Bump to protobuf==24.4 - #11686

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

Cc @nipunn1313

Hi @ijknabla , since these files are auto-generated, one should also update the generator script along with them! Otherwise we risk loosing these changes and/or creating confusion next time they're run.
Look for the PROTOBUF_VERSION variable in https://github.com/python/typeshed/blob/main/scripts/generate_proto_stubs.sh . I don't remember if this bash script runs on windows under git bash, I might have used WSL last time I ran them.

Thanks to @Avasam , I now have a better understanding of the issues.

Latest release of types-protobuf 4.24.0.20240311 seems to provide a type hint for protobuf==4.24.0.

The referenced script shows that when types-protobuf==4.24.0.20240311 is generated, it is different from PROTOBUF_VERSION==4.21.8.

Can we change to PROTOBUF_VERSION===4.24.0 and run this script again and release the result as types-protobuf 4.24.0.XXX?

Oh, Simple change did not work.

 # followed by committing the changes to typeshed
 #
 # Update these two variables when rerunning script
-PROTOBUF_VERSION=21.8
-PYTHON_PROTOBUF_VERSION=4.21.8
+PROTOBUF_VERSION=24.0
+PYTHON_PROTOBUF_VERSION=4.24.0
 MYPY_PROTOBUF_VERSION=3.5.0

$ ./scripts/generate_proto_stubs.sh
# 
+ wget https://github.com/protocolbuffers/protobuf/releases/download/v24.0/protobuf-python-4.24.0.zip
--2024-04-02 00:51:55--  https://github.com/protocolbuffers/protobuf/releases/download/v24.0/protobuf-python-4.24.0.zip
Resolving github.com (github.com)... 20.27.177.113
Connecting to github.com (github.com)|20.27.177.113|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2024-04-02 00:51:55 ERROR 404: Not Found.

I think that this is caused by a change in the release structure of protobuf.

• EXISTS https://github.com/protocolbuffers/protobuf/releases/download/v21.8/protobuf-python-4.21.8.zip
• NOT EXISTS https://github.com/protocolbuffers/protobuf/releases/download/v24.0/protobuf-python-4.24.0.zip

If we don't think about script compatibility, we could solve this problem by simply updating the URL in the shell script.

@ijknabla I'm working on updating the script for v22+ as we speak, expect a PR soon

script compatibility for generate_proto_stubs.sh is not important!
Note that I haven't tested the generator (mypy-protobuf) with the new protobuf 24.4 yet.

But in general, protobuf python API is pretty stable, so I think you can go for it.

I would expect some changes to METADATA.toml to happen as part of this PR too.

seems like we could bump to 25 and 26 as well
https://github.com/protocolbuffers/protobuf/releases/

I just released mypy-protobuf 3.6.0 that is confirmed compatible to protobuf 3.25.

I propose that you continue with this PR bumping to 24.4 - then later we can bump to 25 and a bit later after that 26.

Thanks to all of you for your help in resolving this.
Thank you very much.