diff --git a/tcsh-6.17.06-dspmbyte.dif b/tcsh-6.17.06-dspmbyte.dif
index dff6743..59d1779 100644
--- a/tcsh-6.17.06-dspmbyte.dif
+++ b/tcsh-6.17.06-dspmbyte.dif
@@ -52,7 +52,7 @@
  # endif /* SETLOCALEBUG */
 --- sh.set.c
 +++ sh.set.c	2021-04-27 07:38:12.412808424 +0000
-@@ -1160,11 +1160,11 @@ update_dspmbyte_vars(void)
+@@ -1163,11 +1163,11 @@ update_dspmbyte_vars(void)
  	dstr1 = vp->vec[0];
  	if (eq (dstr1, STRsjis))
  	    iskcode = 1;
@@ -66,7 +66,7 @@
  	    iskcode = 4;
  	else if ((dstr1[0] - '0') >= 0 && (dstr1[0] - '0') <= 3) {
  	    iskcode = 0;
-@@ -1248,7 +1248,7 @@ update_dspmbyte_vars(void)
+@@ -1251,7 +1251,7 @@ update_dspmbyte_vars(void)
  	_enable_mbdisp = 0;
  	dspmbyte_ls = 0;
      }
@@ -75,7 +75,7 @@
      {
  	Char mbmapstr[300];
  	for (lp = 0; lp < 256; lp++)
-@@ -1256,7 +1256,7 @@ update_dspmbyte_vars(void)
+@@ -1259,7 +1259,7 @@ update_dspmbyte_vars(void)
  	mbmapstr[lp] = 0;
  	setcopy(STRmbytemap, mbmapstr, VAR_READWRITE);
      }
@@ -84,7 +84,7 @@
  }
  
  /* dspkanji/dspmbyte autosetting */
-@@ -1265,6 +1265,7 @@ void
+@@ -1268,6 +1268,7 @@ void
  autoset_dspmbyte(const Char *pcp)
  {
      int i;
@@ -92,7 +92,7 @@
      static const struct dspm_autoset_Table {
  	Char *n;
  	Char *v;
-@@ -1287,13 +1288,18 @@ autoset_dspmbyte(const Char *pcp)
+@@ -1290,13 +1291,18 @@ autoset_dspmbyte(const Char *pcp)
  #if defined(HAVE_NL_LANGINFO) && defined(CODESET)
      static const struct dspm_autoset_Table dspmc[] = {
  	{ STRstarutfstar8, STRutf8 },
@@ -126,7 +126,7 @@
  Char STRGB2312[]	= { 'g', 'b', '2', '3', '1', '2', '\0' };
  #  ifdef MBYTEDEBUG	/* Sorry, use for beta testing */
  Char STRmbytemap[]	= { 'm', 'b', 'y', 't', 'e', 'm', 'a', 'p', '\0' };
-@@ -440,7 +442,7 @@ Char STRkilldup[] 	= { 'k', 'i', 'l', 'l
+@@ -441,7 +443,7 @@ Char STRkilldup[] 	= { 'k', 'i', 'l', 'l
  Char STRshlvl[]		= { 's', 'h', 'l', 'v', 'l', '\0' };
  Char STRKSHLVL[]	= { 'S', 'H', 'L', 'V', 'L', '\0' };
  Char STRLANG[]		= { 'L', 'A', 'N', 'G', '\0' };
diff --git a/tcsh-6.18.03-colorls.dif b/tcsh-6.18.03-colorls.dif
index 256a518..bd55a24 100644
--- a/tcsh-6.18.03-colorls.dif
+++ b/tcsh-6.18.03-colorls.dif
@@ -1,9 +1,9 @@
 ---
- tw.color.c |   25 ++++++++++++-------------
- 1 file changed, 12 insertions(+), 13 deletions(-)
+ tw.color.c |   20 ++++++++++----------
+ 1 file changed, 10 insertions(+), 10 deletions(-)
 
