diff --git a/internal/tlcodegen/qt_meta.qtpl b/internal/tlcodegen/qt_meta.qtpl
index 1d6b8ac2..c5e5fdcb 100644
--- a/internal/tlcodegen/qt_meta.qtpl
+++ b/internal/tlcodegen/qt_meta.qtpl
@@ -1,6 +1,6 @@
 {%- import "fmt" -%}
 
-{%- func (gen *Gen2) generateMeta() -%}
+{%- func (gen *Gen2) generateMeta(tlgenVersion string) -%}
 {%s= HeaderComment %}
 {%- code typeWrappers := gen.generatedTypesList-%}
 package {%s MetaGoPackageName %}
@@ -12,6 +12,11 @@ import (
     "{%s= gen.options.TLPackageNameFull %}/internal"
 )
 
+func SchemaGenerator() string { return {%s= fmt.Sprintf("%#v", tlgenVersion) %} }
+func SchemaURL() string { return {%s= fmt.Sprintf("%#v", gen.options.SchemaURL) %} }
+func SchemaCommit() string { return {%s= fmt.Sprintf("%#v", gen.options.SchemaCommit) %} }
+func SchemaTimestamp() uint32 { return {%v gen.options.SchemaTimestamp %} }
+
 // We can create only types which have zero type arguments and zero nat arguments
 type Object interface {
 	TLName() string // returns type's TL name. For union, returns constructor name depending on actual union value
diff --git a/internal/tlcodegen/qt_meta.qtpl.go b/internal/tlcodegen/qt_meta.qtpl.go
index aa3b6025..65bce294 100644
--- a/internal/tlcodegen/qt_meta.qtpl.go
+++ b/internal/tlcodegen/qt_meta.qtpl.go
@@ -16,7 +16,7 @@ var (
 	_ = qt422016.AcquireByteBuffer
 )
 
-func (gen *Gen2) streamgenerateMeta(qw422016 *qt422016.Writer) {
+func (gen *Gen2) streamgenerateMeta(qw422016 *qt422016.Writer, tlgenVersion string) {
 	qw422016.N().S(HeaderComment)
 	qw422016.N().S(`
 `)
@@ -37,6 +37,19 @@ import (
 	qw422016.N().S(`/internal"
 )
 
+func SchemaGenerator() string { return `)
+	qw422016.N().S(fmt.Sprintf("%#v", tlgenVersion))
+	qw422016.N().S(` }
+func SchemaURL() string { return `)
+	qw422016.N().S(fmt.Sprintf("%#v", gen.options.SchemaURL))
+	qw422016.N().S(` }
+func SchemaCommit() string { return `)
+	qw422016.N().S(fmt.Sprintf("%#v", gen.options.SchemaCommit))
+	qw422016.N().S(` }
+func SchemaTimestamp() uint32 { return `)
+	qw422016.E().V(gen.options.SchemaTimestamp)
+	qw422016.N().S(` }
+
 // We can create only types which have zero type arguments and zero nat arguments
 type Object interface {
 	TLName() string // returns type's TL name. For union, returns constructor name depending on actual union value
@@ -399,15 +412,15 @@ func init() {
 `)
 }
 
-func (gen *Gen2) writegenerateMeta(qq422016 qtio422016.Writer) {
+func (gen *Gen2) writegenerateMeta(qq422016 qtio422016.Writer, tlgenVersion string) {
 	qw422016 := qt422016.AcquireWriter(qq422016)
-	gen.streamgenerateMeta(qw422016)
+	gen.streamgenerateMeta(qw422016, tlgenVersion)
 	qt422016.ReleaseWriter(qw422016)
 }
 
