diff --git a/Casks/bwana.rb b/Casks/bwana.rb
index f3b3fc3b7b..3b6926742d 100644
--- a/Casks/bwana.rb
+++ b/Casks/bwana.rb
@@ -6,6 +6,11 @@ cask "bwana" do
   name "Bwana"
   homepage "https://www.bruji.com/bwana/"
 
+  livecheck do
+    url :homepage
+    regex(/Version\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "Bwana.app"
 
   zap trash: [
diff --git a/Casks/charlessoft-timetracker.rb b/Casks/charlessoft-timetracker.rb
index 4670a214e5..6ec91509ec 100644
--- a/Casks/charlessoft-timetracker.rb
+++ b/Casks/charlessoft-timetracker.rb
@@ -7,4 +7,8 @@ cask "charlessoft-timetracker" do
   homepage "https://charlessoft.com/"
 
   app "TimeTracker.app"
+
+  caveats do
+    discontinued
+  end
 end
diff --git a/Casks/dbkoda.rb b/Casks/dbkoda.rb
index 2307d9fad8..8ad63668f0 100644
--- a/Casks/dbkoda.rb
+++ b/Casks/dbkoda.rb
@@ -7,6 +7,11 @@ cask "dbkoda" do
   name "dbKoda"
   homepage "https://www.dbkoda.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "dbKoda.app"
 
   zap trash: [
diff --git a/Casks/droidid.rb b/Casks/droidid.rb
index 98fbb67bc0..2c80a94a0e 100644
--- a/Casks/droidid.rb
+++ b/Casks/droidid.rb
@@ -6,5 +6,10 @@ cask "droidid" do
   name "DroidID"
   homepage "https://www.suyashsrijan.com/droidid/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "DroidID.app"
 end
diff --git a/Casks/emacsclient.rb b/Casks/emacsclient.rb
index c7904552b2..fc163be929 100644
--- a/Casks/emacsclient.rb
+++ b/Casks/emacsclient.rb
@@ -7,5 +7,10 @@ cask "emacsclient" do
   desc "Chrome/Firefox extension that facilitates org-capture in emacs"
   homepage "https://github.com/sprig/org-capture-extension"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "EmacsClient.app"
 end
diff --git a/Casks/gitscout.rb b/Casks/gitscout.rb
index df3f811967..b2c1295855 100644
--- a/Casks/gitscout.rb
+++ b/Casks/gitscout.rb
@@ -6,6 +6,11 @@ cask "gitscout" do
   name "Gitscout"
   homepage "https://gitscout.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Gitscout.app"
 
   zap trash: [
diff --git a/Casks/happymac.rb b/Casks/happymac.rb
index 0a5067410c..549a1f2c26 100644
--- a/Casks/happymac.rb
+++ b/Casks/happymac.rb
@@ -8,6 +8,11 @@ cask "happymac" do
   desc "Watches, suspends and resumes background processes that slow down your system"
   homepage "https://www.happymac.app/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   depends_on macos: ">= :sierra"
 
   app "happymac.app"
diff --git a/Casks/ibabel.rb b/Casks/ibabel.rb
index c6665a4ef6..3c3ddd61b8 100644
--- a/Casks/ibabel.rb
+++ b/Casks/ibabel.rb
@@ -1,10 +1,17 @@
 cask "ibabel" do
-  version "3.6"
+  version "5.0.3,1"
   sha256 :no_check
 
-  url "https://macinchem.org/ibabel/iBabel.zip"
+  url "https://macinchem.org/ibabel/version#{version.major}/iBabel.zip"
   name "iBabel"
   homepage "https://www.macinchem.org/ibabel/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
+  depends_on formula: "open-babel"
+
   app "iBabel.app"
 end
diff --git a/Casks/ibackupbot.rb b/Casks/ibackupbot.rb
index 7a749c0f94..9e06dbc208 100644
--- a/Casks/ibackupbot.rb
+++ b/Casks/ibackupbot.rb
@@ -6,5 +6,10 @@ cask "ibackupbot" do
   name "iBackupBot"
   homepage "https://www.icopybot.com/itunes-backup-manager.htm"
 
