diff --git a/configuration.go b/configuration.go
index 652e8fd..d0fd70a 100644
--- a/configuration.go
+++ b/configuration.go
@@ -22,7 +22,7 @@ type ConfigurationOption func(*Configuration)
 func NewConfiguration(opts ...ConfigurationOption) *Configuration {
 	cfg := &Configuration{
 		basePath:  "https://api.mux.com",
-		userAgent: "Mux Go | 5.3.0",
+		userAgent: "Mux Go | 5.4.0",
 	}
 	for _, opt := range opts {
 		opt(cfg)
diff --git a/docs/AssetsApi.md b/docs/AssetsApi.md
index f563e19..0aff1f6 100644
--- a/docs/AssetsApi.md
+++ b/docs/AssetsApi.md
@@ -407,7 +407,7 @@ Name | Type | Description  | Notes
 > AssetResponse UpdateAssetMp4Support(ctx, aSSETID, updateAssetMp4SupportRequest)
 Update MP4 support
 
-Allows you to add or remove mp4 support for assets that were created without it. Currently there are two values supported in this request, `standard` and `none`. `none` means that an asset *does not* have mp4 support, so submitting a request with `mp4_support` set to `none` will delete the mp4 assets from the asset in question.
+Allows you to add or remove mp4 support for assets that were created without it. The values supported are `capped-1080p`, `audio-only`, `audio-only,capped-1080p`, `standard`(deprecated),  and `none`. `none` means that an asset *does not* have mp4 support, so submitting a request with `mp4_support` set to `none` will delete the mp4 assets from the asset in question.
 
