chore: bump toolchain to v4.27.0-rc1 - #673
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Components bundle together HTML, JS, and CSS.
SubVerso now retains the fact that they were errors.
Replaces the Lean command parser with a new one that takes a block at a time, rather than parsing Verso as one giant command and implementing incrementality "by hand". Each Verso block is elaborated to a top-level definition, which makes the checking for `sorry` and errors work the way it should. Without this, the `sorry` warning was emitted in the presence of errors, which was inconsistent with the rest of Lean. This is also a step towards elaborating Verso directly, which will probably improve performance in the future. A diff threshold was added to `leanOutput` in the manual genre to account for differences in IR shown in examples in the reference manual as a result of compiling blocks to separate defs.
It can now work in many genres, with only an instance declaration needed. In particular, it works in blogs.
Prevents spurious rebuilds from subprocesses and repairs broken hint formatting.
This allows Verso extensions to register things like cleanup functions for internal state that they can't otherwise control (e.g. temporary directories).
Co-authored-by: Jonathan Merritt <jmerritt@canva.com> Co-authored-by: Robert J. Simmons <442315+robsimmons@users.noreply.github.com>
….27.0-rc1 # Conflicts: # lean-toolchain
🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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