diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
index 8a57aeb..2764ca6 100644
--- a/.github/workflows/blank.yml
+++ b/.github/workflows/blank.yml
@@ -21,6 +21,34 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Tests
+        run: |
+          echo $GITHUB_REF
+          echo ${{ github.ref }}
+          echo ${{ github.ref_name }}
+          echo ${{ github.head_ref }}
+          echo ${{ github.base_ref }}
+          echo ${{ github.repository }}
+          echo $GITHUB_REPOSITORY
+
+          echo "******** BINDER *********"
+          git checkout binder
+          ls
+          echo ${{ github.sha }} > sha1.txt
+          git add sha1.txt
+          git config user.name "Binder Bot"
+          git commit -m "edit sha1"
+          git push origin binder
+
+
+          echo "******** CURRENT REF *********"
+          LOCAL_REF=${GITHUB_REF/refs\//}
+          echo LOCAL_REF=$LOCAL_REF
+          git checkout ${LOCAL_REF}
+          ls
 
       - name: Set env variables for github+binder links in doc
         run: |
@@ -53,6 +81,8 @@ jobs:
           echo ${AUTODOC_NOTEBOOKS_REPO_URL}
           echo ${AUTODOC_NOTEBOOKS_BRANCH}
 
+          echo nb_branch: ${{ env.AUTODOC_NOTEBOOKS_BRANCH }}
+
       # Runs a single command using the runners shell
       - name: Run a one-line script
         run: echo  ${{ github.ref }}
@@ -65,4 +95,3 @@ jobs:
       - name: deploy
         if: ${{ github.ref == 'refs/heads/main' }}
         run: echo deploy
-
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b7a9b44..d60ccf2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,39 +10,52 @@ on:
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
-  # This workflow contains a single job called "build"
-  build:
-    # The type of runner that the job will run on
+  create-binder-env:
     runs-on: ubuntu-latest
-
-    # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
-      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Get scikit-decide release version and define new binder env tag
+        run: |
+          TAG_NAME=${GITHUB_REF/refs\/tags\//}  # stripping "refs/tags/"
+          SKDECIDE_VERSION=${TAG_NAME/v/}  # stripping "v"
+          BINDER_TAG=binder_${TAG_NAME}
+          echo "BINDER_TAG=${BINDER_TAG}" >> $GITHUB_ENV
+          echo "SKDECIDE_VERSION=${SKDECIDE_VERSION}" >> $GITHUB_ENV
+
+      # Checks-out binder branch
       - uses: actions/checkout@v2
+        with:
+          ref: binder
 
+      - name: Update scikit-decide dependency and tag the environement
+        run: |
+          sed -e "s/scikit-decide\[all\]==.*/scikit-decide\[all\]==${SKDECIDE_VERSION}/" environment.yml > environment.yml.new
+          mv environment.yml.new environment.yml
+          git config user.name "Binder Bot"
+          git config user.email "binder@bot.com"
+          git commit environment.yml -m "Update scikit-decide dependency"
+          git tag -a ${BINDER_TAG} -m "Release binder environment for scikit-decide ${SKDECIDE_VERSION}"
+          git push origin ${BINDER_TAG}
+
+      - name: cache binder build on mybinder.org
+        uses: jupyterhub/repo2docker-action@master
+        with:
+          NO_PUSH: true
+          MYBINDERORG_TAG: ${{ env.BINDER_TAG }}
+
+  build-docs:
+    runs-on: ubuntu-latest
+    env:
+      DOCS_VERSION_PATH: /
+
+    steps:
       - name: Set env variables for github+binder links in doc
         run: |
-          # binder environment repo and branch
-          AUTODOC_BINDER_ENV_GH_REPO_NAME="airbus/scikit-decide"
-          AUTODOC_BINDER_ENV_GH_BRANCH="binder"
-          # notebooks source repo and branch depending if it is a commit push or a PR
-          if [[ $GITHUB_REF == refs/pull* ]];
-          then
-              AUTODOC_NOTEBOOKS_REPO_URL="${GITHUB_SERVER_URL}/${{ github.event.pull_request.head.repo.full_name }}"
-              AUTODOC_NOTEBOOKS_BRANCH=${GITHUB_HEAD_REF}
-          elif [[ $GITHUB_REF == refs/heads* ]];
-          then
-              AUTODOC_NOTEBOOKS_REPO_URL=${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}
-              AUTODOC_NOTEBOOKS_BRANCH=${GITHUB_REF/refs\/heads\//}
-          fi
-          # export in GITHUB_ENV for next steps
-          echo "AUTODOC_BINDER_ENV_GH_REPO_NAME=${AUTODOC_BINDER_ENV_GH_REPO_NAME}" >> $GITHUB_ENV
-          echo "AUTODOC_BINDER_ENV_GH_BRANCH=${AUTODOC_BINDER_ENV_GH_BRANCH}" >> $GITHUB_ENV
-          echo "AUTODOC_NOTEBOOKS_REPO_URL=${AUTODOC_NOTEBOOKS_REPO_URL}" >> $GITHUB_ENV
-          echo "AUTODOC_NOTEBOOKS_BRANCH=${AUTODOC_NOTEBOOKS_BRANCH}" >> $GITHUB_ENV
-          # check computed variables
-          echo "Binder env: ${AUTODOC_BINDER_ENV_GH_REPO_NAME}/${AUTODOC_BINDER_ENV_GH_BRANCH}"
-          echo "Notebooks source: ${AUTODOC_NOTEBOOKS_REPO_URL}/tree/${AUTODOC_NOTEBOOKS_BRANCH}"
+          TAG_NAME=${GITHUB_REF/refs\/tags\//}  # stripping "refs/tags/"
+          BINDER_TAG=binder_${TAG_NAME}
+          echo "AUTODOC_BINDER_ENV_GH_REPO_NAME=airbus/scikit-decide" >> $GITHUB_ENV
+          echo "AUTODOC_BINDER_ENV_GH_BRANCH=${BINDER_TAG}" >> $GITHUB_ENV
+          echo "AUTODOC_NOTEBOOKS_REPO_URL=${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}" >> $GITHUB_ENV
+          echo "AUTODOC_NOTEBOOKS_BRANCH=${TAG_NAME}" >> $GITHUB_ENV
 
       - name: read binder env
         run: |
@@ -50,17 +63,3 @@ jobs:
           echo ${AUTODOC_BINDER_ENV_GH_BRANCH}
           echo ${AUTODOC_NOTEBOOKS_REPO_URL}
           echo ${AUTODOC_NOTEBOOKS_BRANCH}
-
-      # Runs a single command using the runners shell
-      - name: Run a one-line script
-        run: echo  ${{ github.ref }}
-
-      # Runs a set of commands using the runners shell
-      - name: Run a multi-line script
-        run: |
-          echo Add other actions to build,
-          echo test, and deploy your project.
-      - name: deploy
-        if: ${{ github.ref == 'refs/heads/main' }}
-        run: echo deploy
-
diff --git a/another b/another
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diff --git a/anotherone b/anotherone
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diff --git a/ko b/ko
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diff --git a/newfile b/newfile
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diff --git a/yo b/yo
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diff --git a/yoyo b/yoyo
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