Release metrics-lib 2.4.0

Let's release metrics-lib 2.4.0 including the #26159 (moved) change, so that we can make similar changes in applications using metrics-lib (#26162 (moved), #25848 (moved), #26169 (moved), #26163 (moved)).

I'm going to prepare a pre-release tarball today.

changed milestone to %metrics-lib 2.4.0

added component::metrics/library milestone::metrics-lib 2.4.0 owner::karsten priority::medium resolution::fixed reviewer::irl reviewer::iwakeh severity::normal status::closed type::task labels

Trac:
Reviewer: N/A to iwakeh, irl

metrics-lib branch: ​​​https://gitweb.torproject.org/user/karsten/metrics-lib.git/log/?h=task-26178

Pre-release tarball: ​​​https://people.torproject.org/~karsten/volatile/metrics-lib-2.4.0-pre0.tar.gz

Trac:
Status: assigned to needs_review

The pre-release was produced with a very old java update-version Created-By: 1.8.0_121-b13 (Oracle Corporation) from January 2017, current is 171 from April 2018 (cf. Oracle release listing and critical patch descriptions). The difference leads to unreproducible bytecode for DescriptorReaderImpl. I don't have that release at hand anymore.

All other checks and tests passed. If irl maybe can confirm using an older Java?

I'd rather write ``` - Replace Gson with Jackson. Applications must provide Jackson - 2.8.6 or higher as dependency and do not need to provide Gson as + 2.8.6 or compatible as dependency and do not need to provide Gson as dependency anymore.

we don't know when a jackson release breaks earlier releases.
</Nitpick>

Oops! That's probably related to me having some brew-related issues and dumping all brew packages. I'll install a new Java version and prepare a new tarball later today. Sorry!

I'll also update the change log entry as suggested.

Changing status. So it'll be easier to notice the update.

Trac:
Status: needs_review to needs_revision

Force-updated metrics-lib branch: ​​​​https://gitweb.torproject.org/user/karsten/metrics-lib.git/log/?h=task-26178

Updated pre-release tarball: ​​​​https://people.torproject.org/~karsten/volatile/metrics-lib-2.4.0-pre1.tar.gz

Trac:
Status: needs_revision to needs_review

All fine and bytecode is reproducible now! Ready to release.

Trac:
Status: needs_review to merge_ready

metrics-lib 2.4.0 is released as of today. Closing. Thanks!

Trac:
Resolution: N/A to fixed
Status: merge_ready to closed
Milestone: N/A to metrics-lib 2.4.0

closed