diff --git a/core/src/main/resources/hudson/PluginManager/installed_pl.properties b/core/src/main/resources/hudson/PluginManager/installed_pl.properties
index 882151920a..4fb0ab51f3 100644
--- a/core/src/main/resources/hudson/PluginManager/installed_pl.properties
+++ b/core/src/main/resources/hudson/PluginManager/installed_pl.properties
@@ -1,6 +1,6 @@
 # The MIT License
 #
-# Copyright (c) 2004-2016, Sun Microsystems, Damian Szczepanik
+# Copyright (c) 2004-2017, Sun Microsystems, Damian Szczepanik
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -28,12 +28,14 @@ Restart\ Once\ No\ Jobs\ Are\ Running=Uruchom ponownie gdy \u017Cadne zadania ni
 Uncheck\ to\ disable\ the\ plugin=Odznacz aby wy\u0142\u0105czy\u0107 wtyczk\u0119
 Uninstall=Odinstaluj
 Version=Wersja
-downgradeTo=Powr\u00F3\u0107 do starszej wersji {0}
+downgradeTo=Powr\u00F3\u0107 do wersji {0}
 requires.restart=Wymagane jest ponowne uruchomienie Jenkinsa. Zmiany wtyczek w tym momencie s\u0105 bardzo niewskazane. Uruchom ponownie Jenkinsa, zanim wprowadzisz zmiany.
 Uninstallation\ pending=Trwa odinstalowywanie
 This\ plugin\ cannot\ be\ disabled=Ta wtyczka nie mo\u017Ce by\u0107 wy\u0142\u0105czona
 No\ plugins\ installed.=Brak zainstalowanych wtyczek
-This\ plugin\ cannot\ be\ enabled=Ta wtyczka nie mo\u017Ce by\u0107 wy\u0142\u0105czona
+This\ plugin\ cannot\ be\ enabled=Ta wtyczka nie mo\u017Ce by\u0107 w\u0142\u0105czona
 Update\ Center=Centrum aktualizacji
 Filter=Filtruj
 No\ description\ available.=Opis nie jest dost\u0119pny
+Warning=Ostrze\u017Cenie
+New\ plugins\ will\ take\ effect\ once\ you\ restart\ Jenkins=Nowe wtyczki zostan\u0105 w\u0142\u0105czone po ponownym uruchomieniu Jenkinsa.
diff --git a/core/src/main/resources/hudson/security/HudsonPrivateSecurityRealm/config_pl.properties b/core/src/main/resources/hudson/security/HudsonPrivateSecurityRealm/config_pl.properties
index c90b977db4..1b1b2f423f 100644
--- a/core/src/main/resources/hudson/security/HudsonPrivateSecurityRealm/config_pl.properties
+++ b/core/src/main/resources/hudson/security/HudsonPrivateSecurityRealm/config_pl.properties
@@ -1,3 +1,24 @@
-# This file is under the MIT License by authors
-
-Allow\ users\ to\ sign\ up=Pozw\u00F3l ludziom na rejestrowanie si\u0119
+# The MIT License
+#
+# Copyright (c) 2013-2017, Kohsuke Kawaguchi, Sun Microsystems, Inc., and a number of other of contributors
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+Allow\ users\ to\ sign\ up=Pozw\u00F3l u\u017Cytkownikom na rejestrowanie si\u0119
+Enable\ captcha\ on\ sign\ up=W\u0142\u0105cz captcha podczas rejestracji
+Captcha\ Support=Wsparcie dla captcha
diff --git a/core/src/main/resources/hudson/security/Messages_pl.properties b/core/src/main/resources/hudson/security/Messages_pl.properties
index ec181ceb9a..cac95150ed 100644
--- a/core/src/main/resources/hudson/security/Messages_pl.properties
+++ b/core/src/main/resources/hudson/security/Messages_pl.properties
@@ -26,5 +26,23 @@ LDAPSecurityRealm.DisplayName=LDAP
 # Create/delete/modify users that can log in to this Jenkins
 HudsonPrivateSecurityRealm.ManageUserLinks.Description=Dodawaj, usuwaj i modyfikuj u\u017Cytkownik\u00F3w, kt\u00F3rzy mog\u0105 si\u0119 logowa\u0107 do Jenkinsa
 GlobalSecurityConfiguration.DisplayName=Konfiguruj ustawienia bezpiecze\u0144stwa
-GlobalSecurityConfiguration.Description=Zabezpiecz Jenkinsa, decyduj, kto ma do niego dost\u0119p.
+GlobalSecurityConfiguration.Description=Zabezpiecz Jenkinsa: decyduj, kto ma do niego dost\u0119p.
 HudsonPrivateSecurityRealm.Details.DisplayName=Has\u0142o
+HudsonPrivateSecurityRealm.DisplayName=W\u0142asna baza danych Jenkinsa
+HudsonPrivateSecurityRealm.Details.PasswordError=\
+  Potw\u00F3rzone has\u0142o nie jest takie samo, jak wpisane. \
+  Upewnij si\u0119, \u017Ce oba has\u0142a s\u0105 takie same.
