This is just a heads-up, since we've taken so long to get around to it. The platform, launcher, and solder should now support Minecraft 1.7.9 and 1.7.10 packs. No action is required on your behalf, those Minecraft versions should appear anywhere Minecraft versions are selected. Due to a sorting issue, 1.7.10 will not show up near the top, but further down the list. We're investigating this issue currently. Have fun!