diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 132ec75..32dbe0e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.2.2"
+  ".": "5.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5a0a17..cee366b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## [5.0.0](https://github.com/HubSpotWebTeam/wt-eslint-node/compare/v4.2.2...v5.0.0) (2026-08-24)
+
+
+### ⚠ BREAKING CHANGES
+
+* configs.recommended now includes 'hs-web-team/no-reduce-accumulator-copy' at 'error' severity. Any project using configs.recommended that spreads or concats the accumulator inside a reduce/reduceRight callback will receive a lint error on the next version bump. Refactor to a for...of loop with in-place mutation, or use flatMap/Object.groupBy.
+
+### Features
+
+* add max-params rule (warn at 4+ parameters) ([6c10ada](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/6c10adac401f8436cffe335d43ee58c17b7fb36b))
+* add max-params rule (warn at 4+ parameters) ([#60](https://github.com/HubSpotWebTeam/wt-eslint-node/issues/60)) ([58ef761](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/58ef761c103a475bc65f2b5ab9c6eace131efe6a))
+* add no-reduce-accumulator-copy rule ([#62](https://github.com/HubSpotWebTeam/wt-eslint-node/issues/62)) ([c70cab7](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/c70cab74eef4dfe9acdc3c74454aa7f5c024ab42))
+* mark no-reduce-accumulator-copy as breaking change ([2fb61d5](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/2fb61d554f1fdbf270115762be94f3849705b1c0))
+
+
+### Bug Fixes
+
+* allow modifier classes inside :is()/:not()/:where() with a base class ([#49](https://github.com/HubSpotWebTeam/wt-eslint-node/issues/49)) ([c56993c](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/c56993cbdfa3d7cb32dfe98c16132f4b5a64feac))
+* return null from getRootDir when hubspot.config.yml is not found ([#51](https://github.com/HubSpotWebTeam/wt-eslint-node/issues/51)) ([8ea3295](https://github.com/HubSpotWebTeam/wt-eslint-node/commit/8ea32956ee6fde0d99a6b4d8ad1db046514fd9f8))
+
 ## [4.2.2](https://github.com/HubSpotWebTeam/wt-eslint-node/compare/v4.2.1...v4.2.2) (2026-06-18)
 
 
diff --git a/package-lock.json b/package-lock.json
index b5cc26a..32b53a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@hs-web-team/eslint-config-node",
-  "version": "4.2.2",
+  "version": "5.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@hs-web-team/eslint-config-node",
-      "version": "4.2.2",
+      "version": "5.0.0",
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index 61bf4ac..a91ebcc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hs-web-team/eslint-config-node",
-  "version": "4.2.2",
+  "version": "5.0.0",
   "description": "HubSpot Marketing WebTeam shared configurations for ESLint, Prettier, Stylelint, and Cypress",
   "files": [
     ".prettierrc.json",