Moves HTTP/3 outside the experimental section

docs/content/migration/v2-to-v3.md

@@ -50,3 +50,8 @@ and should be explicitly combined using logical operators to mimic previous beha
 
 In v3, the `Content-Type` header is not auto-detected anymore when it is not set by the backend.
 One should use the `ContentType` middleware to enable the `Content-Type` header value auto-detection.
+
+## HTTP/3
+
+In v3, HTTP/3 is no longer an experimental feature.
+The `experimental.http3` option has been removed from the static configuration.

docs/content/reference/static-configuration/cli-ref.md

@@ -189,9 +189,6 @@ WriteTimeout is the maximum duration before timing out writes of the response. I
 `--entrypoints.<name>.udp.timeout`:  
 Timeout defines how long to wait on an idle session before releasing the related resources. (Default: ```3```)
 
-`--experimental.http3`:  
-Enable HTTP3. (Default: ```false```)
-
 `--experimental.hub`:  
 Enable the Traefik Hub provider. (Default: ```false```)
 

docs/content/reference/static-configuration/env-ref.md

@@ -189,9 +189,6 @@ WriteTimeout is the maximum duration before timing out writes of the response. I
 `TRAEFIK_ENTRYPOINTS_<NAME>_UDP_TIMEOUT`:  
 Timeout defines how long to wait on an idle session before releasing the related resources. (Default: ```3```)
 
-`TRAEFIK_EXPERIMENTAL_HTTP3`:  
-Enable HTTP3. (Default: ```false```)
-
 `TRAEFIK_EXPERIMENTAL_HUB`:  
 Enable the Traefik Hub provider. (Default: ```false```)
 

docs/content/reference/static-configuration/file.toml

@@ -461,7 +461,6 @@
 
 [experimental]
   kubernetesGateway = true
-  http3 = true
   hub = true
   [experimental.plugins]
     [experimental.plugins.Descriptor0]

docs/content/reference/static-configuration/file.yaml

@@ -489,7 +489,6 @@ hub:
     key: foobar
 experimental:
   kubernetesGateway: true
-  http3: true
   hub: true
   plugins:
     Descriptor0:

docs/content/routing/entrypoints.md

@@ -312,40 +312,33 @@ entryPoints:
 #### `http3`
 
 `http3` enables HTTP/3 protocol on the entryPoint.
-HTTP/3 requires a TCP entryPoint, as HTTP/3 always starts as a TCP connection that then gets upgraded to UDP.
-In most scenarios, this entryPoint is the same as the one used for TLS traffic.
-
-??? info "HTTP/3 uses UDP+TLS"
-
-    As HTTP/3 uses UDP, you can't have a TCP entryPoint with HTTP/3 on the same port as a UDP entryPoint.
-    Since HTTP/3 requires the use of TLS, only routers with TLS enabled will be usable with HTTP/3.
-
-!!! warning "Enabling Experimental HTTP/3"
-
-    As the HTTP/3 spec is still in draft, HTTP/3 support in Traefik is an experimental feature and needs to be activated 
-    in the experimental section of the static configuration.
+HTTP/3 requires a TCP entryPoint,
+as HTTP/3 always starts as a TCP connection that then gets upgraded to UDP.
+In most scenarios,
+this entryPoint is the same as the one used for TLS traffic.
 
 ```yaml tab="File (YAML)"
-    experimental:
-      http3: true
-
 entryPoints:
   name:
   http3: {}
 ```
 
 ```toml tab="File (TOML)"
-    [experimental]
-      http3 = true
-    
 [entryPoints.name.http3]
 ```
 
 ```bash tab="CLI"
-    --experimental.http3=true 
 --entrypoints.name.http3
 ```
 
+??? info "HTTP/3 uses UDP+TLS"
+
+    As HTTP/3 actually uses UDP, when traefik is configured with a TCP entryPoint on port N with HTTP/3 enabled,
+    the underlying HTTP/3 server that is started automatically listens on UDP port N too. As a consequence,
+    it means port N cannot be used by another UDP entryPoint.
+    Since HTTP/3 requires the use of TLS,
+    only routers with TLS enabled will be usable with HTTP/3.
+
 #### `advertisedPort`
 
 `http3.advertisedPort` defines which UDP port to advertise as the HTTP/3 authority.
@@ -355,9 +348,6 @@ It can be used to override the authority in the `alt-svc` header, for example if
 !!! info "http3.advertisedPort"
 
     ```yaml tab="File (YAML)"
-    experimental:
-      http3: true
-
     entryPoints:
       name:
         http3:
@@ -365,15 +355,11 @@ It can be used to override the authority in the `alt-svc` header, for example if
     ```
 
     ```toml tab="File (TOML)"
-    [experimental]
-      http3 = true
-    
     [entryPoints.name.http3]
       advertisedPort = 443
     ```
     
     ```bash tab="CLI"
-    --experimental.http3=true 
     --entrypoints.name.http3.advertisedport=443
     ```
 

pkg/config/static/experimental.go

@@ -8,6 +8,5 @@ type Experimental struct {
 	LocalPlugins map[string]plugins.LocalDescriptor `description:"Local plugins configuration." json:"localPlugins,omitempty" toml:"localPlugins,omitempty" yaml:"localPlugins,omitempty" export:"true"`
 
 	KubernetesGateway bool `description:"Allow the Kubernetes gateway api provider usage." json:"kubernetesGateway,omitempty" toml:"kubernetesGateway,omitempty" yaml:"kubernetesGateway,omitempty" export:"true"`
-	HTTP3             bool `description:"Enable HTTP3." json:"http3,omitempty" toml:"http3,omitempty" yaml:"http3,omitempty" export:"true"`
 	Hub               bool `description:"Enable the Traefik Hub provider." json:"hub,omitempty" toml:"hub,omitempty" yaml:"hub,omitempty" export:"true"`
 }

pkg/config/static/static_config.go

@@ -268,16 +268,6 @@ func (c *Configuration) SetEffectiveConfiguration() {
 		c.Providers.KubernetesGateway = nil
 	}
 
-	if c.Experimental == nil || !c.Experimental.HTTP3 {
-		for epName, ep := range c.EntryPoints {
-			if ep.HTTP3 != nil {
-				ep.HTTP3 = nil
-				log.Debug().Str(logs.EntryPointName, epName).
-					Msgf("Disabling HTTP3 configuration for entryPoint %q: HTTP3 is disabled in the experimental configuration section", epName)
-			}
-		}
-	}
-
 	// Configure Gateway API provider
 	if c.Providers.KubernetesGateway != nil {
 		log.Debug().Msg("Experimental Kubernetes Gateway provider has been activated")