0.1.1

Added

• Copy existing images to R2 from the admin. A notice says how many images aren't in R2 yet. The Existing images panel copies them in resumable WP-Cron batches, newest first, with progress, Pause/Resume/Cancel, a list of failed images and an opt-in to delete local copies (offload or stream mode only). With network activation, the panel is under each site's Media → Tachyon R2.
• REST endpoint tachyon-r2/v1/backfill and the tachyon_r2_backfill_batch_size filter.

Changed

• Multisite: when the plugin is activated on a single site, its settings page is that site's Settings → Tachyon R2 and the settings apply to that site only. Network activation keeps the network-wide page. Only network administrators can change the settings.
• Sites activated before this change keep using the network settings until their own are saved.
• README credits the diagram tooling.

0.1.0

Added

• Upload images to Cloudflare R2 over the S3 API (SigV4, no SDK).
• Upload methods: sync, offload and stream (tachyon-r2:// stream wrapper).
• Skip thumbnails, with virtual sizes in attachment metadata.
• Tachyon URLs in the admin, REST and wp_get_attachment_url() when images may be remote.
• Delete R2 objects with the attachment.
• Settings page and TACHYON_R2_* constants.
• WP-CLI: wp tachyon-r2 status, sync, restore.