chore: bump Go version to 1.26

.devcontainer/devcontainer.json

@@ -2,7 +2,7 @@
 // README at: https://github.com/devcontainers/templates/tree/main/src/go
 {
 	"name": "Go",
-	"image": "mcr.microsoft.com/devcontainers/go:1.25-trixie",
+	"image": "mcr.microsoft.com/devcontainers/go:1.26-trixie",
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},

AI.md

@@ -14,15 +14,15 @@ This is a **Go monorepo** containing:
 ## Environment Setup
 
 ### Go Version
-- **Required**: Go 1.25.9
+- **Required**: Go 1.26
 - **Tool**: Use [gvm](https://github.com/andrewkroh/gvm) for version management
 - **CRITICAL**: Always run this before ANY Go command:
   ```bash
   # For Apple Silicon (M1/M2/M3)
-  eval "$(gvm 1.25.9 --arch=arm64)"
+  eval "$(gvm 1.26 --arch=arm64)"
 
   # For Intel/AMD (x86_64)
-  eval "$(gvm 1.25.9 --arch=amd64)"
+  eval "$(gvm 1.26 --arch=amd64)"
   ```
 
 ### Project Structure
@@ -171,14 +171,14 @@ func Run(ctx context.Context, img string, opts ...testcontainers.ContainerCustom
 ### When Tests Fail
 1. **Read the error message carefully** - it usually tells you exactly what's wrong
 2. **Check if it's a lint issue** - run `make pre-commit` first
-3. **Verify Go version** - ensure using Go 1.25.9
+3. **Verify Go version** - ensure using Go 1.26
 4. **Check Docker** - some tests require Docker daemon running
 
 ## Common Pitfalls to Avoid
 
 ### Code Issues
 - ❌ Using interface types as return values
-- ❌ Forgetting to run `eval "$(gvm 1.25.9 --arch=arm64)"`
+- ❌ Forgetting to run `eval "$(gvm 1.26 --arch=arm64)"`
 - ❌ Not handling errors from built-in options
 - ❌ Using module-specific container names (`PostgresContainer`)
 - ❌ Calling `.Customize()` method instead of direct function call

docker_mounts.go

@@ -173,7 +173,7 @@ func mapToDockerMounts(containerMounts ContainerMounts) []mount.Mount {
 		case ImageMounter:
 			containerMount.ImageOptions = typedMounter.ImageOptions()
 		case BindMounter:
-			log.Printf("Mount type %s is not supported by Testcontainers for Go", m.Source.Type())
+			log.Printf("Mount type %d is not supported by Testcontainers for Go", m.Source.Type())
 		default:
 			// The provided source type has no custom options
 		}

docs/system_requirements/ci/aws_codebuild.md

@@ -11,7 +11,7 @@ version: 0.2
 phases:
   install:
     runtime-versions:
-      golang: 1.25
+      golang: 1.26
   build:
     commands:
       - go test ./...

docs/system_requirements/ci/circle_ci.md

@@ -57,7 +57,7 @@ workflows:
       - tests:
           matrix:
             parameters:
-              go-version: ["1.25.9", "1.26.2"]
+              go-version: ["1.26"]
 
 ```
 

docs/system_requirements/ci/concourse_ci.md

@@ -36,7 +36,7 @@ jobs:
             start_docker
 
             cd repo
-            docker run -it --rm -v "$PWD:$PWD" -w "$PWD" -v /var/run/docker.sock:/var/run/docker.sock golang:1.25 go test ./...
+            docker run -it --rm -v "$PWD:$PWD" -w "$PWD" -v /var/run/docker.sock:/var/run/docker.sock golang:1.26 go test ./...
 ```
 
 Finally, you can use Concourse's [fly CLI](https://concourse-ci.org/fly.html) to set the pipeline and trigger the job:

docs/system_requirements/ci/dind_patterns.md

@@ -24,7 +24,7 @@ $ tree .
 └── platform
     └── integration_test.go
 
-$ docker run -it --rm -v $PWD:$PWD -w $PWD -v /var/run/docker.sock:/var/run/docker.sock golang:1.25 go test ./... -v
+$ docker run -it --rm -v $PWD:$PWD -w $PWD -v /var/run/docker.sock:/var/run/docker.sock golang:1.26 go test ./... -v
 ```
 
 Where:
@@ -45,7 +45,7 @@ The same can be achieved with Docker Compose:
 
 ```yaml
 tests:
-  image: golang:1.25
+  image: golang:1.26
   stop_signal: SIGKILL
   stdin_open: true
   tty: true

