| Date | Change | Source |
|---|
| 11 Aug 2024 | Fr1, Fr2: truss, layout amended | Andrew Ogden, Taylors |
| 20 Jul 2024 | Fr2: Mod contractor added | Andrew Ogden, Taylors via REMRKS480 |
| 12 May 2022 | Fr1,Fr2: truss added | Andrew Ogden |
| 21 Feb 2020 | www.cl.cam.ac.uk/|chn2/pz.html removed - not working | TimJ (#266) via URLbad |
| 17 Sep 2012 | Restoration work finished; bells back in action | TimJ (info: Phil Tremain per Mary Jones, Tower Sec) via e-mail |
| 14 Oct 2011 | Restoration work has started | Paul Mason (JT) via e-mail |
| 18 Sep 2009 | 1-8: canons, turning, frame id added; 1-7: nominal added | Andrew Higson via 00008126 |
| 5,6,8: diam amended; frame info added | Andrew Higson via 00008126 |
| 30 Dec 2007 | Tenor note not Eb; nominal: D+48c | Taylor Rings spreadsheet (ADH) via JCB |
| 16 Oct 2004 | Slight dedication change to match Crockford | Graham Nabb check via e-mail |