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Whotyqwdi Ubtggz: the st.plotly_chart deprecation warning has reemerged - not just a reminder, but a stubborn holdover even when width is passed directly.

While the updated docs urge switching from width=content to config for layout, using width="content" still triggers a deprecation alert. This isn’t a bug - it’s a regression. The old behavior persisted despite the change, confusing even seasoned Plotly users.

Here’s the hard truth: width=content won’t silence the warning. The library still flags it because internal configuration defaults haven’t caught up.

The real issue? Many developers assume width="content" disables deprecation warnings, but it doesn’t. Meanwhile, config now holds shape, layout, and responsive rules - so use st.plotly_chart(fig, config={'width': 'content'}) for clarity and future safety.

No hidden tricks or magic here - just consistent, documented behavior.

This isn’t just about aesthetics. It’s about predictable output when debugging charts in production. When widths don’t behave as expected, even experts lose confidence.

So next time you see that warning, don’t silence it - use config. It’s the only reliable path forward.

Is this a regression? Absolutely. Does it break workflows? Yes.

The bottom line: trust config over width=content - and when in doubt, check the docs. Not the deprecation message, but the official, stable behavior.

Keyword: st.plotly_chart | Safety: config argument | SEO: Plotly deprecation fix | Powered by: Streamlit 1.50.0 | Closing insight: Width isn’t silent - config is.