 --- tw.color.c
-+++ tw.color.c	2016-11-25 08:02:01.645250915 +0000
++++ tw.color.c	2021-11-11 11:00:40.989284076 +0000
 @@ -85,6 +85,7 @@ static Variable variables[] = {
      VAR(NOS, "hl", "44;37"),    /* Reg file extra hard links, obsolete? */
      VAR(NOS, "mh", "44;37"),    /* Reg file extra hard links */
@@ -12,7 +12,7 @@
  };
  
  #define nvariables (sizeof(variables)/sizeof(variables[0]))
-@@ -323,7 +324,7 @@ parseLS_COLORS(const Char *value)
+@@ -324,7 +325,7 @@ parseLS_COLORS(const Char *value)
      size_t  i, len;
      const Char	 *v;		/* pointer in value */
      char   *c;			/* pointer in colors */
@@ -21,24 +21,25 @@
      jmp_buf_t osetexit;
      size_t omark;
  
-@@ -380,13 +381,10 @@ parseLS_COLORS(const Char *value)
+@@ -381,16 +382,14 @@ parseLS_COLORS(const Char *value)
  			if ((Char)variables[i].variable[0] == (v[0] & CHAR) &&
  			    (Char)variables[i].variable[1] == (v[1] & CHAR))
  			    break;
--		    if (i < nvariables) {
--			v += 3;
 +		    v += 3;
-+		    if (i < nvariables)
+ 		    if (i < nvariables) {
+-			v += 3;
  			getstring(&c, &v, &variables[i].color, ':');
--			continue;
--		    }
+ 			if (i == VSym)
+ 			    color_as_referent = strcasecmp(
+ 				variables[VSym].color.s, "target") == 0;
+ 			continue;
+ 		    }
 -		    else
 -			stderror(ERR_BADCOLORVAR, v[0], v[1]);
-+		    continue;
  		}
  		break;
  	    }
-@@ -445,12 +443,13 @@ print_color(const Char *fname, size_t le
+@@ -449,12 +448,13 @@ print_color(const Char *fname, size_t le
  		break;
  	    }
  	if (i == nvariables) {
diff --git a/tcsh-6.21.00.dif b/tcsh-6.21.00.dif
index 35a06e0..871f47c 100644
--- a/tcsh-6.21.00.dif
+++ b/tcsh-6.21.00.dif
@@ -187,7 +187,7 @@
  
  #else
  
-@@ -1937,7 +1941,7 @@ getremotehost(int dest_fd)
+@@ -1939,7 +1943,7 @@ getremotehost(int dest_fd)
  	     * have not caught up yet.
  	     */
  	    addr.s_addr = inet_addr(name);
@@ -221,7 +221,7 @@
      if ((utmpfd = xopen(TCSH_PATH_UTMP, O_RDONLY|O_LARGEFILE)) < 0) {
 --- tcsh.man
 +++ tcsh.man	2021-04-27 07:41:53.196829900 +0000
-@@ -602,7 +602,7 @@ Repeating \fIdabbrev-expand\fR without a
+@@ -603,7 +603,7 @@ Repeating \fIdabbrev-expand\fR without a
  changes to the next previous word etc., skipping identical matches
  much like \fIhistory-search-backward\fR does.
  .TP 8
diff --git a/tcsh-6.22.02-local-dotlock.dif b/tcsh-6.22.02-local-dotlock.dif
index eeb4c02..f0d377f 100644
--- a/tcsh-6.22.02-local-dotlock.dif
+++ b/tcsh-6.22.02-local-dotlock.dif
@@ -172,7 +172,7 @@ Avoid left over dot lock file after reboot
  #endif /* #ifndef _DOTLOCK_H_ */
 --- sh.hist.c
 +++ sh.hist.c	2020-02-19 09:48:57.640589111 +0000
-@@ -1219,9 +1219,11 @@ fmthist(int fmt, ptr_t ptr)
+@@ -1230,9 +1230,11 @@ fmthist(int fmt, ptr_t ptr)
  }
  
