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- Mongo will be upgraded to at least 3.0 and will switch to using the Wired Tiger storage engine. This storage engine will not transparently read MMAPv1 files from 2.6 and will require a dump/restore most likely.
- ElasticSearch will be upgraded, probably to 1.5 which is what we use in production. This will coincide with changes to the forums service to support the newer version.
- Preview Language options changed from query parametes (preview-lang) to a form that requires login on LMS and Studio. This form can be found by appending /update_lang/ to the root URLs of either site.
Deployment Issues to Keep in Mind
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