exercism · kotp · Jun 8, 2026 · Jun 3, 2026 · Jun 6, 2026 · Jun 7, 2026
diff --git a/.github/workflows/exercises.yml b/.github/workflows/exercises.yml
@@ -9,11 +9,11 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'macos-latest']
-        perl: ['5.40', '5.38', '5.36', '5.34', '5.32', '5.30', '5.28', '5.26']
+        perl: ['5.42', '5.40', '5.38']
         distribution: ['default']
         include:
           - os: 'windows-latest'
-            perl: '5.40'
+            perl: '5.42'
             distribution: strawberry
 
     name: Perl ${{ matrix.perl }} on ${{ matrix.os }}

diff --git a/exercises/concept/booking-up-for-beauty/.meta/BookingUpForBeauty.pm b/exercises/concept/booking-up-for-beauty/.meta/BookingUpForBeauty.pm
@@ -1,6 +1,6 @@
 package BookingUpForBeauty;
 
-use v5.40;
+use v5.42;
 
 use Time::Piece;
 #use Const::Fast;

diff --git a/exercises/concept/booking-up-for-beauty/lib/BookingUpForBeauty.pm b/exercises/concept/booking-up-for-beauty/lib/BookingUpForBeauty.pm
@@ -1,6 +1,6 @@
 package BookingUpForBeauty;
 
-use v5.40;
+use v5.42;
 
 # Suggested datetime modules you can use:
 #use Time::Piece;

diff --git a/exercises/concept/high-score-board/.meta/HighScoreBoard.pm b/exercises/concept/high-score-board/.meta/HighScoreBoard.pm
@@ -1,6 +1,6 @@
 package HighScoreBoard;
 
-use v5.40;
+use v5.42;
 
 our %Scores;
 

diff --git a/exercises/concept/high-score-board/lib/HighScoreBoard.pm b/exercises/concept/high-score-board/lib/HighScoreBoard.pm
@@ -1,6 +1,6 @@
 package HighScoreBoard;
 
-use v5.40;
+use v5.42;
 
 our %Scores;
 

diff --git a/exercises/concept/inventory-management/.meta/InventoryManagement.pm b/exercises/concept/inventory-management/.meta/InventoryManagement.pm
@@ -1,6 +1,6 @@
 package InventoryManagement;
 
-use v5.40;
+use v5.42;
 
 sub create_inventory ($items) {
     my %inventory;

diff --git a/exercises/concept/inventory-management/lib/InventoryManagement.pm b/exercises/concept/inventory-management/lib/InventoryManagement.pm
@@ -1,6 +1,6 @@
 package InventoryManagement;
 
-use v5.40;
+use v5.42;
 
 sub create_inventory ($items) {
     my %inventory;

diff --git a/exercises/concept/language-list/.meta/LanguageList.pm b/exercises/concept/language-list/.meta/LanguageList.pm
@@ -1,6 +1,6 @@
 package LanguageList;
 
-use v5.40;
+use v5.42;
 use List::Util qw<any>;
 
 our @Languages;

diff --git a/exercises/concept/language-list/lib/LanguageList.pm b/exercises/concept/language-list/lib/LanguageList.pm
@@ -1,6 +1,6 @@
 package LanguageList;
 
-use v5.40;
+use v5.42;
 
 our @Languages;
 

diff --git a/exercises/concept/lasagna/.meta/Lasagna.pm b/exercises/concept/lasagna/.meta/Lasagna.pm
@@ -1,6 +1,6 @@
 package Lasagna;
 
-use v5.40;
+use v5.42;
 
 our $ExpectedMinutesInOven = 40;
 

diff --git a/exercises/concept/lasagna/lib/Lasagna.pm b/exercises/concept/lasagna/lib/Lasagna.pm
@@ -1,6 +1,6 @@
 package Lasagna;
 
