diff --git a/gns3server/appliances/nokia-vsim.gns3a b/gns3server/appliances/nokia-vsim.gns3a
new file mode 100644
index 00000000..d05618cf
--- /dev/null
+++ b/gns3server/appliances/nokia-vsim.gns3a
@@ -0,0 +1,46 @@
+{
+    "name": "Nokia vSIM",
+    "category": "router",
+    "description": "The Nokia Virtualized 7750 SR and 7950 XRS Simulator (vSIM) is a Virtualized Network Function (VNF) that simulates the control, management, and forwarding functions of a 7750 SR or 7950 XRS router. The vSIM runs the same Service Router Operating System (SR OS) as 7750 SR and 7950 XRS hardware-based routers and, therefore, has the same feature set and operational behavior as those platforms.",
+    "vendor_name": "Nokia",
+    "vendor_url": "https://www.nokia.com/networks/",
+    "documentation_url": "https://documentation.nokia.com/",
+    "product_name": "Nokia vSIM",
+    "product_url": "https://www.nokia.com/networks/products/virtualized-service-router/",
+    "registry_version": 4,
+    "status": "experimental",
+    "maintainer": "Vinicius Rocha",
+    "maintainer_email": "viniciusatr@gmail.com",
+    "usage": "Login is admin and password is admin. \n\nWe are using one IOM with one MDA 12x100G (w/ breakout).\n\nYou must add your license: file vi cf3:license.txt",
+    "first_port_name": "A/1",
+    "port_name_format": "1/1/{port1}",
+    "qemu": {
+        "adapter_type": "virtio-net-pci",
+        "adapters": 13,
+        "ram": 4096,
+		"cpus": 2,
+        "hda_disk_interface": "virtio",
+        "arch": "x86_64",
+        "console_type": "telnet",
+        "kvm": "require",
+        "options": "-nographic -smbios type=1,product=TIMOS:license-file=cf3:license.txt\\ slot=A\\ chassis=SR-1\\ card=cpm-1\\ mda/1=me12-100gb-qsfp28"
+    },
+    "images": [
+        {
+            "filename": "sros-vsr-21.7.R1.qcow2",
+            "version": "21.7.R1",
+            "md5sum": "7eed38c01350ebaf9c6105e26ce5307e",
+            "filesize": 568655872,
+            "download_url": "https://customer.nokia.com/support/s/",
+            "compression": "zip"
+        }
+    ],
+    "versions": [
+        {
+            "name": "21.7.R1",
+            "images": {
+                "hda_disk_image": "sros-vsr-21.7.R1.qcow2"
+            }
+        }
+    ]
+}
diff --git a/gns3server/appliances/open-media-vault.gns3a b/gns3server/appliances/open-media-vault.gns3a
index 6bc5ef04..0b68c4b9 100644
--- a/gns3server/appliances/open-media-vault.gns3a
+++ b/gns3server/appliances/open-media-vault.gns3a
@@ -7,7 +7,7 @@
     "documentation_url": "hhttps://docs.openmediavault.org",
     "product_name": "OpenMediaVault",
     "product_url": "https://www.openmediavault.org/",
-    "registry_version": 3,
+    "registry_version": 4,
     "status": "stable",
     "maintainer": "Savio D'souza",
     "maintainer_email": "savio2002@yahoo.in",
@@ -17,21 +17,29 @@
         "adapter_type": "e1000",
         "adapters": 1,
         "ram": 2048,
-        "hda_disk_interface": "ide",
-        "hdb_disk_interface": "ide",
-        "arch": "x86_64",
+        "hda_disk_interface": "sata",
+        "hdb_disk_interface": "sata",
+		"arch": "x86_64",
         "console_type": "vnc",
         "boot_priority": "dc",
         "kvm": "require"
     },
     "images": [
+        {
+            "filename": "openmediavault_5.6.13-amd64.iso",
+            "version": "5.6.13",
+            "md5sum": "f08b41a5111fffca0355d53e26ec47ab",
+            "filesize": 652214272,
+            "download_url": "https://www.openmediavault.org/download.html",
+            "direct_download_url": "https://sourceforge.net/projects/openmediavault/files/5.6.13/openmediavault_5.6.13-amd64.iso/download"
+        },
         {
             "filename": "openmediavault_5.5.11-amd64.iso",
             "version": "5.5.11",
             "md5sum": "76baad8e13dd49bee9b4b4a6936b7296",
             "filesize": 608174080,
             "download_url": "https://www.openmediavault.org/download.html",
-            "direct_download_url": "https://sourceforge.net/projects/openmediavault/files/latest/download"
