diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d24e5a4276a..00a192e9446 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -86,7 +86,7 @@ jobs:
         cp coverage.txt $TEST_RESULTS
         cp coverage.html $TEST_RESULTS
     - name: Upload coverage report
-      uses: codecov/codecov-action@v5.0.2
+      uses: codecov/codecov-action@v5.0.7
       with:
         fail_ci_if_error: true
         files: ./coverage.txt
diff --git a/.gitignore b/.gitignore
index 9eb2e347269..e8ce6d8cc7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,5 @@ instrumentation/google.golang.org/grpc/otelgrpc/example/server/server
 instrumentation/google.golang.org/grpc/otelgrpc/example/client/client
 
 instrgen/driver/testdata/**/*.go_pass_*
+
+tmp
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c09ad39d7c..15da7553d70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Fixed
 
 - Fixed the value for configuring the OTLP exporter to use `grpc` instead of `grpc/protobuf` in `go.opentelemetry.io/contrib/config`. (#6338)
+- Allow marshaling types in `go.opentelemetry.io/contrib/config`. (#6347)
 
 <!-- Released section -->
 <!-- Don't change this section unless doing release -->
diff --git a/config/generated_config.go b/config/generated_config.go
index fbf69c3927e..8fe7310e9de 100644
--- a/config/generated_config.go
+++ b/config/generated_config.go
@@ -11,7 +11,7 @@ type AttributeLimits struct {
 	// "attribute_value_length_limit".
 	AttributeValueLengthLimit *int `json:"attribute_value_length_limit,omitempty" yaml:"attribute_value_length_limit,omitempty" mapstructure:"attribute_value_length_limit,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type AttributeNameValue struct {
@@ -186,7 +186,7 @@ type LogRecordExporter struct {
 	// OTLP corresponds to the JSON schema field "otlp".
 	OTLP *OTLP `json:"otlp,omitempty" yaml:"otlp,omitempty" mapstructure:"otlp,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type LogRecordLimits struct {
@@ -206,7 +206,7 @@ type LogRecordProcessor struct {
 	// Simple corresponds to the JSON schema field "simple".
 	Simple *SimpleLogRecordProcessor `json:"simple,omitempty" yaml:"simple,omitempty" mapstructure:"simple,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type LoggerProvider struct {
@@ -229,7 +229,7 @@ type MetricProducer struct {
 	// Opencensus corresponds to the JSON schema field "opencensus".
 	Opencensus MetricProducerOpencensus `json:"opencensus,omitempty" yaml:"opencensus,omitempty" mapstructure:"opencensus,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type MetricProducerOpencensus map[string]interface{}
@@ -358,7 +358,7 @@ type OpenTelemetryConfiguration struct {
 	// TracerProvider corresponds to the JSON schema field "tracer_provider".
 	TracerProvider *TracerProvider `json:"tracer_provider,omitempty" yaml:"tracer_provider,omitempty" mapstructure:"tracer_provider,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type PeriodicMetricReader struct {
@@ -397,14 +397,14 @@ type Propagator struct {
 	// Composite corresponds to the JSON schema field "composite".
 	Composite []*string `json:"composite,omitempty" yaml:"composite,omitempty" mapstructure:"composite,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type PullMetricExporter struct {
 	// Prometheus corresponds to the JSON schema field "prometheus".
 	Prometheus *Prometheus `json:"prometheus,omitempty" yaml:"prometheus,omitempty" mapstructure:"prometheus,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type PullMetricReader struct {
@@ -419,7 +419,7 @@ type PushMetricExporter struct {
 	// OTLP corresponds to the JSON schema field "otlp".
 	OTLP *OTLPMetric `json:"otlp,omitempty" yaml:"otlp,omitempty" mapstructure:"otlp,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type Resource struct {
@@ -452,7 +452,7 @@ type Sampler struct {
 	// TraceIDRatioBased corresponds to the JSON schema field "trace_id_ratio_based".
 	TraceIDRatioBased *SamplerTraceIDRatioBased `json:"trace_id_ratio_based,omitempty" yaml:"trace_id_ratio_based,omitempty" mapstructure:"trace_id_ratio_based,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type SamplerAlwaysOff map[string]interface{}
@@ -515,7 +515,7 @@ type SpanExporter struct {
 	// Zipkin corresponds to the JSON schema field "zipkin".
 	Zipkin *Zipkin `json:"zipkin,omitempty" yaml:"zipkin,omitempty" mapstructure:"zipkin,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type SpanLimits struct {
@@ -549,7 +549,7 @@ type SpanProcessor struct {
 	// Simple corresponds to the JSON schema field "simple".
 	Simple *SimpleSpanProcessor `json:"simple,omitempty" yaml:"simple,omitempty" mapstructure:"simple,omitempty"`
 
