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* Make the lazy variant interoperable. The remaining optimisation for `V1Lazy` for a listener in the negotiation, whereby the listener delays flushing of the multistream version header, is hereby removed. The remaining effect of `V1Lazy` is only on the side of the dialer, which delays flushing of its singular protocol proposal in order to send it together with the first application data (or an attempt is made to read from the negotiated stream, which similarly triggers a flush of the protocol proposal). This permits `V1Lazy` dialers to be interoperable with `V1` listeners. The remaining theoretical pitfall whereby application data gets misinterpreted as another protocol proposal by a listener remains, however unlikely. `V1` remains the default, but we may eventually risk just making this lazy dialer flush a part of the default `V1` implementation, removing the dedicated `V1Lazy` version identifier. * Update CHANGELOG * Separate versions from mere header lines. Every multistream-select version maps to a specific header line, but there may be different variants of the same multistream-select version using the same header line, i.e. the same wire protocol. * Cleanup * Update misc/multistream-select/CHANGELOG.md