okf 0.7.0

• New okf_diff(): deterministic concept-level changelog between two states of a bundle. Each side can be a bundle directory, an okf_read() bundle, a DuckDB catalog path, or an open connection — so it covers both “what drifted since the last ingest” (catalog vs directory) and snapshot-vs-snapshot comparison. Reports concepts added/removed/changed (by content_hash), frontmatter type/title changes, and link-graph deltas (edges added/removed, links newly broken or fixed).
• CLI: new diff verb (okf diff <a> <b> [--json]), exit 0 when identical / 1 when different, for use as a CI change gate.

okf 0.6.0

• [[wikilink]] support: [[target]] / [[target|display]] references are resolved by name — id, then aliases, then title, then filename stem — making Obsidian/Logseq/Foam-style vaults ingestible. Ambiguous names resolve to nothing (deterministic) rather than guessing. Markdown ](path) links are unchanged.
• New okf_extract_wikilinks(); okf_links() now returns both link kinds.

okf 0.5.2

• First CRAN release. Read, validate, and load OKF bundles into a portable DuckDB catalog; concept graph (okf_links(), okf_backlinks(), okf_impact(), okf_clusters()); HTML rendering (okf_html(), okf_graph_html(), Mermaid export); index-first context assembly (okf_context()); health checks (okf_doctor(), okf_doctor_fix()); incremental re-ingest/re-embed; optional local-embedder semantic search (okf_embed(), okf_rag()).