Upgrading from Kohana v2.3.3 to v2.3.4
I just found the official Kohana documentation for upgrading your Kohana applications to the latest version. In fact, these instructions also work for upgrading Kohana v2.3.4 to v2.4 and Kohana v2.x to v3.x.
Upgrading your Kohana Application
Read the source code, note differences in the available methods and properties. For more detailed information, please refer to the change log.
The official Kohana change log may be obtained by using diff, or the Windows equivalent, against the old and new versions. Please enjoy using Kohana!
As one of the lead developers proudly proclaims – “We try to be an advanced framework for developers who know what they are doing when it comes to programming. The framework should not hold the developer’s hand.” He also thinks people complain when new versions are released and says it’s because “they’re stuck in the past” even though he was recently threatening to fork the project because his v2.x branch was in danger of not seeing the light of day due to the new v3.x branch.
My recommendation is that you should just use a single version of Kohana for your application and not worry about the future as it’s uncertain and likely to be a complete waste of effort upgrading.