diff --git a/docs/3.x.x/en/SUMMARY.md b/docs/3.x.x/en/SUMMARY.md
index 9fd3979f28..66da253e4b 100644
--- a/docs/3.x.x/en/SUMMARY.md
+++ b/docs/3.x.x/en/SUMMARY.md
@@ -20,6 +20,7 @@
 * [Configurations](configurations/configurations.md)
 * [Controllers](guides/controllers.md)
 * [Deployment](guides/deployment.md)
+* [Email](guides/email.md)
 * [File Upload](guides/upload.md)
 * [Filters](guides/filters.md)
 * [GraphQL](guides/graphql.md)
@@ -55,9 +56,4 @@
 * [Table of contents](tutorials/README.md)
 
 ### Migration
-* [Migrating from v1 to v3](migration/migration-guide.md)
-* [Migrating from 3.0.0-alpha.7.4 to 3.0.0-alpha.8](migration/migration-guide-alpha-7-4-to-alpha-8.md)
-* [Migrating from 3.0.0-alpha.8 to 3.0.0-alpha.9](migration/migration-guide-alpha-8-to-alpha-9.md)
-* [Migrating from 3.0.0-alpha.9 to 3.0.0-alpha.10](migration/migration-guide-alpha-9-to-alpha-10.md)
-* [Migrating from 3.0.0-alpha.10 to 3.0.0-alpha.11](migration/migration-guide-alpha-10-to-alpha-11.md)
-* [Migrating from 3.0.0-alpha.11 to 3.0.0-alpha.12](migration/migration-guide-alpha-11-to-alpha-12.md)
+* [Migration guides](https://github.com/strapi/strapi/wiki)
diff --git a/docs/3.x.x/en/guides/email.md b/docs/3.x.x/en/guides/email.md
new file mode 100644
index 0000000000..b9edddd7f8
--- /dev/null
+++ b/docs/3.x.x/en/guides/email.md
@@ -0,0 +1,34 @@
+# Email
+
+> ⚠️  This feature requires the Email plugin (installed by default).
+
+Thanks to the plugin `Email`, you can send email on your server or externals providers such as Sendgrid.
+
+## Usage
+
+```js
+await strapi.plugins['email'].services.email.send({
+  to: 'admin@strapi.io',
+  from: 'robbot@strapi.io',
+  replyTo: 'no-reply@strapi.io',
+  subject: 'Use strapi email provider successfully',
+  text: 'Hello world!',
+  html: 'Hello world!'
+});
+```
+
+## Install providers
+
+By default Strapi provides a local email system. You might want to send email with Sendgrid or another provider.
+
+To install a new provider run:
+
+```
+$ npm install strapi-email-sendgrid@alpha --save
+```
+
+We have two providers available `strapi-email-sendgrid` and `strapi-upload-mailgun`, use the alpha tag to install one of them. Then, visit `/admin/plugins/email/configurations/development` and configure the provider.
+
+If you want to create your own, make sure the name starts with `strapi-email-` (duplicating an existing one will be easier to create), modify the `auth` config object and customize the `send` functions.
+
+Check all community providers available on npmjs.org - [Providers list](https://www.npmjs.com/search?q=strapi-email-)
\ No newline at end of file
diff --git a/docs/3.x.x/en/guides/upload.md b/docs/3.x.x/en/guides/upload.md
index d018798156..eae41c75f4 100644
--- a/docs/3.x.x/en/guides/upload.md
+++ b/docs/3.x.x/en/guides/upload.md
@@ -136,3 +136,5 @@ $ npm install strapi-upload-aws-s3@alpha --save
 We have two providers available `strapi-upload-aws-s3` and `strapi-upload-cloudinary`, use the alpha tag to install one of them. Then, visit `/admin/plugins/upload/configurations/development` and configure the provider.
 
