# Changelog Human-readable additions, fixes, and new actions, tied to the SemVer version of the PDF Blocks API. What changed in the PDF Blocks API, tied to its [SemVer](https://semver.org) version. The current release is `1.18`. <Note> This changelog is a **forward-looking scaffold**. It shows the current version and the entry format; future releases will each get a dated entry here. Only verified changes are listed — no invented history. </Note> ## How to read it Entries are grouped by version, newest first, and tagged **Added**, **Changed**, or **Fixed**. The version follows SemVer 2.0.0, and the major version (`v1`) appears in every route. See [Versioning and stability](/docs/api/versioning-and-stability) for what counts as a backward-compatible change and how breaking changes would ship. ## 1.18 — current The API exposes the full surface of **17 actions**: merge documents; add text and image watermarks; add and remove passwords; add and remove restrictions; remove signatures; extract, remove, rotate, reverse, and reorder pages; and split by page count, at a page, by size, and into page groups. The most recent additions to reach this version: - **Added** — the **split family**: `split_by_page_count`, `split_at_page`, `split_by_size`, and `split_by_groups`. These return multiple documents; the format (ZIP, JSON, or multipart) is chosen with the `Accept` header. See [Response formats](/docs/api/response-formats). - **Added** — `reorder_pages`, which emits pages in an explicit [`page_order`](/docs/api/selecting-pages) sequence. - **Added** — the `pages` selector on the page and watermark actions, for targeting a subset of pages with a compact range syntax such as `1..3,5`.