All changes to tower
| Date | Change | Source |
|---|---|---|
| 29 Jan 2025 | HCACR URL added | Lucas Williams, HCACR Web Master |
| 15 Jul 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 9 Dec 2015 | URL removed | Xenu check: error 404 via URLbad |
| 28 Nov 2015 | Dove URL now dubious; error 404 webpage cannot be found | Xenu check via URLbad |
| 3 Jul 2014 | 1-5: wt amended | Philip Denton via 00010790 |
| 23 Feb 2012 | 3: historically important | David Knight via e-mail |
| 5 Oct 2006 | Tenor nominal added (F-24c) | Andrew Higson via e-mail |