+  livecheck do
+    url :homepage
+    regex(/V\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "iBackupBot.app"
 end
diff --git a/Casks/idisplay.rb b/Casks/idisplay.rb
index f2dac9f917..be35e5d72b 100644
--- a/Casks/idisplay.rb
+++ b/Casks/idisplay.rb
@@ -1,19 +1,23 @@
 cask "idisplay" do
-  version :latest
+  version "3.5.0"
   sha256 :no_check
 
-  url "http://getidisplay.com/downloads/iDisplayMac.dmg"
+  url "https://getidisplay.com/downloads/iDisplayMac.dmg"
   name "iDisplay"
   homepage "http://getidisplay.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   pkg "iDisplay.pkg"
 
-  uninstall launchctl: "ag.shape.MSMToolHelper",
-            pkgutil:   [
-              "ag.shape.iDisplay.pkg",
-              "ag.shape.MSM*.pkg",
-            ],
-            signal:    ["TERM", "com.shapeservices.idisplay-host-full"]
+  uninstall pkgutil: [
+    "com.shapeservices.idisplay-host-full",
+    "com.shapeservices.msm.driver.MSMFramebuffer",
+    "com.shapeservices.msm.driver.MSMVideoDevice",
+  ]
 
   zap trash: "~/Library/Preferences/com.shapeservices.idisplay-host-full.plist"
 
diff --git a/Casks/imo.rb b/Casks/imo.rb
index 2f3851a0b6..18fed1a0e4 100644
--- a/Casks/imo.rb
+++ b/Casks/imo.rb
@@ -1,10 +1,18 @@
 cask "imo" do
   version "1.2.1"
-  sha256 :no_check
+  sha256 "bfd2d5c09af58a2c0b68a09f6c49165ab9ad4ce8d86546ea16afe6f8d9fad8c6"
 
-  url "https://imo.im/macosapp/current/Imo.dmg"
+  url "https://static-web.imoim.net/as/indigo-static/macos/#{version}/Imo.dmg",
+      verified: "imoim.net"
   name "Imo Messanger"
   homepage "https://imo.im/"
 
   app "Imo.app"
+
+  caveats do
+    discontinued
+    <<~EOS
+      Newer version is only available in Mac App Store.
+    EOS
+  end
 end
diff --git a/Casks/ip-in-menu-bar.rb b/Casks/ip-in-menu-bar.rb
index 5d4d832f93..48acce7ac9 100644
--- a/Casks/ip-in-menu-bar.rb
+++ b/Casks/ip-in-menu-bar.rb
@@ -1,5 +1,5 @@
 cask "ip-in-menu-bar" do
-  version "4.6.1.0.44"
+  version "4.6"
   sha256 :no_check
 
   url "https://www.monkeybreadsoftware.de/Software/IPinmenubar.dmg"
@@ -7,5 +7,10 @@ cask "ip-in-menu-bar" do
   desc "Shows current IP address in menu bar"
   homepage "https://www.monkeybreadsoftware.de/Software/IPinmenubar.shtml"
 
+  livecheck do
+    url :homepage
+    regex(/IP\s+in\s+menubar\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "IP in menu bar.app"
 end
diff --git a/Casks/ivolume.rb b/Casks/ivolume.rb
index cbe2cec2be..2b92167872 100644
--- a/Casks/ivolume.rb
+++ b/Casks/ivolume.rb
@@ -1,12 +1,17 @@
 cask "ivolume" do
-  version "3.9.0,2260"
+  version "3.9.0"
   sha256 :no_check
 
-  url "https://www.mani.de/download/ivolume/iVolume3Mac.dmg"
+  url "https://www.mani.de/download/ivolume/iVolume#{version.major}Mac.dmg"
   name "iVolume"
   desc "App to ensures that all songs are played at the same volume level"
   homepage "https://www.mani.de/en/ivolume/"
 
