In reply to Fredt:
LR4 has been replaced by LR5, then LR6, so Adobe will not keep updating LR4 with new camera models.
You can:
Either upgrade to LR6 standalone or one of one of Adobe's subscriptions options
or convert to DNG (Abode's 'universal' RAW) and then import in LR4. This is much more faff than the first option.
Before anyone else chips in: other non-LR processing options of course exist - but you asked for simplest solution (assumed you wanted to stay with LR).
Post edited at 11:36