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Upgrade to the latest release

Latest release (crates.io / PyPI): v1.1.4

Your situation Guide
Fresh install Pin ontologos-* = "1.1.4" or pip install ontologos==1.1.4
Upgrading from v1.0.x v1.0.x → v1.1.0
Upgrading from v0.9.x v0.9.x → v1.0.0
Upgrading from v0.8.x v0.8.x → v1.0.0
Older releases Historical migrations

v1.1.4 at a glance

Rust: Bump all ontologos-* crate pins to "1.1.4". Drop-in patch over v1.1.3 — conformance nightly deferred-WG fix.

Python: pip install -U ontologos or pip install ontologos==1.1.4. Same Reasoner / Ontology API.

CLI: classify --profile auto|el|rl|rdfs|dl|swrl, materialize, explain, query.

v1.1.3 at a glance

Rust: Bump all ontologos-* crate pins to "1.1.3". Drop-in patch over v1.1.2 — test-oracle honesty and conformance guard cleanup.

Python: pip install -U ontologos or pip install ontologos==1.1.3. Same Reasoner / Ontology API.

CLI: classify --profile auto|el|rl|rdfs|dl|swrl, materialize, explain, query.

v1.1.1 at a glance

Rust: Bump all ontologos-* crate pins to "1.1.1". Drop-in patch over v1.1.0 — parser, DL, SWRL, RL, and binding fixes only.

Python: pip install -U ontologos or pip install ontologos==1.1.1. Same Reasoner / Ontology API.

CLI: classify --profile auto|el|rl|rdfs|dl|swrl, materialize, explain, query.

v1.1.0 at a glance

Rust: Bump all ontologos-* crate pins to "1.1.0". No breaking API changes for facade/parser users.

Python: pip install -U ontologos. Same Reasoner / Ontology API.

New bindings: Java (JNI), .NET (P/Invoke), C/C++ (cdylib), Node (N-API), WASM — see Bindings overview.

CLI: classify --profile auto|el|rl|rdfs|dl|swrl, materialize, explain, query.

v1.0.0 at a glance (prior release)

HermiT parity milestone — OWL 2 DL + SWRL stable. See v0.9.x → v1.0.0 for breaking changes from 0.9.x.

Historical migrations

Older step-by-step guides: Historical migrations.