diff --git a/src/diff.c b/src/diff.c
index 171bffb..c4f550d 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -4112,6 +4112,18 @@
     check_cursor();
     changed_line_abv_curs();
 
+#ifdef FEAT_FOLDING
+    // If all diffs are gone, update folds in all diff windows.
+    if (curtab->tp_first_diff == NULL)
+    {
+	win_T	*wp;
+
+	FOR_ALL_WINDOWS_IN_TAB(curtab, wp)
+	    if (wp->w_p_diff && wp->w_p_fdm[0] == 'd' && wp->w_p_fen)
+		foldUpdateAll(wp);
+    }
+#endif
+
     if (diff_need_update)
 	// redraw already done by ex_diffupdate()
 	diff_need_update = FALSE;
diff --git a/src/testdir/dumps/Test_diff_get_put_linematch_4.dump b/src/testdir/dumps/Test_diff_get_put_linematch_4.dump
index 6cd85c9..16c2cd8 100644
--- a/src/testdir/dumps/Test_diff_get_put_linematch_4.dump
+++ b/src/testdir/dumps/Test_diff_get_put_linematch_4.dump
@@ -1,16 +1,16 @@
-| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34
-| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1>A+0#0000000#ffffff0|B|C|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|A+0#0000000#ffffff0|B|C|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|s+0#0000000#ffffff0|o|m|e|t|h|i|n|g| @25||+1&&| +0#0000e05#a8a8a8255@1|s+0#0000000#ffffff0|o|m|e|t|h|i|n|g| @25
-|~+0#4040ff13&| @35||+1#0000000&|~+0#4040ff13&| @35
+|++0#0000e05#a8a8a8255| |+|-@1| |1|2| |l|i|n|e|s|:| |c|o|m@1|o|n| |l|i|n|e|-@9||+1#0000000#ffffff0|++0#0000e05#a8a8a8255| >+|-@1| |1|2| |l|i|n|e|s|:| |c|o|m@1|o|n| |l|i|n|e|-@9
+|~+0#4040ff13#ffffff0| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
 |~| @35||+1#0000000&|~+0#4040ff13&| @35
 |~| @35||+1#0000000&|~+0#4040ff13&| @35
 |~| @35||+1#0000000&|~+0#4040ff13&| @35
diff --git a/src/testdir/dumps/Test_diff_get_put_linematch_5.dump b/src/testdir/dumps/Test_diff_get_put_linematch_5.dump
index d203885..9caec48 100644
--- a/src/testdir/dumps/Test_diff_get_put_linematch_5.dump
+++ b/src/testdir/dumps/Test_diff_get_put_linematch_5.dump
@@ -1,20 +1,20 @@
-| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@34
-| +0#0000e05#a8a8a8255@1>D+0#0000000#ffffff0|E|F|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31||+1&&| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31
-| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31||+1&&| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31
-| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31||+1&&| +0#0000e05#a8a8a8255@1|x+0#0000000#ffffff0|y|z| @31
-| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F|a|b|c| @28
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F| @31||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F| @31
-| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0|o|m@1|o|n| |l|i|n|e| @23
-| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F| @31||+1&&| +0#0000e05#a8a8a8255@1|D+0#0000000#ffffff0|E|F| @31
-| +0#0000e05#a8a8a8255@1|s+0#0000000#ffffff0|o|m|e|t|h|i|n|g| @25||+1&&| +0#0000e05#a8a8a8255@1|s+0#0000000#ffffff0|o|m|e|t|h|i|n|g| @25
-|~+0#4040ff13&| @35||+1#0000000&|~+0#4040ff13&| @35
+|++0#0000e05#a8a8a8255| >+|-@1| |1|7| |l|i|n|e|s|:| |c|o|m@1|o|n| |l|i|n|e|-@9||+1#0000000#ffffff0|++0#0000e05#a8a8a8255| |+|-@1| |1|7| |l|i|n|e|s|:| |c|o|m@1|o|n| |l|i|n|e|-@9
+|~+0#4040ff13#ffffff0| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
 |X+3#0000000&|d|i|f|i|l|e|1| |[|+|]| @6|5|,|1| @11|A|l@1| |X+1&&|d|i|f|i|l|e|2| @10|5|,|1| @11|A|l@1
 |:+0&&|4|,|1|2|d|i|f@1|g|e|t| @62
diff --git a/src/testdir/test_diffmode.vim b/src/testdir/test_diffmode.vim
index dadffec..5cd9871 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
Binary files differ
diff --git a/src/version.c b/src/version.c
index 6896410..f25ccd0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -710,6 +710,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1439,
+/**/
     1438,
 /**/
     1437,