What's Changed Add life cycle stage and life cycle temporary boundary as roots by @matentzn in https://github.com/obophenotype/uberon/pull/3646 Add workflows section to ODK YAML config and rm qc by @matentzn in https://github.com/obophenotype/uberon/pull/3644 Add COB import to Uberon by @matentzn in https://github.com/obophenotype/uberon/pull/3645 Replace chebi_slim URL by @aleixpuigb in https://github.com/obophenotype/uberon/pull/3650 adding pluralization for nephridium by @cmungall in https://github.com/obophenotype/uberon/pull/3373 stratum corneum of esophageal epithelium by @JABelfiore in https://github.com/obophenotype/uberon/pull/3424 Subdivision_of now SubProp of part_of by @dosumis in https://github.com/obophenotype/uberon/pull/3320 Add suprasellar region term by @cmungall in https://github.com/obophenotype/uberon/pull/3526 Issue 3027 by @meghalithic in https://github.com/obophenotype/uberon/pull/3516 Fixes #3427 NTR- epithelium of anorectum by @Caroline-99 in https://github.com/obophenotype/uberon/pull/3430 Fix logical definition of 'pigment epithelium of eye' by @cmungall in https://github.com/obophenotype/uberon/pull/3538 Adding gross anatomical part. Fixes #2921 by @cmungall in https://github.com/obophenotype/uberon/pull/3374 Add 'emquardokus' to ai-controllers list by @dosumis in https://github.com/obophenotype/uberon/pull/3610 Move disjoint axioms from edit file to component by @aleixpuigb in https://github.com/obophenotype/uberon/pull/3652 Issue 2951 by @meghalithic in https://github.com/obophenotype/uberon/pull/3517 Add namespace validation test to Makefile by @matentzn in https://github.com/obophenotype/uberon/pull/3654 Remove myself as "code owner". by @gouttegd in https://github.com/obophenotype/uberon/pull/3655 Replace various :DOS provenance xrefs with orcids by @matentzn in https://github.com/obophenotype/uberon/pull/3615 Deprecate UBERONs "processual entity" by @matentzn in https://github.com/obophenotype/uberon/pull/3647 Add zhengj2007 to ai-controllers list by @cmungall in https://github.com/obophenotype/uberon/pull/3658 make multicellular organism and organism substance disjoint by @matentzn in https://github.com/obophenotype/uberon/pull/3659 Remove redundant subClassOf axioms with cardinality restriction preservation by @dragon-ai-agent in https://github.com/obophenotype/uberon/pull/3611 add subset tag for added_by_HRA by @nicolevasilevsky in https://github.com/obophenotype/uberon/pull/3673 add new terms for HRA/HuBMAP by @nicolevasilevsky in https://github.com/obophenotype/uberon/pull/3671 Add HRA skeleton component with 386 new skeletal terms by @dosumis in https://github.com/obophenotype/uberon/pull/3679 Update HRA skeleton template and align template prefix declarations by @ubyndr in https://github.com/obophenotype/uberon/pull/3686 Uberon release v2026-04-01 by @ubyndr in https://github.com/obophenotype/uberon/pull/3688 Full Changelog: https://github.com/obophenotype/uberon/compare/v2025-12-04...v2026-04-01