Fix issue 491 - update changelog for 1.4.0 changes

[chrispsommers]

Reviewed all commits since v1.3.0 and ensured every change was mentioned in the change log. Added some structure to categorize the changes.

[chrispsommers]

@jafingerhut @smolkaj could you please take a look? I'm hoping to pave the way for a release before the 4 Workshop.

[smolkaj]

This looks great to me, thanks!

[chrispsommers]

@duskmoon314 For some reason, merging in this modest change to .mdk and .md files produced a codecheck failure in the rust generated code. DO you have any idea why this might have happened? Here's the failed job: https://github.com/p4lang/p4runtime/actions/runs/11004409981/job/30555272186

I experimentally ran codegen/update.sh in my workspace on the source branch and there were no changes to generated Rust code so I'm curious what would "fix" this breakage?

[duskmoon314]

Weirdly, running CI/check_codegen.sh on the latest commit doesn't fail in my local environment. I need more time to find out why.

[chrispsommers]

Thanks for responding so quickly and offering to investigate!

[duskmoon314]

I think I found out why.

In the previous PR #500, I only pinned the protoc-gen-prost/tonic version. But Cargo ignores the lock file by default. Thus, when building the docker image, cargo install will always use the latest version of protoc-gen-prost/tonic's dependencies.

Three days ago, prost released a new version. This version changed some generation methods, which is why the CI failed.

I tried adding --locked to cargo install, which seems to solve this problem. A new PR will be opened soon.

[duskmoon314]

#502 is opened to solve the issue. Please review.

I hope this is the last commit to solve this kind version issue. orz