+  livecheck do
+    url "https://www.mani.de/en/ivolume/history.html"
+    regex(/iVolume\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "iVolume.app"
 
   zap trash: [
diff --git a/Casks/launchpad-manager.rb b/Casks/launchpad-manager.rb
index fdcfb09bb8..fc055f2099 100644
--- a/Casks/launchpad-manager.rb
+++ b/Casks/launchpad-manager.rb
@@ -7,6 +7,11 @@ cask "launchpad-manager" do
   desc "Tool to manage the launchpad"
   homepage "http://launchpadmanager.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Launchpad Manager.app"
 
   zap trash: [
diff --git a/Casks/monity-helper.rb b/Casks/monity-helper.rb
index 352d664350..6e3c3744d1 100644
--- a/Casks/monity-helper.rb
+++ b/Casks/monity-helper.rb
@@ -1,11 +1,16 @@
 cask "monity-helper" do
-  version "1.2.5,50"
+  version "1.2.5"
   sha256 :no_check
 
   url "https://www.monityapp.com/download/MonityHelper.pkg"
   name "Monity Helper"
   homepage "https://www.monityapp.com/"
 
+  livecheck do
+    url :homepage
+    regex(/Version:\s+(\d+(?:\.\d+)+)/i)
+  end
+
   pkg "MonityHelper.pkg"
 
   uninstall quit:      "com.Monity.Helper",
diff --git a/Casks/movist.rb b/Casks/movist.rb
index 67cd0bca27..ae5edf630a 100644
--- a/Casks/movist.rb
+++ b/Casks/movist.rb
@@ -7,5 +7,10 @@ cask "movist" do
   desc "Movie Player based on QuickTime & FFmpeg"
   homepage "https://github.com/samiamwork/Movist"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Movist.app"
 end
diff --git a/Casks/noisy.rb b/Casks/noisy.rb
index 0afefeee13..996f1d7b39 100644
--- a/Casks/noisy.rb
+++ b/Casks/noisy.rb
@@ -10,4 +10,8 @@ cask "noisy" do
   app "Noisy.app"
 
   zap trash: "~/Library/Preferences/com.rathertremendous.noisy.plist"
+
+  caveats do
+    discontinued
+  end
 end
diff --git a/Casks/nsregextester.rb b/Casks/nsregextester.rb
index fca5f87c54..7a25260018 100644
--- a/Casks/nsregextester.rb
+++ b/Casks/nsregextester.rb
@@ -7,5 +7,10 @@ cask "nsregextester" do
   name "NSRegexTester"
   homepage "https://github.com/aaronvegh/nsregextester"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "NSRegexTester.app"
 end
diff --git a/Casks/opera-neon.rb b/Casks/opera-neon.rb
index 55b50008b1..fdbee2a494 100644
--- a/Casks/opera-neon.rb
+++ b/Casks/opera-neon.rb
@@ -6,6 +6,11 @@ cask "opera-neon" do
   name "Opera Neon"
   homepage "https://www.opera.com/computer/neon"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Opera Neon.app"
 
   zap trash: [
diff --git a/Casks/pages-data-merge.rb b/Casks/pages-data-merge.rb
index 7a0c944953..13d00fd6a8 100644
--- a/Casks/pages-data-merge.rb
+++ b/Casks/pages-data-merge.rb
@@ -7,5 +7,10 @@ cask "pages-data-merge" do
   name "Pages Data Merge"
   homepage "https://iworkautomation.com/pages/script-tags-data-merge.html"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Pages Data Merge.app"
 end
diff --git a/Casks/pokemon-showdown.rb b/Casks/pokemon-showdown.rb
index e684380d1b..e12ff50694 100644
--- a/Casks/pokemon-showdown.rb
+++ b/Casks/pokemon-showdown.rb
@@ -6,5 +6,10 @@ cask "pokemon-showdown" do
   name "Pokémon Showdown"
   homepage "https://pokemonshowdown.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Pokemon Showdown.app"
 end
diff --git a/Casks/private-eye.rb b/Casks/private-eye.rb
index 841ea357cb..05c22d5a28 100644
--- a/Casks/private-eye.rb
+++ b/Casks/private-eye.rb
@@ -6,6 +6,11 @@ cask "private-eye" do
   name "Private Eye"
   homepage "https://radiosilenceapp.com/private-eye"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   pkg "Private_Eye_for_OS_X_10.9_and_later.pkg"
 
