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  "Title": "'RDF' and 'SPARQL' for R using 'Oxigraph'",
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  "Description": "Provides 'RDF' storage and 'SPARQL' 1.1 query capabilities\nby wrapping the 'Oxigraph' graph database library\n<https://github.com/oxigraph/oxigraph>. Supports in-memory and\npersistent ('RocksDB') storage, multiple 'RDF' serialization\nformats ('Turtle', 'N-Triples', 'RDF-XML', 'N-Quads', 'TriG'),\nand full 'SPARQL' 1.1 Query and Update support. Built using the\n'extendr' framework for 'Rust'-R bindings.",
  "License": "MIT + file LICENSE",
  "URL": "https://github.com/cboettig/roxigraph",
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  "Repository": "https://cboettig.r-universe.dev",
  "Date/Publication": "2026-05-04 04:26:58 UTC",
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    "author": "Carl Boettiger <cboettig@berkeley.edu>",
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    "message": "fix(cran): downgrade oxigraph to 0.4.11 for rustc 1.77.2 compatibility (#3)\n\nThe 0.5.x oxigraph release line and all its companion crates declare\nrust-version = \"1.87\". CRAN's policy ceiling for rustc is 1.77.2 (≥ 2\nyears old), and CRAN's reference Linux runs rustc 1.86.0, so the prior\n0.5.2 pin failed MSRV resolution and triggered an archival notice\n(Brian Ripley, 2026-04-30).\n\nThis change pins oxigraph and its companions to 0.4.11 (MSRV 1.75),\nwhich compiles on rustc 1.77.2.\n\nKey changes:\n- src/rust/Cargo.toml: pin oxigraph = \"=0.4.11\", rust-version 1.70 -> 1.75.\n- src/rust/Cargo.lock: regenerated; transitively pin bindgen to 0.70.1\n  (oxrocksdb-sys allows >=0.62, <0.72) because bindgen 0.71+ emits\n  `unsafe extern \"C\" { ... }` (Rust 1.85+ syntax) in generated bindings.\n- src/rust/src/lib.rs: migrate to oxigraph 0.4 API:\n  * SPARQL: use store.query(q) instead of SparqlEvaluator builder.\n  * Subject type: rename NamedOrBlankNode -> Subject, add Triple arm.\n  * term_to_string: handle Term::Triple variant.\n- src/rust/vendor.tar.xz: re-vendored against new lock.\n- DESCRIPTION: bump Version to 0.1.2, SystemRequirements rustc >= 1.75.0.\n- NEWS.md, cran-comments.md: document the downgrade and link issue #2.\n- .Rbuildignore: ignore .claude, roxigraph_*.tar.gz, roxigraph.Rcheck.\n\nVerified with `cargo +1.77.2 build --release` and\n`R CMD check --as-cran` (0 errors, 0 warnings).\n\nThe path back to 0.5.x once CRAN's rustc ceiling reaches 1.87 is\ntracked in #2.",
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