diff --git a/t/t9010-svn-fe.sh b/t/t9010-svn-fe.sh
index f1e8799bbd..7dc06707a1 100755
--- a/t/t9010-svn-fe.sh
+++ b/t/t9010-svn-fe.sh
@@ -514,7 +514,12 @@ test_expect_success 'deltas not supported' '
 	test_must_fail test-svn-fe delta.dump
 '
 
-test_expect_success 'property deltas not supported' '
+test_expect_success 'property deltas supported' '
+	reinit_git &&
+	cat >expect <<-\EOF &&
+	OBJID
+	:100755 100644 OBJID OBJID M	script.sh
+	EOF
 	{
 		properties \
 			svn:author author@example.com \
@@ -565,7 +570,100 @@ test_expect_success 'property deltas not supported' '
 		PROPS-END
 		EOF
 	} >propdelta.dump &&
-	test_must_fail test-svn-fe propdelta.dump
+	test-svn-fe propdelta.dump >stream &&
+	git fast-import <stream &&
+	{
+		git rev-list HEAD |
+		git diff-tree --stdin |
+		sed "s/$_x40/OBJID/g"
+	} >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'deltas for typechange' '
+	reinit_git &&
+	cat >expect <<-\EOF &&
+	OBJID
+	:120000 100644 OBJID OBJID T	test-file
+	OBJID
+	:100755 120000 OBJID OBJID T	test-file
+	OBJID
+	:000000 100755 OBJID OBJID A	test-file
+	EOF
+	cat >deleteprop.dump <<-\EOF &&
+	SVN-fs-dump-format-version: 3
+
+	Revision-number: 1
+	Prop-content-length: 10
+	Content-length: 10
+
+	PROPS-END
+
+	Node-path: test-file
+	Node-kind: file
+	Node-action: add
+	Prop-delta: true
+	Prop-content-length: 35
+	Text-content-length: 17
+	Content-length: 52
+
+	K 14
+	svn:executable
+	V 0
+
+	PROPS-END
+	link testing 123
+
+	Revision-number: 2
+	Prop-content-length: 10
+	Content-length: 10
+
+	PROPS-END
+
+	Node-path: test-file
+	Node-kind: file
+	Node-action: change
+	Prop-delta: true
+	Prop-content-length: 53
+	Text-content-length: 17
+	Content-length: 70
+
+	K 11
+	svn:special
+	V 1
+	*
+	D 14
+	svn:executable
+	PROPS-END
+	link testing 231
+
+	Revision-number: 3
+	Prop-content-length: 10
+	Content-length: 10
+
+	PROPS-END
+
+	Node-path: test-file
+	Node-kind: file
+	Node-action: change
+	Prop-delta: true
+	Prop-content-length: 27
+	Text-content-length: 17
+	Content-length: 44
+
+	D 11
+	svn:special
+	PROPS-END
+	link testing 321
+	EOF
+	test-svn-fe deleteprop.dump >stream &&
+	git fast-import <stream &&
+	{
+		git rev-list HEAD |
+		git diff-tree --root --stdin |
+		sed "s/$_x40/OBJID/g"
+	} >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 't9135/svn.dump' '
diff --git a/vcs-svn/svndump.c b/vcs-svn/svndump.c
index 576d148e5e..c71a57599e 100644
--- a/vcs-svn/svndump.c
+++ b/vcs-svn/svndump.c
@@ -115,20 +115,35 @@ static void init_keys(void)
 	keys.prop_delta = pool_intern("Prop-delta");
 }
 
-static void handle_property(uint32_t key, const char *val, uint32_t len)
+static void handle_property(uint32_t key, const char *val, uint32_t len,
+				uint32_t *type_set)
 {
 	if (key == keys.svn_log) {
+		if (!val)
+			die("invalid dump: unsets svn:log");
 		/* Value length excludes terminating nul. */
 		rev_ctx.log = log_copy(len + 1, val);
 	} else if (key == keys.svn_author) {
 		rev_ctx.author = pool_intern(val);
 	} else if (key == keys.svn_date) {
+		if (!val)
+			die("invalid dump: unsets svn:date");
 		if (parse_date_basic(val, &rev_ctx.timestamp, NULL))
-			fprintf(stderr, "Invalid timestamp: %s\n", val);
-	} else if (key == keys.svn_executable) {
-		node_ctx.type = REPO_MODE_EXE;
-	} else if (key == keys.svn_special) {
-		node_ctx.type = REPO_MODE_LNK;
+			warning("invalid timestamp: %s", val);
+	} else if (key == keys.svn_executable || key == keys.svn_special) {
+		if (*type_set) {
+			if (!val)
+				return;
+			die("invalid dump: sets type twice");
+		}
+		if (!val) {
+			node_ctx.type = REPO_MODE_BLB;
+			return;
+		}
+		*type_set = 1;
+		node_ctx.type = key == keys.svn_executable ?
+				REPO_MODE_EXE :
+				REPO_MODE_LNK;
 	}
 }
 
@@ -136,6 +151,19 @@ static void read_props(void)
 {
 	uint32_t key = ~0;
 	const char *t;
+	/*
+	 * NEEDSWORK: to support simple mode changes like
+	 *	K 11
+	 *	svn:special
+	 *	V 1
+	 *	*
+	 *	D 14
+	 *	svn:executable
+	 * we keep track of whether a mode has been set and reset to
+	 * plain file only if not.  We should be keeping track of the
+	 * symlink and executable bits separately instead.
+	 */
+	uint32_t type_set = 0;
 	while ((t = buffer_read_line()) && strcmp(t, "PROPS-END")) {
 		uint32_t len;
 		const char *val;
@@ -151,8 +179,13 @@ static void read_props(void)
 		case 'K':
 			key = pool_intern(val);
 			continue;
+		case 'D':
+			key = pool_intern(val);
+			val = NULL;
+			len = 0;
+			/* fall through */
 		case 'V':
-			handle_property(key, val, len);
+			handle_property(key, val, len, &type_set);
 			key = ~0;
 			continue;
 		default:
@@ -167,8 +200,8 @@ static void handle_node(void)
 	const uint32_t type = node_ctx.type;
 	const int have_props = node_ctx.propLength != LENGTH_UNKNOWN;
 
-	if (node_ctx.text_delta || node_ctx.prop_delta)
-		die("text and property deltas not supported");
+	if (node_ctx.text_delta)
+		die("text deltas not supported");
 	if (node_ctx.textLength != LENGTH_UNKNOWN)
 		mark = next_blob_mark();
 	if (node_ctx.action == NODEACT_DELETE) {
@@ -206,7 +239,8 @@ static void handle_node(void)
 	}
 	if (have_props) {
 		const uint32_t old_mode = node_ctx.type;
-		node_ctx.type = type;
+		if (!node_ctx.prop_delta)
+			node_ctx.type = type;
 		if (node_ctx.propLength)
 			read_props();
 		if (node_ctx.type != old_mode)