@@ -39,7 +39,7 @@ output by `rubocop -V`, include them as well. Here's an example:

```

$ [bundle exec] rubocop -V

1.77.0 (using Parser 3.3.5.0, rubocop-ast 1.32.3, analyzing as Ruby 3.3, running on ruby 3.3.5) [x86_64-linux]

1.78.0 (using Parser 3.3.5.0, rubocop-ast 1.32.3, analyzing as Ruby 3.3, running on ruby 3.3.5) [x86_64-linux]

- rubocop-performance 1.22.1

- rubocop-rspec 3.1.0

```

@@ -11,6 +11,8 @@

## master (unreleased)

## 1.78.0 (2025-07-08)

### New features

* [#14331](https://github.com/rubocop/rubocop/pull/14331): Enhance `Naming/MethodName` cop to detect offenses within `define_method` calls. ([@viralpraxis][])

@@ -17,7 +17,7 @@ do so.

```console

$ rubocop -V

1.77.0 (using Parser 3.3.5.0, rubocop-ast 1.32.3, analyzing as Ruby 3.3, running on ruby 3.3.5) [x86_64-linux]

1.78.0 (using Parser 3.3.5.0, rubocop-ast 1.32.3, analyzing as Ruby 3.3, running on ruby 3.3.5) [x86_64-linux]

- rubocop-performance 1.22.1

- rubocop-rspec 3.1.0

```

@@ -53,7 +53,7 @@ To prevent an unwanted RuboCop update you might want to use a conservative versi

in your `Gemfile`:

```rb

gem 'rubocop', '~> 1.77', require: false

gem 'rubocop', '~> 1.78', require: false

```

See [our versioning policy](https://docs.rubocop.org/rubocop/versioning.html) for further details.

@@ -3072,7 +3072,7 @@ Naming/PredicateMethod:

Description: 'Checks that predicate methods end with `?` and non-predicate methods do not.'

Enabled: pending

VersionAdded: '1.76'

VersionChanged: '<<next>>'

VersionChanged: '1.78'

# In `aggressive` mode, the cop will register an offense for predicate methods that

# may return a non-boolean value.

# In `conservative` mode, the cop will *not* register an offense for predicate methods

@@ -2,6 +2,6 @@ name: rubocop

title: RuboCop

# We always provide version without patch here (e.g. 1.1),

# as patch versions should not appear in the docs.

version: ~

version: '1.78'

nav:

- modules/ROOT/nav.adoc

@@ -1747,6 +1747,10 @@ end

Checks for duplicated instance (or singleton) method

definitions.

NOTE: Aliasing a method to itself is allowed, as it indicates that

the developer intends to suppress Ruby's method redefinition warnings.

See https://bugs.ruby-lang.org/issues/13574.

[#examples-lintduplicatemethods]

=== Examples

@@ -1783,6 +1787,18 @@ def foo

end

alias bar foo

# good

alias foo foo

def foo

1

end

# good

alias_method :foo, :foo

def foo

1

end

----

[#allcops_activesupportextensionsenabled_-false-_default_-lintduplicatemethods]

@@ -1052,6 +1052,20 @@ def fooBar; end

# good

def foo_bar; end

# bad

define_method :fooBar do

end

# good

define_method :foo_bar do

end

# bad

Struct.new(:fooBar)

# good

Struct.new(:foo_bar)

----

[#enforcedstyle_-camelcase-namingmethodname]

@@ -1064,6 +1078,20 @@ def foo_bar; end

# good

def fooBar; end

# bad

define_method :foo_bar do

end

# good

define_method :fooBar do

end

# bad

Struct.new(:foo_bar)

# good

Struct.new(:fooBar)

----

[#forbiddenidentifiers_-__def__-_super__-namingmethodname]

@@ -1206,7 +1234,7 @@ end

| Yes

| No

| 1.76

| 1.76

| 1.78

|===

Checks that predicate methods end with `?` and non-predicate methods do not.

@@ -1232,6 +1260,11 @@ registering an offense from a method name that does not confirm to the naming

guidelines. By default, `call` is allowed. The cop also has `AllowedPatterns`

configuration to allow method names by regular expression.

Although returning a call to another predicate method is treated as a boolean value,

certain method names can be known to not return a boolean, despite ending in a `?`

(for example, `Numeric#nonzero?` returns `self` or `nil`). These methods can be

configured using `NonBooleanPredicates`.

The cop can furthermore be configured to allow all bang methods (method names

ending with `!`), with `AllowBangMethods: true` (default false).

@@ -1370,6 +1403,10 @@ end

| AllowBangMethods

| `false`

| Boolean

| WaywardPredicates

| `nonzero?`

| Array

|===

[#namingpredicateprefix]

@@ -74,6 +74,7 @@ Checks for the use of `Kernel#eval` and `Binding#eval`.

eval(something)

binding.eval(something)

Kernel.eval(something)

----

[#securityiomethods]

@@ -252,6 +253,7 @@ URI.parse(something).open

# good (literal strings)

open("foo.text")

URI.open("http://example.com")

URI.parse(url).open

----

[#securityyamlload]

@@ -9262,6 +9262,30 @@ class Foo

end

----

[#allowedmethods_-__puts__-_print__-stylemethodcallwithargsparentheses]

==== AllowedMethods: ["puts", "print"]

[source,ruby]

----

# good

puts "Hello world"

print "Hello world"

# still enforces parentheses on other methods

array.delete(e)

----

[#allowedpatterns_-___assert__-stylemethodcallwithargsparentheses]

==== AllowedPatterns: ["^assert"]

[source,ruby]

----

# good

assert_equal 'test', x

assert_match(/foo/, bar)

# still enforces parentheses on other methods

array.delete(e)

----

[#allowparenthesesinmultilinecall_-false-_default_-stylemethodcallwithargsparentheses]

==== AllowParenthesesInMultilineCall: false (default)