 ### Required Parameters
 
diff --git a/docs/CreateAssetRequest.md b/docs/CreateAssetRequest.md
index 6877935..aa5b5d8 100644
--- a/docs/CreateAssetRequest.md
+++ b/docs/CreateAssetRequest.md
@@ -7,7 +7,7 @@ Name | Type | Description | Notes
 **PlaybackPolicy** | [**[]PlaybackPolicy**](PlaybackPolicy.md) | An array of playback policy names that you want applied to this asset and available through `playback_ids`. Options include: `\"public\"` (anyone with the playback URL can stream the asset). And `\"signed\"` (an additional access token is required to play the asset). If no playback_policy is set, the asset will have no playback IDs and will therefore not be playable. For simplicity, a single string name can be used in place of the array in the case of only one playback policy. | [optional] 
 **PerTitleEncode** | **bool** |  | [optional] 
 **Passthrough** | **string** | Arbitrary user-supplied metadata that will be included in the asset details and related webhooks. Can be used to store your own ID for a video along with the asset. **Max: 255 characters**. | [optional] 
-**Mp4Support** | **string** | Specify what level (if any) of support for mp4 playback. In most cases you should use our default HLS-based streaming playback ({playback_id}.m3u8) which can automatically adjust to viewers' connection speeds, but an mp4 can be useful for some legacy devices or downloading for offline playback. See the [Download your videos guide](https://docs.mux.com/guides/enable-static-mp4-renditions) for more information. | [optional] 
+**Mp4Support** | **string** | Specify what level of support for mp4 playback.  * The `capped-1080p` option produces a single MP4 file, called `capped-1080p.mp4`, with the video resolution capped at 1080p. This option produces an `audio.m4a` file for an audio-only asset. * The `audio-only` option produces a single M4A file, called `audio.m4a` for a video or an audio-only asset. MP4 generation will error when this option is specified for a video-only asset. * The `audio-only,capped-1080p` option produces both the `audio.m4a` and `capped-1080p.mp4` files. Only the `capped-1080p.mp4` file is produced for a video-only asset, while only the `audio.m4a` file is produced for an audio-only asset.  The `standard`(deprecated) option produces up to three MP4 files with different levels of resolution (`high.mp4`, `medium.mp4`, `low.mp4`, or `audio.m4a` for an audio-only asset).  MP4 files are not produced for `none` (default).  In most cases you should use our default HLS-based streaming playback (`{playback_id}.m3u8`) which can automatically adjust to viewers' connection speeds, but an mp4 can be useful for some legacy devices or downloading for offline playback. See the [Download your videos guide](https://docs.mux.com/guides/enable-static-mp4-renditions) for more information.  | [optional] 
 **NormalizeAudio** | **bool** | Normalize the audio track loudness level. This parameter is only applicable to on-demand (not live) assets. | [optional] [default to false]
 **MasterAccess** | **string** | Specify what level (if any) of support for master access. Master access can be enabled temporarily for your asset to be downloaded. See the [Download your videos guide](https://docs.mux.com/guides/enable-static-mp4-renditions) for more information. | [optional] 
 **Test** | **bool** | Marks the asset as a test asset when the value is set to true. A Test asset can help evaluate the Mux Video APIs without incurring any cost. There is no limit on number of test assets created. Test asset are watermarked with the Mux logo, limited to 10 seconds, deleted after 24 hrs. | [optional] 
diff --git a/docs/UpdateAssetMp4SupportRequest.md b/docs/UpdateAssetMp4SupportRequest.md
index bcd18a3..8eddea0 100644
--- a/docs/UpdateAssetMp4SupportRequest.md
+++ b/docs/UpdateAssetMp4SupportRequest.md
@@ -3,7 +3,7 @@
 ## Properties
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Mp4Support** | **string** | String value for the level of mp4 support | [optional] 
+**Mp4Support** | **string** | Specify what level of support for mp4 playback.  * The `capped-1080p` option produces a single MP4 file, called `capped-1080p.mp4`, with the video resolution capped at 1080p. This option produces an `audio.m4a` file for an audio-only asset. * The `audio-only` option produces a single M4A file, called `audio.m4a` for a video or an audio-only asset. MP4 generation will error when this option is specified for a video-only asset. * The `audio-only,capped-1080p` option produces both the `audio.m4a` and `capped-1080p.mp4` files. Only the `capped-1080p.mp4` file is produced for a video-only asset, while only the `audio.m4a` file is produced for an audio-only asset.  The `standard`(deprecated) option produces up to three MP4 files with different levels of resolution (`high.mp4`, `medium.mp4`, `low.mp4`, or `audio.m4a` for an audio-only asset).  `none` will delete the MP4s from the asset in question.  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/model_create_asset_request.go b/model_create_asset_request.go
index 9b7f953..4bb7020 100644
--- a/model_create_asset_request.go
+++ b/model_create_asset_request.go
@@ -11,7 +11,7 @@ type CreateAssetRequest struct {
 	PerTitleEncode bool             `json:"per_title_encode,omitempty"`
 	// Arbitrary user-supplied metadata that will be included in the asset details and related webhooks. Can be used to store your own ID for a video along with the asset. **Max: 255 characters**.
 	Passthrough string `json:"passthrough,omitempty"`
-	// Specify what level (if any) of support for mp4 playback. In most cases you should use our default HLS-based streaming playback ({playback_id}.m3u8) which can automatically adjust to viewers' connection speeds, but an mp4 can be useful for some legacy devices or downloading for offline playback. See the [Download your videos guide](https://docs.mux.com/guides/enable-static-mp4-renditions) for more information.
+	// Specify what level of support for mp4 playback.  * The `capped-1080p` option produces a single MP4 file, called `capped-1080p.mp4`, with the video resolution capped at 1080p. This option produces an `audio.m4a` file for an audio-only asset. * The `audio-only` option produces a single M4A file, called `audio.m4a` for a video or an audio-only asset. MP4 generation will error when this option is specified for a video-only asset. * The `audio-only,capped-1080p` option produces both the `audio.m4a` and `capped-1080p.mp4` files. Only the `capped-1080p.mp4` file is produced for a video-only asset, while only the `audio.m4a` file is produced for an audio-only asset.  The `standard`(deprecated) option produces up to three MP4 files with different levels of resolution (`high.mp4`, `medium.mp4`, `low.mp4`, or `audio.m4a` for an audio-only asset).  MP4 files are not produced for `none` (default).  In most cases you should use our default HLS-based streaming playback (`{playback_id}.m3u8`) which can automatically adjust to viewers' connection speeds, but an mp4 can be useful for some legacy devices or downloading for offline playback. See the [Download your videos guide](https://docs.mux.com/guides/enable-static-mp4-renditions) for more information.
 	Mp4Support string `json:"mp4_support,omitempty"`
 	// Normalize the audio track loudness level. This parameter is only applicable to on-demand (not live) assets.
 	NormalizeAudio bool `json:"normalize_audio,omitempty"`
diff --git a/model_update_asset_mp4_support_request.go b/model_update_asset_mp4_support_request.go
index e9713a8..851cb4a 100644
--- a/model_update_asset_mp4_support_request.go
+++ b/model_update_asset_mp4_support_request.go
@@ -4,6 +4,6 @@
 package muxgo
 
 type UpdateAssetMp4SupportRequest struct {
-	// String value for the level of mp4 support
+	// Specify what level of support for mp4 playback.  * The `capped-1080p` option produces a single MP4 file, called `capped-1080p.mp4`, with the video resolution capped at 1080p. This option produces an `audio.m4a` file for an audio-only asset. * The `audio-only` option produces a single M4A file, called `audio.m4a` for a video or an audio-only asset. MP4 generation will error when this option is specified for a video-only asset. * The `audio-only,capped-1080p` option produces both the `audio.m4a` and `capped-1080p.mp4` files. Only the `capped-1080p.mp4` file is produced for a video-only asset, while only the `audio.m4a` file is produced for an audio-only asset.  The `standard`(deprecated) option produces up to three MP4 files with different levels of resolution (`high.mp4`, `medium.mp4`, `low.mp4`, or `audio.m4a` for an audio-only asset).  `none` will delete the MP4s from the asset in question.
 	Mp4Support string `json:"mp4_support,omitempty"`
 }