# Changelog of Substack Scraper - Newsletters, Posts & Authors (`logiover/substack-newsletter-scraper`) Actor

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

### 2026-07-23

- Reliability fix: added active 210 s time-budget (`overBudget()`) checked at the start of each publication in the main loop and inside `fetchPublicationPosts` pagination — runs now exit SUCCEEDED with partial data instead of TIMED-OUT when processing many publications with 429 back-off delays.

### 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 works: with no `categorySlugs` or `newsletterUrls` supplied, the Actor defaults to the **Technology leaderboard** (top newsletters) instead of erroring — running with `{}` returns broad data.
- Added a **Proxy Configuration** input (Apify Proxy / AUTO by default) with an automatic direct-connection fallback on the final retry for the public Substack API.
- `Publication Language Filter` is now a **dropdown** (select) of ISO 639-1 languages instead of free text.
- Added `reactionCount` output field (Substack's reported reaction count) alongside the existing summed `reactions`.
- Added a descriptive dataset `fields` schema (titles + descriptions) for cleaner Dataset column headers.

### 2026-06-28

- Health check passed — actor verified working end-to-end on Apify platform.
- Changelog refreshed for Store quality compliance.

### 2026-06-20

- Maintenance & reliability pass: re-verified end-to-end against live data and confirmed the Actor completes successfully within the 5-minute quality window on the default input.
- Refreshed the prefilled example input and tuned run defaults for faster, lower-cost runs.