *fmt, va_list ap) JANSSON_ATTRS((warn_unused_result, format(printf, 1, 0)));
 
 
 /* equality */
@@ -332,8 +333,8 @@ int json_equal(const json_t *value1, const json_t *value2);
 
 /* copying */
 
-json_t *json_copy(json_t *value) JANSSON_ATTRS(warn_unused_result);
-json_t *json_deep_copy(const json_t *value) JANSSON_ATTRS(warn_unused_result);
+json_t *json_copy(json_t *value) JANSSON_ATTRS((warn_unused_result));
+json_t *json_deep_copy(const json_t *value) JANSSON_ATTRS((warn_unused_result));
 
 
 /* decoding */
@@ -346,12 +347,12 @@ json_t *json_deep_copy(const json_t *value) JANSSON_ATTRS(warn_unused_result);
 
 typedef size_t (*json_load_callback_t)(void *buffer, size_t buflen, void *data);
 
-json_t *json_loads(const char *input, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
-json_t *json_loadb(const char *buffer, size_t buflen, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
-json_t *json_loadf(FILE *input, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
-json_t *json_loadfd(int input, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
-json_t *json_load_file(const char *path, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
-json_t *json_load_callback(json_load_callback_t callback, void *data, size_t flags, json_error_t *error) JANSSON_ATTRS(warn_unused_result);
+json_t *json_loads(const char *input, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
+json_t *json_loadb(const char *buffer, size_t buflen, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
+json_t *json_loadf(FILE *input, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
+json_t *json_loadfd(int input, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
+json_t *json_load_file(const char *path, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
+json_t *json_load_callback(json_load_callback_t callback, void *data, size_t flags, json_error_t *error) JANSSON_ATTRS((warn_unused_result));
 
 
 /* encoding */
@@ -369,7 +370,7 @@ json_t *json_load_callback(json_load_callback_t callback, void *data, size_t fla
 
 typedef int (*json_dump_callback_t)(const char *buffer, size_t size, void *data);
 
-char *json_dumps(const json_t *json, size_t flags) JANSSON_ATTRS(warn_unused_result);
+char *json_dumps(const json_t *json, size_t flags) JANSSON_ATTRS((warn_unused_result));
 size_t json_dumpb(const json_t *json, char *buffer, size_t size, size_t flags);
 int json_dumpf(const json_t *json, FILE *output, size_t flags);
 int json_dumpfd(const json_t *json, int output, size_t flags);
diff --git a/src/jansson_private.h b/src/jansson_private.h
index c7ce11a..42882a8 100644
--- a/src/jansson_private.h
+++ b/src/jansson_private.h
@@ -84,11 +84,11 @@ int jsonp_strtod(strbuffer_t *strbuffer, double *out);
 int jsonp_dtostr(char *buffer, size_t size, double value, int prec);
 
 /* Wrappers for custom memory functions */
-void* jsonp_malloc(size_t size) JANSSON_ATTRS(warn_unused_result);
+void* jsonp_malloc(size_t size) JANSSON_ATTRS((warn_unused_result));
 void jsonp_free(void *ptr);
-char *jsonp_strndup(const char *str, size_t length) JANSSON_ATTRS(warn_unused_result);
-char *jsonp_strdup(const char *str) JANSSON_ATTRS(warn_unused_result);
-char *jsonp_strndup(const char *str, size_t len) JANSSON_ATTRS(warn_unused_result);
+char *jsonp_strndup(const char *str, size_t length) JANSSON_ATTRS((warn_unused_result));
+char *jsonp_strdup(const char *str) JANSSON_ATTRS((warn_unused_result));
+char *jsonp_strndup(const char *str, size_t len) JANSSON_ATTRS((warn_unused_result));
 
 /* Circular reference check*/
 /* Space for "0x", double the sizeof a pointer for the hex and a terminator. */
diff --git a/src/lookup3.h b/src/lookup3.h
index 2fe4c25..7a67e03 100644
--- a/src/lookup3.h
+++ b/src/lookup3.h
@@ -243,7 +243,7 @@ static uint32_t hashlittle(const void *key, size_t length, uint32_t initval)
      * rest of the string.  Every machine with memory protection I've seen
      * does it on word boundaries, so is OK with this.  But VALGRIND will
      * still catch it and complain.  The masking trick does make the hash
-     * noticably faster for short strings (like English words).
+     * noticeably faster for short strings (like English words).
      */
 #ifndef NO_MASKING_TRICK
 
diff --git a/src/strbuffer.h b/src/strbuffer.h
index a0276d4..75c02a2 100644
--- a/src/strbuffer.h
+++ b/src/strbuffer.h
@@ -16,7 +16,7 @@ typedef struct {
     size_t size;     /* bytes allocated */
 } strbuffer_t;
 