 If you want to create your own, make sure the name starts with `strapi-upload-` (duplicating an existing one will be easier to create), modify the `auth` config object and customize the `upload` and `delete` functions.
+
+Check all community providers available on npmjs.org - [Providers list](https://www.npmjs.com/search?q=strapi-upload-)
diff --git a/package.json b/package.json
index 2a71d5cd5b..4e3df4082c 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "dependencies": {},
   "devDependencies": {
     "assert": "~1.3.0",
diff --git a/packages/strapi-admin/package.json b/packages/strapi-admin/package.json
index 347d2890b6..402f1cb8bb 100755
--- a/packages/strapi-admin/package.json
+++ b/packages/strapi-admin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-admin",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Strapi Admin",
   "repository": {
     "type": "git",
@@ -31,8 +31,8 @@
   },
   "devDependencies": {
     "sanitize.css": "^4.1.0",
-    "strapi-helper-plugin": "3.0.0-alpha.12.4",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5",
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi",
diff --git a/packages/strapi-bookshelf/package.json b/packages/strapi-bookshelf/package.json
index e72e399190..ee79562b86 100755
--- a/packages/strapi-bookshelf/package.json
+++ b/packages/strapi-bookshelf/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-bookshelf",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Bookshelf hook for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -20,8 +20,8 @@
     "inquirer": "^5.2.0",
     "lodash": "^4.17.4",
     "pluralize": "^6.0.0",
-    "strapi-knex": "3.0.0-alpha.12.4",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-knex": "3.0.0-alpha.12.5",
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "strapi": {
     "isHook": true,
diff --git a/packages/strapi-ejs/package.json b/packages/strapi-ejs/package.json
index cf2f145085..77d4559143 100755
--- a/packages/strapi-ejs/package.json
+++ b/packages/strapi-ejs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-ejs",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "EJS hook for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-email-mailgun/package.json b/packages/strapi-email-mailgun/package.json
index fc74b30b97..c7aea6e301 100644
--- a/packages/strapi-email-mailgun/package.json
+++ b/packages/strapi-email-mailgun/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-email-mailgun",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Mailgun provider for strapi email plugin",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-email-sendgrid/package.json b/packages/strapi-email-sendgrid/package.json
index daf57caacc..acd5ba90ec 100644
--- a/packages/strapi-email-sendgrid/package.json
+++ b/packages/strapi-email-sendgrid/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-email-sendgrid",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Sendgrid provider for strapi email",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-email-sendmail/package.json b/packages/strapi-email-sendmail/package.json
index f1a3aa1a6d..0f9f8e795b 100644
--- a/packages/strapi-email-sendmail/package.json
+++ b/packages/strapi-email-sendmail/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-email-sendmail",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Sendmail provider for strapi email",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-admin/package.json b/packages/strapi-generate-admin/package.json
index 14a0c5d48f..491850aab8 100755
--- a/packages/strapi-generate-admin/package.json
+++ b/packages/strapi-generate-admin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-admin",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate the default admin panel for a Strapi application.",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -15,7 +15,7 @@
   "dependencies": {
     "fs-extra": "^4.0.1",
     "lodash": "^4.17.4",
-    "strapi-admin": "3.0.0-alpha.12.4"
+    "strapi-admin": "3.0.0-alpha.12.5"
   },
   "author": {
     "email": "hi@strapi.io",
diff --git a/packages/strapi-generate-api/package.json b/packages/strapi-generate-api/package.json
index 172c044997..1404381029 100755
--- a/packages/strapi-generate-api/package.json
+++ b/packages/strapi-generate-api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-api",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate an API for a Strapi application.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-controller/package.json b/packages/strapi-generate-controller/package.json
index 7d5b569cfc..9dee4e4a63 100755
--- a/packages/strapi-generate-controller/package.json
+++ b/packages/strapi-generate-controller/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-controller",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate a controller for a Strapi API.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-model/package.json b/packages/strapi-generate-model/package.json
index 3d24516cd3..4d8d76498d 100755
--- a/packages/strapi-generate-model/package.json
+++ b/packages/strapi-generate-model/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-model",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate a model for a Strapi API.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-new/package.json b/packages/strapi-generate-new/package.json
index dee6138edc..6e1731cfe9 100755
--- a/packages/strapi-generate-new/package.json
+++ b/packages/strapi-generate-new/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-new",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate a new Strapi application.",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -17,7 +17,7 @@
     "fs-extra": "^4.0.0",
     "inquirer": "^4.0.2",
     "lodash": "^4.17.4",
-    "strapi-utils": "3.0.0-alpha.12.4",
+    "strapi-utils": "3.0.0-alpha.12.5",
     "uuid": "^3.1.0"
   },
   "scripts": {
diff --git a/packages/strapi-generate-plugin/package.json b/packages/strapi-generate-plugin/package.json
index dd4eeb0cf4..914e935994 100755
--- a/packages/strapi-generate-plugin/package.json
+++ b/packages/strapi-generate-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-plugin",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate an plugin for a Strapi application.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-policy/package.json b/packages/strapi-generate-policy/package.json
index 055647a0bf..fd8619d9f6 100755
--- a/packages/strapi-generate-policy/package.json
