All notable changes to this actor will be documented here.
Format: YYYY-MM-DD | version | description | author
2026-07-23 | 0.1.0 | Initial build — URL change monitor with CheerioCrawler, hash-based diff, PPE per check + per change | builder-agent
2026-07-23 | 0.1.0 | Review fixes: script/style/noscript stripping (false-positive changes), {url}-object input normalization, maxRequestsPerCrawl unlimited-mode fix, fixed-length KVS keys, exit-1 when all checks fail, diff-excerpt fields (diffSnippetPrevious/Current) | OpenCode
2026-07-23 | 0.1.2 | Platform validation fix: KVS keys may only contain a-zA-Z0-9!-_.'() (colon in key prefix crashed setValue → retries → duplicate pushes); state-save failure now degrades loudly instead of crashing the request; deprecated failedRequestHandler signature fixed. Deployed to Apify (id q0G5nndypi3xfKQ1k), validated 2/2 platform runs | OpenCode
2026-07-24 | 0.1.4 | Closed backlog #3+#4 (weakest-differentiation gaps vs field): (1) per-URL CSS selectors via { url, selector } input entries + global defaultSelector fallback, with a mandatory loud fallback to full-page text (+ selectorWarning result field) on invalid/no-match selectors — never a silent phantom change; (2) minChangeRatio noise threshold (0-1, default 0/off) — a word-level multiset (Sørensen-Dice) overlap ratio between previous/current extracted text (bounded to the existing MAX_STORED_SNIPPET_CHARS=10k window) gates whether a hash difference is reported as changed and charges page-changed; hash-level detection and the persisted baseline are unaffected by the threshold, so sub-threshold drift never silently accumulates. New result fields: selectorWarning, changeRatio, belowChangeThreshold. selectors (legacy global multi-selector array) kept for backward compatibility, now only applied when a URL has neither a per-URL selector nor defaultSelector. Existing PageState KVS records ({hash, snippet}) are unchanged — no migration needed. 22 new tests (54 total, up from 32). Deployed to Apify (id q0G5nndypi3xfKQ1k). | Claude Sonnet (builder agent)
