diff --git a/packages/one-dark-ui/lib/main.js b/packages/one-dark-ui/lib/main.js
index 6640106168c..3b3850d9783 100644
--- a/packages/one-dark-ui/lib/main.js
+++ b/packages/one-dark-ui/lib/main.js
@@ -8,12 +8,6 @@ module.exports = {
     atom.config.observe(`${themeName}.tabCloseButton`, setTabCloseButton);
     atom.config.observe(`${themeName}.hideDockButtons`, setHideDockButtons);
     atom.config.observe(`${themeName}.stickyHeaders`, setStickyHeaders);
-
-    // DEPRECATED: This can be removed at some point (added in Atom 1.17/1.18ish)
-    // It removes `layoutMode`
-    if (atom.config.get(`${themeName}.layoutMode`)) {
-      atom.config.unset(`${themeName}.layoutMode`);
-    }
   },
 
   deactivate() {
diff --git a/packages/one-light-ui/lib/main.js b/packages/one-light-ui/lib/main.js
index f8a6a6d4943..68f545745cb 100644
--- a/packages/one-light-ui/lib/main.js
+++ b/packages/one-light-ui/lib/main.js
@@ -8,12 +8,6 @@ module.exports = {
     atom.config.observe(`${themeName}.tabCloseButton`, setTabCloseButton);
     atom.config.observe(`${themeName}.hideDockButtons`, setHideDockButtons);
     atom.config.observe(`${themeName}.stickyHeaders`, setStickyHeaders);
-
-    // DEPRECATED: This can be removed at some point (added in Atom 1.17/1.18ish)
-    // It removes `layoutMode`
-    if (atom.config.get(`${themeName}.layoutMode`)) {
-      atom.config.unset(`${themeName}.layoutMode`);
-    }
   },
 
   deactivate() {
diff --git a/script/lib/verify-machine-requirements.js b/script/lib/verify-machine-requirements.js
index ccc4a68411c..8b8420aac14 100644
--- a/script/lib/verify-machine-requirements.js
+++ b/script/lib/verify-machine-requirements.js
@@ -14,16 +14,12 @@ module.exports = function(ci) {
 function verifyNode() {
   const fullVersion = process.versions.node;
   const majorVersion = fullVersion.split('.')[0];
-  if (majorVersion >= 6) {
+  const minorVersion = fullVersion.split('.')[1];
+  if (majorVersion >= 11 || (majorVersion === '10' && minorVersion >= 12)) {
     console.log(`Node:\tv${fullVersion}`);
-  } else if (majorVersion >= 4) {
-    console.log(`Node:\tv${fullVersion}`);
-    console.warn(
-      '\tWarning: Building on Node below version 6 is deprecated. Please use Node 6.x+ to build Atom.'
-    );
   } else {
     throw new Error(
-      `node v4+ is required to build Atom. node v${fullVersion} is installed.`
+      `node v10.12+ is required to build Atom. node v${fullVersion} is installed.`
     );
   }
 }
@@ -94,7 +90,7 @@ function verifyPython() {
           env: process.env,
           stdio: ['ignore', 'pipe', 'ignore']
         });
-      } catch {}
+      } catch (e) {}
 
       if (stdout) {
         if (stdout.indexOf('+') !== -1)
diff --git a/src/grammar-registry.js b/src/grammar-registry.js
index c5973e1aa3e..aa530b6a9c4 100644
--- a/src/grammar-registry.js
+++ b/src/grammar-registry.js
@@ -169,7 +169,7 @@ module.exports = class GrammarRegistry {
   }
 
   // Extended: Get the `languageId` that has been explicitly assigned to
-  // to the given buffer, if any.
+  // the given buffer, if any.
   //
   // Returns a {String} id of the language
   getAssignedLanguageId(buffer) {
diff --git a/src/main-process/atom-application.js b/src/main-process/atom-application.js
index c969e5f55da..cea5f070b5d 100644
--- a/src/main-process/atom-application.js
+++ b/src/main-process/atom-application.js
@@ -249,16 +249,6 @@ module.exports = class AtomApplication extends EventEmitter {
 
     global.atomApplication = this;
 
-    // DEPRECATED: This can be removed at some point (added in 1.13)
-    // It converts `useCustomTitleBar: true` to `titleBar: "custom"`
-    if (
-      process.platform === 'darwin' &&
-      this.config.get('core.useCustomTitleBar')
-    ) {
-      this.config.unset('core.useCustomTitleBar');
-      this.config.set('core.titleBar', 'custom');
-    }
-
     this.applicationMenu = new ApplicationMenu(
       this.version,
       this.autoUpdateManager
diff --git a/vendor/jasmine.js b/vendor/jasmine.js
index 2cec4bf76eb..716fbeb7ed3 100644
--- a/vendor/jasmine.js
+++ b/vendor/jasmine.js
@@ -1190,16 +1190,6 @@ jasmine.Matchers = function(env, actual, spec, opt_isNot) {
   this.reportWasCalled_ = false;
 };
 
-// todo: @deprecated as of Jasmine 0.11, remove soon [xw]
-jasmine.Matchers.pp = function(str) {
-  throw new Error("jasmine.Matchers.pp() is no longer supported, please use jasmine.pp() instead!");
-};
-
-// todo: @deprecated Deprecated as of Jasmine 0.10. Rewrite your custom matchers to return true or false. [xw]
-jasmine.Matchers.prototype.report = function(result, failing_message, details) {
-  throw new Error("As of jasmine 0.11, custom matchers must be implemented differently -- please see jasmine docs");
-};
-
 jasmine.Matchers.wrapInto_ = function(prototype, matchersClass) {
   for (var methodName in prototype) {
     if (methodName == 'report') continue;