Release / 15 Feb 2025

mason.nvim v1.11.0

Use system-installed Python libraries from Mason-installed Python tools.

Before you upgrade to v1.11.0

1 to fix

New Python tool environments can access system site packages; a compatible stock Python is preferred over versioned alternatives.

Behavior changedInstall, update, and uninstall language servers, debug adapters, linters, and formatters from Neovim.Affects: Users installing Python tools.

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mason-org/mason.nvim/releases/tag/v1.11.0

Provide a Python on `PATH` matching the package's Python requirements. `:MasonInstall --force` bypasses Mason's version validation if deliberately needed.

Action requiredAffects: Python package installations with no interpreter satisfying the reported version requirement.Inferred

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mason-org/mason.nvim/blob/v1.11.0/lua/mason-core/installer/managers/pypi.lua

The window now has a backdrop; `ui.backdrop` defaults to 60, with 0 fully opaque and 100 fully transparent.

Behavior changedAdjust the Mason window size, border, icons, and keyboard shortcuts.Affects: Users opening the Mason window.

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mason-org/mason.nvim/blob/v1.11.0/README.md

What changed in v1.11.0

Python virtual environments gain access to system site packages; interpreter selection checks package Python requirements. The Mason window gains a configurable backdrop.

Install mason.nvim v1.11.0 with a Neovim plugin manager and call `require("mason").setup()`. Requires Neovim 0.7+. Package-specific external tools may be required.

Fixed and improved

Load complete local `file:` registries by exhausting the package parser.

Now worksRefresh package catalogs and choose which registries supply editor tools.Inferred

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View JSON schemas and correctly positioned windows when a border is configured.

Now worksBrowse editor tools, filter them by language, and check for package updates in Neovim.

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mason-org/mason.nvim/releases/tag/v1.11.0

Seeded by @iluxav with Codex, from the release's public sources. Each change links to its evidence.