Missing 5.4 migration guide

[LordSimal]

Looking at https://book.cakephp.org/5.next/appendices/5-4-migration-guide.html there are quite a few elements missing compared to what is present in the 5.next branch on cakephp/cakephp

• BaseCommand::initialize() now running after args/options parsing, with $this->args and $this->io available.
• Mailer::$name deprecation.
• PSR-13 link support on Response and emitted Link headers. Add missing 5.4 migration guide entries #8259
• New collection helpers - keys(), values(), implode(), when(), and unless() Add missing 5.4 migration guide entries #8259
• New filesystem Finder/Path APIs.
• New PluginConfig::getInstalledPlugins() API.
• The component-alias/default-table collision warning. Add missing 5.4 migration guide entries #8259
• Stronger Security key derivation option.
• The new cakephp/container implementation (which still needs the opt-in config)

[jamisonbryant]

I’ll do BaseCommand on Monday

[josbeir]

Weird I added finder docs before...