diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 19ebb1a..017f2a1 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -3,6 +3,8 @@ name: Lint Code Base
 
 on: pull_request
 
+permissions: read-all
+
 jobs:
   build:
     name: Lint Code Base
@@ -15,13 +17,15 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
         with:
-          # Full git history is needed to get a proper list of changed files within `super-linter`
+          # Full git history is needed to get a proper
+          # list of changed files within `super-linter`
           fetch-depth: 0
 
       - name: Lint Code Base
         uses: github/super-linter@v7
         env:
           VALIDATE_ALL_CODEBASE: false
-          DEFAULT_BRANCH: v4.x
+          VALIDATE_JSON_PRETTIER: false
+          VALIDATE_MARKDOWN_PRETTIER: false
+          DEFAULT_BRANCH: v5.x
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          
\ No newline at end of file
diff --git a/.github/workflows/v4-tests-and-release.yml b/.github/workflows/v5-tests-and-release.yml
similarity index 88%
rename from .github/workflows/v4-tests-and-release.yml
rename to .github/workflows/v5-tests-and-release.yml
index c469686..167128b 100644
--- a/.github/workflows/v4-tests-and-release.yml
+++ b/.github/workflows/v5-tests-and-release.yml
@@ -1,8 +1,9 @@
-name: '[v4] Test and Release'
+name: "[v5] Test and Release"
 on: [push, pull_request]
+permissions: read-all
 jobs:
-  check-v3compatibility:
-    name: 'Check v3 compatibility'
+  check-v4-compatibility:
+    name: "Check v4 compatibility"
     strategy:
       fail-fast: false
       matrix:
@@ -12,14 +13,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Load using v4.x with prefix
+      - name: Load this action from HEAD
         uses: ./
+
+      - name: Load using v4
+        uses: rlespinasse/github-slug-action@v4
         with:
           prefix: V4_
-          short-length: 8
-
-      - name: Load using v3.x
-        uses: rlespinasse/github-slug-action@v3.x
 
       - name: Validate // Partial variables
         run: |
@@ -83,10 +83,10 @@ jobs:
           [[ "${{ env.GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" == "${{ env.V4_GITHUB_EVENT_PULL_REQUEST_HEAD_SHA_SHORT }}" ]]
         shell: bash
 
-  check-v3compatibility-without-checkout:
-    name: 'Check v3 compatibility (without checkout)'
+  check-v4-compatibility-without-checkout:
+    name: "Check v4 compatibility (without checkout)"
     needs:
-      - check-v3compatibility
+      - check-v4-compatibility
     strategy:
       fail-fast: false
       matrix:
@@ -99,14 +99,13 @@ jobs:
           path: this-action
           ref: ${{ github.ref }}
 
-      - name: Load using v4.x with prefix
+      - name: Load this action from HEAD
         uses: ./this-action
+
+      - name: Load using v4
+        uses: rlespinasse/github-slug-action@v4
         with:
           prefix: V4_
-          short-length: 8
-
-      - name: Load using v3.x
-        uses: rlespinasse/github-slug-action@v3.x
 
       - name: Validate // Short SHA variables
         run: |
@@ -115,7 +114,7 @@ jobs:
         shell: bash
 
   display:
-    name: 'Display produced variables'
+    name: "Display produced variables"
     strategy:
       fail-fast: false
       matrix:
@@ -125,7 +124,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Load using v4.x
+      - name: Load this action from HEAD
         uses: ./
 
       - name: Partial variables
@@ -144,6 +143,7 @@ jobs:
           echo "base ref         : ${{ env.GITHUB_BASE_REF_SLUG }}"
           echo "event ref        : ${{ env.GITHUB_EVENT_REF_SLUG }}"
         shell: bash
+
       - name: Slug variables (Case Sensitive)
         run: |
           echo "repository       : ${{ env.GITHUB_REPOSITORY_SLUG_CS }}"
@@ -154,6 +154,7 @@ jobs:
           echo "base ref         : ${{ env.GITHUB_BASE_REF_SLUG_CS }}"
           echo "event ref        : ${{ env.GITHUB_EVENT_REF_SLUG_CS }}"
         shell: bash
+
       - name: Slug URL variables
         run: |
           echo "repository       : ${{ env.GITHUB_REPOSITORY_SLUG_URL }}"
@@ -164,6 +165,7 @@ jobs:
           echo "base ref         : ${{ env.GITHUB_BASE_REF_SLUG_URL }}"
           echo "event ref        : ${{ env.GITHUB_EVENT_REF_SLUG_URL }}"
         shell: bash
+
       - name: Slug URL variables (Case Sensitive)
         run: |
           echo "repository       : ${{ env.GITHUB_REPOSITORY_SLUG_URL_CS }}"
@@ -191,7 +193,7 @@ jobs:
         shell: bash
 
