Default Permalink

When a post title contains multi-byte characters (such as Japanese), WordPress generates a URL-encoded slug like %e3%81%82..., which results in a long and unreadable permalink. This plugin replaces such auto-generated slugs with {post_type}-{post_ID} (e.g. post-123). A multi-byte slug is kept as-is when the user has explicitly specified it. Usage

1. Go to "Settings" -> "Default Permalink" in the WordPress admin.
2. Check "Enable" and save changes.

1.5

• Added an admin notice shown after a slug has been automatically replaced.
• Added a bulk conversion tool for existing multi-byte slugs. Old URLs are redirected (301) by the WordPress core old-slug mechanism.
• Hardened: slug replacement is skipped when no post ID is available (prevents colliding "post-0" slugs on direct wp_insert_post calls).

1.4

• Added slug format options: post type and ID (post-123), post date and ID (20260613-123), or a random string (a1b2c3d4).
• Added target post type selection.

1.3

• Added uninstall cleanup: plugin options are deleted when the plugin is uninstalled.
• Added a Settings link on the Plugins screen.
• Added the default_permalink_slug filter for customizing the generated slug.

1.2

• Confirmed compatibility with the latest WordPress.
• Replaced the deprecated get_page() with get_post() (fixes a fatal error on PHP 8).
• Hardened the settings page: output escaping, sanitize callback for the option, checked() helper.
• Made the settings page strings translatable and load the plugin text domain.

1.1

• Added Japanese translation.

1.0

• Initial release.