support for etcd v3

[ceecko]

Is support for etcd v3 planned?

[debjeetsarkar]

Whats up with this ?

[atomfried]

+1

[liemcbl]

++

[connor4312]

If you're looking for an etcd3 client, I've written one that we've been using in production for a while now https://github.com/mixer/etcd3 😄

In general it probably would not make sense for v2 clients to support v3, at least not in a way that abstracts the two versions to make them feel similar. The V3 APIs are fundamentally different from v2--no directories to create/delete/recurse through, no TTLs, transactions over CAS, etc. Trying to abstract will greatly increase complexity (thereby bugs) and reduce usability (developers would need to learn the abstracted API rather than using preexisting knowledge of v2 or v3 APIs).