   display-without-checkout:
-    name: 'Display produced variables (without checkout)'
+    name: "Display produced variables (without checkout)"
     needs:
       - display
     strategy:
@@ -206,14 +208,8 @@ jobs:
           path: this-action
           ref: ${{ github.ref }}
 
-      - name: Load using v4.x with prefix
+      - name: Load this action from HEAD
         uses: ./this-action
-        with:
-          prefix: V4_
-          short-length: 8
-
-      - name: Load using v3.x
-        uses: rlespinasse/github-slug-action@v3.x
 
       - name: Short SHA variables
         run: |
@@ -236,11 +232,11 @@ jobs:
       - name: Using correct short length
         uses: ./
         with:
-          prefix: 'CSL_'
+          prefix: "CSL_"
           short-length: 4
       - name: Using correct length // Validate that all short variables lengths are equals to short-length
         run: |
-          env | grep "CSL_" | grep "_SHORT" | cut -d"=" -f2 | while read -r value; do [ "$(echo "$value" | wc -m)" -le 5 ] ; done
+          env | grep "CSL_" | grep "_SHORT" | cut -d"=" -f2 | while read -r value; do [ "${#value}" -le 5 ] ; done
         shell: bash
 
       # Test 2
@@ -248,12 +244,12 @@ jobs:
         id: using-wrong-short-length
         uses: ./
         with:
-          prefix: 'WSL_'
-          short-length: 'wrong'
+          prefix: "WSL_"
+          short-length: "wrong"
         continue-on-error: true
       - name: Using wrong short length // Validate that the action end with an error
         run: |
-          [[ "$(env | grep "WSL_" | grep "_SHORT" | wc -l)" -eq 0 ]]
+          [[ "$(env | grep "WSL_" | grep "_SHORT" -c)" -eq 0 ]]
           [[ "${{ steps.using-wrong-short-length.outcome }}" == "failure" ]]
           [[ "${{ steps.using-wrong-short-length.conclusion }}" == "success" ]]
         shell: bash
@@ -278,11 +274,11 @@ jobs:
       - name: Using correct short length
         uses: ./this-action
         with:
-          prefix: 'CSL_'
+          prefix: "CSL_"
           short-length: 4
       - name: Using correct length // Validate that all short variables lengths are equals to short-length
         run: |
-          env | grep "CSL_" | grep "_SHORT" | cut -d"=" -f2 | while read -r value; do [ "$(echo "$value" | wc -m)" -le 5 ] ; done
+          env | grep "CSL_" | grep "_SHORT" | cut -d"=" -f2 | while read -r value; do [ "${#value}" -le 5 ] ; done
         shell: bash
 
       # Test 2
@@ -290,11 +286,11 @@ jobs:
         id: using-empty-short-length
         uses: ./this-action
         with:
-          prefix: 'ESL_'
+          prefix: "ESL_"
         continue-on-error: true
       - name: Using empty short length // Validate that the action don't end with an error
         run: |
-          [[ "$(env | grep "ESL_" | grep "_SHORT" | wc -l)" -gt 0 ]]
+          [[ "$(env | grep "ESL_" | grep "_SHORT" -c)" -gt 0 ]]
           [[ "${{ steps.using-empty-short-length.outcome }}" == "success" ]]
           [[ "${{ steps.using-empty-short-length.conclusion }}" == "success" ]]
         shell: bash
@@ -304,12 +300,12 @@ jobs:
         id: using-wrong-short-length
         uses: ./this-action
         with:
-          prefix: 'WSL_'
-          short-length: 'wrong'
+          prefix: "WSL_"
+          short-length: "wrong"
         continue-on-error: true
       - name: Using wrong short length // Validate that the action end with an error
         run: |
-          [[ "$(env | grep "WSL_" | grep "_SHORT" | wc -l)" -eq 0 ]]
+          [[ "$(env | grep "WSL_" | grep "_SHORT" -c)" -eq 0 ]]
           [[ "${{ steps.using-wrong-short-length.outcome }}" == "failure" ]]
           [[ "${{ steps.using-wrong-short-length.conclusion }}" == "success" ]]
         shell: bash
@@ -329,11 +325,11 @@ jobs:
       - name: Using correct slug max length
         uses: ./
         with:
-          prefix: 'CML_'
+          prefix: "CML_"
           slug-maxlength: 1
       - name: Using correct max length // Validate that all slug variables lengths are equals or under the slug-maxlength
         run: |
-          env | grep "CML_" | grep "_SLUG" | cut -d"=" -f2 | while read -r value; do [ "$(echo "$value" | wc -m)" -le 2 ] ; done
+          env | grep "CML_" | grep "_SLUG" | cut -d"=" -f2 | while read -r value; do [ "${#value}" -le 2 ] ; done
         shell: bash
 
