diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/battery/xfce4-battery-plugin_1.1.4.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/battery/xfce4-battery-plugin_1.1.4.bb
index 9e65cf6..0f8489b 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/battery/xfce4-battery-plugin_1.1.4.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/battery/xfce4-battery-plugin_1.1.4.bb
@@ -1,6 +1,6 @@
 SUMMARY = "A battery monitor panel plugin for Xfce4, compatible with APM and ACP"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-battery-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/calculator/xfce4-calculator-plugin_0.7.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/calculator/xfce4-calculator-plugin_0.7.1.bb
index 6ed9e35..8fd2bd0 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/calculator/xfce4-calculator-plugin_0.7.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/calculator/xfce4-calculator-plugin_0.7.1.bb
@@ -1,6 +1,6 @@
 SUMMARY = "A calculator plugin for the Xfce panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-calculator-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=909430f63fddd63f120ba29e8979f65c"
 
 inherit xfce-panel-plugin gtk-icon-cache
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/clipman/xfce4-clipman-plugin_1.6.2.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/clipman/xfce4-clipman-plugin_1.6.2.bb
index d5c626e..39a8f2e 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/clipman/xfce4-clipman-plugin_1.6.2.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/clipman/xfce4-clipman-plugin_1.6.2.bb
@@ -1,7 +1,7 @@
 SUMMARY = "Clipman is a clipboard manager for Xfce"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-clipman-plugin"
 SECTION = "x11/application"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/closebutton/xfce4-closebutton-plugin_git.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/closebutton/xfce4-closebutton-plugin_git.bb
index 67f4172..2384682 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/closebutton/xfce4-closebutton-plugin_git.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/closebutton/xfce4-closebutton-plugin_git.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Plugin displaying close button for application currently active"
 SECTION = "x11"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b6952d9a47fc2ad0f315510e1290455f"
 
 inherit xfce-panel-plugin xfce-git gtk-icon-cache perlnative
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/cpufreq/xfce4-cpufreq-plugin_1.2.5.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/cpufreq/xfce4-cpufreq-plugin_1.2.5.bb
index 8fef520..f3d78c1 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/cpufreq/xfce4-cpufreq-plugin_1.2.5.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/cpufreq/xfce4-cpufreq-plugin_1.2.5.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin to display frequency of all cpus"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-cpufreq-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=1f6f1c0be32491a0c8d2915607a28f36"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/cpugraph/xfce4-cpugraph-plugin_1.2.5.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/cpugraph/xfce4-cpugraph-plugin_1.2.5.bb
index ad731e0..583eacb 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/cpugraph/xfce4-cpugraph-plugin_1.2.5.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/cpugraph/xfce4-cpugraph-plugin_1.2.5.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin with graphical representation of the cpu frequency"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-cpugraph-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=415654f59d8fa70fe4eac2c3f86c8f5e"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/datetime/xfce4-datetime-plugin_0.8.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/datetime/xfce4-datetime-plugin_0.8.1.bb
index f95995b..c029ac1 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/datetime/xfce4-datetime-plugin_0.8.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/datetime/xfce4-datetime-plugin_0.8.1.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin displaying date and time and a calendar when left-clicked"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-datetime-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/eyes/xfce4-eyes-plugin_4.5.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/eyes/xfce4-eyes-plugin_4.5.1.bb
index fce5df5..e18621d 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/eyes/xfce4-eyes-plugin_4.5.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/eyes/xfce4-eyes-plugin_4.5.1.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin with graphical representation of the cpu frequency"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-eyes-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/genmon/xfce4-genmon-plugin_4.1.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/genmon/xfce4-genmon-plugin_4.1.1.bb
index 9a6d4b1..d792bc0 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/genmon/xfce4-genmon-plugin_4.1.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/genmon/xfce4-genmon-plugin_4.1.1.bb
@@ -1,6 +1,6 @@
 DESCRIPTION = "This plugin cyclically spawns the indicated script/program, captures its output (stdout) and displays the resulting string into the panel."
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-genmon-plugin"
-LICENSE = "LGPLv2.1"
+LICENSE = "LGPL-2.1-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=68ad62c64cc6c620126241fd429e68fe"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/mailwatch/xfce4-mailwatch-plugin_1.3.0.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/mailwatch/xfce4-mailwatch-plugin_1.3.0.bb
index c4172f4..a5c98ef 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/mailwatch/xfce4-mailwatch-plugin_1.3.0.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/mailwatch/xfce4-mailwatch-plugin_1.3.0.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Multi-protocol, multi-mailbox mail watcher for the Xfce4 panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-mailwatch-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/mount/xfce4-mount-plugin_1.1.5.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/mount/xfce4-mount-plugin_1.1.5.bb
index 3f35b8c..3a6baf2 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/mount/xfce4-mount-plugin_1.1.5.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/mount/xfce4-mount-plugin_1.1.5.bb
@@ -1,7 +1,7 @@
 SUMMARY = "Mount/umount utility for the xfce panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-mount-plugin"
 SECTION = "x11/application"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/netload/xfce4-netload-plugin_1.4.0.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/netload/xfce4-netload-plugin_1.4.0.bb
index b30543b..834f5cf 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/netload/xfce4-netload-plugin_1.4.0.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/netload/xfce4-netload-plugin_1.4.0.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin displaying current load of the network interfaces"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-netload-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=35a7203c41b86d15546dddc05995f97f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/notes/xfce4-notes-plugin_1.9.0.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/notes/xfce4-notes-plugin_1.9.0.bb
index cd7212f..dc0fc2c 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/notes/xfce4-notes-plugin_1.9.0.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/notes/xfce4-notes-plugin_1.9.0.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Notes plugin for the Xfce Panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-notes-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/places/xfce4-places-plugin_1.8.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/places/xfce4-places-plugin_1.8.1.bb
index c88e843..e2075a6 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/places/xfce4-places-plugin_1.8.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/places/xfce4-places-plugin_1.8.1.bb
@@ -1,7 +1,7 @@
 SUMMARY = "Menu for quick access to folders, documents and removable media"
 DESCRIPTION = "Panel plugin displaying menu with quick access to folders, documents and removable media"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-places-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b6952d9a47fc2ad0f315510e1290455f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/pulseaudio/xfce4-pulseaudio-plugin_0.4.3.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/pulseaudio/xfce4-pulseaudio-plugin_0.4.3.bb
index 9292023..b2d61a1 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/pulseaudio/xfce4-pulseaudio-plugin_0.4.3.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/pulseaudio/xfce4-pulseaudio-plugin_0.4.3.bb
@@ -1,5 +1,5 @@
 SUMMARY = "Pulseaudio mixer for the xfce panel"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=f5eac6bb0d6ec0dc655e417781d4015f"
 