+++ b/packages/strapi-generate-policy/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-policy",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate a policy for a Strapi API.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate-service/package.json b/packages/strapi-generate-service/package.json
index 427392b19f..1dd6329ced 100755
--- a/packages/strapi-generate-service/package.json
+++ b/packages/strapi-generate-service/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate-service",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Generate a service for a Strapi API.",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-generate/package.json b/packages/strapi-generate/package.json
index 8dbe9cc695..e01317cc49 100755
--- a/packages/strapi-generate/package.json
+++ b/packages/strapi-generate/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-generate",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Master of ceremonies for the Strapi generators.",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -17,7 +17,7 @@
     "fs-extra": "^4.0.0",
     "lodash": "^4.17.4",
     "reportback": "^2.0.1",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-helper-plugin/package.json b/packages/strapi-helper-plugin/package.json
index e6016f8293..ec0519f900 100755
--- a/packages/strapi-helper-plugin/package.json
+++ b/packages/strapi-helper-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-helper-plugin",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Helper for Strapi plugins development",
   "engines": {
     "node": ">= 9.0.0",
diff --git a/packages/strapi-knex/package.json b/packages/strapi-knex/package.json
index 0661bf7f33..6e06e5522d 100755
--- a/packages/strapi-knex/package.json
+++ b/packages/strapi-knex/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-knex",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Knex hook for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-lint/package.json b/packages/strapi-lint/package.json
index 8cdb40d9c3..2cdc5c346c 100644
--- a/packages/strapi-lint/package.json
+++ b/packages/strapi-lint/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-lint",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Strapi eslint and prettier configurations",
   "directories": {
     "lib": "lib"
diff --git a/packages/strapi-middleware-views/package.json b/packages/strapi-middleware-views/package.json
index 4ec24133d6..c4368e0bb4 100755
--- a/packages/strapi-middleware-views/package.json
+++ b/packages/strapi-middleware-views/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-middleware-views",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Views hook to enable server-side rendering for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-mongoose/lib/utils/index.js b/packages/strapi-mongoose/lib/utils/index.js
index 4661cdaa68..f36bf888ad 100755
--- a/packages/strapi-mongoose/lib/utils/index.js
+++ b/packages/strapi-mongoose/lib/utils/index.js
@@ -11,7 +11,7 @@ module.exports = mongoose => {
     convertType: mongooseType => {
       switch (mongooseType.toLowerCase()) {
         case 'array':
-          return 'Array';
+          return Array;
         case 'boolean':
           return 'Boolean';
         case 'binary':
diff --git a/packages/strapi-mongoose/package.json b/packages/strapi-mongoose/package.json
index 7facc7c391..2f3dc93b39 100755
--- a/packages/strapi-mongoose/package.json
+++ b/packages/strapi-mongoose/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-mongoose",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Mongoose hook for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -19,7 +19,7 @@
     "mongoose": "^5.0.16",
     "mongoose-float": "^1.0.2",
     "pluralize": "^6.0.0",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "strapi": {
     "isHook": true
diff --git a/packages/strapi-plugin-content-manager/package.json b/packages/strapi-plugin-content-manager/package.json
index b27fed9185..f41b7111a5 100755
--- a/packages/strapi-plugin-content-manager/package.json
+++ b/packages/strapi-plugin-content-manager/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-content-manager",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "A powerful UI to easily manage your data.",
   "strapi": {
     "name": "Content Manager",
@@ -23,7 +23,7 @@
   },
   "devDependencies": {
     "react-select": "^1.0.0-rc.5",
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-plugin-content-type-builder/package.json b/packages/strapi-plugin-content-type-builder/package.json
index 998adaf134..0f2dcfbae3 100755
--- a/packages/strapi-plugin-content-type-builder/package.json
+++ b/packages/strapi-plugin-content-type-builder/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-content-type-builder",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Strapi plugin to create content type (API).",
   "strapi": {
     "name": "Content Type Builder",
@@ -23,11 +23,11 @@
   },
   "dependencies": {
     "pluralize": "^7.0.0",
-    "strapi-generate": "3.0.0-alpha.12.4",
-    "strapi-generate-api": "3.0.0-alpha.12.4"
+    "strapi-generate": "3.0.0-alpha.12.5",
+    "strapi-generate-api": "3.0.0-alpha.12.5"
   },
   "devDependencies": {
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-plugin-email/package.json b/packages/strapi-plugin-email/package.json
index 18c5a9d429..4e34c03031 100644
--- a/packages/strapi-plugin-email/package.json
+++ b/packages/strapi-plugin-email/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-email",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "This is the description of the plugin.",
   "strapi": {
     "name": "Email",
@@ -22,11 +22,11 @@
     "prepublishOnly": "IS_MONOREPO=true npm run build"
   },
   "dependencies": {
-    "strapi-email-sendmail": "3.0.0-alpha.12.4"
+    "strapi-email-sendmail": "3.0.0-alpha.12.5"
   },
   "devDependencies": {
     "react-copy-to-clipboard": "5.0.1",
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-plugin-graphql/config/settings.json b/packages/strapi-plugin-graphql/config/settings.json
index 1501513aee..deda1e7b90 100644
--- a/packages/strapi-plugin-graphql/config/settings.json
+++ b/packages/strapi-plugin-graphql/config/settings.json
@@ -1,5 +1,6 @@
 {
   "endpoint": "/graphql",
   "shadowCRUD": true,
+  "playgroundAlways": false,
   "depthLimit": 7
 }
diff --git a/packages/strapi-plugin-graphql/hooks/graphql/index.js b/packages/strapi-plugin-graphql/hooks/graphql/index.js
index a8e0586432..dc0dd42b4f 100644
--- a/packages/strapi-plugin-graphql/hooks/graphql/index.js
+++ b/packages/strapi-plugin-graphql/hooks/graphql/index.js
@@ -123,7 +123,7 @@ module.exports = strapi => {
       })(ctx, next));
 
