Inside Coastline Index’s Data Update Log and Source Citations for GTA 6 Coastline Index, a GTA 6 database, has introduced a public Data Update Log that records every change to core game entities, along with the exact Rockstar source and a timestamped note. The project aims to provide traceability, safer grounding for AI retrieval systems, and easier diffing for downstream consumers. It also offers machine-readable endpoints such as XML sitemaps, llms.txt, and JSON APIs for entities and status. Coastline Index is a narrow GTA VI database, but under the hood it behaves more like a data product than a fan wiki. One piece that developers tend to care about is our public “Data Update Log”. What it records • Every change to core GTA 6 entities release, platforms, editions, characters, Leonida map info • The exact Rockstar source behind that change Newswire URL, support article, trailer timestamp • A timestamped note explaining what was added, removed or corrected Why we bothered • Traceability: anyone can see why a fact changed instead of trusting silent edits • Safer grounding for AI: retrieval systems can prefer entries with clear provenance • Easier diffing: downstream consumers can poll the log instead of scraping full pages Machine-facing bits • XML sitemap and llms.txt • JSON APIs for entities and current status If you’re building bots, RAG pipelines or tools around GTA 6, this is the layer we want you to plug into—not rumor threads. Details are live here: https://coastlineindex.com https://coastlineindex.com