Ruby/Rails Stack for the apps
App
Ruby
Rails
Learnexa
1.8.7
2.3.4
Expertus Meeting
1.9.2p290
2.3.18
Tin Can LRS
2.1.1p79
3.2.17
Performance
2.1.5p273
4.1.8
All the apps will be migrated to ruby 2.1.5 and rails 4.1.8.