  static void
@@ -186,7 +186,7 @@ Avoid left over dot lock file after reboot
  }
  
  /* Save history before exiting the shell. */
-@@ -1300,11 +1302,12 @@ rechist(Char *fname, int ref)
+@@ -1311,11 +1313,12 @@ rechist(Char *fname, int ref)
  	    jmp_buf_t osetexit;
  	    if (lock) {
  #ifndef WINNT_NATIVE
diff --git a/tcsh-6.22.04.tar.gz b/tcsh-6.22.04.tar.gz
deleted file mode 100644
index a438d8a..0000000
--- a/tcsh-6.22.04.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:eb16356243218c32f39e07258d72bf8b21e62ce94bb0e8a95e318b151397e231
-size 1012977
diff --git a/tcsh-6.22.04.tar.gz.asc b/tcsh-6.22.04.tar.gz.asc
deleted file mode 100644
index 4320cda..0000000
--- a/tcsh-6.22.04.tar.gz.asc
+++ /dev/null
@@ -1,6 +0,0 @@
------BEGIN PGP SIGNATURE-----
-
-iEYEABECAAYFAmCG8OgACgkQcREqsWyzOzpG9gCfamrA+lSmiEOdpSe2VhLDf53K
-PQIAoMv2/YXJONISwE0uUGXyI6MpB0tr
-=Rw/9
------END PGP SIGNATURE-----
diff --git a/tcsh-6.23.00.tar.gz b/tcsh-6.23.00.tar.gz
new file mode 100644
index 0000000..50704db
--- /dev/null
+++ b/tcsh-6.23.00.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4ebeb2f33633d115d9535f554c651a8523040d8d91e5de333fb2ee045b8e001e
+size 1010250
diff --git a/tcsh-6.23.00.tar.gz.asc b/tcsh-6.23.00.tar.gz.asc
new file mode 100644
index 0000000..047aeb5
--- /dev/null
+++ b/tcsh-6.23.00.tar.gz.asc
@@ -0,0 +1,16 @@
+-----BEGIN PGP SIGNATURE-----
+
+iQIzBAABCgAdFiEErYcQl2PY2MLJTLqAZcJuRx9FsSMFAmGM7eYACgkQZcJuRx9F
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+-----END PGP SIGNATURE-----
diff --git a/tcsh.changes b/tcsh.changes
index d133686..5314aa1 100644
--- a/tcsh.changes
+++ b/tcsh.changes
@@ -1,3 +1,22 @@
+-------------------------------------------------------------------
+Fri Nov 12 07:28:43 UTC 2021 - Dr. Werner Fink <werner@suse.de>
+
+- Enable signature again as now Kimmo has provided his public key 
+
+-------------------------------------------------------------------
+Thu Nov 11 13:23:13 UTC 2021 - Dr. Werner Fink <werner@suse.de>
+
+- Update to tcsh 6.23.00
+  * Add "jobs -Z" to setproctitle(3)
+  * Add ln=target in LS_COLORS
+  * Add a :Q modifier that preserves empty arguments
+- Port patches
+  * tcsh-6.17.06-dspmbyte.dif
+  * tcsh-6.18.03-colorls.dif
+  * tcsh-6.21.00.dif
+  * tcsh-6.22.02-local-dotlock.dif
+- Disable signature as signed with unknown key
+
 -------------------------------------------------------------------
 Wed Aug  4 12:24:25 UTC 2021 - Dr. Werner Fink <werner@suse.de>
 
diff --git a/tcsh.keyring b/tcsh.keyring
index aa6c7c5..899d9a4 100644
--- a/tcsh.keyring
+++ b/tcsh.keyring
@@ -41,3 +41,54 @@ AgAPAhsMBQJXtGxGBQkiRZ0QAAoJEHERKrFsszs6IlQAnjLT4D/+k6uneuOjbxTK
 3fhT6pGrAJ42qJm0ptKqlSBwuYo2Ci36ZIQCaQ==
 =IJYi
 -----END PGP PUBLIC KEY BLOCK-----
+-----BEGIN PGP PUBLIC KEY BLOCK-----
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+=+OYc
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/tcsh.spec b/tcsh.spec
index 23750c6..a907092 100644
--- a/tcsh.spec
+++ b/tcsh.spec
@@ -17,7 +17,7 @@
 
 
 Name:           tcsh
-Version:        6.22.04
+Version:        6.23.00
 Release:        0
 Summary:        The C SHell
 License:        BSD-3-Clause