Changelog

Project billing assignments

July 6, 2026

Organization administrators can now view and manage the payment method assigned to each project. Administrators can move one or more projects to another payment method within the same organization, helping keep usage charges allocated correctly when billing arrangements change.

See Billing for details.

Styled WebVTT subtitles

June 25, 2026

MK.IO can now preserve color and style information from input subtitles in Web Video Text Tracks (WebVTT) output.

New MK.IO billing view

June 23, 2026

The new Billing view is now generally available in MK.IO. Administrators can review organization spend across MK.IO and MK.IO Beam, filter by product, inspect monthly and daily usage, download comma-separated value (CSV) reports, and manage the Beam billing model for each payment method.

See Billing for details.

Payment method display names

June 3, 2026

Payment methods now support display names in the MK.IO user interface and Management Application Programming Interface (API). Use display names to distinguish multiple payment methods associated with the same sales order. The name appears in payment method lists and details.

See Billing for details.

Beam usage summaries for partner customers

June 3, 2026

Customers who access MK.IO through a channel partner can now see current-month Beam usage summaries on the MK.IO dashboard, including encoding and reception hours. Billing information remains managed by the channel partner and is not shown to those customers.

Extended live event archive window

May 19, 2026

Live event archive windows now support durations of up to 7 days, up from the previous maximum of 25 hours.

When the archive window is set to more than 25 hours, the manifest presents a rolling 25-hour window of the most recent content. To access content older than 25 hours, specify start and end times in the manifest request query parameters. You can also use asset or account filters to control exactly which portion of the archive each manifest request returns.

See Extended archive window for details.

Fastly CDN delivery

May 19, 2026

MK.IO self-service and managed deployments previously using Akamai now use Fastly for Content Delivery Network (CDN) delivery. The migration also adds updated monitoring and metering for CDN-backed streaming endpoints.

AWS Marketplace private offers

May 18, 2026

MK.IO now supports private offers through Amazon Web Services (AWS) Marketplace. This release supports pre-committed marketplace agreements with custom rate cards and entitlements.

High-scale flow resilience

April 13, 2026

MK.IO now handles high-volume flow workloads with fewer and less complex database queries. These changes reduce platform load and improve resilience for customers.

Broader packaging interoperability

March 6, 2026

MK.IO can now apply advanced settings to the just-in-time packager. These settings support packaging interoperability requirements, including DASH interoperability and cache values.

RIST distribution for Multiview

January 28, 2026

MK.IO now supports Reliable Internet Stream Transport (RIST) distribution for Multiview sources. A source can be reused up to 250 times in downstream flows across multi-cluster locations without distributing multiple copies over the internet.

Self-service Multiview

November 19, 2025

Self-service Multiview is now available to select MK.IO customers. You can create Multiview channels, with quotas and usage statistics available for the supported flow types.

VOD audio dubbing

November 14, 2025

MK.IO now supports on-demand audio dubbing for Video on Demand (VOD) content. Use an Artificial Intelligence (AI) workflow to generate translated audio tracks from an existing audio track. VOD audio dubbing is available in all regions and is billed per minute of processed content.

See Multi-language VOD dubbing for details.

Audio track side loading

November 14, 2025

You can now side-load additional audio tracks into existing VOD assets through the API. Use this feature to add commentary, alternate languages, or descriptive audio. Audio track side-loading is available in all regions at no additional charge.

See Track insertion transform for details.

Streaming endpoint charge notifications

October 22, 2025

MK.IO now displays a billing message before you start a streaming endpoint. The message also appears in the Create and start workflow, so you can confirm that charges apply before the endpoint starts.

Compare live channel templates

October 15, 2025

You can now compare Live Channel template versions in the MK.IO interface. Choose a revision to see a side-by-side or inline comparison, review highlighted metadata and configuration changes, and navigate directly to modified sections.