 inherit xfce-panel-plugin features_check
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/sensors/xfce4-sensors-plugin_1.4.2.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/sensors/xfce4-sensors-plugin_1.4.2.bb
index c00ca6f..68f3f64 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/sensors/xfce4-sensors-plugin_1.4.2.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/sensors/xfce4-sensors-plugin_1.4.2.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Sensors plugin for the Xfce Panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-sensors-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b94789bed9aec03b9656a9cc5398c706"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/smartbookmark/xfce4-smartbookmark-plugin_0.5.2.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/smartbookmark/xfce4-smartbookmark-plugin_0.5.2.bb
index 81370e3..fdec598 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/smartbookmark/xfce4-smartbookmark-plugin_0.5.2.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/smartbookmark/xfce4-smartbookmark-plugin_0.5.2.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin allowing to send requests directly to browser"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-smartbookmark-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/time-out/xfce4-time-out-plugin_1.1.2.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/time-out/xfce4-time-out-plugin_1.1.2.bb
index 185e9bc..5b7f624 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/time-out/xfce4-time-out-plugin_1.1.2.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/time-out/xfce4-time-out-plugin_1.1.2.bb
@@ -1,7 +1,7 @@
 SUMMARY = "This plugin makes it possible to take periodical breaks"
 HOMEPAGE = "https://goodies.xfce.org/projects/panel-plugins/xfce4-time-out-plugin"
 SECTION = "x11/application"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/timer/xfce4-timer-plugin_1.7.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/timer/xfce4-timer-plugin_1.7.1.bb
index f154023..1231e08 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/timer/xfce4-timer-plugin_1.7.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/timer/xfce4-timer-plugin_1.7.1.bb
@@ -1,7 +1,7 @@
 SUMMARY = "XFCE panel plugin to generate alarm messages"
 DESCRIPTION = "This is a simple plugin that lets the user run an alarm at a specified time or at the end of a specified countdown period"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-timer-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=ae39271267fd63eb7619432ff24e7ff1"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/verve/xfce4-verve-plugin_2.0.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/verve/xfce4-verve-plugin_2.0.1.bb
index 5902ad0..21bbda3 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/verve/xfce4-verve-plugin_2.0.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/verve/xfce4-verve-plugin_2.0.1.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Verve panel plugin is a comfortable command line plugin for the Xfce panel"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-verve-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/weather/xfce4-weather-plugin_0.11.0.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/weather/xfce4-weather-plugin_0.11.0.bb
index 069c915..ede98e9 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/weather/xfce4-weather-plugin_0.11.0.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/weather/xfce4-weather-plugin_0.11.0.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Panel plugin to display current temperature and weather condition"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-weather-plugin"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
 inherit xfce-panel-plugin
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/whiskermenu/xfce4-whiskermenu-plugin_2.7.1.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/whiskermenu/xfce4-whiskermenu-plugin_2.7.1.bb
index cebe110..6621099 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/whiskermenu/xfce4-whiskermenu-plugin_2.7.1.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/whiskermenu/xfce4-whiskermenu-plugin_2.7.1.bb
@@ -1,6 +1,6 @@
 SUMMARY = "An alternate menu for the Xfce desktop environment"
 HOMEPAGE = "http://gottcode.org/xfce4-whiskermenu-plugin/"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
 inherit xfce-panel-plugin cmake
diff --git a/meta-openembedded/meta-xfce/recipes-panel-plugins/xkb/xfce4-xkb-plugin_0.8.2.bb b/meta-openembedded/meta-xfce/recipes-panel-plugins/xkb/xfce4-xkb-plugin_0.8.2.bb
index ff57236..3d935a3 100644
--- a/meta-openembedded/meta-xfce/recipes-panel-plugins/xkb/xfce4-xkb-plugin_0.8.2.bb
+++ b/meta-openembedded/meta-xfce/recipes-panel-plugins/xkb/xfce4-xkb-plugin_0.8.2.bb
@@ -1,7 +1,7 @@
 SUMMARY = "XKB layout switching panel plug-in for the Xfce desktop environment"
 HOMEPAGE = "http://goodies.xfce.org/projects/panel-plugins/xfce4-xkb-plugin"
 SECTION = "x11/application"
-LICENSE = "GPLv2"
+LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=496f09f084b0f7e6f02f769a84490c6b"
 
 inherit xfce-panel-plugin