       // Disable GraphQL Playground in production environment.
-      if (strapi.config.environment !== 'production') {
+      if (strapi.config.environment !== 'production' || strapi.plugins.graphql.config.playgroundAlways) {
         router.get('/playground', koaPlayground({ endpoint: strapi.plugins.graphql.config.endpoint}));
       }
 
diff --git a/packages/strapi-plugin-graphql/package.json b/packages/strapi-plugin-graphql/package.json
index b048fa98e2..b24c307c14 100644
--- a/packages/strapi-plugin-graphql/package.json
+++ b/packages/strapi-plugin-graphql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-graphql",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "This is the description of the plugin.",
   "strapi": {
     "name": "graphql",
@@ -29,7 +29,7 @@
     "graphql-tools": "^2.23.1",
     "graphql-type-json": "^0.2.0",
     "pluralize": "^7.0.0",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "A Strapi developer",
diff --git a/packages/strapi-plugin-graphql/services/GraphQL.js b/packages/strapi-plugin-graphql/services/GraphQL.js
index 0e43ea9674..f35fdab0d2 100644
--- a/packages/strapi-plugin-graphql/services/GraphQL.js
+++ b/packages/strapi-plugin-graphql/services/GraphQL.js
@@ -157,10 +157,7 @@ module.exports = {
       let type = 'String';
 
       switch (definition.type) {
-        case 'string':
-        case 'text':
-          type = 'String';
-          break;
+        // TODO: Handle fields of type Array, Perhaps default to [Int] or [String] ...
         case 'boolean':
           type = 'Boolean';
           break;
@@ -567,7 +564,10 @@ module.exports = {
 
                 const entry = withRelated && withRelated.toJSON ? withRelated.toJSON() : withRelated;
 
-                entry[association.alias]._type = _.upperFirst(association.model);
+                // Set the _type only when the value is defined
+                if (entry[association.alias]) {
+                  entry[association.alias]._type = _.upperFirst(association.model);
+                }
 
