Prepare v4.0.0 release (1st PS 0.15.0-compatible release) (#25)

* Update Node to 14 in CI

* Update the changelog

Author: JordanMartinez

.github/workflows/ci.yml

@@ -16,9 +16,9 @@ jobs:
         with:
           purescript: "unstable"
 
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: "12"
+          node-version: "14.x"
 
       - name: Install dependencies
         run: |

CHANGELOG.md

@@ -4,6 +4,16 @@ Notable changes to this project are documented in this file. The format is based
 
 ## [Unreleased]
 
+Breaking changes:
+
+New features:
+
+Bugfixes:
+
+Other improvements:
+
+## [v4.0.0](https://github.com/purescript/purescript-partial/releases/tag/v4.0.0) - 2022-04-27
+
 Breaking changes:
 - Migrate FFI to ES modules (#24 by @kl0tl and @JordanMartinez)