       # Test 2
@@ -341,12 +337,12 @@ jobs:
         id: using-wrong-slug-max-length
         uses: ./
         with:
-          prefix: 'WML_'
-          slug-maxlength: 'wrong'
+          prefix: "WML_"
+          slug-maxlength: "wrong"
         continue-on-error: true
       - name: Using wrong slug max length // Validate that the action end with an error
         run: |
-          [[ "$(env | grep "WML_" | grep "_SLUG" | wc -l)" -eq 0 ]]
+          [[ "$(env | grep "WML_" | grep "_SLUG" -c)" -eq 0 ]]
           [[ "${{ steps.using-wrong-slug-max-length.outcome }}" == "failure" ]]
           [[ "${{ steps.using-wrong-slug-max-length.conclusion }}" == "success" ]]
         shell: bash
@@ -356,12 +352,12 @@ jobs:
         id: using-empty-slug-max-length
         uses: ./
         with:
-          prefix: 'EML_'
-          slug-maxlength: ''
+          prefix: "EML_"
+          slug-maxlength: ""
         continue-on-error: true
       - name: Using empty slug max length // Validate that the action end with an error
         run: |
-          [[ "$(env | grep "EML_" | grep "_SLUG" | wc -l)" -eq 0 ]]
+          [[ "$(env | grep "EML_" | grep "_SLUG" -c)" -eq 0 ]]
           [[ "${{ steps.using-empty-slug-max-length.outcome }}" == "failure" ]]
           [[ "${{ steps.using-empty-slug-max-length.conclusion }}" == "success" ]]
         shell: bash
@@ -371,21 +367,25 @@ jobs:
         id: using-nolimit-slug-max-length
         uses: ./
         with:
-          prefix: 'NLML_'
-          slug-maxlength: 'nolimit'
+          prefix: "NLML_"
+          slug-maxlength: "nolimit"
       - name: Using no limit on slug max length // Validate that the action end with an error
         run: |
-          [[ "$(env | grep "NLML_" | grep "_SLUG" | wc -l)" -gt 0 ]]
+          [[ "$(env | grep "NLML_" | grep "_SLUG" -c)" -gt 0 ]]
           [[ "${{ steps.using-nolimit-slug-max-length.outcome }}" == "success" ]]
           [[ "${{ steps.using-nolimit-slug-max-length.conclusion }}" == "success" ]]
         shell: bash
 
   release:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      issues: write
+      id-token: write
+      packages: write
     concurrency:
       group: release-${{ github.ref }}-${{ github.event_name }}
     needs:
-      - check-v3compatibility-without-checkout
       - display-without-checkout
       - input-short-length-without-checkout
       - input-slug-maxlength
diff --git a/README.md b/README.md
index d3c255a..44217db 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ This GitHub Action will expose the slug/short values of [some GitHub environment
     - [The SHORT variables doesn't have the same lengths as before](#the-short-variables-doesnt-have-the-same-lengths-as-before)
     - [One of the environment variables doesn't work as intended](#one-of-the-environment-variables-doesnt-work-as-intended)
       - [Known environment variable conflicts](#known-environment-variable-conflicts)
-        - [GITHUB_REF_NAME](#github_ref_name)
+        - [GITHUB\_REF\_NAME](#github_ref_name)
     - [An action could not be found at the URI](#an-action-could-not-be-found-at-the-uri)
   - [Thanks for talking about us](#thanks-for-talking-about-us)
 
