diff --git a/.github/workflows/benchmarks-last-release.yml b/.github/workflows/benchmarks-last-release.yml
index 9bd0cc13b3d..1df14dcc50c 100644
--- a/.github/workflows/benchmarks-last-release.yml
+++ b/.github/workflows/benchmarks-last-release.yml
@@ -24,6 +24,7 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: '2.0.2-2'
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           cache-environment: true
diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index bd06fbcde15..9daf042bd5e 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -27,6 +27,7 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: '2.0.2-2'
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           cache-environment: true
diff --git a/.github/workflows/ci-additional.yaml b/.github/workflows/ci-additional.yaml
index 4f8c9be586f..d4a0141a673 100644
--- a/.github/workflows/ci-additional.yaml
+++ b/.github/workflows/ci-additional.yaml
@@ -14,6 +14,7 @@ concurrency:
 
 env:
   FORCE_COLOR: 3
+  MICROMAMBA_VERSION: "2.0.2-2"
 
 jobs:
   detect-ci-trigger:
@@ -57,11 +58,11 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           create-args: >-
             python=${{env.PYTHON_VERSION}}
-            conda
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
 
@@ -70,8 +71,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Run doctests
         run: |
@@ -105,11 +104,11 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           create-args: >-
             python=${{env.PYTHON_VERSION}}
-            conda
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
       - name: Install xarray
@@ -117,8 +116,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Install mypy
         run: |
@@ -159,11 +156,11 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           create-args: >-
             python=${{env.PYTHON_VERSION}}
-            conda
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
       - name: Install xarray
@@ -171,8 +168,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Install mypy
         run: |
@@ -218,11 +213,11 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           create-args: >-
             python=${{env.PYTHON_VERSION}}
-            conda
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
       - name: Install xarray
@@ -230,8 +225,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Install pyright
         run: |
@@ -277,11 +270,11 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           create-args: >-
             python=${{env.PYTHON_VERSION}}
-            conda
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
       - name: Install xarray
@@ -289,8 +282,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Install pyright
         run: |
@@ -313,7 +304,8 @@ jobs:
     name: Minimum Version Policy
     runs-on: "ubuntu-latest"
     needs: detect-ci-trigger
-    if: needs.detect-ci-trigger.outputs.triggered == 'false'
+    # disabled until `conda` is compatible with the new `libmambapy`
+    if: false && needs.detect-ci-trigger.outputs.triggered == 'false'
     defaults:
       run:
         shell: bash -l {0}
@@ -326,12 +318,13 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-name: xarray-tests
           create-args: >-
             python=3.12
             pyyaml
-            conda
             python-dateutil
+            libmambapy
 
       - name: All-deps minimum versions policy
         run: |
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e0f9489e325..1a08b4c5903 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -14,6 +14,7 @@ concurrency:
 
 env:
   FORCE_COLOR: 3
+  micromamba_version: 2
 
 jobs:
   detect-ci-trigger:
@@ -110,13 +111,13 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: '2.0.2-2'
           environment-file: ${{ env.CONDA_ENV_FILE }}
           environment-name: xarray-tests
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{matrix.python-version}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
           create-args: >-
             python=${{matrix.python-version}}
-            conda
 
       # We only want to install this on one run, because otherwise we'll have
       # duplicate annotations.
@@ -131,8 +132,6 @@ jobs:
 
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
 
       - name: Import xarray
diff --git a/.github/workflows/hypothesis.yaml b/.github/workflows/hypothesis.yaml
index aa58eb32ef0..b90c2f26634 100644
--- a/.github/workflows/hypothesis.yaml
+++ b/.github/workflows/hypothesis.yaml
@@ -63,6 +63,7 @@ jobs:
       - name: Setup micromamba
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: "2.0.2-2"
           environment-file: ci/requirements/environment.yml
           environment-name: xarray-tests
           create-args: >-
@@ -76,8 +77,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
 
       # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
diff --git a/.github/workflows/upstream-dev-ci.yaml b/.github/workflows/upstream-dev-ci.yaml
index 873e3d16157..1d2aebab930 100644
--- a/.github/workflows/upstream-dev-ci.yaml
+++ b/.github/workflows/upstream-dev-ci.yaml
@@ -17,6 +17,7 @@ concurrency:
 
 env:
   FORCE_COLOR: 3
+  MICROMAMBA_VERSION: "2.0.2-2"
 
 jobs:
   detect-ci-trigger:
@@ -63,12 +64,12 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ci/requirements/environment.yml
           environment-name: xarray-tests
           create-args: >-
             python=${{ matrix.python-version }}
             pytest-reportlog
-            conda
       - name: Install upstream versions
         run: |
           bash ci/install-upstream-wheels.sh
@@ -77,8 +78,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Import xarray
         run: |
@@ -122,12 +121,12 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: ${{env.MICROMAMBA_VERSION}}
           environment-file: ci/requirements/environment.yml
           environment-name: xarray-tests
           create-args: >-
             python=${{ matrix.python-version }}
             pytest-reportlog
-            conda
       - name: Install upstream versions
         run: |
           bash ci/install-upstream-wheels.sh
@@ -136,8 +135,6 @@ jobs:
           python -m pip install --no-deps -e .
       - name: Version info
         run: |
-          conda info -a
-          conda list
           python xarray/util/print_versions.py
       - name: Install mypy
         run: |
diff --git a/ci/min_deps_check.py b/ci/min_deps_check.py
index 8e09bb1eb90..4106470699e 100755
--- a/ci/min_deps_check.py
+++ b/ci/min_deps_check.py
@@ -11,7 +11,7 @@
 from collections.abc import Iterator
 from datetime import datetime
 
-import conda.api  # type: ignore[import]
+import libmambapy  # type: ignore[import]
 import yaml
 from dateutil.relativedelta import relativedelta
 
@@ -93,7 +93,7 @@ def metadata(entry):
 
         return (major, minor), time
 
-    raw_data = conda.api.SubdirData.query_all(pkg, channels=CHANNELS)
+    raw_data = libmambapy.SubdirData.query_all(pkg, channels=CHANNELS)
     data = sorted(metadata(entry) for entry in raw_data if entry.timestamp != 0)
 
     release_dates = {