Adam Wheeler updated the developer documentation for the JuliaLang/julia repository, focusing on the parser migration in Julia 1.10. He clarified that JuliaSyntax.jl is now the default parser and provided detailed instructions for reverting to the previous femtolisp-based parser if necessary. Using Markdown and leveraging his documentation skills, Adam delivered these changes through a single, targeted commit. His work addressed migration ambiguity and improved onboarding for both users and contributors by aligning the documentation with ongoing parser initiatives. While no bugs were fixed, the depth of the update ensured that the documentation accurately reflected the current state of the project.