-func (gen *Gen2) generateMeta() string {
+func (gen *Gen2) generateMeta(tlgenVersion string) string {
 	qb422016 := qt422016.AcquireByteBuffer()
-	gen.writegenerateMeta(qb422016)
+	gen.writegenerateMeta(qb422016, tlgenVersion)
 	qs422016 := string(qb422016.B)
 	qt422016.ReleaseByteBuffer(qb422016)
 	return qs422016
diff --git a/internal/tlcodegen/qt_namespace.qtpl b/internal/tlcodegen/qt_namespace.qtpl
index 472ac02f..cf8cc28e 100644
--- a/internal/tlcodegen/qt_namespace.qtpl
+++ b/internal/tlcodegen/qt_namespace.qtpl
@@ -122,7 +122,8 @@ func (c *Client) {%s= typeString %}(ctx context.Context, args {%s= typeString %}
     {%- endif -%}
     req.FunctionName = "{%s= tlName %}"
     if extra != nil {
-        req.Extra = *extra
+        req.Extra = extra.RequestExtra
+        req.FailIfNoConnection = extra.FailIfNoConnection
     }
     rpc.UpdateExtraTimeout(&req.Extra, c.Timeout)
     req.Body, err = args.WriteBoxedGeneral(req.Body)
@@ -130,6 +131,9 @@ func (c *Client) {%s= typeString %}(ctx context.Context, args {%s= typeString %}
         return internal.ErrorClientWrite("{%s= tlName %}", err)
     }
     resp, err := c.Client.Do(ctx, c.Network, c.Address, req)
+    if extra != nil && resp != nil {
+        extra.ResponseExtra = resp.Extra
+    }
     defer c.Client.PutResponse(resp)
     if err != nil {
         return internal.ErrorClientDo("{%s= tlName %}", c.Network, c.ActorID, c.Address, err)
diff --git a/internal/tlcodegen/qt_namespace.qtpl.go b/internal/tlcodegen/qt_namespace.qtpl.go
index 32d1e839..c80102d7 100644
--- a/internal/tlcodegen/qt_namespace.qtpl.go
+++ b/internal/tlcodegen/qt_namespace.qtpl.go
@@ -243,7 +243,8 @@ func streamwriteClientCode(qw422016 *qt422016.Writer, bytesVersion bool, shortPa
 	qw422016.N().S(tlName)
 	qw422016.N().S(`"
     if extra != nil {
-        req.Extra = *extra
+        req.Extra = extra.RequestExtra
+        req.FailIfNoConnection = extra.FailIfNoConnection
     }
     rpc.UpdateExtraTimeout(&req.Extra, c.Timeout)
     req.Body, err = args.WriteBoxedGeneral(req.Body)
@@ -253,6 +254,9 @@ func streamwriteClientCode(qw422016 *qt422016.Writer, bytesVersion bool, shortPa
 	qw422016.N().S(`", err)
     }
     resp, err := c.Client.Do(ctx, c.Network, c.Address, req)
+    if extra != nil && resp != nil {
+        extra.ResponseExtra = resp.Extra
+    }
     defer c.Client.PutResponse(resp)
     if err != nil {
         return internal.ErrorClientDo("`)
diff --git a/internal/tlcodegen/test/gen/cases/meta/meta.go b/internal/tlcodegen/test/gen/cases/meta/meta.go
index c61eeed2..8276c719 100644
--- a/internal/tlcodegen/test/gen/cases/meta/meta.go
+++ b/internal/tlcodegen/test/gen/cases/meta/meta.go
@@ -14,6 +14,11 @@ import (
 	"github.com/vkcom/tl/pkg/basictl"
 )
 
+func SchemaGenerator() string { return "(devel)" }
+func SchemaURL() string       { return "" }
+func SchemaCommit() string    { return "" }
+func SchemaTimestamp() uint32 { return 0 }
+
 // We can create only types which have zero type arguments and zero nat arguments
 type Object interface {
 	TLName() string // returns type's TL name. For union, returns constructor name depending on actual union value
diff --git a/internal/tlcodegen/test/gen/goldmaster/meta/meta.go b/internal/tlcodegen/test/gen/goldmaster/meta/meta.go
index 231d21e1..ff04033d 100644
--- a/internal/tlcodegen/test/gen/goldmaster/meta/meta.go
+++ b/internal/tlcodegen/test/gen/goldmaster/meta/meta.go
@@ -14,6 +14,13 @@ import (
 	"github.com/vkcom/tl/pkg/basictl"
 )
 
+func SchemaGenerator() string { return "(devel)" }
+func SchemaURL() string {
+	return "https://github.com/VKCOM/tl/blob/master/internal/tlcodegen/test/tls/goldmaster.tl"
+}
+func SchemaCommit() string    { return "abcdefgh" }
+func SchemaTimestamp() uint32 { return 301822800 }
+
 // We can create only types which have zero type arguments and zero nat arguments
 type Object interface {
 	TLName() string // returns type's TL name. For union, returns constructor name depending on actual union value
diff --git a/internal/tlcodegen/test/gen/goldmaster_nosplit/meta/meta.go b/internal/tlcodegen/test/gen/goldmaster_nosplit/meta/meta.go
index 90f5954a..0fede745 100644
--- a/internal/tlcodegen/test/gen/goldmaster_nosplit/meta/meta.go
+++ b/internal/tlcodegen/test/gen/goldmaster_nosplit/meta/meta.go
@@ -14,6 +14,13 @@ import (
 	"github.com/vkcom/tl/pkg/basictl"
 )
 
+func SchemaGenerator() string { return "(devel)" }
+func SchemaURL() string {
+	return "https://github.com/VKCOM/tl/blob/master/internal/tlcodegen/test/tls/goldmaster.tl"
+}
+func SchemaCommit() string    { return "abcdefgh" }
+func SchemaTimestamp() uint32 { return 301822800 }
+
 // We can create only types which have zero type arguments and zero nat arguments
 type Object interface {
 	TLName() string // returns type's TL name. For union, returns constructor name depending on actual union value
diff --git a/internal/tlcodegen/tlgen_go.go b/internal/tlcodegen/tlgen_go.go
index 61f1fc83..d1d9238c 100644
--- a/internal/tlcodegen/tlgen_go.go
+++ b/internal/tlcodegen/tlgen_go.go
@@ -238,7 +238,7 @@ var _ = basictl.NatWrite
 		if err := gen.addCodeFile(filepath.Join(FactoryGoPackageNameBytes, FactoryGoPackageNameBytes+goExt), gen.copyrightText+gen.generateFactoryBytes(sortedNames, directImports)); err != nil {
 			return err
 		}
-		if err := gen.addCodeFile(filepath.Join(MetaGoPackageName, MetaGoPackageName+goExt), gen.copyrightText+gen.generateMeta()); err != nil {
+		if err := gen.addCodeFile(filepath.Join(MetaGoPackageName, MetaGoPackageName+goExt), gen.copyrightText+gen.generateMeta(TLGenVersion())); err != nil {
 			return err
 		}
 		filepathName = filepath.Join("internal", "a_tlgen_helpers_code.go") // TODO decollision