Releasing a new version

[kazu-yamamoto]

@edsko @FinleyMcIlwaine To release a new version, we should agree with/check:

• Version number: 5.2.7 in the sense of no API change or 5.3.0 in the sense of behavior change of workers.
• Server performance: does your server keep the throughput?
• Should we fix http2 sends lots of small window size updates for the connection #129?

[FinleyMcIlwaine]

I think the change in behavior is enough to warrant a bump to 5.3.0. I am not sure yet whether our throughput has been affected. Once I determine what is going on with the empty data frames in our benchmark I will be able to do throughput tests.

As I'm debugging that benchmark, I am still seeing these kinds of window updates in wireshark:

I believe this shows three packets holding six consecutive window updates for the same stream, one being a 9 byte increment, and the rest varying in size from 4069 bytes to 36783 bytes. Does this look like expected behavior? Either way, the small window updates doesn't seem like big enough deal to hold up this release.

Thanks for looping us in @kazu-yamamoto!

[kazu-yamamoto]

The version has bumped to 5.3.0 on the main branch.

The behavior of window update is not what I expect.
I should dig it.

[kazu-yamamoto]

Now I can reproduce the window issue.
Let me consider how to fix it.

[FinleyMcIlwaine]

@kazu-yamamoto We have submitted some patches that fix the empty data frames we were seeing. It would be ideal if those patches were included in the next releases of http2 and http-semantics. If those are in, I think we are ready for a release.

[kazu-yamamoto]

@edsko @FinleyMcIlwaine I'm going to release the following packages:

• http-semantics v0.2.0
• http2 v5.3.0
• http2-tls v0.4.1

Any objections?

I would like to release network-control when the small window update is fixed.

[FinleyMcIlwaine]

@kazu-yamamoto Looks good to us!

[kazu-yamamoto]

The four packages above have been released.
Thank you for your contribution!