We've been branching to a 2.x tree and slowly adapting to the latest stable release (up until yesterday 2.2.2). Surprisingly plugin compatibility was not the bi

We've been branching to a 2.x tree and slowly adapting to the latest stable release (up until yesterday 2.2.2). Surprisingly plugin compatibility was not the biggest issue we faced (and we use many plugins) - most problems caused by plugins were solved by installing newer version. Our biggest problems come from subtle changes in HAML syntax, which causes syntax errors in a myriad of views. As you can imagine, it's rather tedious to hunt down those incompatibilities, as our application is rather large.