preparing new v3 release

[jkralik]

v3 main branch

https://github.com/plgd-dev/go-coap/tree/v3

Features:

• use only one pool.Message for tcp,udp,dtls - udp/client: pools, messages and conversion #325
• allow get MessageID and Type from pool.Message
• allow set MessageID and Type to pool.Message
• Optional ETag and Content-Format in SetResponse #140
• Enable inactivity monitor for DTLS/UDP by default #312
• SetToken in SetResponse #251
• Incorrect NSTART handling #226
• update go-coap version to v3
• Resolve parallel request's to the same device endpoint  #383
• remove duplicate code as match as possible
• ...

Optional features:

• netip in Go 1.18 #313

Release date

2022.10

[jkralik]

@beriberikix @tim-golioth As we prepare to release version 3, I would like to ask if you have any changes from the API side that need to be made, or if you would be able to contribute some changes, for example #313.

[tim-golioth]

I don't have anything at the moment. Only thing I had recently was #341 , but that has been approved/merged already. (Note on this one: this PR has a bug in that it looks like the actual code being returned is 4.17, not 4.29. I have a ticket in our backlog to fix this, which I'll be sure to open a PR here as well. Should be able to get it fixed this week.)

Let me take a look at #313 and see what's involved. Since this release is targeting 2022.10, it might be something I can take on.

[tim-golioth]

follow up about the 4.17/4.29 issue: this is a no-op. it was specific to our internal code. nothing related to go-coap.

[tim-golioth]

@jkralik i don't have the bandwidth to take on #313 at the moment. i am interested in the topic, so maybe i can find time in q4 to work on this. if this is urgent, maybe there is someone else who can work on it in the meantime.