-use v5.40;
+use v5.42;
 
 our $ExpectedMinutesInOven = undef;
 

diff --git a/exercises/practice/accumulate/lib/Accumulate.pm b/exercises/practice/accumulate/lib/Accumulate.pm
@@ -1,6 +1,6 @@
 package Accumulate;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<accumulate>;

diff --git a/exercises/practice/acronym/lib/Acronym.pm b/exercises/practice/acronym/lib/Acronym.pm
@@ -1,6 +1,6 @@
 package Acronym;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<abbreviate>;

diff --git a/exercises/practice/affine-cipher/lib/AffineCipher.pm b/exercises/practice/affine-cipher/lib/AffineCipher.pm
@@ -1,6 +1,6 @@
 package AffineCipher;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<encode decode>;

diff --git a/exercises/practice/all-your-base/lib/AllYourBase.pm b/exercises/practice/all-your-base/lib/AllYourBase.pm
@@ -1,6 +1,6 @@
 package AllYourBase;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<rebase>;

diff --git a/exercises/practice/allergies/lib/Allergies.pm b/exercises/practice/allergies/lib/Allergies.pm
@@ -1,6 +1,6 @@
 package Allergies;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<allergic_to list_allergies>;

diff --git a/exercises/practice/anagram/lib/Anagram.pm b/exercises/practice/anagram/lib/Anagram.pm
@@ -1,6 +1,6 @@
 package Anagram;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<match_anagrams>;

diff --git a/exercises/practice/armstrong-numbers/lib/ArmstrongNumbers.pm b/exercises/practice/armstrong-numbers/lib/ArmstrongNumbers.pm
@@ -1,6 +1,6 @@
 package ArmstrongNumbers;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<is_armstrong_number>;

diff --git a/exercises/practice/atbash-cipher/lib/AtbashCipher.pm b/exercises/practice/atbash-cipher/lib/AtbashCipher.pm
@@ -1,6 +1,6 @@
 package AtbashCipher;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<encode_atbash decode_atbash>;

diff --git a/exercises/practice/binary-search-tree/lib/BinarySearchTree.pm b/exercises/practice/binary-search-tree/lib/BinarySearchTree.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class BinarySearchTree;

diff --git a/exercises/practice/binary-search/lib/BinarySearch.pm b/exercises/practice/binary-search/lib/BinarySearch.pm
@@ -1,6 +1,6 @@
 package BinarySearch;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<binary_search>;

diff --git a/exercises/practice/bob/lib/Bob.pm b/exercises/practice/bob/lib/Bob.pm
@@ -1,7 +1,7 @@
 # Declare package 'Bob'
 package Bob;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<hey>;

diff --git a/exercises/practice/bottle-song/lib/BottleSong.pm b/exercises/practice/bottle-song/lib/BottleSong.pm
@@ -1,6 +1,6 @@
 package BottleSong;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<sing>;

diff --git a/exercises/practice/circular-buffer/lib/CircularBuffer.pm b/exercises/practice/circular-buffer/lib/CircularBuffer.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class CircularBuffer;

diff --git a/exercises/practice/clock/lib/Clock.pm b/exercises/practice/clock/lib/Clock.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class Clock;

diff --git a/exercises/practice/collatz-conjecture/lib/CollatzConjecture.pm b/exercises/practice/collatz-conjecture/lib/CollatzConjecture.pm
@@ -1,6 +1,6 @@
 package CollatzConjecture;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<steps>;

diff --git a/exercises/practice/crypto-square/lib/CryptoSquare.pm b/exercises/practice/crypto-square/lib/CryptoSquare.pm
@@ -1,6 +1,6 @@
 package CryptoSquare;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<cipher>;

diff --git a/exercises/practice/custom-set/lib/CustomSet.pm b/exercises/practice/custom-set/lib/CustomSet.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class CustomSet;

diff --git a/exercises/practice/darts/lib/Darts.pm b/exercises/practice/darts/lib/Darts.pm
@@ -1,6 +1,6 @@
 package Darts;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<score_dart>;

diff --git a/exercises/practice/difference-of-squares/lib/DifferenceOfSquares.pm b/exercises/practice/difference-of-squares/lib/DifferenceOfSquares.pm
@@ -1,6 +1,6 @@
 package DifferenceOfSquares;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<square_of_sum sum_of_squares difference_of_squares>;

diff --git a/exercises/practice/dnd-character/lib/DndCharacter.pm b/exercises/practice/dnd-character/lib/DndCharacter.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class DndCharacter;

diff --git a/exercises/practice/eliuds-eggs/lib/EliudsEggs.pm b/exercises/practice/eliuds-eggs/lib/EliudsEggs.pm
@@ -1,6 +1,6 @@
 package EliudsEggs;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<egg_count>;

