Add the Cu, F2, HCl, He, Hg, Kr, N2, and Ne datasets by SIGLO from LXCat 2.

Add the CF3I:2000 and SF6:2000 datasets by Christophorou from LXCat 2.

Add the Ar, CH3, H2(p), He, Ne, O2(a1D), O3, SiH4, CH2, F2, H2(s), N, O, O2(B1S), SF6, and Xe datasets by Morgan from LXCat 2.

Add the C, C2H6, CH, and CF4 datasets by Morgan from LXCat 2.

Add the O2Electronic, O2Vib, and O2_SRLBSB datasets by FLINDERS from LXCat 2.

Add the CO2vibmodes, N2Electronic, N2XVib, NOElectronic, and NOvib datasets by FLINDERS from LXCat 2.

Add the Ar, BSR-312_LSJ, BSR-500, BSR-660, BSR-690_F, BSR-690_N, and BSR-696_LS datasets by BSR from LXCat 2.

Adds the `AtomLSUncoupled`, `AtomLSTwoTerm`, and `AtomLSJTwoTerm` species types.

Add the CF4, CHF3, and Si(CH3)4 datasets by Bordage from LXCat 2.

Add the H-elec, H2-elec, N-elec, O-elec, and O2-elec datasets by IST-Lisbon from LXCat 2.

Add the Cu, F2, HCl, He, Hg, Kr, N2, and Ne datasets by SIGLO from LXCat 2.

Add the Xe and Xe* datasets by TRINITI from LXCat 2.

Add the H2(+), H2(v=1), H2(v=2), H2(v=3), H2(v=4), H2(v=5), H2(v=6), H2(v=7), H2(v=8), H2(v=9), H2O, HCl, HCl(v=1), HCl(v=2), HCl(v=3), He, He_star, N2, Na, Na(3d), Na(3p), Na(4s), Ne, Ne(1s2), Ne(1s3), Ne(1s4), Ne(1s5), NF3, O, O(0.02), O2, O2(0.98), O2(1.63), O2(VSUM), Rotation, and SF6 datasets by TRINITI from LXCat 2.

Add the CO, CO2, Cs, Cs*, F2, H, H(2S), and H2 datasets by TRINITI from LXCat 2.

Introduce Zod 4 and rework JSON Schema and OpenAPI generation.

Add the BCl3 dataset by TRINITI from LXCat 2.

Add the Ar, Ar*, BCl, BCl2, CF3I, CF4, and CH4 datasets by TRINITI from LXCat 2.

Add the Ar, C2H4, C3H6, and Ne datasets by Puech from LXCat 2.

Add the N2+ dataset by eMol-LeHavre from LXCat 2.

Add the O2, and H2O datasets by Morgan from LXCat 2.

Add the H2, H2O, and CO2 datasets by Itikawa from LXCat 2.

Add the CO, N2, NO, and O2 datasets by Itikawa from LXCat 2.

Add the CO2, H2O, HCl, N2O, NH3, SO2, Si2H6, and SiH4 datasets by Hayashi from LXCat 2.

Add the Ar, C2H2, C2H4, C2H6, CCl2F2, CCl4, CF4, and CH4 datasets by Hayashi from LXCat 2.

Add the N2(A) dataset by Morgan from LXCat 2.

Updates author and admin interfaces, introduces React 19, fully migrates to app router, and fixes bug on cross section selection page.

Add the N2, NO, NH3, and O^- datasets by Morgan from LXCat 2.

Add the C2H2 dataset by Morgan from LXCat 2.

Add the Ar, O, H, N, H2-rot, CO-rot, He, and O3 datasets by IST-Lisbon from LXCat 2.

Add the C2H4, C3H8, CH4, Cl2, CO, CO2, H, H2, HCl, and Kr datasets by Morgan from LXCat 2.

Adds the Phelps Ne dataset from LXCat 2.

Adds support for three new type tags. Introduces a clear split between LXCat and data references in the terms of use.

Introduces a news component and total set counts on the homepage, and updates the demo alert message.