Solidity: Compiled contracts larger than they used to be

[area]

I've got a (rather large) contract that compiles to a larger bytecode than it used to. After a binary search using the binaries in https://github.com/ethereum/solc-bin , the change appears to have occurred between v0.3.5-2016-07-21-6610add and v0.3.5-2016-08-03-3b21d98, where the bytecode has gone from 14972 bytes to 15384 bytes.

Is there a reason to expect this behaviour? And if I can't find a smaller working example, is there a way I can narrow the window to look in to find out what's happened?

[chriseth]

Yes, it is expected behaviour. We disabled the optimizer in some situations because it produced faulty code. We are planning to add a new optimizer stage that should reduce the size again.

[elenadimitrova]

Would be nice to document this in the release

[chriseth]

Right, thanks for the tip, just did that :-)