Upgrading from 3.3 to 3.4

Requirements

Kohana 3.4 supports PHP versions 5.6, 7.0, and 7.1. Compatibility with other PHP versions has not been fully tested, and certain features may not function as expected.

Changes

• The composer install command is required for dependency installation since Kohana 3.4.4. Remember to run this command after upgrading from a previous version.
• A new VENDOR_PATH constant has been added since Kohana 3.4.4. This constant is used to locate the vendor directory.
• The global EXT constant has been deprecated. Explicitly specify .php or another file extension instead.

Auth

• The Auth::hash_password() method has been removed. Use Auth::hash() instead.

Cache

• Added a new Memcached driver.
• The APC driver was deprecated. Use APCu or other drivers instead.
• The Memcache driver was deprecated. Use Memcached or other drivers instead.
• The MemcacheTag driver was deprecated.

Core

• The Kohana::CODENAME constant was deprecated.

Database

• The MySQL driver has been removed. Use PDO or other drivers instead.

Encrypt

• Now Encrypt acts as an interface and a new OpenSSL driver for it was added.
• The Mcrypt driver was deprecated. Use OpenSSL instead.

Security

• The Security::strip_image_tags() method has been removed for security reasons as it is not reliable to parse and sanitize HTML with regular expressions. You should either encode HTML tags entirely, e.g. with HTML::chars(), or use a more robust HTML filtering solution such as HTML Purifier.

Validation

• The Validation::as_array() method has been removed. Use Validation::data() instead.