| Date | Change | Source |
|---|
| 26 Jun 2022 | PN deleted | Chris Woodcock |
| 11 May 2022 | PN amended | Chris Woodcock, local contact |
| 21 Mar 2022 | Fr1: layout added (provisional scheme) | Mike Chester |
| 10 Apr 2021 | 1-5: turning added; 4: founder & cast year amended | Chris Woodcock via Email |
| 1 Dec 2018 | Mon PN info amended - 4th starting 18:30 | Chris Woodcock via e-mail |
| 3 Nov 2015 | PN info amended | Chris Woodcock via e-mail |
| 9 Jul 2015 | frame: material amended (from metal) | Christopher Woodcock via e-mail |
| 8 Jul 2015 | frame: truss added, layout (new classificn) added | Mike Chester via e-mail |
| 17 Sep 2013 | PN rotation added | Chris Woodcock via e-mail |
| 5 May 2011 | PN info amended | Chris Woodcock via e-mail |
| 21 Nov 2010 | 4: historically important added | John Baldwin via database |
| 13 Jun 2009 | PN info amended: complicated rota | Chris Woodcock via e-mail |
| 8 Jun 2009 | 1-5: nominal added; 3,4,5: diam amended | Andrew Higson via 00007542 |
| 10 May 2009 | URL added | Chris Woodcock via e-mail |
| 18 May 2007 | PN info added | Aidan Hopkins (info Chris Woodcock) via e-mail |