diff --git a/README.md b/README.md
index d35484d..b12c578 100644
--- a/README.md
+++ b/README.md
@@ -2,10 +2,10 @@
 
 [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [v2.5](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-API-Specification-Version-2-5-FINAL.pdf) types for Go programming language (Golang)
 
-Also includes [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [Dynamic Native Ads API
-Specification Version 1.1](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf) types:
+Also includes [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [Dynamic Native Ads API Specification Version 1.2](https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf) types:
 - [4 Native Ad Request Markup Details](native/request/)
 - [5 Native Ad Response Markup Details](native/response/)
+- [7 Reference Lists/Enumerations](native/)
 
 # Using
 
@@ -53,5 +53,4 @@ Master always contains latest code, so better use some package manager to vendor
 # TODO
 - [ ] Review all integral types, probably, switch everything to signed ones or just to `int`?
 - [ ] Consider switching back to `encoding/json.RawMessage`, as Go 1.8 fixed serialisation for non-ptr (probably, when Go 1.9 or even 1.10 is out)
-- [x] Review enum types (typed enum attributes + constants)
 - [ ] Review types, that are enums (or "open enums" like `BidRequest.at`) themselves, but not described in section 5 - make them typed
diff --git a/native/README.md b/native/README.md
index 3abb39f..608194e 100644
--- a/native/README.md
+++ b/native/README.md
@@ -1,4 +1,4 @@
 # native
 
 [Go](https://golang.org/) implementation of [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [Dynamic Native Ads API
-Specification Version 1.1](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf) types.
+Specification Version 1.2](https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf) types/enums.
diff --git a/native/request/README.md b/native/request/README.md
index bd1dd1a..45687f8 100644
--- a/native/request/README.md
+++ b/native/request/README.md
@@ -1,4 +1,4 @@
 # native/request [![GoDoc](https://godoc.org/github.com/mxmCherry/openrtb/native/request?status.svg)](https://godoc.org/github.com/mxmCherry/openrtb/native/request)
 
 [Go](https://golang.org/) implementation of [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [Dynamic Native Ads API
-Specification Version 1.1](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf) section 4 Native Ad Request Markup Details types.
+Specification Version 1.2](https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf) section 4 Native Ad Request Markup Details types.
diff --git a/native/request/request.go b/native/request/request.go
index b141de3..e134c87 100644
--- a/native/request/request.go
+++ b/native/request/request.go
@@ -1,7 +1,7 @@
-// Package request provides OpenRTB Dynamic Native Ads API Specification Version 1.1
+// Package request provides OpenRTB Dynamic Native Ads API Specification Version 1.2
 // section 4 Native Ad Request Markup Details types:
 // https://www.iab.com/guidelines/real-time-bidding-rtb-project/
-// https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf
+// https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf
 package request
 
 import "github.com/mxmCherry/openrtb/native"
diff --git a/native/response/README.md b/native/response/README.md
index 1228aa3..1ef7fc3 100644
--- a/native/response/README.md
+++ b/native/response/README.md
@@ -1,4 +1,4 @@
 # native/response [![GoDoc](https://godoc.org/github.com/mxmCherry/openrtb/native/response?status.svg)](https://godoc.org/github.com/mxmCherry/openrtb/native/response)
 
 [Go](https://golang.org/) implementation of [OpenRTB](https://www.iab.com/guidelines/real-time-bidding-rtb-project/) [Dynamic Native Ads API
-Specification Version 1.1](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf) section 5 Native Ad Response Markup Details types.
+Specification Version 1.2](https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf) section 5 Native Ad Response Markup Details types.
diff --git a/native/response/response.go b/native/response/response.go
index d0e7b61..20bfee5 100644
--- a/native/response/response.go
+++ b/native/response/response.go
@@ -1,7 +1,7 @@
-// Package response provides OpenRTB Dynamic Native Ads API Specification Version 1.1
+// Package response provides OpenRTB Dynamic Native Ads API Specification Version 1.2
 // section 5 Native Ad Response Markup Details types:
 // https://www.iab.com/guidelines/real-time-bidding-rtb-project/
-// https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-Native-Ads-Specification-1-1_2016.pdf
+// https://iabtechlab.com/wp-content/uploads/2016/07/OpenRTB-Native-Ads-Specification-Final-1.2.pdf
 package response
 
 // 5.1 Object: Response