3.0.0

A correctness release. It repairs paths that silently corrupted or discarded work, gives the plugin a test suite and CI for the first time, and makes the upgrade itself verifiable.

Back up your database before upgrading — the schema change is one-way. Requires PHP 8.1. Flush your page cache and CDN afterwards: generated CSS and JS filenames now carry a content hash.

Breaking

• PHP 8.1 is the minimum. WordPress will not offer this to a site below it, and activation stops with a notice instead of a white screen.
• The CSS minifier no longer collapses whitespace around :. .menu :hover stays a descendant selector instead of silently becoming .menu:hover. If a stylesheet unknowingly depended on the collapsed form, that rule changes what it matches — this fixed eight blocks on our own site whose typography had quietly stopped applying.
• Minified JavaScript changes shape. A line comment no longer swallows the rest of the file, and newlines survive so semicolon-free code is not concatenated. Blocks whose JS silently did nothing start working.
• Generated asset filenames carry a content hash. Every cache and CDN misses once. The old unhashed name is still written as a copy for this major version.
• Utility-class output is switched off once during the upgrade, with a notice. The scanner never emitted anything for page blocks, so this is a zero-visual-change upgrade; turning it back on is your decision.
• PHP execution in the block preview requires administrator access. It previously ran for anyone who could edit the post.
• The AI panel requires manage_options. Restore with add_filter( 'gt_pb_ai_capability', fn() => 'edit_posts' );.
• The undocumented terminal endpoint is removed.
• Uninstalling deletes options, transients and stored AI keys. The library is dropped only if you tick the new setting.
• Library usage counts change on block themes, where the invalidation hooks were never registered.

Correctness

Editing a library block reaches the visitor — in file-output mode the generated file was written once and never again. The builder stops blanking core and third-party blocks on every keystroke. Renaming a section persists. A failed save says so instead of showing a green notice over a discarded session. Inline SVG backgrounds survive the CSS sanitiser. A block detached from the library stops rendering the library version over your own copy.

Recovery

Library blocks keep a revision history with one-click restore. Document-level undo covers add, delete, duplicate, reorder and import. Cmd+Backspace and Cmd+D stop acting on the whole section from inside a code pane. Undo after switching sections no longer pastes the previous section's code.

Security

The PHP-execution checksum is keyed with the site salt, so it cannot be recomputed by whoever wrote the row; existing blocks keep working and are re-keyed in the background. The licence and update channel verifies TLS certificates and rejects package URLs that are not HTTPS on the licence host.

Free, with licensed updates

Every feature works without a licence key; nothing is gated. A licence buys automatic updates and support. Security releases reach every install regardless, through a separate channel — see SECURITY.md.

Going back

Reinstall v2.8.1. The database stays at schema 1.2, which is expected and harmless. PHP-enabled blocks strip their tags until re-saved. Detail in README.md under "Going back from 3.0.0".