diff --git a/freeciv-web/src/main/webapp/javascript/fc_types.js b/freeciv-web/src/main/webapp/javascript/fc_types.js
index 64f1df032..1f35b5fb5 100644
--- a/freeciv-web/src/main/webapp/javascript/fc_types.js
+++ b/freeciv-web/src/main/webapp/javascript/fc_types.js
@@ -262,12 +262,16 @@ var ACTION_SPY_ESCAPE = 107;
 var ACTION_UNIT_MOVE = 108;
 var ACTION_UNIT_MOVE2 = 109;
 var ACTION_UNIT_MOVE3 = 110;
-var ACTION_CLEAN = 111;
-var ACTION_USER_ACTION1 = 112;
-var ACTION_USER_ACTION2 = 113;
-var ACTION_USER_ACTION3 = 114;
-var ACTION_USER_ACTION4 = 115;
-var ACTION_COUNT = 116;
+var ACTION_TELEPORT = 111;
+var ACTION_TELEPORT2 = 112;
+var ACTION_TELEPORT3 = 113;
+var ACTION_CLEAN = 114;
+var ACTION_GAIN_VETERANCY = 115;
+var ACTION_USER_ACTION1 = 116;
+var ACTION_USER_ACTION2 = 117;
+var ACTION_USER_ACTION3 = 118;
+var ACTION_USER_ACTION4 = 119;
+var ACTION_COUNT = 120;
 
 /* The action_decision enum */
 /* Doesn't need the player to decide what action to take. */
diff --git a/freeciv/apply_patches.sh b/freeciv/apply_patches.sh
index 36a84b4cf..bede672e4 100755
--- a/freeciv/apply_patches.sh
+++ b/freeciv/apply_patches.sh
@@ -35,6 +35,9 @@
 # 0050-Cache-territory-claiming-base-types.patch
 #   Performance improvement
 #   osdn #47345
+# 0050-Correct-filling-of-territory-claiming-extras-cache.patch
+#   Fix terr claiming extras cache
+#   osdn #48838
 
 # Not in the upstream Freeciv server
 # ----------------------------------
@@ -67,6 +70,7 @@ declare -a PATCHLIST=(
   "backports/0057-Fix-bitvector-copy-functions"
   "backports/0064-featured_text.-ch-Replace-NULL-with-nullptr"
   "backports/0050-Cache-territory-claiming-base-types"
+  "backports/0050-Correct-filling-of-territory-claiming-extras-cache"
   "meson_webperimental"
   "metachange"
   "text_fixes"
diff --git a/freeciv/patches/backports/0050-Correct-filling-of-territory-claiming-extras-cache.patch b/freeciv/patches/backports/0050-Correct-filling-of-territory-claiming-extras-cache.patch
new file mode 100644
index 000000000..72a8312e1
--- /dev/null
+++ b/freeciv/patches/backports/0050-Correct-filling-of-territory-claiming-extras-cache.patch
@@ -0,0 +1,69 @@
+From 0fdd9abb1ddcd602f55f3832b50e5e4f568a2551 Mon Sep 17 00:00:00 2001
+From: Marko Lindqvist <cazfi74@gmail.com>
+Date: Thu, 12 Oct 2023 22:23:13 +0300
+Subject: [PATCH 50/50] Correct filling of territory claiming extras cache
+
+See osdn #48838
+
+Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
+---
+ client/packhand.c | 10 ++++++----
+ server/ruleset.c  |  7 ++-----
+ 2 files changed, 8 insertions(+), 9 deletions(-)
+
+diff --git a/client/packhand.c b/client/packhand.c
+index 783063484c..8b913bafe0 100644
+--- a/client/packhand.c
++++ b/client/packhand.c
+@@ -4283,10 +4283,7 @@ void handle_ruleset_extra(const struct packet_ruleset_extra *p)
+   if (extra_has_flag(pextra, EF_CAUSE_ZOC)) {
+     extra_type_list_append(extra_type_list_of_zoccers(), pextra);
+   }
+-  if (is_extra_caused_by(pextra, EC_BASE)
+-      && territory_claiming_base(extra_base_get(pextra))) {
+-    extra_type_list_append(extra_type_list_of_terr_claimers(), pextra);
+-  }
++
+   pextra->hidden_by = p->hidden_by;
+   pextra->bridged_over = p->bridged_over;
+   pextra->conflicts = p->conflicts;
+@@ -4336,6 +4333,11 @@ void handle_ruleset_base(const struct packet_ruleset_base *p)
+   pbase->vision_main_sq = p->vision_main_sq;
+   pbase->vision_invis_sq = p->vision_invis_sq;
+   pbase->vision_subs_sq = p->vision_subs_sq;
++
++  if (territory_claiming_base(pbase)) {
++    extra_type_list_append(extra_type_list_of_terr_claimers(),
++                           base_extra_get(pbase));
++  }
+ }
+ 
+ /************************************************************************//**
+diff --git a/server/ruleset.c b/server/ruleset.c
+index 75f01dd8b2..1ef4ab36dc 100644
+--- a/server/ruleset.c
++++ b/server/ruleset.c
+@@ -3773,11 +3773,6 @@ static bool load_ruleset_terrain(struct section_file *file,
+         extra_type_list_append(extra_type_list_of_zoccers(), pextra);
+       }
+ 
+-      if (is_extra_caused_by(pextra, EC_BASE)
+-          && territory_claiming_base(extra_base_get(pextra))) {
+-        extra_type_list_append(extra_type_list_of_terr_claimers(), pextra);
+-      }
+-
+       if (!ok) {
+         break;
+       }
+@@ -4008,6 +4003,8 @@ static bool load_ruleset_terrain(struct section_file *file,
+       }
+ 
+       if (territory_claiming_base(pbase)) {
++        extra_type_list_append(extra_type_list_of_terr_claimers(), pextra);
++
+         extra_type_by_cause_iterate(EC_BASE, pextra2) {
+           struct base_type *pbase2;
+ 
+-- 
+2.42.0
+
diff --git a/freeciv/version.txt b/freeciv/version.txt
index 1049bf739..b56e67d3c 100644
--- a/freeciv/version.txt
+++ b/freeciv/version.txt
@@ -1,9 +1,9 @@
 # The Git SHA hash for the commit to checkout from
 # https://github.com/freeciv/freeciv
 
-FCREV=b4ec6f2ab7c02cb7d3d1cad5822f82a12c154ebd
+FCREV=cffdf1a2ff580d07f615c4f8cdac42cf743ca921
 
-ORIGCAPSTR="+Freeciv.Devel-\${MAIN_VERSION}-2023.Sep.18"
+ORIGCAPSTR="+Freeciv.Devel-\${MAIN_VERSION}-2023.Sep.20"
 
 # There's no need to bump this constantly as current freeciv-web
 # makes no connections to outside world - all connections are