gistfile1.txt

hook_field_info()	Replaced by annotation-based plugin discovery, using the \Drupal\Core\Field\Annotation\FieldType annotation class
+ FieldItemInterface::defaultSettings() / FieldItemInterface::defaultInstanceSettings() (static methods)
hook_field_schema()	FieldItemInterface::schema() (static method)
hook_field_settings_form()	FieldItemInterface::settingsForm()
hook_field_instance_settings_form()	FieldItemInterface::instanceSettingsForm()
hook_field_is_empty()	ComplexDataInterface::isEmpty()
hook_field_presave()	FieldItemInterface::preSave()
hook_field_insert()	FieldItemInterface::insert()
hook_field_update()	FieldItemInterface::update()
hook_field_delete()	FieldItemInterface::delete()
hook_field_delete_revision()	FieldItemInterface::deleteRevision()
hook_field_validate()	TypedDataInterface::getConstraints() (field validation moves on top of the existing Entity validation with Symfony constraints)
hook_field_load()	Removed. Field types can add computed properties or methods to their field item classes instead. See https://drupal.org/node/2112677.
hook_field_prepare_view()	Removed, in favour of prepareView() on Formatters. Field types that implemented specific prepare_view steps with this hook should consider providing a base prepareView() implementation in an abstract base formatter class instead.
hook_field_prepare_translation()	Dropped - was only related to the old (node-only) translation model.
hook_field_prepare_translation_alter()	Dropped - was only related to the old (node-only) translation model.