-	AdditionalProperties interface{}
+	AdditionalProperties interface{} `mapstructure:",remain"`
 }
 
 type TracerProvider struct {
diff --git a/detectors/aws/eks/go.mod b/detectors/aws/eks/go.mod
index 7be61e5b0ce..6c4443a0dd7 100644
--- a/detectors/aws/eks/go.mod
+++ b/detectors/aws/eks/go.mod
@@ -6,8 +6,8 @@ require (
 	github.com/stretchr/testify v1.9.0
 	go.opentelemetry.io/otel v1.32.0
 	go.opentelemetry.io/otel/sdk v1.32.0
-	k8s.io/apimachinery v0.31.2
-	k8s.io/client-go v0.31.2
+	k8s.io/apimachinery v0.31.3
+	k8s.io/client-go v0.31.3
 )
 
 require (
@@ -45,7 +45,7 @@ require (
 	google.golang.org/protobuf v1.35.2 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/api v0.31.2 // indirect
+	k8s.io/api v0.31.3 // indirect
 	k8s.io/klog/v2 v2.130.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20241009091222-67ed5848f094 // indirect
 	k8s.io/utils v0.0.0-20241104163129-6fe5fd82f078 // indirect
diff --git a/detectors/aws/eks/go.sum b/detectors/aws/eks/go.sum
index a45b19b53e9..fb2b616cc84 100644
--- a/detectors/aws/eks/go.sum
+++ b/detectors/aws/eks/go.sum
@@ -131,12 +131,12 @@ gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-k8s.io/api v0.31.2 h1:3wLBbL5Uom/8Zy98GRPXpJ254nEFpl+hwndmk9RwmL0=
-k8s.io/api v0.31.2/go.mod h1:bWmGvrGPssSK1ljmLzd3pwCQ9MgoTsRCuK35u6SygUk=
-k8s.io/apimachinery v0.31.2 h1:i4vUt2hPK56W6mlT7Ry+AO8eEsyxMD1U44NR22CLTYw=
-k8s.io/apimachinery v0.31.2/go.mod h1:rsPdaZJfTfLsNJSQzNHQvYoTmxhoOEofxtOsF3rtsMo=
-k8s.io/client-go v0.31.2 h1:Y2F4dxU5d3AQj+ybwSMqQnpZH9F30//1ObxOKlTI9yc=
-k8s.io/client-go v0.31.2/go.mod h1:NPa74jSVR/+eez2dFsEIHNa+3o09vtNaWwWwb1qSxSs=
+k8s.io/api v0.31.3 h1:umzm5o8lFbdN/hIXbrK9oRpOproJO62CV1zqxXrLgk8=
+k8s.io/api v0.31.3/go.mod h1:UJrkIp9pnMOI9K2nlL6vwpxRzzEX5sWgn8kGQe92kCE=
+k8s.io/apimachinery v0.31.3 h1:6l0WhcYgasZ/wk9ktLq5vLaoXJJr5ts6lkaQzgeYPq4=
+k8s.io/apimachinery v0.31.3/go.mod h1:rsPdaZJfTfLsNJSQzNHQvYoTmxhoOEofxtOsF3rtsMo=
+k8s.io/client-go v0.31.3 h1:CAlZuM+PH2cm+86LOBemaJI/lQ5linJ6UFxKX/SoG+4=
+k8s.io/client-go v0.31.3/go.mod h1:2CgjPUTpv3fE5dNygAr2NcM8nhHzXvxB8KL5gYc3kJs=
 k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=
 k8s.io/klog/v2 v2.130.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
 k8s.io/kube-openapi v0.0.0-20241009091222-67ed5848f094 h1:MErs8YA0abvOqJ8gIupA1Tz6PKXYUw34XsGlA7uSL1k=
diff --git a/examples/otel-collector/docker-compose.yaml b/examples/otel-collector/docker-compose.yaml
index f65711940ac..d992aa81a75 100644
--- a/examples/otel-collector/docker-compose.yaml
+++ b/examples/otel-collector/docker-compose.yaml
@@ -3,7 +3,7 @@
 