-int strbuffer_init(strbuffer_t *strbuff) JANSSON_ATTRS(warn_unused_result);
+int strbuffer_init(strbuffer_t *strbuff) JANSSON_ATTRS((warn_unused_result));
 void strbuffer_close(strbuffer_t *strbuff);
 
 void strbuffer_clear(strbuffer_t *strbuff);
diff --git a/src/value.c b/src/value.c
index 7a000f8..e09a485 100644
--- a/src/value.c
+++ b/src/value.c
@@ -37,7 +37,7 @@ static JSON_INLINE int isnan(double x) { return x != x; }
 static JSON_INLINE int isinf(double x) { return !isnan(x) && isnan(x - x); }
 #endif
 
-json_t *do_deep_copy(const json_t *, hashtable_t *);
+json_t *do_deep_copy(const json_t *json, hashtable_t *parents);
 
 static JSON_INLINE void json_init(json_t *json, json_type type)
 {
@@ -214,6 +214,58 @@ int json_object_update_missing(json_t *object, json_t *other)
     return 0;
 }
 
+int do_object_update_recursive(json_t *object, json_t *other, hashtable_t *parents)
+{
+    const char *key;
+    json_t *value;
+    char loop_key[LOOP_KEY_LEN];
+    int res = 0;
+
+    if(!json_is_object(object) || !json_is_object(other))
+        return -1;
+
+    if(jsonp_loop_check(parents, other, loop_key, sizeof(loop_key)))
+        return -1;
+
+    json_object_foreach(other, key, value) {
+        json_t *v = json_object_get(object, key);
+
+        if(json_is_object(v) && json_is_object(value))
+        {
+            if(do_object_update_recursive(v, value, parents))
+            {
+                res = -1;
+                break;
+            }
+        }
+        else
+        {
+            if(json_object_set_nocheck(object, key, value))
+            {
+                res = -1;
+                break;
+            }
+        }
+    }
+
+    hashtable_del(parents, loop_key);
+
+    return res;
+}
+
+int json_object_update_recursive(json_t *object, json_t *other)
+{
+    int res;
+    hashtable_t parents_set;
+
+    if (hashtable_init(&parents_set))
+        return -1;
+    res = do_object_update_recursive(object, other, &parents_set);
+    hashtable_close(&parents_set);
+
+    return res;
+}
+
 void *json_object_iter(json_t *json)
 {
     json_object_t *object;
@@ -329,7 +381,7 @@ static json_t *json_object_deep_copy(const json_t *object, hashtable_t *parents)
 
     result = json_object();
     if(!result)
-        return NULL;
+        goto out;
 
     /* Cannot use json_object_foreach because object has to be cast
        non-const */
@@ -348,6 +400,8 @@ static json_t *json_object_deep_copy(const json_t *object, hashtable_t *parents)
         }
         iter = json_object_iter_next((json_t *)object, iter);
     }
+
+out:
     hashtable_del(parents, loop_key);
 
     return result;
@@ -648,7 +702,7 @@ static json_t *json_array_deep_copy(const json_t *array, hashtable_t *parents)
 
     result = json_array();
     if(!result)
-        return NULL;
+        goto out;
 
     for(i = 0; i < json_array_size(array); i++)
     {
@@ -659,6 +713,8 @@ static json_t *json_array_deep_copy(const json_t *array, hashtable_t *parents)
             break;
         }
     }
+
+out:
     hashtable_del(parents, loop_key);
 
     return result;
diff --git a/test/suites/api/test_array.c b/test/suites/api/test_array.c
index 9991fa0..a1a0934 100644
--- a/test/suites/api/test_array.c
+++ b/test/suites/api/test_array.c
@@ -186,7 +186,7 @@ static void test_insert(void)
 
     for(i = 0; i < 20; i++) {
         if(json_array_insert(array, 0, seven))
-            fail("unable to insert value at the begining of an array");
+            fail("unable to insert value at the beginning of an array");
     }
 
     for(i = 0; i < 20; i++) {
@@ -479,9 +479,9 @@ static void test_bad_args(void)
     if(!json_array_extend(num, arr))
         fail("json_array_extend did not return error for first argument non-array");
     if(!json_array_extend(arr, NULL))
-        fail("json_array_extend did not return error for second arguemnt non-array");
+        fail("json_array_extend did not return error for second argument non-array");
     if(!json_array_extend(arr, num))
-        fail("json_array_extend did not return error for second arguemnt non-array");
+        fail("json_array_extend did not return error for second argument non-array");
 
     if(num->refcount != 1)
         fail("unexpected reference count on num");
diff --git a/test/suites/api/test_dump.c b/test/suites/api/test_dump.c
index cd4af63..c97a105 100644
--- a/test/suites/api/test_dump.c
+++ b/test/suites/api/test_dump.c
@@ -13,6 +13,10 @@
 #include <unistd.h>
 #endif
 #include "util.h"
+#ifdef __MINGW32__
+#include <fcntl.h>
+#define pipe(fds) _pipe(fds, 1024, _O_BINARY)
+#endif
 
 static int encode_null_callback(const char *buffer, size_t size, void *data)
 {
diff --git a/test/suites/api/test_equal.c b/test/suites/api/test_equal.c
index 339bab6..ed1023f 100644
--- a/test/suites/api/test_equal.c
+++ b/test/suites/api/test_equal.c
@@ -159,7 +159,7 @@ static void test_equal_object()
 
