| Version 1.1 | 1/2011 | 1715 map added; Churches page added |
| Version 1.2 | 2/2011 | Slavery in Tredyffrin added; Minor change to Churches page |
| Version 1.3 | 4/2011 | Reparations & 1777 map pages added; subsiduary glossaries also added. |
| Version 1.4 | 1/2012 | Revolutionary War and Inns pages added, Reparations moved down a level. Currency page added. Mills & Tanneries added |
| Version 1.5 | 6/2012 | Roads & Tax returns, Original Purchasers & Deed Histories added. Javascript files footer, header, and mapHeader created to handle standard code. |
| Version 2.0 | 7/2012 | Original Purchases map and Roads maps added. A number of other changes |
| Version 2.1 | 8/2012 | File names no longer include version number instead it is listing in text Added window names to all maps Genealogical, Schools and Buildings sections added |
| Version 2.2 | 3/2013 | Updated Godfrey family tree |
| 4/2013 | eliminated google maps for churches, inns, and mills | |
| 7/2013 | added trees page | |
| 11/2013 | deleted page names except for external sites | |
| Version 2.2.1 | 12/2013 | Created change log; updated Deed table V; updated David genealogy; updated Evans genealogy. |
| Version 2.3 | 6/2015 | Added Bean, Hunter, and Rowan family trees |
| Version 2.4 | 12/2015 | Renamed St. Peter’s Mill to Church Road Mill. Extended William Mordant Patent deed histories. |
| Version 3.0 | 11/2016 | Added 1883 map. Changed title to Tredyffrin History. |
| Version 3.1 | 12/2016 | Added Mary Jones Diary. |
| Version 3.2 | 1/2020 | Added Railroads. |