1.2.12 min read
WordPress Requirements
Review the WordPress, PHP, media, and server requirements for version 1.2.1.
Version 1.2.1 is published for modern WordPress and PHP environments, including WordPress 7.1 compatibility.
Declared requirements
| Requirement | Value |
|---|---|
| Requires at least | WordPress 6.2 |
| Tested up to | WordPress 7.1 |
| Requires PHP | PHP 8.1 |
| License | GPLv2 or later |
| Text domain | vacuum-image-optimizer |
PHP runtime guidance
Vacuum 1.2.1 keeps PHP 8.1 as its declared minimum. The release was linted on PHP 8.5 and exercised on PHP 8.3. Use System Status to confirm the active server runtime and image-engine support before processing a large library.
WordPress features used
- Attachment metadata and post meta for optimization status.
- Media Library list table columns and row actions.
- Settings API for admin configuration.
- Admin-post and AJAX endpoints for wizard, reports, and queue actions.
- WP-Cron for backup cleanup.
- Standard image functions and srcset filters for frontend delivery.
Hosting requirements
At least one local image engine is needed for generation:
- Imagick with WebP support, or GD with WebP functions, for WebP.
- Imagick or GD with AVIF support for optional AVIF.
- Writable uploads directory.
- Writable backup directory when backups are enabled.
- Sufficient execution time and memory for larger source files.
Related articles
Requirements & CompatibilityUnderstand compatibility checks, supported environments, and graceful fallback behavior.System StatusCheck Imagick, GD, WebP, AVIF, writable uploads, writable backups, memory, and disk space.Supported FormatsReview supported source formats, skipped formats, and output behavior for WebP and AVIF.