Uninterrupted live service upgrades

October 15, 2025

Nightly MK.IO control plane upgrades no longer interrupt running Live Events or Live Channel services. Planned service interruptions remain limited to agreed maintenance windows.

Expanded Dolby Vision support

October 10, 2025

MK.IO now supports Dolby Vision Profile 8.4 for Hybrid Log-Gamma (HLG) channels and Dolby Vision Profile 8.1 passthrough. Profile 8.4 avoids converting HLG sources to PQ10, while Profile 8.1 passthrough preserves source metadata in the encoded output.

Dynamic live outputs for events

July 2nd, 2025

You can now dynamically add or remove live outputs from a live event in MK.IO, even while the event is running.

What is new

• Add or remove one or more live outputs at any time, without stopping or restarting the event.
• Manage destinations on the fly for greater flexibility in live production workflows.
• Streamline your transition from Live to VOD by controlling exactly how and where your live content is output and recorded.

Live transcription

July 2025

Live encoding events can generate real-time subtitles through the Predefined_ACSLiveTranscription AI pipeline. The pipeline produces WebVTT subtitles for HLS output and TTML subtitles for DASH output, with less than five seconds of added latency. Configure the source language and optional expected phrases when creating the live event.

The feature launched in all regions and is billed per minute of a running live event.

See Configure a live event for details.

VOD translation

July 2025

VOD translation can transcribe an audio track and translate the result into up to 25 languages in one operation. The workflow produces WebVTT subtitle tracks for the source and target languages. The feature launched in all regions and is billed per minute of processed VOD content.

See Transcription and translation transforms for details.

Subtitle support in asset conversion

June 9th, 2025

MK.IO now supports subtitle preservation during asset conversion, ensuring that captions from your live events remain available in your on-demand MP4 content.

Audio-only transcoding for Live Events

May 22nd, 2025

MK.IO now supports audio-only transcoding for live events, helping you deliver optimized, bandwidth-efficient audio streams.

Simplify your account with the new billing view

May 20th, 2025

MK.IO added detailed billing information for the current or a selected month. The initial view grouped usage into Live Processing and Recording, Content Processing and Transcoding, Video Streaming, Content Protection, and Storage Management.

Customers with multiple projects could inspect each project or an aggregate view. Usage across multiple subscriptions was aggregated for reporting, while charges remained separated by subscription. The detailed view launched in all regions at no extra cost.

See Billing for the current billing view.

MK.IO now supports MK.IO Beam devices

May 5th, 2025

MK.IO now includes MK.IO Beam device management, allowing you to monitor, control, and update devices through the same interface.

Fleet Management for MK.IO Beam Devices
Access your Beam device UI remotely and troubleshoot issues with the new remote access capabilities. You can also add, edit, and remove devices directly in the MK.IO UI without using the API. The release added a unified device-status view and a map of registered device locations.

Customer Onboarding Workflow
The new onboarding flow makes it simple to get started with Beam devices:

• Create or link your organization
• Add a payment method
• Set up your first project
• Register and activate your Beam device from MK.IO

Beam Software Upgrades
Beam bundle downloads and software upgrades are now available through MK.IO for connected devices.

Docs: MK.IO Beam devices onboarding

Fleet management became available in April 2025 at no additional charge.

Job notifications via webhooks

April 14th, 2025

MK.IO jobs now support webhook notifications through the Management API. Payloads use the CloudEvents format, delivery runs asynchronously, and MK.IO retries failed deliveries. Webhooks launched in all regions at no additional cost.

Docs: Webhooks

MK.IO available on AWS marketplace

February 28th, 2025

MK.IO can now be discovered, subscribed to, and deployed directly through the AWS Marketplace. This simplifies procurement for enterprise customers and makes it easier to integrate MK.IO within your existing AWS infrastructure. Key Benefits:

• Streamlined procurement through your AWS account
• Consolidated billing with your existing AWS usage
• Faster onboarding for enterprise customers

AWS users can access MK.IO without additional contracts or setup. At launch, the subscription used pay-as-you-go billing with no activation or setup fees. Customers could apply an AWS enterprise commitment and run processing close to content stored in Amazon S3.