 services:
   otel-collector:
-    image: otel/opentelemetry-collector-contrib:0.113.0
+    image: otel/opentelemetry-collector-contrib:0.114.0
     command: ["--config=/etc/otel-collector.yaml"]
     volumes:
       - ./otel-collector.yaml:/etc/otel-collector.yaml
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.mod b/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.mod
index 62f9f70e4f7..ac376495d46 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.mod
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.mod
@@ -21,7 +21,7 @@ require (
 	github.com/bytedance/sonic/loader v0.2.1 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.6 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.7 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.sum b/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.sum
index 59ef1932ff5..e4aaa609e01 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.sum
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/example/go.sum
@@ -10,8 +10,8 @@ github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQ
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gabriel-vasile/mimetype v1.4.6 h1:3+PzJTKLkvgjeTbts6msPJt4DixhT4YtFNf1gtGe3zc=
-github.com/gabriel-vasile/mimetype v1.4.6/go.mod h1:JX1qVKqZd40hUPpAfiNTe0Sne7hdfKSbOqqmkq8GCXc=
+github.com/gabriel-vasile/mimetype v1.4.7 h1:SKFKl7kD0RiPdbht0s7hFtjl489WcQ1VyPW8ZzUMYCA=
+github.com/gabriel-vasile/mimetype v1.4.7/go.mod h1:GDlAgAyIRT27BhFl53XNAFtfjzOkLaF35JdEG0P7LtU=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/go.mod b/instrumentation/github.com/gin-gonic/gin/otelgin/go.mod
index 5dc945986e8..0d66379a99a 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/go.mod
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/go.mod
@@ -18,7 +18,7 @@ require (
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.6 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.7 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/go.sum b/instrumentation/github.com/gin-gonic/gin/otelgin/go.sum
index a5ebd2b401a..8615038e56a 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/go.sum
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/go.sum
@@ -10,8 +10,8 @@ github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQ
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gabriel-vasile/mimetype v1.4.6 h1:3+PzJTKLkvgjeTbts6msPJt4DixhT4YtFNf1gtGe3zc=
-github.com/gabriel-vasile/mimetype v1.4.6/go.mod h1:JX1qVKqZd40hUPpAfiNTe0Sne7hdfKSbOqqmkq8GCXc=
+github.com/gabriel-vasile/mimetype v1.4.7 h1:SKFKl7kD0RiPdbht0s7hFtjl489WcQ1VyPW8ZzUMYCA=
+github.com/gabriel-vasile/mimetype v1.4.7/go.mod h1:GDlAgAyIRT27BhFl53XNAFtfjzOkLaF35JdEG0P7LtU=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.mod b/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.mod
index fa03fca516c..d5d7bf2b3cd 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.mod
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.6 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.7 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
diff --git a/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.sum b/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.sum
index 1c1696af496..a62af73763d 100644
--- a/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.sum
+++ b/instrumentation/github.com/gin-gonic/gin/otelgin/test/go.sum
@@ -10,8 +10,8 @@ github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQ
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gabriel-vasile/mimetype v1.4.6 h1:3+PzJTKLkvgjeTbts6msPJt4DixhT4YtFNf1gtGe3zc=
-github.com/gabriel-vasile/mimetype v1.4.6/go.mod h1:JX1qVKqZd40hUPpAfiNTe0Sne7hdfKSbOqqmkq8GCXc=
+github.com/gabriel-vasile/mimetype v1.4.7 h1:SKFKl7kD0RiPdbht0s7hFtjl489WcQ1VyPW8ZzUMYCA=
+github.com/gabriel-vasile/mimetype v1.4.7/go.mod h1:GDlAgAyIRT27BhFl53XNAFtfjzOkLaF35JdEG0P7LtU=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=