diff --git a/.travis.yml b/.travis.yml
index 12a9694..de72fb0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,8 @@
 language: node_js
-
 node_js:
   - "node"
-
 install:
   - cd validation
-  - npm install
+  - yarn install
 script:
   - node app.js
diff --git a/games/cave-story-plus/game.dat b/games/cave-story-plus/game.dat
index 968ac28..a363a0e 100644
--- a/games/cave-story-plus/game.dat
+++ b/games/cave-story-plus/game.dat
@@ -10,6 +10,7 @@ title = "0100B7D0022EE000"
 region = "usa"
 release_date = "2017-06-20"
 
+[[ releases ]]
 title = "0100B7D0022EE000"
 region = "eur"
 release_date = "2017-07-20"
diff --git a/games/one-piece-unlimited-world-red-deluxe/game.dat b/games/one-piece-unlimited-world-red-deluxe/game.dat
index 6c79b58..ae877a4 100644
--- a/games/one-piece-unlimited-world-red-deluxe/game.dat
+++ b/games/one-piece-unlimited-world-red-deluxe/game.dat
@@ -10,10 +10,12 @@ title = "0100574002AF4000"
 region = "jpn"
 release_date = "2017-08-24"
 
+[[ releases ]]
 title = "0100574002AF4000"
 region = "eur"
 release_date = "2017-09-29"
 
+[[ releases ]]
 title = "0100574002AF4000"
 region = "usa"
 release_date = "2017-09-29"
diff --git a/games/puyo-puyo-tetris/game.dat b/games/puyo-puyo-tetris/game.dat
index 96d0740..122070d 100644
--- a/games/puyo-puyo-tetris/game.dat
+++ b/games/puyo-puyo-tetris/game.dat
@@ -10,10 +10,12 @@ title = "010073C001D5E000"
 region = "usa"
 release_date = "2017-04-25"
 
+[[ releases ]]
 title = "0100F3D001DEE000"
 region = "eur"
 release_date = "2017-04-28"
 
+[[ releases ]]
 title = "010053D0001BE000"
 region = "jpn"
 release_date = "2017-03-03"
diff --git a/games/the-binding-of-isaac-afterbirth-plus/game.dat b/games/the-binding-of-isaac-afterbirth-plus/game.dat
index 2a28248..f521835 100644
--- a/games/the-binding-of-isaac-afterbirth-plus/game.dat
+++ b/games/the-binding-of-isaac-afterbirth-plus/game.dat
@@ -10,6 +10,7 @@ title = "010021C000B6A000"
 region = "usa"
 release_date = "2017-03-17"
 
+[[ releases ]]
 title = "0100F8A004458000"
 region = "eur"
 release_date = "2017-03-17"
diff --git a/validation/app.js b/validation/app.js
index 07f3b14..4312fc9 100644
--- a/validation/app.js
+++ b/validation/app.js
@@ -214,59 +214,6 @@ function validateTOML(path) {
     } else {
         validationError("No releases.")
     }
-
-    let maxCompatibility = 999;
-
-    // Check each testcase individually
-    if (tomlDoc["testcases"] !== undefined) {
-        section = tomlDoc["testcases"];
-        section.forEach(testcase => {
-            validateContents(testcase, "title", field => {
-                if (field.length !== 16) {
-                    validationError(`Testcase: Game title ID has an invalid length`);
-                } else if (!field.match(/^([A-Z0-9]){16}$/)) {
-                    validationError(`Testcase: Game title ID is not a hexadecimal ID`);
-                }
-            });
-
-            validateNotEmpty(testcase, "compatibility");
-            if (testcase["compatibility"] !== undefined) {
-                let compat = parseInt(testcase["compatibility"]);
-                if (compat < maxCompatibility) {
-                    maxCompatibility = compat;
-                }
-            }
-
-            validateIsDate(testcase, "date");
-            validateContents(testcase, "version", test => {
-                if (test.length !== 12) {
-                    validationError(`Testcase: Version is of incorrect length`);
-                } else if (!test.startsWith("HEAD-")) {
-                    validationError(`Testcase: Unknown version commit source`);
-                }
-            });
-            validateNotEmpty(testcase, "author");
-
-            validateNotEmpty(testcase, "cpu");
-            validateNotEmpty(testcase, "gpu");
-            validateNotEmpty(testcase, "os");
-        });
-        
-        // Validate dates are properly ordered
-        section.reduce(function(previousValue, currentValue) {
-            if (typeof previousValue === "undefined" || previousValue.date <= currentValue.date) {
-                return currentValue;
-            }
-            validationError("Test case dates are not properly sorted in ascending order.");
-        });
-    }
-
-    // We only check these if we have a known test result (we cannot know if a game needs
-    //  resources if it doesn't even run!)
-    if (maxCompatibility < 5) {
-        validateIsBoolean(tomlDoc, "needs_system_files");
-        validateIsBoolean(tomlDoc, "needs_shared_font");
-    }
 }
 
 /// Validates the basic structure of a save game's TOML. Assumes it exists.
@@ -370,7 +317,9 @@ getDirectories(config.directory).forEach(function (game) {
         });
 
         // Verify the game's boxart.
-        validateImage(`${inputDirectoryGame}/${config.boxart.filename}`, config.boxart);
+        if (config.boxart) {
+            validateImage(`${inputDirectoryGame}/${config.boxart.filename}`, config.boxart);
+        }
 
         // Verify the game's image.
         validateImage(`${inputDirectoryGame}/${config.icon.filename}`, config.icon);
@@ -380,7 +329,7 @@ getDirectories(config.directory).forEach(function (game) {
 
         // Verify the game's screenshots.
         validateDirImages(`${inputDirectoryGame}/${config.screenshots.dirname}`,
-                            config.screenshots);
+                        config.screenshots);
 
         // Verify the game's save files.
         validateSaves(`${inputDirectoryGame}/${config.saves.dirname}`);
diff --git a/validation/yarn.lock b/validation/yarn.lock
new file mode 100644
index 0000000..88bc9b2
--- /dev/null
+++ b/validation/yarn.lock
@@ -0,0 +1,52 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+component-props@*:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/component-props/-/component-props-1.1.1.tgz#f9b7df9b9927b6e6d97c9bd272aa867670f34944"
+
+file-type@^4.1.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/file-type/-/file-type-4.4.0.tgz#1b600e5fca1fbdc6e80c0a70c71c8dba5f7906c5"
+
+group-by@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/group-by/-/group-by-0.0.1.tgz#857620575f6714786f8d86bb19fd13e188dd68a4"
+  dependencies:
+    to-function "*"
+
+image-size@^0.5.4:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/image-size/-/image-size-0.5.5.tgz#09dfd4ab9d20e29eb1c3e80b8990378df9e3cb9c"
+
+image-type@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/image-type/-/image-type-3.0.0.tgz#1502af3135f906e122c877c31e94af7b7a9146c5"
+  dependencies:
+    file-type "^4.1.0"
+
+pify@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+
+read-chunk@latest:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/read-chunk/-/read-chunk-2.1.0.tgz#6a04c0928005ed9d42e1a6ac5600e19cbc7ff655"
+  dependencies:
+    pify "^3.0.0"
+    safe-buffer "^5.1.1"
+
+safe-buffer@^5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+
+to-function@*:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/to-function/-/to-function-2.0.6.tgz#7d56cd9c3b92fa8dbd7b22e83d51924de740ebc5"
+  dependencies:
+    component-props "*"
+
+toml@^2.3.2:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/toml/-/toml-2.3.3.tgz#8d683d729577cb286231dfc7a8affe58d31728fb"