diff --git a/diff.go b/diff.go
index 565fcee..5b96fac 100644
--- a/diff.go
+++ b/diff.go
@@ -20,6 +20,7 @@ const (
 	DiffFlagBinary    DiffFlag = C.GIT_DIFF_FLAG_BINARY
 	DiffFlagNotBinary DiffFlag = C.GIT_DIFF_FLAG_NOT_BINARY
 	DiffFlagValidOid  DiffFlag = C.GIT_DIFF_FLAG_VALID_ID
+	DiffFlagExists    DiffFlag = C.GIT_DIFF_FLAG_EXISTS
 )
 
 type Delta int
@@ -34,6 +35,8 @@ const (
 	DeltaIgnored    Delta = C.GIT_DELTA_IGNORED
 	DeltaUntracked  Delta = C.GIT_DELTA_UNTRACKED
 	DeltaTypeChange Delta = C.GIT_DELTA_TYPECHANGE
+	DeltaUnreadable Delta = C.GIT_DELTA_UNREADABLE
+	DeltaConflicted Delta = C.GIT_DELTA_CONFLICTED
 )
 
 type DiffLineType int
@@ -372,6 +375,7 @@ const (
 	DiffIgnoreFilemode         DiffOptionsFlag = C.GIT_DIFF_IGNORE_FILEMODE
 	DiffIgnoreSubmodules       DiffOptionsFlag = C.GIT_DIFF_IGNORE_SUBMODULES
 	DiffIgnoreCase             DiffOptionsFlag = C.GIT_DIFF_IGNORE_CASE
+	DiffIncludeCaseChange      DiffOptionsFlag = C.GIT_DIFF_INCLUDE_CASECHANGE
 
 	DiffDisablePathspecMatch    DiffOptionsFlag = C.GIT_DIFF_DISABLE_PATHSPEC_MATCH
 	DiffSkipBinaryCheck         DiffOptionsFlag = C.GIT_DIFF_SKIP_BINARY_CHECK
diff --git a/repository.go b/repository.go
index 2e6b81d..f0a2c74 100644
--- a/repository.go
+++ b/repository.go
@@ -268,6 +268,40 @@ func (v *Repository) IsHeadDetached() (bool, error) {
 	return ret != 0, nil
 }
 
+func (v *Repository) IsHeadUnborn() (bool, error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_repository_head_unborn(v.ptr)
+	if ret < 0 {
+		return false, MakeGitError(ret)
+	}
+	return ret != 0, nil
+}
+
+func (v *Repository) IsEmpty() (bool, error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_repository_is_empty(v.ptr)
+	if ret < 0 {
+		return false, MakeGitError(ret)
+	}
+
+	return ret != 0, nil
+}
+
+func (v *Repository) IsShallow() (bool, error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_repository_is_shallow(v.ptr)
+	if ret < 0 {
+		return false, MakeGitError(ret)
+	}
+	return ret != 0, nil
+}
+
 func (v *Repository) Walk() (*RevWalk, error) {
 
 	var walkPtr *C.git_revwalk
diff --git a/status.go b/status.go
index 068a474..e68e6e9 100644
--- a/status.go
+++ b/status.go
@@ -25,6 +25,7 @@ const (
 	StatusWtTypeChange    Status = C.GIT_STATUS_WT_TYPECHANGE
 	StatusWtRenamed       Status = C.GIT_STATUS_WT_RENAMED
 	StatusIgnored         Status = C.GIT_STATUS_IGNORED
+	StatusConflicted      Status = C.GIT_STATUS_CONFLICTED
 )
 
 type StatusEntry struct {