 static void test_equal_complex()
 {
-    json_t *value1, *value2;
+    json_t *value1, *value2, *value3;
 
     const char *complex_json =
 "{"
@@ -176,15 +176,25 @@ static void test_equal_complex()
 
     value1 = json_loads(complex_json, 0, NULL);
     value2 = json_loads(complex_json, 0, NULL);
+    value3 = json_loads(complex_json, 0, NULL);
     if(!value1 || !value2)
         fail("unable to parse JSON");
     if(!json_equal(value1, value2))
-        fail("json_equal fails for two inequal strings");
+        fail("json_equal fails for two equal objects");
+
+    json_array_set_new(json_object_get(json_object_get(value2, "object"), 
+            "array-in-object"), 1, json_false());
+    if(json_equal(value1, value2))
+        fail("json_equal fails for two inequal objects");
+
+    json_object_set_new(json_object_get(json_object_get(value3, "object"), 
+            "object-in-object"), "foo", json_string("baz"));
+    if(json_equal(value1, value3))
+        fail("json_equal fails for two inequal objects");
 
     json_decref(value1);
     json_decref(value2);
-
-    /* TODO: There's no negative test case here */
+    json_decref(value3);
 }
 
 static void run_tests()
diff --git a/test/suites/api/test_object.c b/test/suites/api/test_object.c
index 0d320b3..5112fc7 100644
--- a/test/suites/api/test_object.c
+++ b/test/suites/api/test_object.c
@@ -59,7 +59,7 @@ static void test_update()
     /* update an empty object with an empty object */
 
     if(json_object_update(object, other))
-        fail("unable to update an emtpy object with an empty object");
+        fail("unable to update an empty object with an empty object");
 
     if(json_object_size(object) != 0)
         fail("invalid size after update");
@@ -270,6 +270,86 @@ static void test_conditional_updates()
     json_decref(other);
 }
 
+static void test_recursive_updates()
+{
+    json_t *invalid, *object, *other, *barBefore, *barAfter;
+
+    invalid = json_integer(42);
+
+    object = json_pack("{sis{si}}", "foo", 1, "bar", "baz", 2);
+    other = json_pack("{sisisi}", "foo", 3, "bar", 4, "baz", 5);
+
+    if(!json_object_update_recursive(invalid, other))
+        fail("json_object_update_recursive accepted non-object argument");
+
+    json_decref(invalid);
+
+    if(json_object_update_recursive(object, other))
+        fail("json_object_update_recursive failed");
+
+    if(json_object_size(object) != 3)
+        fail("invalid size after update");
+
+    if(json_integer_value(json_object_get(object, "foo")) != 3)
+        fail("json_object_update_recursive failed to update existing key");
+
+    if(json_integer_value(json_object_get(object, "bar")) != 4)
+        fail("json_object_update_recursive failed to overwrite object");
+
+    if(json_integer_value(json_object_get(object, "baz")) != 5)
+        fail("json_object_update_recursive didn't add new item");
+
+    json_decref(object);
+    json_decref(other);
+
+    object = json_pack("{sis{si}}", "foo", 1, "bar", "baz", 2);
+    other = json_pack("{s{si}}", "bar", "baz", 3);
+    barBefore = json_object_get(object, "bar");
+
+    if(!barBefore)
+        fail("can't get bar object before json_object_update_recursive");
+
+    if(json_object_update_recursive(object, other))
+        fail("json_object_update_recursive failed");
+
+    if(json_object_size(object) != 2)
+        fail("invalid size after update");
+
+    if(!json_object_get(object, "foo"))
+        fail("json_object_update_recursive removed existing key");
+
+    if(json_integer_value(json_object_get(json_object_get(object, "bar"), "baz")) != 3)
+        fail("json_object_update_recursive failed to update nested value");
+
+    barAfter = json_object_get(object, "bar");
+    if(!barAfter)
+        fail("can't get bar object after json_object_update_recursive");
+
+    if(barBefore != barAfter)
+        fail("bar object reference changed after json_object_update_recursive");
+
+    json_decref(object);
+    json_decref(other);
+
+    /* check circular reference */
+    object = json_pack("{s{s{s{si}}}}", "foo", "bar", "baz", "xxx", 2);
+    other = json_pack("{s{s{si}}}", "foo", "bar", "baz", 2);
+    json_object_set(json_object_get(json_object_get(other, "foo"), "bar"), "baz",
+                    json_object_get(other, "foo"));
+
+    if(!json_object_update_recursive(object, other))
+        fail("json_object_update_recursive update a circular reference!");
+
+    json_object_set_new(json_object_get(json_object_get(other, "foo"), "bar"), "baz",
+                        json_integer(1));
+
+    if(json_object_update_recursive(object, other))
+        fail("json_object_update_recursive failed!");
+
+    json_decref(object);
+    json_decref(other);
+}
+
 static void test_circular()
 {
     json_t *object1, *object2;
@@ -730,6 +810,7 @@ static void run_tests()
     test_update();
     test_set_many_keys();
     test_conditional_updates();
+    test_recursive_updates();
     test_circular();
     test_set_nocheck();
     test_iterators();