@@ -37,7 +37,7 @@ This GitHub Action will expose the slug/short values of [some GitHub environment
   <summary>Others <b>Slug-ish</b> commands are available</summary>
   <p>
 
-- `SLUG_URL` on a variable to have a `slug` variable compliant to be used in an URL
+- `SLUG_URL` on a variable to have a `slug` variable compliant to be used in a URL
   - Like `SLUG` but `.`, and `_` are also replaced by `-`
 - `SHORT` on a variable will limit the string size to ~8 characters
   - Useful for _sha_ value
@@ -56,7 +56,7 @@ Add this in your workflow
 
 ```yaml
 - name: Inject slug/short variables
-  uses: rlespinasse/github-slug-action@v4
+  uses: rlespinasse/github-slug-action@v5
 ```
 
 <details>
@@ -67,7 +67,7 @@ Add this in your workflow
 
   ```yaml
   - name: Inject slug/short variables
-    uses: rlespinasse/github-slug-action@v4
+    uses: rlespinasse/github-slug-action@v5
     with:
       prefix: CI_
   ```
@@ -76,7 +76,7 @@ Add this in your workflow
 
   ```yaml
   - name: Inject slug/short variables
-    uses: rlespinasse/github-slug-action@v4
+    uses: rlespinasse/github-slug-action@v5
     with:
       slug-maxlength: 80 # Use 'nolimit' to remove use of a max length (Default to 63)
   ```
@@ -85,12 +85,12 @@ Add this in your workflow
 
   ```yaml
   - name: Inject slug/short variables
-    uses: rlespinasse/github-slug-action@v4
+    uses: rlespinasse/github-slug-action@v5
     with:
-      short-length: 7 # By default it's up to git to decide, use 8 to have the v3.x behavior
+      short-length: 7 # By default it's up to Git to decide, use 8 to have the v3.x behavior
   ```
 
-  **Warning**: If you leave it empty, you need to checkout the source first in order to let git decide the size by itself.
+  **Warning**: If you leave it empty, you need to checkout the source first in order to let Git decide the size by itself.
   </p>
 </details>
 
@@ -102,14 +102,14 @@ Check for more [examples][examples] (OS usage, URL use, ...)
 
 The short sha length is not the same as previous version.
 
-- `v4` let git configuration decide of it (but you can override it),
-- `v3` and before, it's always a length of 8 characters.
+- Since `v4` let Git configuration decide of it (but you can override it),
+- With `v3` and before, it's always a length of 8 characters.
 
 So to reproduce previous behavior, use
 
 ```yaml
 - name: Inject slug/short variables
-  uses: rlespinasse/github-slug-action@v4
+  uses: rlespinasse/github-slug-action@v5
   with:
     short-length: 8 # Same as v3 and before
 ```
@@ -172,7 +172,7 @@ So to reproduce previous behavior, use
 
 ### The SHORT variables doesn't have the same lengths as before
 
-Since `v4`, it's git who manage the short variables by using [git rev-parse][git-revparse] behaviour.
+Since `v4`, it's Git who manage the short variables by using [git rev-parse][git-revparse] behaviour.
 The length of a short sha depends of the size of our repository and can differ over time.
 
 To manage that moving length, you can use `short-length` input
@@ -213,7 +213,7 @@ A possible workaround is to use `prefix` input
 
 ```yaml
 - name: Inject slug/short variables
-  uses: rlespinasse/github-slug-action@v4
+  uses: rlespinasse/github-slug-action@v5
   with:
     prefix: CI_
 ```
@@ -235,7 +235,7 @@ If the `GIT_REFERENCE` value is
 - `v4.x` or after, the branch don't exists anymore following the [end-of-life for a branch](SECURITY.md#end-of-life-of-a-branch) security process.
 - `master`, the branch don't exists anymore, read more about it on the corresponding issue ([EOL issue][issue-15])
 
-Please, use the current major tag `v4` or a version tag (see [releases pages][releases]) in order to fix your workflow.
+Please, use the current major tag `v5` or a version tag (see [releases pages][releases]) in order to fix your workflow.
 