+            "direct_download_url": "https://sourceforge.net/projects/openmediavault/files/5.5.11/openmediavault_5.5.11-amd64.iso/download"
         },
         {
             "filename": "empty30G.qcow2",
@@ -44,12 +52,20 @@
     ],
     "versions": [
         {
-            "name": "5.5.11",
+            "name": "5.6.13",
             "images": {
                 "hda_disk_image": "empty30G.qcow2",
                 "hdb_disk_image": "empty30G.qcow2",
-                "cdrom_image": "openmediavault_5.5.11-amd64.iso"
+                "cdrom_image": "openmediavault_5.6.13-amd64.iso"
             }
+    },
+    {
+        "name": "5.5.11",
+        "images": {
+            "hda_disk_image": "empty30G.qcow2",
+            "hdb_disk_image": "empty30G.qcow2",
+            "cdrom_image": "openmediavault_5.5.11-amd64.iso"
         }
+    }
     ]
 }
diff --git a/gns3server/appliances/openwrt.gns3a b/gns3server/appliances/openwrt.gns3a
index a8b8fca8..a7228ea4 100644
--- a/gns3server/appliances/openwrt.gns3a
+++ b/gns3server/appliances/openwrt.gns3a
@@ -22,6 +22,24 @@
         "kvm": "allow"
     },
     "images": [
+        {
+            "filename": "openwrt-21.02.0-x86-64-generic-ext4-combined.img",
+            "version": "21.02.0",
+            "md5sum": "1ba2a5c5c05e592c36a469a8ecd3bcf5",
+            "filesize": 126353408,
+            "download_url": "https://downloads.openwrt.org/releases/21.02.0/targets/x86/64/",
+            "direct_download_url": "https://downloads.openwrt.org/releases/21.02.0/targets/x86/64/openwrt-21.02.0-x86-64-generic-ext4-combined.img.gz",
+            "compression": "gzip"
+        },
+        {
+            "filename": "openwrt-19.07.8-x86-64-combined-ext4.img",
+            "version": "19.07.8",
+            "md5sum": "a9d9776a96968a2042484330f285cae3",
+            "filesize": 285736960,
+            "download_url": "https://downloads.openwrt.org/releases/19.07.8/targets/x86/64/",
+            "direct_download_url": "https://downloads.openwrt.org/releases/19.07.8/targets/x86/64/openwrt-19.07.8-x86-64-combined-ext4.img",
+            "compression": "gzip"
+        },
         {
             "filename": "openwrt-19.07.7-x86-64-combined-ext4.img",
             "version": "19.07.7",
@@ -168,6 +186,18 @@
         }
     ],
     "versions": [
+        {
+            "name": "21.02.0",
+            "images": {
+                "hda_disk_image": "openwrt-21.02.0-x86-64-generic-ext4-combined.img"
+            }
+        },
+        {
+            "name": "19.07.8",
+            "images": {
+                "hda_disk_image": "openwrt-19.07.8-x86-64-combined-ext4.img"
+            }
+        },
         {
             "name": "19.07.7",
             "images": {
diff --git a/gns3server/appliances/ostinato.gns3a b/gns3server/appliances/ostinato.gns3a
index 7e72c1e9..2cbd0a87 100644
--- a/gns3server/appliances/ostinato.gns3a
+++ b/gns3server/appliances/ostinato.gns3a
@@ -1,24 +1,27 @@
 {
     "name": "Ostinato",
     "category": "guest",
-    "description": "Ostinato is an open-source, cross-platform network packet crafter/traffic generator and analyzer with a friendly GUI. Craft and send packets of several streams with different protocols at different rates.",
+    "description": "Packet crafter and traffic generator for network engineers",
     "vendor_name": "Ostinato",
-    "vendor_url": "http://ostinato.org/",
-    "documentation_url": "http://ostinato.org/docs.html",
+    "vendor_url": "https://ostinato.org/",
+    "documentation_url": "https://ostinato.org/docs",
     "product_name": "Ostinato",
-    "product_url": "http://ostinato.org/",
-    "registry_version": 3,
-    "status": "experimental",
-    "maintainer": "Bernhard Ehlers",
-    "maintainer_email": "be@bernhard-ehlers.de",
-    "usage": "Use interfaces starting with eth1 as traffic interfaces, eth0 is only for the (optional) management of the server/drone.",
-    "symbol": "ostinato-3d-icon.svg",
-    "port_name_format": "eth{0}",
+    "product_url": "https://ostinato.org/",
