An alpha of Sheets 3 is available here.
On touch screens it supports damage marking and attack resolution for 3025 units.
Among other things, details about changes are now available in the changelog to which there is a now a link in the sheets interface.
Improved mech selection menu: Type anywhere for suggestions; move selection with up and down arrows at any time; press enter or click unit name to load; press esc to hide suggestions.
Added contact form for issue reporting.
Adjusted printing styles.
Fixed: ATM3 ammo name.
Fixed: Heavy medium laser range.
Fixed: Clan Light Active Probe missing in inventory.
Fixed: Techbase missing space before year.