                 return entry[association.alias];
               }
@@ -651,8 +651,8 @@ module.exports = {
                       [ref.primaryKey]: arrayOfIds,
                       ...where.where
                     }).where;
+                    break;
                   }
-                  break;
                   // falls through
                 }
                 default:
diff --git a/packages/strapi-plugin-settings-manager/package.json b/packages/strapi-plugin-settings-manager/package.json
index 5f91f4610d..5df42d3e96 100755
--- a/packages/strapi-plugin-settings-manager/package.json
+++ b/packages/strapi-plugin-settings-manager/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-settings-manager",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Strapi plugin to manage settings.",
   "strapi": {
     "name": "Settings Manager",
@@ -25,7 +25,7 @@
   "devDependencies": {
     "flag-icon-css": "^2.8.0",
     "react-select": "^1.0.0-rc.5",
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-plugin-upload/package.json b/packages/strapi-plugin-upload/package.json
index f66ba60e85..43d76b1af7 100644
--- a/packages/strapi-plugin-upload/package.json
+++ b/packages/strapi-plugin-upload/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-upload",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "This is the description of the plugin.",
   "strapi": {
     "name": "Files Upload",
@@ -23,12 +23,12 @@
   },
   "dependencies": {
     "react-copy-to-clipboard": "^5.0.1",
-    "strapi-upload-local": "3.0.0-alpha.12.4",
+    "strapi-upload-local": "3.0.0-alpha.12.5",
     "stream-to-array": "^2.3.0",
     "uuid": "^3.2.1"
   },
   "devDependencies": {
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "A Strapi developer",
diff --git a/packages/strapi-plugin-users-permissions/controllers/Auth.js b/packages/strapi-plugin-users-permissions/controllers/Auth.js
index a70990e23a..a97a9df50d 100644
--- a/packages/strapi-plugin-users-permissions/controllers/Auth.js
+++ b/packages/strapi-plugin-users-permissions/controllers/Auth.js
@@ -114,8 +114,11 @@ module.exports = {
 
       user.password =  await strapi.plugins['users-permissions'].services.user.hashPassword(params);
 
+      // Remove relations data to update user password.
+      const data = _.omit(user, strapi.plugins['users-permissions'].models.user.associations.map(ast => ast.alias));
+
       // Update the user.
-      await strapi.query('user', 'users-permissions').update(user);
+      await strapi.query('user', 'users-permissions').update(data);
 
       ctx.send({
         jwt: strapi.plugins['users-permissions'].services.jwt.issue(_.pick(user.toJSON ? user.toJSON() : user, ['_id', 'id'])),
@@ -203,8 +206,11 @@ module.exports = {
       return ctx.badRequest(null, err);
     }
 
+    // Remove relations data to update user code.
+    const data = _.omit(user, strapi.plugins['users-permissions'].models.user.associations.map(ast => ast.alias));
+
     // Update the user.
-    await strapi.query('user', 'users-permissions').update(user);
+    await strapi.query('user', 'users-permissions').update(data);
 
     ctx.send({ ok: true });
   },
diff --git a/packages/strapi-plugin-users-permissions/package.json b/packages/strapi-plugin-users-permissions/package.json
index 11166ecf5e..f5a690625c 100644
--- a/packages/strapi-plugin-users-permissions/package.json
+++ b/packages/strapi-plugin-users-permissions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-plugin-users-permissions",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Protect your API with a full-authentication process based on JWT",
   "strapi": {
     "name": "Roles & Permissions",
@@ -31,7 +31,7 @@
     "uuid": "^3.1.0"
   },
   "devDependencies": {
-    "strapi-helper-plugin": "3.0.0-alpha.12.4"
+    "strapi-helper-plugin": "3.0.0-alpha.12.5"
   },
   "author": {
     "name": "Strapi team",
diff --git a/packages/strapi-redis/package.json b/packages/strapi-redis/package.json
index be24241412..95ab33c6df 100755
--- a/packages/strapi-redis/package.json
+++ b/packages/strapi-redis/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-redis",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Redis hook for the Strapi framework",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -18,7 +18,7 @@
     "ioredis": "^3.1.2",
     "lodash": "^4.17.4",
     "stack-trace": "0.0.10",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "strapi": {
     "isHook": true
diff --git a/packages/strapi-upload-aws-s3/package.json b/packages/strapi-upload-aws-s3/package.json
index eed53ad553..8b3da1fe90 100644
--- a/packages/strapi-upload-aws-s3/package.json
+++ b/packages/strapi-upload-aws-s3/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-upload-aws-s3",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "AWS S3 provider for strapi upload",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-upload-cloudinary/package.json b/packages/strapi-upload-cloudinary/package.json
index e192860c04..e0cbdf9e9a 100644
--- a/packages/strapi-upload-cloudinary/package.json
+++ b/packages/strapi-upload-cloudinary/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-upload-cloudinary",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Cloudinary provider for strapi upload",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-upload-local/package.json b/packages/strapi-upload-local/package.json
index 4d38592694..cb1ec30d80 100644
--- a/packages/strapi-upload-local/package.json
+++ b/packages/strapi-upload-local/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-upload-local",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Local provider for strapi upload",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi-upload-rackspace/package.json b/packages/strapi-upload-rackspace/package.json
index 682a70dacc..f4137b7a6c 100644
--- a/packages/strapi-upload-rackspace/package.json
+++ b/packages/strapi-upload-rackspace/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-upload-rackspace",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Rackspace provider for strapi upload",
   "main": "./lib",
   "scripts": {
diff --git a/packages/strapi-utils/lib/models.js b/packages/strapi-utils/lib/models.js
index ab3f12aff2..4cc6981971 100755
--- a/packages/strapi-utils/lib/models.js
+++ b/packages/strapi-utils/lib/models.js
@@ -10,6 +10,11 @@ const path = require('path');
 // Public node modules.
 const _ = require('lodash');
 
