{"id":"MirOS","title":"The MirOS Licence","reviewed_on":"2026-09-15","reviewer":"Giray Havur","text_source":"https://raw.githubusercontent.com/spdx/license-list-data/main/text/MirOS.txt","text_retrieved":true,"verdict":"created","summary":"The record models the MirOS licence, an MIT-form grant that puts the condition first: the terms, the disclaimer and all copyright notices must be retained or reproduced in an accompanying document, and then the work may be dealt in without restriction. Sublicensing is named in the grant, so dalicc:sublicense is permitted.","findings":[{"rubric":3,"severity":"major","field":"odrl:permission","description":"The grant reads: \"permission is granted to deal in this work without restriction, including unlimited rights to use, publicly perform, distribute, sell, modify, merge, give away, or sublicence.\" The record permits reproduce, distribute, modify, derive, display, present, sublicense, commercial use, derivative works and modified works; publicly perform supports odrl:present and odrl:display, and sell supports dalicc:chargeDistributionFee. The text does not carry the MIT clause about persons to whom the work is furnished, so there is no odrl:grantUse.","action":"applied"},{"rubric":5,"severity":"major","field":"odrl:duty","description":"The condition reads: \"Provided that these terms and disclaimer and all copyright notices are retained or reproduced in an accompanying document\". cc:Attribution and cc:Notice on distribute, modify and derive.","action":"applied"},{"rubric":4,"severity":"major","field":"odrl:prohibition","description":"dalicc:ChangeLicense is prohibited because the text requires the license itself to travel with every copy, which is the reading IscLicense and BSD-3-Clause take of the same clause. The MIT record does not carry the prohibition although its text has the same requirement, so the library is not uniform here. (Corrected on 2026-09-15 by the verification pass: see the rubric 3 finding on relicensing below.)","action":"applied"},{"rubric":6,"severity":"minor","field":"dalicc:WarrantyDisclaimer","description":"The disclaimer paragraph is split at the liability sentence. The liability clause is unusual in that it keeps the licensor liable for immediate fault when the work is used as intended, which is quoted and not paraphrased.","action":"applied"},{"rubric":7,"severity":"info","field":"cc:jurisdiction","description":"The text names no legal system and no term, so cc:jurisdiction is dalicc:worldwide and dalicc:validityType is dalicc:perpetual.","action":"none"},{"rubric":2,"severity":"info","field":"odrl:target","description":"One odrl:AssetCollection of dct:type dcmitype:Software, following MIT. The text says work throughout but is an operating system license.","action":"applied"},{"rubric":9,"severity":"info","field":"record","description":"The consistency check with the axioms of dg_default returned no conflicts.","action":"none"},{"rubric":10,"severity":"info","field":"record","description":"The review group notes expected a condition on distributing modified versions. The fetched text has none: the only condition is the retention of the terms, the disclaimer and the copyright notices, which applies to every copy. The record follows the text.","action":"none"},{"rubric":3,"severity":"major","field":"odrl:permission","description":"Library convention 15: a licence that asks for no reciprocity and no source code asks only that the notice travels with the copy, which is a duty on the acts it governs and not a bar on putting the copy under other terms. dalicc:ChangeLicense is therefore a permission here, and the prohibition the earlier reading wrote is removed. The text reads: \"Provided that these terms and disclaimer and all copyright notices are retained or reproduced in an accompanying document, permission is granted to deal in this work without restriction, including unlimited rights to use, publicly perform, distribute, sell, modify, merge, give away, or sublicence.\" The permission carries the dalicc:compliantLicense duty, as Apache-2.0 does, because the notice has to survive the relicensing.","action":"applied"}],"family":"Permissive: MIT, ISC and BSD-like","port_of":null,"variant_kind":null,"notes":"Modelled from the SPDX plain text. The title keeps the British spelling Licence that SPDX and the licensor use."}