> they've been better about removing the feature flag when the feature is stabilized. The developers of rustc define the language, while the developers of GHC

> they've been better about removing the feature flag when the feature is stabilized. The developers of rustc define the language, while the developers of GHC are trying to be first an implementation of a purportedly independent standard. I don't raise this as defense or attack on either side, but I think it's an important bit of context in understanding the differences.