Version 5.58.0 ### Bug fixes Make backspace delete by code point, not glyph. Suppress flickering focus outline when clicking on scrollbars in Chrome. Fix a bug that prevented attributes added via `markText` from showing up unless the span also had some other styling. Suppress cut and paste context menu entries in readonly editors in Chrome. [placeholder addon](https://codemirror.net/doc/manual.html#addon_placeholder): Update placeholder visibility during composition. ### New features Make it less cumbersome to style new lint message types. [vim bindings](https://codemirror.net/demo/vim.html): Support black hole register, `gn` and `gN`