New IRS limits for 2015 for 401(k)/415(c) have been released:

To summarize:

You may contribute $18,000 (up from $17.5K in 2014).
The catch-up limit will be $6000 (up from $5.5K)
The 415(c) limit (combined company + employee contributions) is $53,000 (up from $52K).
The annual compensation limit is $265,000 (up from $260K).

http://benefitslink.com/src/irs/IR-2014-99.pdf