+// Following this discussion https://stackoverflow.com/questions/18082/validate-decimal-numbers-in-javascript-isnumeric this function is the best implem to determine if a value is a valid number candidate
+const isNumeric = (value) => {
+  return !isNaN(parseFloat(value)) && isFinite(value);
+}
+
 /* eslint-disable prefer-template */
 /*
  * Set of utils for models
@@ -453,11 +458,10 @@ module.exports = {
       let result;
       let formattedValue;
 
-      try {
-        formattedValue = !_.isNaN(_.toNumber(value)) ? _.toNumber(value) : value;
-      } catch(err) {
-        formattedValue = value;
-      }
+      // Check if the value if a valid candidate to be converted to a number value
+      formattedValue = isNumeric(value)
+        ? _.toNumber(value)
+        : value;
 
       if (_.includes(['_start', '_limit'], key)) {
         result = convertor(formattedValue, key);
diff --git a/packages/strapi-utils/package.json b/packages/strapi-utils/package.json
index 0e1fb0bff9..497f69a373 100755
--- a/packages/strapi-utils/package.json
+++ b/packages/strapi-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi-utils",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "Shared utilities for the Strapi packages",
   "homepage": "http://strapi.io",
   "keywords": [
diff --git a/packages/strapi/package.json b/packages/strapi/package.json
index 2d13039440..1441d425f2 100755
--- a/packages/strapi/package.json
+++ b/packages/strapi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "strapi",
-  "version": "3.0.0-alpha.12.4",
+  "version": "3.0.0-alpha.12.5",
   "description": "An open source solution to create and manage your own API. It provides a powerful dashboard and features to make your life easier.",
   "homepage": "http://strapi.io",
   "keywords": [
@@ -55,16 +55,16 @@
     "rimraf": "^2.6.2",
     "semver": "^5.4.1",
     "stack-trace": "0.0.10",
-    "strapi-generate": "3.0.0-alpha.12.4",
-    "strapi-generate-admin": "3.0.0-alpha.12.4",
-    "strapi-generate-api": "3.0.0-alpha.12.4",
-    "strapi-generate-controller": "3.0.0-alpha.12.4",
-    "strapi-generate-model": "3.0.0-alpha.12.4",
-    "strapi-generate-new": "3.0.0-alpha.12.4",
-    "strapi-generate-plugin": "3.0.0-alpha.12.4",
-    "strapi-generate-policy": "3.0.0-alpha.12.4",
-    "strapi-generate-service": "3.0.0-alpha.12.4",
-    "strapi-utils": "3.0.0-alpha.12.4"
+    "strapi-generate": "3.0.0-alpha.12.5",
+    "strapi-generate-admin": "3.0.0-alpha.12.5",
+    "strapi-generate-api": "3.0.0-alpha.12.5",
+    "strapi-generate-controller": "3.0.0-alpha.12.5",
+    "strapi-generate-model": "3.0.0-alpha.12.5",
+    "strapi-generate-new": "3.0.0-alpha.12.5",
+    "strapi-generate-plugin": "3.0.0-alpha.12.5",
+    "strapi-generate-policy": "3.0.0-alpha.12.5",
+    "strapi-generate-service": "3.0.0-alpha.12.5",
+    "strapi-utils": "3.0.0-alpha.12.5"
   },
   "author": {
     "email": "hi@strapi.io",