diff --git a/exercises/practice/etl/lib/ETL.pm b/exercises/practice/etl/lib/ETL.pm
@@ -1,6 +1,6 @@
 package ETL;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<transform>;

diff --git a/exercises/practice/food-chain/lib/FoodChain.pm b/exercises/practice/food-chain/lib/FoodChain.pm
@@ -1,6 +1,6 @@
 package FoodChain;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<recite>;

diff --git a/exercises/practice/gigasecond/lib/Gigasecond.pm b/exercises/practice/gigasecond/lib/Gigasecond.pm
@@ -1,6 +1,6 @@
 package Gigasecond;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<add_gigasecond>;

diff --git a/exercises/practice/grade-school/lib/GradeSchool.pm b/exercises/practice/grade-school/lib/GradeSchool.pm
@@ -1,4 +1,4 @@
-use v5.40;
+use v5.42;
 use experimental qw<class>;
 
 class GradeSchool;

diff --git a/exercises/practice/grains/lib/Grains.pm b/exercises/practice/grains/lib/Grains.pm
@@ -1,6 +1,6 @@
 package Grains;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<grains_on_square total_grains>;

diff --git a/exercises/practice/hamming/lib/Hamming.pm b/exercises/practice/hamming/lib/Hamming.pm
@@ -1,6 +1,6 @@
 package Hamming;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<hamming_distance>;

diff --git a/exercises/practice/hello-world/lib/HelloWorld.pm b/exercises/practice/hello-world/lib/HelloWorld.pm
@@ -1,7 +1,7 @@
 # Declare package 'HelloWorld'
 package HelloWorld;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<hello>;

diff --git a/exercises/practice/house/lib/House.pm b/exercises/practice/house/lib/House.pm
@@ -1,6 +1,6 @@
 package House;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<recite>;

diff --git a/exercises/practice/isogram/lib/Isogram.pm b/exercises/practice/isogram/lib/Isogram.pm
@@ -1,6 +1,6 @@
 package Isogram;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<is_isogram>;

diff --git a/exercises/practice/kindergarten-garden/lib/KindergartenGarden.pm b/exercises/practice/kindergarten-garden/lib/KindergartenGarden.pm
@@ -1,6 +1,6 @@
 package KindergartenGarden;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<plants>;

diff --git a/exercises/practice/knapsack/lib/Knapsack.pm b/exercises/practice/knapsack/lib/Knapsack.pm
@@ -1,6 +1,6 @@
 package Knapsack;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<maximum_value>;

diff --git a/exercises/practice/largest-series-product/lib/LargestSeriesProduct.pm b/exercises/practice/largest-series-product/lib/LargestSeriesProduct.pm
@@ -1,6 +1,6 @@
 package LargestSeriesProduct;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<largest_product>;

diff --git a/exercises/practice/leap/lib/Leap.pm b/exercises/practice/leap/lib/Leap.pm
@@ -1,7 +1,7 @@
 # Declare package 'Leap'
 package Leap;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<is_leap_year>;

diff --git a/exercises/practice/list-ops/lib/ListOps.pm b/exercises/practice/list-ops/lib/ListOps.pm
@@ -1,6 +1,6 @@
 package ListOps;
 
-use v5.40;
+use v5.42;
 
 sub append ( $list1, $list2 ) {
     return undef;

diff --git a/exercises/practice/luhn/lib/Luhn.pm b/exercises/practice/luhn/lib/Luhn.pm
@@ -1,6 +1,6 @@
 package Luhn;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<is_luhn_valid>;

diff --git a/exercises/practice/matching-brackets/lib/MatchingBrackets.pm b/exercises/practice/matching-brackets/lib/MatchingBrackets.pm
@@ -1,6 +1,6 @@
 package MatchingBrackets;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<has_matching_brackets>;

diff --git a/exercises/practice/matrix/lib/Matrix.pm b/exercises/practice/matrix/lib/Matrix.pm
@@ -1,6 +1,6 @@
 package Matrix;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<extract_row extract_column>;

diff --git a/exercises/practice/meetup/lib/Meetup.pm b/exercises/practice/meetup/lib/Meetup.pm
@@ -1,6 +1,6 @@
 package Meetup;
 
-use v5.40;
+use v5.42;
 
 use Exporter qw<import>;
 our @EXPORT_OK = qw<meetup>;