# Changelog of Open Library Scraper — Books, Authors & Subjects (`logiover/openlibrary-scraper`) Actor

- **URL**: https://apify.com/logiover/openlibrary-scraper/changelog.md
- **Full Actor documentation**: https://apify.com/logiover/openlibrary-scraper.md

## Changelog

### 2026-09-01

- Fleet-wide health check. Verified against this Actor's real run history: 30-day success rate, output row counts, per-field fill rates, and peak memory against the configured memory limit.
- Reviewed for the failure patterns that have cost this fleet runs — unguarded proxy setup, retry loops that can outlast the run's own time budget, and full-page HTML parsing that can exhaust a small container.
- No change to input, output fields or scraping logic.

### 2026-08-11

- Maintenance release: refreshed the build and dependencies.
- Re-verified live execution, non-empty structured output and dataset field/type integrity.
- Reviewed reliability (retries, pagination) and output quality as part of a full-fleet QA pass.

### 2026-08-01

- Completed the August 2026 full health check: verified empty/programmatic default, Console UI default, and two source-informed alternative inputs on Apify.
- Confirmed successful live execution, non-empty structured output, dataset-field/type integrity, and logical sample quality within the 5-minute quality window.
- Normalized Open Library's year-0 unknown sentinel to null, aligned README examples with the numeric dataset contract, and made total API failure explicit instead of succeeding with an empty dataset.

### 2026-07-18

- Maintenance & reliability pass — re-verified end-to-end against live data via the Apify API; confirmed the Actor completes successfully and returns non-empty, well-formed results within the 5-minute quality window on its default input.
- Refreshed build so the latest version is current; no change to inputs, output fields or scraping logic.

### 2026-07-12

- **Empty input now returns data.** Previously an empty `{}` run errored ("search requires query/title/author"). Added a new **Trending / Popular** mode which is now the default, and every mode falls back to popular books when its specific input is missing. Nothing is required (`required: []`).
- Added **Subject / Genre** dropdown (`select`) with 34 common genres (still accepts a custom slug).
- Added **Sort Order** dropdown for search (relevance, rating, popularity, editions, oldest/newest, random).
- Added **Trending Period** dropdown (now / today / week / month / year).
- Output quality: numeric fields (`firstPublishYear`, `editionCount`, `ratingsAverage`, `ratingsCount`) are now real numbers instead of strings — matches the `number` column formats.
- Proxy: uses Apify Proxy AUTO; falls back to a direct connection on the final retry (public API).
- Added a ~4-minute time budget to paginations — pushes what was collected and exits successfully.
- Dataset schema: added per-field `fields` JSON schema (titles + descriptions). Output & dataset schemas linked in `.actor/actor.json`.
- No existing output field keys were renamed.