 ## Thanks for talking about us
 
@@ -243,20 +243,20 @@ In English :gb:
 
 - [Action spotlight by Michael Heap][article-2]
 - [Serverless Deploy Previews on GitHub Actions][article-3]
-- [Let's Build a Continuous Delivery and Branching Process with Github Actions, Vercel and Heroku][article-4]
+- [Let's Build a Continuous Delivery and Branching Process with GitHub Actions, Vercel and Heroku][article-4]
 
-In French :fr: 
+In French :fr:
 
 - [Mettre en place une CI/CD Angular avec GitHub Actions & Netlify][article-1]
-- [Github Actions : enfin des pipelines accessibles aux développeurs][talk-1]
+- [GitHub Actions : enfin des pipelines accessibles aux développeurs][talk-1]
 
 In Chinese :cn:
 
-- [利用github-slug-action暴漏Github Action上下文中的关键变量][article-5]
+- [利用github-slug-action暴漏GitHub Action上下文中的关键变量][article-5]
 
 > The next one is you. _Don't hesitate to add youself to one of these lists._
 
-[examples]: https://github.com/rlespinasse/github-slug-action/tree/v4.x/examples
+[examples]: https://github.com/rlespinasse/github-slug-action/tree/v5.x/examples
 [custom-variable]: https://github.com/rlespinasse/github-slug-action/issues/new?assignees=&labels=enhancement&template=feature_request.md&title=
 [releases]: https://github.com/rlespinasse/github-slug-action/releases
 [issue-15]: https://github.com/rlespinasse/github-slug-action/issues/15
diff --git a/SECURITY.md b/SECURITY.md
index 9151f72..1aed27a 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,7 +4,8 @@
 
 | Version | Supported          | End of Support | Branch | Specific Tags |
 | ------- | ------------------ | -------------- | ------ | ------------- |
-| 4.x     | :white_check_mark: |                | v4.x   | v4            |
+| 5.x     | :white_check_mark: |                | v5.x   | v5            |
+| 4.x     | :white_check_mark: | 2025-01-31     | v4.x   | v4            |
 | 3.x     | :x:                | 2024-01-31     |        | v3.x, v3      |
 | 2.x     | :x:                | 2021-04-05     |        | v2.x, 2.2.0   |
 | 1.x     | :x:                | 2021-04-05     |        | v1.1.x, 1.2.0 |
diff --git a/examples/linux-usage.yml b/examples/linux-usage.yml
index 1275b4b..60d0ede 100644
--- a/examples/linux-usage.yml
+++ b/examples/linux-usage.yml
@@ -6,8 +6,8 @@ jobs:
   usage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: actions/checkout@v4
+      - uses: rlespinasse/github-slug-action@v5
       - name: Output
         run: |
           echo "Partial variables"
diff --git a/examples/macos-usage.yml b/examples/macos-usage.yml
index 43e777f..2b7c4f1 100644
--- a/examples/macos-usage.yml
+++ b/examples/macos-usage.yml
@@ -6,8 +6,8 @@ jobs:
   usage:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: actions/checkout@v4
+      - uses: rlespinasse/github-slug-action@v5
       - name: Output
         run: |
           echo "Partial variables"
diff --git a/examples/url-use.yml b/examples/url-use.yml
index d07ec18..084bc0a 100644
--- a/examples/url-use.yml
+++ b/examples/url-use.yml
@@ -6,15 +6,15 @@ jobs:
   as_subdomain:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: actions/checkout@v4
+      - uses: rlespinasse/github-slug-action@v5
       - run: |
           ./deploy-application.sh --url "https://${{ env.GITHUB_REF_SLUG_URL }}.staging.app.example.com"
 
   as_resource_path:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: actions/checkout@v4
+      - uses: rlespinasse/github-slug-action@v5
       - run: |
           ./deploy-application.sh --url "https://staging.app.example.com/${{ env.GITHUB_REF_SLUG_URL }}"
diff --git a/examples/windows-usage.yml b/examples/windows-usage.yml
index 7685b9d..c299153 100644
--- a/examples/windows-usage.yml
+++ b/examples/windows-usage.yml
@@ -6,8 +6,8 @@ jobs:
   usage:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: actions/checkout@v4
+      - uses: rlespinasse/github-slug-action@v5
       - name: Output
         run: |
           echo "Partial variables"
diff --git a/package.json b/package.json
deleted file mode 100644
index 8b13789..0000000
--- a/package.json
+++ /dev/null
@@ -1 +0,0 @@
-