Engineering

Rails 4 in a MindNode

A high-level overview of what's being added, removed, and deprecated in Rails 4, organized as a MindNode mind map.

1 min read
Santiago Pastorino
Santiago Pastorino Published on Sep 20, 2012

I’ll be talking at RubyConf Argentina, and the first thing I usually do when preparing talks is to think in a high level and then start going down form there. I find MindNode a great tool for that. So I started checking what was being added, removed and deprecated in Rails 4 (my memory isn’t good enough to have all that in the top of my head :P). The result is this MindNode I’m sharing with you …

Rails 4 MindNode

I could be missing some stuff or could even be things that won’t make it to Rails 4, but that’s the picture as of today. If you find something that I’m missing or that I should change please let me know. I will keep this MindNode updated so keep checking it.

UPDATE #1: Support for specifying transaction isolation level

UPDATE #2: Turbolinks

Article you may like

What Value Does a Software Developer Bring in the Age of Coding Agents?
4 min read
Artificial Intelligence

What Value Does a Software Developer Bring in the Age of Coding Agents?

If AI writes code… where does a developer's value actually live? It doesn't disappear — it moves.

Jorge BejarFeb 25, 2026
Trapped in My Own Loop
3 min read
Leadership

Trapped in My Own Loop

A simple question from a colleague made me realize I'd been reading every interaction through a lens of negativity — and that escaping that loop was my responsibility.

Rodrigo Ponce de LeónFeb 20, 2026
I Used to Think Reading Was a Waste of Time
2 min read
Leadership

I Used to Think Reading Was a Waste of Time

Reading felt pointless to me — until I discovered that every book is a capsule of someone else's transformation, and that witnessing those transformations helps us find our own.

Rodrigo Ponce de LeónJan 8, 2026
View All

Let's build together.

Ready to partner with a team that cares as much about your success as you do?

+1