diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 425f983..49149cc 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1434,6 +1434,15 @@
 			explicitly accessed using the "* notation.  Also see
 			|gui-clipboard|.
 
+	unnamedplus	A variant of "unnamed" flag which uses the clipboard
+			register '+' (|quoteplus|) instead of register '*' for
+			all operations except yank.  Yank shall copy the text
+			into register '+' and also into '*' when "unnamed" is
+			included.
+			Only available with the |+x11| feature.
+			Availability can be checked with: >
+				if has('unnamedplus')
+<
 	autoselect	Works like the 'a' flag in 'guioptions': If present,
 			then whenever Visual mode is started, or the Visual
 			area extended, Vim tries to become the owner of the
diff --git a/src/eval.c b/src/eval.c
index 3564617..a17d743 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12135,6 +12135,9 @@
 #ifdef FEAT_TOOLBAR
 	"toolbar",
 #endif
+#if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
+	"unnamedplus",
+#endif
 #ifdef FEAT_USR_CMDS
 	"user-commands",    /* was accidentally included in 5.4 */
 	"user_commands",
diff --git a/src/globals.h b/src/globals.h
index 82731f9..84aaa06 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -512,7 +512,11 @@
 #  define clip_plus clip_star	/* there is only one clipboard */
 #  define ONE_CLIPBOARD
 # endif
-EXTERN int	clip_unnamed INIT(= FALSE);
+
+#define CLIP_UNNAMED      1
+#define CLIP_UNNAMED_PLUS 2
+EXTERN int	clip_unnamed INIT(= 0); /* above two values or'ed */
+
 EXTERN int	clip_autoselect INIT(= FALSE);
 EXTERN int	clip_autoselectml INIT(= FALSE);
 EXTERN int	clip_html INIT(= FALSE);
diff --git a/src/ops.c b/src/ops.c
index 04ef069..f31f395 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -1584,9 +1584,11 @@
 adjust_clip_reg(rp)
     int		*rp;
 {
-    /* If no reg. specified, and "unnamed" is in 'clipboard', use '*' reg. */
-    if (*rp == 0 && clip_unnamed)
-	*rp = '*';
+    /* If no reg. specified, and "unnamed" or "unnamedplus" is in 'clipboard',
+     * use '*' or '+' reg, respectively. "unnamedplus" prevails. */
+    if (*rp == 0 && clip_unnamed != 0)
+	*rp = ((clip_unnamed & CLIP_UNNAMED_PLUS) && clip_plus.available)
+								  ? '+' : '*';
     if (!clip_star.available && *rp == '*')
 	*rp = 0;
     if (!clip_plus.available && *rp == '+')
@@ -2842,6 +2844,7 @@
     char_u		*p;
     char_u		*pnew;
     struct block_def	bd;
+    int			did_star = FALSE;
 
 				    /* check for read-only register */
     if (oap->regname != 0 && !valid_yank_reg(oap->regname, TRUE))
@@ -3115,7 +3118,8 @@
      */
     if (clip_star.available
 	    && (curr == &(y_regs[STAR_REGISTER])
-		|| (!deleting && oap->regname == 0 && clip_unnamed)))
+		|| (!deleting && oap->regname == 0
+					   && (clip_unnamed & CLIP_UNNAMED))))
     {
 	if (curr != &(y_regs[STAR_REGISTER]))
 	    /* Copy the text from register 0 to the clipboard register. */
@@ -3123,6 +3127,7 @@
 
 	clip_own_selection(&clip_star);
 	clip_gen_set_selection(&clip_star);
+	did_star = TRUE;
     }
 
 # ifdef FEAT_X11
@@ -3130,12 +3135,19 @@
      * If we were yanking to the '+' register, send result to selection.
      * Also copy to the '*' register, in case auto-select is off.
      */
-    else if (clip_plus.available && curr == &(y_regs[PLUS_REGISTER]))
+    if (clip_plus.available
+	    && (curr == &(y_regs[PLUS_REGISTER])
+		|| (!deleting && oap->regname == 0
+				      && (clip_unnamed & CLIP_UNNAMED_PLUS))))
     {
+	if (curr != &(y_regs[PLUS_REGISTER]))
+	    /* Copy the text from register 0 to the clipboard register. */
+	    copy_yank_reg(&(y_regs[PLUS_REGISTER]));
+
 	/* No need to copy to * register upon 'unnamed' now - see below */
 	clip_own_selection(&clip_plus);
 	clip_gen_set_selection(&clip_plus);
-	if (!clip_isautosel())
+	if (!clip_isautosel() && !did_star)
 	{
 	    copy_yank_reg(&(y_regs[STAR_REGISTER]));
 	    clip_own_selection(&clip_star);
diff --git a/src/option.c b/src/option.c
index 419ef68..87eadd0 100644
--- a/src/option.c
+++ b/src/option.c
@@ -7307,7 +7307,7 @@
     static char_u *
 check_clipboard_option()
 {
-    int		new_unnamed = FALSE;
+    int		new_unnamed = 0;
     int		new_autoselect = FALSE;
     int		new_autoselectml = FALSE;
     int		new_html = FALSE;
@@ -7319,9 +7319,15 @@
     {
 	if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
 	{
-	    new_unnamed = TRUE;
+	    new_unnamed |= CLIP_UNNAMED;
 	    p += 7;
 	}
+        else if (STRNCMP(p, "unnamedplus", 11) == 0
+					    && (p[11] == ',' || p[11] == NUL))
+	{
+	    new_unnamed |= CLIP_UNNAMED_PLUS;
+	    p += 11;
+	}
 	else if (STRNCMP(p, "autoselect", 10) == 0
 					&& (p[10] == ',' || p[10] == NUL))
 	{
diff --git a/src/version.c b/src/version.c
index 9d414e8..f400d1c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    74,
+/**/
     73,
 /**/
     72,