diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 9ed08c6f..99cb9ad4 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.10', '3.12']
+        python-version: ['3.8', '3.10', '3.12', '3.14']
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v6
@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.10', '3.12']
+        python-version: ['3.8', '3.10', '3.12', '3.14']
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v6
@@ -139,6 +139,7 @@ jobs:
           - "tox -e func -- -v --base ubuntu@20.04 --keep-models"
           - "tox -e func -- -v --base ubuntu@22.04 --keep-models"
           - "tox -e func -- -v --base ubuntu@24.04 --keep-models"
+          - "tox -e func -- -v --base ubuntu@26.04 --keep-models"
     steps:
       - uses: actions/checkout@v6
         with:
@@ -190,6 +191,8 @@ jobs:
           # It is designed to work both with charms that output one file per base,
           # and charms that output a single file to run on all bases.
           # Not all charms will use them, and for some charms the variables will resolve to the same file.
+          export CHARM_PATH_RESOLUTE="$(pwd)/$(ls | grep '.*26.04.*\.charm$')"
+          echo "$CHARM_PATH_RESOLUTE"
           export CHARM_PATH_NOBLE="$(pwd)/$(ls | grep '.*24.04.*\.charm$')"
           echo "$CHARM_PATH_NOBLE"
           export CHARM_PATH_JAMMY="$(pwd)/$(ls | grep '.*22.04.*\.charm$')"
diff --git a/charmcraft.yaml b/charmcraft.yaml
index 87967460..aec523e6 100644
--- a/charmcraft.yaml
+++ b/charmcraft.yaml
@@ -22,15 +22,19 @@ platforms:
   ubuntu@20.04:amd64:
   ubuntu@22.04:amd64:
   ubuntu@24.04:amd64:
+  ubuntu@26.04:amd64:
   ubuntu@20.04:arm64:
   ubuntu@22.04:arm64:
   ubuntu@24.04:arm64:
+  ubuntu@26.04:arm64:
   ubuntu@20.04:s390x:
   ubuntu@22.04:s390x:
   ubuntu@24.04:s390x:
+  ubuntu@26.04:s390x:
   ubuntu@20.04:ppc64el:
   ubuntu@22.04:ppc64el:
   ubuntu@24.04:ppc64el:
+  ubuntu@26.04:ppc64el:
 
 actions:
   redetect-hardware:
diff --git a/tests/functional/bundle.yaml.j2 b/tests/functional/bundle.yaml.j2
index 33debf7d..297a42fc 100644
--- a/tests/functional/bundle.yaml.j2
+++ b/tests/functional/bundle.yaml.j2
@@ -12,11 +12,12 @@ applications:
 {% if base == "ubuntu@20.04" %}
   grafana-agent:
     charm: grafana-agent
+    channel: 2/stable
 {% else %}
   opentelemetry-collector:
     charm: opentelemetry-collector
+    channel: 0.130/stable
 {% endif %}
-    channel: 2/stable
   hardware-observer:
     charm: {{ charm }}
     options:
diff --git a/tests/functional/conftest.py b/tests/functional/conftest.py
index b0b6d5e7..b0211f99 100644
--- a/tests/functional/conftest.py
+++ b/tests/functional/conftest.py
@@ -22,7 +22,7 @@ def pytest_addoption(parser):
         "--base",
         type=str.lower,
         default="ubuntu@22.04",
-        choices=["ubuntu@20.04", "ubuntu@22.04", "ubuntu@24.04"],
+        choices=["ubuntu@20.04", "ubuntu@22.04", "ubuntu@24.04", "ubuntu@26.04"],
         help="Set base for the applications.",
     )
 
diff --git a/tests/manual/etc/4_deploy_grafana_agent/main.tf b/tests/manual/etc/4_deploy_grafana_agent/main.tf
index 97339b0c..d74d2638 100644
--- a/tests/manual/etc/4_deploy_grafana_agent/main.tf
+++ b/tests/manual/etc/4_deploy_grafana_agent/main.tf
@@ -13,7 +13,7 @@ module "opentelemetry-collector" {
   source = "git::https://github.com/canonical/snap-openstack.git//sunbeam-python/sunbeam/features/observability/etc/deploy-grafana-agent?ref=fa2e56ce687c046b4c931512564787eac419e3ab"
 
   opentelemetry-collector-base     = var.opentelemetry_collector_base
-  opentelemetry-collector-channel  = "2/stable"
+  opentelemetry-collector-channel  = "0.130/stable"
   principal-application-model-uuid = var.machine_model_uuid
   receive-remote-write-offer-url   = var.receive-remote-write-offer-url
   grafana-dashboard-offer-url      = var.grafana-dashboard-offer-url