   # We intentionally unload the kext twice as a workaround
diff --git a/Casks/quickhue.rb b/Casks/quickhue.rb
index 1824818a93..3ee8e36271 100644
--- a/Casks/quickhue.rb
+++ b/Casks/quickhue.rb
@@ -7,6 +7,11 @@ cask "quickhue" do
   desc "Menu bar utility for controlling the Philips Hue lighting system"
   homepage "https://github.com/danparsons/QuickHue"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "QuickHue.app"
 
   zap trash: [
diff --git a/Casks/r-name.rb b/Casks/r-name.rb
index b02d1a35e4..c9f5dbf1f5 100644
--- a/Casks/r-name.rb
+++ b/Casks/r-name.rb
@@ -6,5 +6,10 @@ cask "r-name" do
   name "R-Name"
   homepage "https://www.jacek-dom.net/software/R-Name/"
 
+  livecheck do
+    url :homepage
+    regex(/version\s+.*?(\d+(?:\.\d+)+)/i)
+  end
+
   app "R-Name.app"
 end
diff --git a/Casks/regexhibit.rb b/Casks/regexhibit.rb
index 8421d9aef6..57de3ebe15 100644
--- a/Casks/regexhibit.rb
+++ b/Casks/regexhibit.rb
@@ -7,6 +7,11 @@ cask "regexhibit" do
   desc "Perl regex assistant"
   homepage "https://roger-jolly.nl/software/#regexhibit"
 
+  livecheck do
+    url :homepage
+    regex(/RegExhibit\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "RegExhibit.app"
 
   zap trash: [
diff --git a/Casks/safeincloud-password-manager.rb b/Casks/safeincloud-password-manager.rb
index 79ace6f03a..040d6829c3 100644
--- a/Casks/safeincloud-password-manager.rb
+++ b/Casks/safeincloud-password-manager.rb
@@ -7,5 +7,10 @@ cask "safeincloud-password-manager" do
   desc "Cross-platform AES-256 password manager"
   homepage "https://www.safe-in-cloud.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "SafeInCloud Password Manager.app"
 end
diff --git a/Casks/serial-tools.rb b/Casks/serial-tools.rb
index ecbf8be5b7..3367a2c390 100644
--- a/Casks/serial-tools.rb
+++ b/Casks/serial-tools.rb
@@ -6,5 +6,10 @@ cask "serial-tools" do
   name "Serial Tools"
   homepage "https://www.w7ay.net/site/Applications/Serial%20Tools/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Serial Tools.app"
 end
diff --git a/Casks/shortcutdetective.rb b/Casks/shortcutdetective.rb
index 1d556f8b5e..9c83546ae0 100644
--- a/Casks/shortcutdetective.rb
+++ b/Casks/shortcutdetective.rb
@@ -7,6 +7,11 @@ cask "shortcutdetective" do
   desc "Detects which app receives a keyboard shortcut (hotkey)"
   homepage "https://www.irradiatedsoftware.com/labs/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "ShortcutDetective.app"
 
   zap trash: "~/Library/Preferences/com.irradiatedsoftware.ShortcutDetective.plist"
diff --git a/Casks/sixtyforce.rb b/Casks/sixtyforce.rb
index e420599802..17ea91d428 100644
--- a/Casks/sixtyforce.rb
+++ b/Casks/sixtyforce.rb
@@ -7,6 +7,11 @@ cask "sixtyforce" do
   desc "N64 emulator"
   homepage "https://sixtyforce.com/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "sixtyforce.app"
 