docs/system_requirements/ci/gitlab_ci.md

@@ -57,7 +57,7 @@ variables:
   DOCKER_DRIVER: overlay2
 
 test:
- image: golang:1.25
+ image: golang:1.26
  stage: test
  script: go test ./... -v
 ```

docs/system_requirements/ci/tekton.md

@@ -16,7 +16,7 @@ spec:
     - name: source
   steps:
     - name: read
-      image: golang:1.25
+      image: golang:1.26
       workingDir: $(workspaces.source.path)
       script: go test ./... -v
       volumeMounts:

examples/nginx/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/examples/nginx
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/stretchr/testify v1.11.1

go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	dario.cat/mergo v1.0.2

modulegen/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modulegen
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/spf13/cobra v1.10.2

modules/activemq/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/activemq
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/stretchr/testify v1.11.1

modules/aerospike/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/aerospike
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/aerospike/aerospike-client-go/v8 v8.7.0

modules/arangodb/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/arangodb
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/arangodb/go-driver/v2 v2.3.1

modules/artemis/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/artemis
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/go-stomp/stomp/v3 v3.1.5

modules/azure/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/azure
 
-go 1.25.7
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.22.0

modules/azure/lowkeyvault/testdata/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine@sha256:8e02eb337d9e0ea459e041f1ee5eece41cbb61f1d83e7d883a3e2fb4862063fa as builder
+FROM golang:1.26-alpine@sha256:0178a641fbb4858c5f1b48e34bdaabe0350a330a1b1149aabd498d0699ff5fb2 as builder
 WORKDIR /app
 COPY . .
 RUN mkdir -p dist

modules/azure/lowkeyvault/testdata/go.mod

@@ -1,8 +1,6 @@
 module lowkeyvault_network_test
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.21.0

modules/azurite/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/azurite
 
-go 1.25.7
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/stretchr/testify v1.11.1

modules/azurite/go.sum

@@ -8,8 +8,8 @@ github.com/Azure/azure-sdk-for-go/sdk/data/aztables v1.3.0 h1:NnE8y/opvxowwNcSNH
 github.com/Azure/azure-sdk-for-go/sdk/data/aztables v1.3.0/go.mod h1:GhHzPHiiHxZloo6WvKu9X7krmSAKTyGoIwoKMbrKTTA=
 github.com/Azure/azure-sdk-for-go/sdk/internal v1.12.0 h1:fhqpLE3UEXi9lPaBRpQ6XuRW0nU7hgg4zlmZZa+a9q4=
 github.com/Azure/azure-sdk-for-go/sdk/internal v1.12.0/go.mod h1:7dCRMLwisfRH3dBupKeNCioWYUZ4SS09Z14H+7i8ZoY=
-github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.0 h1:UXT0o77lXQrikd1kgwIPQOUect7EoR/+sbP4wQKdzxM=
-github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.0/go.mod h1:cTvi54pg19DoT07ekoeMgE/taAwNtCShVeZqA+Iv2xI=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.8.0 h1:irsmOWwkp0KCTTNS5e2hdFeIvSQClQo2No3IaNmL3Vw=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.8.0/go.mod h1:GWcBkQj3MqN7ozHKLaCCAuNLiXoIGv2RtanfAwSjY/Y=
 github.com/Azure/azure-sdk-for-go/sdk/storage/azqueue v1.0.0 h1:lJwNFV+xYjHREUTHJKx/ZF6CJSt9znxmLw9DqSTvyRU=
 github.com/Azure/azure-sdk-for-go/sdk/storage/azqueue v1.0.0/go.mod h1:GfT0aGew8Qj5yiQVqOO5v7N8fanbJGyUoHqXg56qcVY=
 github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c h1:udKWzYgxTojEKWjV8V+WSxDXJ4NFATAsZjh8iIbsQIg=

modules/cassandra/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/cassandra
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/gocql/gocql v1.6.0

modules/chroma/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/chroma
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/amikos-tech/chroma-go v0.3.2

modules/clickhouse/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/clickhouse
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/ClickHouse/clickhouse-go/v2 v2.34.0

modules/cockroachdb/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/cockroachdb
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/jackc/pgx/v5 v5.9.2

modules/compose/go.mod

@@ -1,6 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/compose
 
-go 1.25.9
+go 1.26
 
 replace github.com/testcontainers/testcontainers-go => ../..
 

modules/consul/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/consul
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/hashicorp/consul/api v1.27.0

modules/couchbase/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/couchbase
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/cenkalti/backoff/v4 v4.3.0

modules/couchdb/go.mod

@@ -1,6 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/couchdb
 
-go 1.25.0
+go 1.26
 
 require (
 	github.com/stretchr/testify v1.11.1

modules/cratedb/go.mod

@@ -1,6 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/cratedb
 
-go 1.25.0
+go 1.26
 
 require (
 	github.com/stretchr/testify v1.11.1

modules/databend/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/databend
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/datafuselabs/databend-go v0.7.0

modules/dex/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dex
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/coreos/go-oidc/v3 v3.18.0

modules/dind/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dind
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/moby/moby/api v1.55.0

modules/dockermcpgateway/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dockermcpgateway
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/moby/moby/api v1.55.0

modules/dockermodelrunner/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dockermodelrunner
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/moby/moby/client v0.5.0

modules/dockermodelrunner/internal/sdk/client/pull.go

@@ -38,7 +38,7 @@ func (c *Client) PullModel(ctx context.Context, fullyQualifiedModelName string)
 	scanner := bufio.NewScanner(resp.Body)
 	// TODO: use a progressbar instead of multiple line output.
 	for scanner.Scan() {
-		logger.Printf(scanner.Text())
+		logger.Printf("%s", scanner.Text())
 	}
 
 	if err := scanner.Err(); err != nil {

modules/dolt/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dolt
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/go-sql-driver/mysql v1.7.1

modules/dynamodb/go.mod

@@ -1,8 +1,6 @@
 module github.com/testcontainers/testcontainers-go/modules/dynamodb
 
-go 1.25.0
-
-toolchain go1.25.9
+go 1.26
 
 require (
 	github.com/aws/aws-sdk-go-v2 v1.31.0