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Release Note 2.0

Soutaro Matsumoto edited this page Apr 14, 2026 · 4 revisions

The latest version of Steep 2.0 is 2.0.0.

Some of the highlights in Steep 2.0 are:

  • Inline RBS Declaration
  • steep server command
  • steep query command

You can install it with $ gem install steep or using Bundler.

gem 'steep', require: false

See the CHANGELOG for the details.

Inline RBS Declaration

Steep 2.0 ships with experimental inline RBS declaration.

You can enable the feature by declaring that a set of source code to type check uses inline RBS declarations.

check "lib", inline: true

Then you can write the inline RBS declaration comments for type checking your source code.

See inline.md in RBS repo for the details of supported syntaxes.

steep server

steep query

Diagnostics updates

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