27 March 2019: corrected the spectrum of the 2nd subconstituent of the McLaughlin graph, as well as updating the GAP file (to use the full automorphism group).

22 October 2018: fixed a typo in the intersection array of the Johnson graph $J(10,5)$.

14 August 2018: fixed the spelling of "Schläfli" on the Schläfli graph and complement of Schläfli graph pages.

27 January 2018: corrected the automorphism group on the dodecahedron page.

5 January 2018: fixed links to data files from the Hamming graph $H(2,10)$ page.

4 August 2017: added some Grassmann graphs, namely $J_2(4,2)$, $J_2(5,2)$, $J_2(6,2)$, $J_3(4,2)$ and $J_2(6,3)$.

4 August 2017: fixed a typo in the automorphism group of the point graphs of the generalized hexagons $GH(2,2)$.

3 August 2017: fixed a typo in the page An introduction to distance-regular graphs.

25 July 2017: added the $\mathrm{G}_2(4)$ graph on 416 vertices.

25 July 2017: updated naming and external link for the Hall–Janko near octagon on 315 vertices, also known as the Cohen–Tits near octagon.

2 July 2017: added the Zara graph on 126 vertices.

7 June 2017: pages now use the more specific term symmetric transversal design in place of "resolvable transversal design".

7 June 2017: added the Suetake graph (incidence graph of symmetric transversal design $\mathrm{STD}_4[12;3]$).

7 June 2017: reorganized index of incidence graphs.

7 June 2017: corrected the spectrum of the hexacode graph.

22 February 2017: site launched.

Last updated: 27 March 2019