When was rails 3.2 released

Share this post Twitter Facebook We're hiring! We're hiring! Upgrading To Zeitwerk rails. Get the book. Rails Version. Required Ruby Version. Now that Rails 4. If not, does anyone know when Rails 3. Rails 3. That said, the 3. Ruby on Rails 3. We still saw some security fixes after that date like 3. And you should not expect any further version. If you still run an application on Rails 4. Rails' Maintenance Policy makes it quite clear when a version should be considered un-maintained.

If for whatever reason you're stuck for now on Rails 3. In our case, an application that's being replaced can't justify the upgrade time. In the meantime while it's up, this service is perfect. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller MVC pattern.

Understanding the MVC pattern is key to understanding Rails. MVC divides your application into three layers, each with a specific responsibility. Templates can come in a variety of formats, but most view templates are HTML with embedded Ruby code. The Model layer represents your domain model such as Account, Product, Person, Post and encapsulates the business logic that is specific to your application.

In Rails, database-backed model classes are derived from ActiveRecord::Base. Active Record allows you to present the data from database rows as objects and embellish these data objects with business logic methods. Although most Rails models are backed by a database, models can also be ordinary Ruby classes, or Ruby classes that implement a set of interfaces as provided by the ActiveModel module.

The Controller layer is responsible for handling incoming HTTP requests and providing a suitable response. Controllers manipulate models and render view templates in order to generate the appropriate HTTP response. These two layers are bundled in a single package due to their heavy interdependence.

This is unlike the relationship between Active Record and Action Pack which are independent. Each of these packages can be used independently outside of Rails. Go to localhost and you'll see:. Follow the guidelines to start developing your application.