* [pcb artwork](v2.0/telemega-pcb.pdf)
* [bill of materials](v2.0/partslist.csv)
+## Version 3.0 ##
+
+The changes between v3 and v3 of TeleMega ...
+
+TeleMega v3.0 required AltOS version ? or later.
+
+### Artifacts ###
+
+Here are pdf snapshots of the files for Production PCB version 3.0:
+
+* [schematic](v3.0/telemega-sch.pdf)
+* [pcb artwork](v3.0/telemega-pcb.pdf)
+* [bill of materials](v3.0/partslist.csv)
+
+## Version 4.0 ##
+
+The changes between v3 and v4 of TeleMega ...
+
+TeleMega v4.0 required AltOS version ? or later.
+
+### Artifacts ###
+
+Here are pdf snapshots of the files for Production PCB version 4.0:
+
+* [schematic](v4.0/telemega-sch.pdf)
+* [pcb artwork](v4.0/telemega-pcb.pdf)
+* [bill of materials](v4.0/partslist.csv)
+