comment_update_1000 in modules/comment/comment.install

Renames {comment}.language to {comment}.langcode.

file_update_1003 in modules/file/file.install

Add a type column to the file_managed table, and add a file_metadata table.

locale_update_1005 in modules/locale/locale.install

Convert source and translation from blob to text.

node_update_1014 in modules/node/node.install

Change {history}.nid to an unsigned int in order to match {node}.nid.

redirect_update_1001 in modules/redirect/redirect.install

Rename the language column to langcode.

taxonomy_update_1002 in modules/taxonomy/taxonomy.install

Drop the old taxonomy vocabulary table.

update_prepare_bootstrap in includes/update.inc

Performs extra steps required to bootstrap when using a Drupal 7 database.

user_update_1007 in modules/user/user.install

Convert user roles to configuration files.