[technoweenie]

GitHub also supports txt and other common document formats: https://github.com/blog/2061-attach-files-to-comments

[shmerl]

Ah, that's a recent addition. Thanks for the pointer. Does it work for bugs? The post mentions pull request comments.

[anonicode]

Yes. It works on issues too.

[silverwind]

I wonder why they have restriction based on file extension in place, it's just inconvenient that you have to rename .patch to .txt only for the UI to accept it.