   zap trash: [
diff --git a/Casks/sneek.rb b/Casks/sneek.rb
index f4bae310f4..0eb2eb3178 100644
--- a/Casks/sneek.rb
+++ b/Casks/sneek.rb
@@ -7,5 +7,10 @@ cask "sneek" do
   name "Sneek"
   homepage "https://sneek.io/"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Sneek.app"
 end
diff --git a/Casks/teambition.rb b/Casks/teambition.rb
index 125a8235a8..2456ab2fea 100644
--- a/Casks/teambition.rb
+++ b/Casks/teambition.rb
@@ -1,12 +1,17 @@
 cask "teambition" do
-  version "1.11"
+  version "2.0.3"
   sha256 :no_check
 
-  url "https://dn-clients.teambition.net/Teambition-latest-darwin.dmg",
-      verified: "dn-clients.teambition.net/"
+  url "https://tongyongxiezuo.oss-cn-zhangjiakou.aliyuncs.com/desktop/Teambition/#{version}/installer/darwin/x64/Teambition-#{version}-mac.dmg",
+      verified: "tongyongxiezuo.oss-cn-zhangjiakou.aliyuncs.com/desktop/Teambition/"
   name "Teambition"
   homepage "https://www.teambition.com/"
 
+  livecheck do
+    url "https://www.teambition.com/site/client-config"
+    regex(/Teambition[-_.](\d+(?:\.\d+)+)[-_.]mac\.dmg/i)
+  end
+
   app "Teambition.app"
 
   zap trash: [
diff --git a/Casks/tofu.rb b/Casks/tofu.rb
index c013ccefcf..6ffa8938b7 100644
--- a/Casks/tofu.rb
+++ b/Casks/tofu.rb
@@ -6,5 +6,10 @@ cask "tofu" do
   name "Tofu"
   homepage "https://amarsagoo.info/tofu/"
 
+  livecheck do
+    url :homepage
+    regex(/Version\s+(\d+(?:\.\d+)+)/i)
+  end
+
   app "Tofu.app"
 end
diff --git a/Casks/twilioquest.rb b/Casks/twilioquest.rb
index 8ae7688e9e..80cd5b2c0c 100644
--- a/Casks/twilioquest.rb
+++ b/Casks/twilioquest.rb
@@ -20,4 +20,8 @@ cask "twilioquest" do
     "~/Library/Preferences/com.electron.twilioquest.plist",
     "~/Library/Saved Application State/com.electron.twilioquest.savedState",
   ]
+
+  caveats do
+    discontinued
+  end
 end
diff --git a/Casks/vpn-enabler.rb b/Casks/vpn-enabler.rb
index ca36d7b607..9c1eb8d51f 100644
--- a/Casks/vpn-enabler.rb
+++ b/Casks/vpn-enabler.rb
@@ -10,7 +10,7 @@ cask "vpn-enabler" do
     url "https://cutedgesystems.com/downloads/VPNEnablerForSierra.zip"
   end
   on_high_sierra :or_newer do
-    version "5.2,1"
+    version "5.2"
     sha256 :no_check
     url "https://cutedgesystems.com/downloads/VPNEnablerForHighSierra.zip"
   end
@@ -22,4 +22,11 @@ cask "vpn-enabler" do
   depends_on macos: ">= :el_capitan"
 
   app "VPN Enabler.app"
+
+  caveats do
+    discontinued
+    <<~EOS
+      Download for newer version is walled.
+    EOS
+  end
 end
diff --git a/Casks/zoho-docs.rb b/Casks/zoho-docs.rb
index 7ac0f4272b..a3350358c8 100644
--- a/Casks/zoho-docs.rb
+++ b/Casks/zoho-docs.rb
@@ -8,5 +8,10 @@ cask "zoho-docs" do
   desc "Sync files to/from Zoho Docs"
   homepage "https://www.zoho.com/docs/desktop-sync.html"
 
+  livecheck do
+    url :url
+    strategy :extract_plist
+  end
+
   app "Zoho Docs.app"
 end