ruby · kddnewton · Dec 18, 2025 · Dec 18, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,27 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 
 ## [Unreleased]
 
+## [1.7.0] - 2025-12-18
+
+### Added
+
+- Support `4.1` as a version option.
+- Add `equal_loc` to `CallNode`.
+- Add `len()`/`is_empty()` to `ConstantList` and `NodeList` in the Rust API.
+
+### Changed
+
+- Rename version `3.5` to version `4.0`.
+- Fix compiling the gem from source on Windows.
+- Fix parsing of unary method calls like `42.~@`.
+- Reject `def f a, (b) = 1`.
+- Reject endless method as a block parameter default.
+- Reject variable capture in alternative pattern.
+- Many fixes in regards to memory safety, found through fuzzing.
+- Many fixes to better handle invalid syntax, also found through fuzzing.
+- Fix the ruby version used by the `ripper` translator.
+- Fix `ruby_parser` translation comment processing.
+
 ## [1.6.0] - 2025-10-16
 
 ### Added
@@ -695,7 +716,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 
 - 🎉 Initial release! 🎉
 
-[unreleased]: https://github.com/ruby/prism/compare/v1.6.0...HEAD
+[unreleased]: https://github.com/ruby/prism/compare/v1.7.0...HEAD
+[1.7.0]: https://github.com/ruby/prism/compare/v1.6.0...v1.7.0
 [1.6.0]: https://github.com/ruby/prism/compare/v1.5.2...v1.6.0
 [1.5.2]: https://github.com/ruby/prism/compare/v1.5.1...v1.5.2
 [1.5.1]: https://github.com/ruby/prism/compare/v1.5.0...v1.5.1

diff --git a/Gemfile.lock b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/ext/prism/extension.h b/ext/prism/extension.h
@@ -1,7 +1,7 @@
 #ifndef PRISM_EXT_NODE_H
 #define PRISM_EXT_NODE_H
 
-#define EXPECTED_PRISM_VERSION "1.6.0"
+#define EXPECTED_PRISM_VERSION "1.7.0"
 
 #include <ruby.h>
 #include <ruby/encoding.h>

diff --git a/gemfiles/2.7/Gemfile.lock b/gemfiles/2.7/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/3.0/Gemfile.lock b/gemfiles/3.0/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/3.1/Gemfile.lock b/gemfiles/3.1/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/3.2/Gemfile.lock b/gemfiles/3.2/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/3.3/Gemfile.lock b/gemfiles/3.3/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/3.4/Gemfile.lock b/gemfiles/3.4/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/4.0/Gemfile.lock b/gemfiles/4.0/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/
@@ -49,7 +49,7 @@ DEPENDENCIES
   test-unit
 
 RUBY VERSION
-   ruby 3.5.0.dev
+  ruby 3.5.0.dev
 
 BUNDLED WITH
-   4.0.0.dev
+  4.0.0.dev
diff --git a/gemfiles/jruby/Gemfile.lock b/gemfiles/jruby/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/gemfiles/truffleruby/Gemfile.lock b/gemfiles/truffleruby/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    prism (1.6.0)
+    prism (1.7.0)
 
 GEM
   remote: https://rubygems.org/

diff --git a/include/prism/version.h b/include/prism/version.h
@@ -14,7 +14,7 @@
 /**
  * The minor version of the Prism library as an int.
  */
-#define PRISM_VERSION_MINOR 6
+#define PRISM_VERSION_MINOR 7
 
 /**
  * The patch version of the Prism library as an int.
@@ -24,6 +24,6 @@
 /**
  * The version of the Prism library as a constant string.
  */
-#define PRISM_VERSION "1.6.0"
+#define PRISM_VERSION "1.7.0"
 
 #endif
diff --git a/javascript/package.json b/javascript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ruby/prism",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "description": "Prism Ruby parser",
   "type": "module",
   "main": "src/index.js",

diff --git a/prism.gemspec b/prism.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name = "prism"
-  spec.version = "1.6.0"
+  spec.version = "1.7.0"
   spec.authors = ["Shopify"]
   spec.email = ["ruby@shopify.com"]
 

diff --git a/rust/Cargo.lock b/rust/Cargo.lock
diff --git a/rust/ruby-prism-sys/Cargo.toml b/rust/ruby-prism-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruby-prism-sys"
-version = "1.6.0"
+version = "1.7.0"
 edition = "2021"
 license-file = "../../LICENSE.md"
 repository = "https://github.com/ruby/prism"

diff --git a/rust/ruby-prism-sys/tests/utils_tests.rs b/rust/ruby-prism-sys/tests/utils_tests.rs
@@ -12,7 +12,7 @@ fn version_test() {
         CStr::from_ptr(version)
     };
 
-    assert_eq!(&cstring.to_string_lossy(), "1.6.0");
+    assert_eq!(&cstring.to_string_lossy(), "1.7.0");
 }
 
 #[test]

diff --git a/rust/ruby-prism/Cargo.toml b/rust/ruby-prism/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruby-prism"
-version = "1.6.0"
+version = "1.7.0"
 edition = "2021"
 license-file = "../../LICENSE.md"
 repository = "https://github.com/ruby/prism"
@@ -26,7 +26,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
 [dependencies]
-ruby-prism-sys = { version = "1.6.0", path = "../ruby-prism-sys" }
+ruby-prism-sys = { version = "1.7.0", path = "../ruby-prism-sys" }
 
 [features]
 default = ["vendored"]

diff --git a/templates/java/org/prism/Loader.java.erb b/templates/java/org/prism/Loader.java.erb
@@ -101,7 +101,7 @@ public class Loader {
         expect((byte) 'M', "incorrect prism header");
 
         expect((byte) 1, "prism major version does not match");
-        expect((byte) 6, "prism minor version does not match");
+        expect((byte) 7, "prism minor version does not match");
         expect((byte) 0, "prism patch version does not match");
 
         expect((byte) 1, "Loader.java requires no location fields in the serialized output");

diff --git a/templates/javascript/src/deserialize.js.erb b/templates/javascript/src/deserialize.js.erb
@@ -1,7 +1,7 @@
 import * as nodes from "./nodes.js";
 
 const MAJOR_VERSION = 1;
-const MINOR_VERSION = 6;
+const MINOR_VERSION = 7;
 const PATCH_VERSION = 0;
 
 // The DataView getFloat64 function takes an optional second argument that

diff --git a/templates/lib/prism/serialize.rb.erb b/templates/lib/prism/serialize.rb.erb
@@ -10,7 +10,7 @@ module Prism
 
     # The minor version of prism that we are expecting to find in the serialized
     # strings.
-    MINOR_VERSION = 6
+    MINOR_VERSION = 7
 
     # The patch version of prism that we are expecting to find in the serialized
     # strings.
-Original file line number
+Diff line change
@@ Expand Up / @@ -12,7 +12,7 @@ fn version_test() { @@
             CStr::from_ptr(version)
         };
-        assert_eq!(&cstring.to_string_lossy(), "1.6.0");
+        assert_eq!(&cstring.to_string_lossy(), "1.7.0");
     }
     #[test]
@@ Expand Down @@