From c3a9510178e7043b7efe6d422492daacc371c891 Mon Sep 17 00:00:00 2001
From: Christoph Mewes <christoph@kubermatic.com>
Date: Wed, 8 Apr 2026 16:58:51 +0200
Subject: [PATCH 1/2] Update to Go 1.26.2

On-behalf-of: @SAP christoph.mewes@sap.com
---
 .github/workflows/docs-gen-and-push.yaml |  2 +-
 .github/workflows/release.yml            |  2 +-
 .prow.yaml                               | 12 ++++++------
 Dockerfile                               |  2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/docs-gen-and-push.yaml b/.github/workflows/docs-gen-and-push.yaml
index 5723a3b..6c10b59 100644
--- a/.github/workflows/docs-gen-and-push.yaml
+++ b/.github/workflows/docs-gen-and-push.yaml
@@ -36,7 +36,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # tag=v6.1.0
         with:
-          go-version: v1.25.7
+          go-version: v1.26.2
           cache: true
 
       - uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 #tag=v6.1.0
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bc3095b..803ee36 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # tag=v6.1.0
         with:
-          go-version: v1.25.7
+          go-version: v1.26.2
           cache: true
 
       - name: Delete non-semver tags
diff --git a/.prow.yaml b/.prow.yaml
index ba8b1dd..3ede8e1 100644
--- a/.prow.yaml
+++ b/.prow.yaml
@@ -21,7 +21,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - hack/ci/verify.sh
           resources:
@@ -37,7 +37,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - make
             - lint
@@ -76,7 +76,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - make
             - test
@@ -96,7 +96,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - hack/ci/run-e2e-tests.sh
           env:
@@ -115,7 +115,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - hack/ci/run-e2e-tests.sh
           env:
@@ -134,7 +134,7 @@ presubmits:
       preset-goproxy: "true"
     spec:
       containers:
-        - image: ghcr.io/kcp-dev/infra/build:1.25.7-1
+        - image: ghcr.io/kcp-dev/infra/build:1.26.2-1
           command:
             - hack/ci/run-e2e-tests.sh
           env:
diff --git a/Dockerfile b/Dockerfile
index 6cc8398..0f2f9e3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM --platform=${BUILDPLATFORM} docker.io/golang:1.25.7 AS builder
+FROM --platform=${BUILDPLATFORM} docker.io/golang:1.26.2 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 

From 41e66874d721b873157ccb7fc5cf9fa8cbe93e0e Mon Sep 17 00:00:00 2001
From: Christoph Mewes <christoph@kubermatic.com>
Date: Wed, 8 Apr 2026 17:07:21 +0200
Subject: [PATCH 2/2] bump golangci-lint for Go 1.26 compat

On-behalf-of: @SAP christoph.mewes@sap.com
---
 Makefile             | 2 +-
 hack/tools.checksums | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index bf0ccf9..e64a28e 100644
--- a/Makefile
+++ b/Makefile
@@ -109,7 +109,7 @@ verify:
 BOILERPLATE_VERSION ?= 0.3.0
 GIMPS_VERSION ?= 0.6.3
 GOIMPORTS_VERSION ?= c70783e636f2213cac683f6865d88c5edace3157
-GOLANGCI_LINT_VERSION ?= 2.8.0
+GOLANGCI_LINT_VERSION ?= 2.11.4
 KUBECTL_VERSION ?= v1.34.2
 WWHRD_VERSION ?= 06b99400ca6db678386ba5dc39bbbdcdadb664ff
 YQ_VERSION ?= 4.44.6
diff --git a/hack/tools.checksums b/hack/tools.checksums
index 05bc46f..bdf28bf 100644
--- a/hack/tools.checksums
+++ b/hack/tools.checksums
@@ -2,8 +2,8 @@ boilerplate|GOARCH=amd64;GOOS=linux|6f05fc3be207ae2ed99e125509a08df677cb007e197e
 boilerplate|GOARCH=arm64;GOOS=linux|70253486ed7a803a35a9abb2bab4db2f1f7748d5266bf7a1c2ee298fda2b208a
 gimps|GOARCH=amd64;GOOS=linux|b597efc7e2c72097a44c001b41a06ccca97610963e1f1aec74c3d99c0e0b6c11
 gimps|GOARCH=arm64;GOOS=linux|2588daec997b4f4b3a8d8875f780fd6faf3c39c933519e7899e19a686476c8e4
-golangci-lint|GOARCH=amd64;GOOS=linux|66e6c179d96833f21300382d259cd5f215f0ea707246f38b144b2dcd329a217b
-golangci-lint|GOARCH=arm64;GOOS=linux|6eba56b081496ccaf343eaf701287b12ed1916aea1c730f3574159d6b04019c8
+golangci-lint|GOARCH=amd64;GOOS=linux|51ba72102857e609d290863239d73bf4210be016248fe503a516529a71bc2aad
+golangci-lint|GOARCH=arm64;GOOS=linux|a90423744a720229035722c2f01fc59e144d223e5c5b2d4ed9113a43613dd2b9
 kubectl|GOARCH=amd64;GOOS=linux|9591f3d75e1581f3f7392e6ad119aab2f28ae7d6c6e083dc5d22469667f27253
 kubectl|GOARCH=arm64;GOOS=linux|95df604e914941f3172a93fa8feeb1a1a50f4011dfbe0c01e01b660afc8f9b85
 yq|GOARCH=amd64;GOOS=linux|0c2b24e645b57d8e7c0566d18643a6d4f5580feeea3878127354a46f2a1e4598