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Comment by usef-

2 days ago

Has the team announced that they're breaking backwards compatibility, or that testing will be reduced?

No, the team mislead people by claiming the rewrite was experimental only to merge 1M lines of unreviewed code merely days later. Responsible software developers don't operate on blind trust, and both the Bun code and the maintainers are highly unpredictable at this point. That's more than sufficient technical grounds to drop an optional and replaceable dependency, especially since there are no user-facing consequences beyond the bruised egos of a cult following that demands blind loyalty to its tech‑bro leaders.

  • Who did they mislead? A few days later it was no longer experimental and it became the main dev branch as they decided it would be the way forward for development (see the blog post on why). No stable release has been declared yet.

    Here was the Bun team's message on merge:

    > It passes Bun's pre-existing test suite on all platforms (and fixes several memory leaks and flaky tests), the binary size shrinks by 3 MB - 8 MB, the benchmarks are between neutral and faster - and most importantly, we now have compiler-assisted tools for catching & preventing memory bugs, which have costed the team an enormous amount of development & debugging time over the years.

    >> The codebase is otherwise largely the same. The same architecture, the same data structures. Bun still uses few 3rd party libraries. No async rust.

    • "Who did they mislead? They just changed their minds a few days later and words aren't what you think they mean. Here's the team's PR statement containing assertions about the 1M lines of code they never reviewed."

      It's unfortunate that this is what some call "engineering" while labeling actual science and engineering as "politics."

      yt-dlp is under no obligation to keep using a dependency from vendors that instantly flip flop and re-frame their own words and actions. That's what actual due diligence and responsible engineering looks like.

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