I don't think it's necessary, it's just a habit I have to always include the latest version of dependencies.

Is there a common Boost being used by `bio` packages now? `1.49.0` or `1.51.0`?

And what if one of the Boost updates has important fixes (bugs, performance)? Just updating the Boost versions in all current easyconfigs is a no-go imho, since that breaks backwards compatibility... The only way, I think, is to versionsuffix new ones with `-Boost-1.53.0` (for example)...