+HudsonPrivateSecurityRealm.CreateAccount.PasswordRequired=Has\u0142o jest wymagane
+HudsonPrivateSecurityRealm.CreateAccount.UserNameRequired=Nazwa u\u017Cytkownika jest wymagana
+HudsonPrivateSecurityRealm.CreateAccount.InvalidEmailAddress=Niepoprawny adres e-mail
+HudsonPrivateSecurityRealm.CreateAccount.UserNameAlreadyTaken=Nazwa u\u017Cytkownika jest ju\u017C u\u017Cywana
+AuthorizationStrategy.DisplayName=Ka\u017Cdy u\u017Cytkownik mo\u017Ce wszystko
+LDAPSecurityRealm.SyntaxOfServerField=Sk\u0142adnia serwera to SERWER, SERWER:PORT lub ldaps://SERVER[:PORT]
+LDAPSecurityRealm.UnknownHost=Nieznany host
+LDAPSecurityRealm.InvalidPortNumber=Niepoprawna warto\u015B\u0107 portu
+PAMSecurityRealm.ReadPermission=Jenkins musi mie\u0107 mo\u017Cliwo\u015B\u0107 odczytu /etc/shadow
+PAMSecurityRealm.BelongToGroup={0} musi nale\u017Ce\u0107 do grupy {1} aby m\u00F3c odczyta\u0107 /etc/shadow
+PAMSecurityRealm.Success=Sukces
+PAMSecurityRealm.User=U\u017Cytkownik \u2018{0}\u2019
+PAMSecurityRealm.CurrentUser=Aktualny u\u017Cytkownik
+Permission.Permissions.Title=nd.
diff --git a/core/src/main/resources/hudson/security/SecurityRealm/signup_pl.properties b/core/src/main/resources/hudson/security/SecurityRealm/signup_pl.properties
new file mode 100644
index 0000000000..b8c44f57f3
--- /dev/null
+++ b/core/src/main/resources/hudson/security/SecurityRealm/signup_pl.properties
@@ -0,0 +1,25 @@
+# The MIT License
+#
+# Copyright (c) 2017, Kohsuke Kawaguchi, Sun Microsystems, Inc., and a number of other of contributors
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+Signup\ not\ supported==Rejestracja nie jest wspierana
+This\ is\ not\ supported\ in\ the\ current\ configuration.=Niedost\u0119pne dla aktualnej konfiguracji.
+Sign\ up=Zarejestruj
diff --git a/core/src/main/resources/hudson/tasks/Messages_pl.properties b/core/src/main/resources/hudson/tasks/Messages_pl.properties
index f685a33f96..649fb965a1 100644
--- a/core/src/main/resources/hudson/tasks/Messages_pl.properties
+++ b/core/src/main/resources/hudson/tasks/Messages_pl.properties
@@ -1,6 +1,6 @@
 # The MIT License
 #
-# Copyright (c) 2016, Damian Szczepanik
+# Copyright (c) 2016-2017, Damian Szczepanik
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -21,6 +21,10 @@
 # THE SOFTWARE.
 BuildTrigger.NoProjectSpecified=Nie podano \u017Cadnego projektu
 BuildTrigger.NoSuchProject=Nie odnaleziono projektu ''{0}''. Czy chodzi\u0142o o ''{1}''?
-ArtifactArchiver.NoIncludes=\
 ArtifactArchiver.DisplayName=Zachowaj w artifactory
-BuildTrigger.DisplayName=Uruchom inne zadania
\ No newline at end of file
+BuildTrigger.DisplayName=Uruchom inne zadania
+Ant.DisplayName=Uruchom Ant'a
+Ant.GlobalConfigNeeded=By\u0107 mo\u017Ce musisz skonfigurowa\u0107, gdzie jest instalacja Ant'a?
+Ant.NotADirectory={0} nie jest katalogiem
+Ant.NotAntDirectory={0} nie wygl\u0105da, aby by\u0142 katalogiem Ant'a
+Ant.ProjectConfigNeeded=By\u0107 mo\u017Ce musisz skonfigurowa\u0107 projekt, aby wybra\u0107 jedn\u0105 z instalacji Ant'a?
diff --git a/core/src/main/resources/jenkins/security/UpdateSiteWarningsMonitor/message_pl.properties b/core/src/main/resources/jenkins/security/UpdateSiteWarningsMonitor/message_pl.properties
new file mode 100644
index 0000000000..3e6ce7eddf
--- /dev/null
+++ b/core/src/main/resources/jenkins/security/UpdateSiteWarningsMonitor/message_pl.properties
@@ -0,0 +1,30 @@
+# The MIT License
+#
+# Copyright (c) 2017, Kohsuke Kawaguchi, Sun Microsystems, Inc., and a number of other of contributors
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+pluginTitle={0} {1}:
+coreTitle=Jenkins {0} i kluczowe biblioteki:
+
+blurb=Zosta\u0142y opublikowane ostrze\u017Cenia dla aktualnie zainstalowanych komponent\u00F3w:
+more=Pozosta\u0142e ostrze\u017Cenia zosta\u0142y ukryte ze wzgl\u0119du na u\u017Cywan\u0105 konfiguracje bezpiecze\u0144stwa.
+
+pluginManager.link=Przejd\u017A do managera wtyczek
+configureSecurity.link=Skonfiguruj, kt\u00F3re z ostrze\u017Ce\u0144 b\u0119d\u0105 wy\u015Bwietlane