On Tue, 20 Dec 2011, Johan Tibell wrote:
Hi, I find myself reluctant to add new instances to the unordered-containers package, because doing so would require a major version bump according to the PVP. Major version bumps are annoying for several reasons:
* Libraries that depend on unordered-containers need to be updated and make new releases. * We get rapid successions of major releases without many actual changes (i.e. none as far as most users are concerned).
Introducing new instances is unlikely to break users, as they will only get into trouble if they use orphan instances, which is already asking for trouble!
For the same reason I break the PVP in this respect frequently ... I think that it should be allowed to add instances within a minor version.