+    "registry_version": 4,
+    "status": "stable",
+    "availability": "service-contract",
+    "maintainer": "Srivats P",
+    "maintainer_email": "support@ostinato.org",
+    "symbol": ":/symbols/affinity/circle/gray/cog.svg",
+    "first_port_name": "eth0/mgmt",
+    "port_name_format": "eth{port1}",
+    "linked_clone": true,
     "qemu": {
         "adapter_type": "e1000",
         "adapters": 4,
         "ram": 256,
-        "hda_disk_interface": "ide",
+        "cpus": 2,
+        "hda_disk_interface": "sata",
         "arch": "i386",
         "console_type": "vnc",
         "kvm": "allow",
@@ -26,33 +29,18 @@
     },
     "images": [
         {
-            "filename": "ostinato-0.9-1.qcow2",
-            "version": "0.9",
-            "md5sum": "00b4856ec9fffbcbcab7a8f757355d69",
-            "filesize": 101646336,
-            "download_url": "http://www.bernhard-ehlers.de/projects/ostinato4gns3/index.html",
-            "direct_download_url": "http://www.bernhard-ehlers.de/projects/ostinato4gns3/ostinato-0.9-1.qcow2"
-        },
-        {
-            "filename": "ostinato-0.8-1.qcow2",
-            "version": "0.8",
-            "md5sum": "12e990ba695103cfac82f8771b8015d4",
-            "filesize": 57344000,
-            "download_url": "http://www.bernhard-ehlers.de/projects/ostinato4gns3/index.html",
-            "direct_download_url": "http://www.bernhard-ehlers.de/projects/ostinato4gns3/ostinato-0.8-1.qcow2"
+            "version": "1.1",
+            "filename": "ostinatostd-1.1-1.qcow2",
+            "filesize": 134217728,
+            "md5sum": "aa027e83cefea1c38d0102eb2f28956e",
+            "download_url": "https://ostinato.org/pricing/gns3"
         }
     ],
     "versions": [
         {
-            "name": "0.9",
+            "name": "1.1",
             "images": {
-                "hda_disk_image": "ostinato-0.9-1.qcow2"
-            }
-        },
-        {
-            "name": "0.8",
-            "images": {
-                "hda_disk_image": "ostinato-0.8-1.qcow2"
+                "hda_disk_image": "ostinatostd-1.1-1.qcow2"
             }
         }
     ]
diff --git a/gns3server/appliances/vyos.gns3a b/gns3server/appliances/vyos.gns3a
index 20a1f3c3..f7157e4c 100644
--- a/gns3server/appliances/vyos.gns3a
+++ b/gns3server/appliances/vyos.gns3a
@@ -11,7 +11,7 @@
     "status": "stable",
     "maintainer": "GNS3 Team",
     "maintainer_email": "developers@gns3.net",
-    "usage": "Default username/password is vyos/vyos.\n\nAt first boot of versions 1.1.x/1.2.x the router will start from the cdrom. Login and then type \"install image\" and follow the instructions.",
+    "usage": "Default username/password is vyos/vyos.\n\nAt first boot the router will start from the cdrom. Login and then type \"install image\" and follow the instructions.",
     "symbol": "vyos.svg",
     "port_name_format": "eth{0}",
     "qemu": {
@@ -26,11 +26,12 @@
     },
     "images": [
         {
-            "filename": "vyos-1.3.0-rc5-amd64.qcow2",
-            "version": "1.3.0-rc5",
-            "md5sum": "dd704f59afc0fccdf601cc750bf2c438",
-            "filesize": 361955328,
-            "direct_download_url": "https://www.mediafire.com/file/taspgxh4vj0a4j1/vyos-1.3.0-rc5-amd64.qcow2/file"
+            "filename": "vyos-1.3.0-rc6-amd64.iso",
+            "version": "1.3.0-rc6",
+            "md5sum": "b3939f82a35b23d428ee0ad4ac8be087",
+            "filesize": 331350016,
+            "download_url": "https://vyos.net/get/snapshots/",
+            "direct_download_url": "https://s3.amazonaws.com/s3-us.vyos.io/snapshot/vyos-1.3.0-rc6/vyos-1.3.0-rc6-amd64.iso"
         },
         {
             "filename": "vyos-1.2.8-amd64.iso",
@@ -65,9 +66,10 @@
     ],
     "versions": [
         {
-            "name": "1.3.0-rc5",
+            "name": "1.3.0-rc6",
             "images": {
-                "hda_disk_image": "vyos-1.3.0-rc5-amd64.qcow2"
+                "hda_disk_image": "empty8G.qcow2",
+                "cdrom_image": "vyos-1.3.0-rc6-amd64.iso"
             }
         },
         {