MailCatcher is a ruby gem that runs a local SMTP server on your machine. Any email message sent to this SMTP server will be captured and not sent out. Also, all messages will be viewable in a web interface available at http://localhost:1080.

The beginning of the New Year is the time when businesses and individuals set resolutions for the year. While it's important to set high-level goals for the upcoming year, I tend to focus not on resolutions, but creation of habits and quarterly goals instead.

We at Remarkable Labs really hope you've enjoyed the series, and to finish it off, I wanted to announce that we will be writing an ebook, titled "The Rails 4 Upgrading Guide".

One major feature being added to Rails 4 is the ability to stream data to the client. While the streaming of templates is currently available in Rails 3, thanks to Aaron Patterson's efforts, we can now stream other types of data such as JSON.

Out of all the supported databases available in Active Record, PostgreSQL received the most amount of attention during the development of Rails 4. In today's countdown post, we are going to look at the various additions made to the PostgreSQL database adapter.