I\'m using RHEL 5.3, which is shipped with gcc 4.1.2 and boost 1.33. There\'re some features I want, that are missing in the boost 1.33. Therefore the thought was to upgrad
With a bit of luck (and a lot of care) you can probably get away with using entirely new headers. For almost anything else, it could get ugly in a hurry, because some parts of Boost refer to other parts, and if some v. 1.33 code accidentally loads a v. 1.43 header for its dependency, there's a pretty good chance you're going to get some problems as a result -- about the best you can hope for is a quick, clean death (crash) at that point, but you might easily get much worse (e.g., silent data corruption).