From: Frederick Cheung <frederick.cheung@...>
Date: 2007-12-27T01:38:20+09:00
Subject: Re: Legacy support (Was: Base64 not there makes Rails 2.0.2 fail to load in 1.9.0)


On 26 Dec 2007, at 16:27, Charles Oliver Nutter wrote:
>
> For optimizations, this is fairly non-invasive. Most of the big  
> optimizations in 1.9 are there because people won't miss them (fast  
> fixnum math, constant-time literal whens, etc). So users of 1.8 may  
> choose to turn those optimizations on right away as we implement them.
>
> But for features...would it be useful to be able to turn on e.g.  
> M17N strings or Fibers but leave the rest of 1.8 semantics intact?
>
Is that going to complicate things vastly? Instead of having the 2  
platforms (1.8 & 1.9) you'd now have as many platforms as you can  
create combinations of enabled features (or have I misunderstood)

Fred

> - Charlie
>