Docs: Subscribe through AWS Marketplace

Live & VOD transcription enhancements

February 10th, 2025

MK.IO now offers more flexibility, accuracy, and insight into your transcription workflows across Live and VOD content.

Update Caption Language Values
Easily update transcription language codes (e.g., en-UK → en-GB) directly from the UI or API - no more manual fixes or request errors.

Live Transcription Monitoring
MK.IO now includes metrics and alerts for monitoring Live transcription performance.

Language Selection for Live and VOD
Choose your preferred transcription language for both Live and VOD workflows - ensuring accurate captions and localized experiences for every audience.

In-Band Audio Transcriptions
Generate transcriptions automatically from in-band audio streams in your Live Encodes, simplifying setup and improving reliability.

VOD Speech-to-Text Translation
Upload any VOD asset and automatically generate translated transcripts in multiple languages, expanding global reach and accessibility.

Docs: Live transcription | VOD transcription and translation

Streaming endpoints: separate domain and name fields

February 3rd, 2025

MK.IO now generates Streaming Endpoint URLs with separate domain and name fields for improved security, privacy, and naming flexibility.

What is new:

• The Streaming Endpoints API now includes a new field: publicName
• This publicName is used exclusively for published endpoint URLs, ensuring that only approved, share-safe identifiers appear in public addresses.
• The publicName is validated as globally unique and formatted for compatibility in both DNS names and URL paths.

Docs: Streaming endpoints

Upload local files for transform from the UI

January 14th, 2025

You can now upload local files directly from the MK.IO UI to initiate transformations without using the API or external storage.

Docs: Add assets into MK.IO

ALAC support

January 10th, 2025

✨ Features added
Apple Lossless Audio Codec support is now available.

Docs: Encoding Transform

Asset Filtering by UTC Start and End Time

January 7th, 2025

You can now filter and trim assets using precise UTC start and end times in MK.IO.

What is new

• Specify start and end times in UTC when filtering or trimming your content.
• Achieve frame-accurate control over the portions of live or recorded content you want to keep.
• Ideal for editing live events, highlights, or scheduled content that spans multiple time zones.

Use live output name during asset conversion

January 6th, 2025

When converting assets, MK.IO now automatically uses the Live Output name, ensuring consistent naming conventions across workflows.

Docs: Asset conversion transform

Sorenson Spark support

December 23rd, 2024

✨ Features added
Sorenson Spark support is now available for Flash content.

Docs: Encoding Transform

ADPCM and DPCM for WAV

November 19th, 2024

✨ Features added
ADPCM and DPCM support is now available for WAV content.

Docs: Encoding Transform

Operational metrics

November 5, 2024

Operational metrics became available in all regions on September 12, 2024. Projects can publish Prometheus metrics for an external monitoring framework. Early adopters needed to update their scrape URL to the documented endpoint.

Docs: Activate and scrape operational metrics

AI-based VOD transcription

October 28, 2024

AI-based transcription became available for VOD assets in all regions. The workflow generates a WebVTT subtitle track from an audio track and is billed per minute of processed VOD content.

Docs: VOD transcription

Role-based access control

October 21, 2024

Role-based access control (RBAC) became available in all regions at no additional charge. It replaced individual project assignments with teams, roles, scopes, and rights assignments. During the rollout, the earlier and new authorization models ran together and MK.IO applied the more restrictive result.

Docs: Access, users and teams

MP3 ingest | Cover images

October 11th, 2024

✨ Features added
Encoding transform can now ingest MP3. Cover images are also supported.

Docs: Encoding Transform

WebM AV1 | WMV Microsoft MPEG4 | H.263 ingest

September 24th, 2024

✨ Features added
Encoding transform can now ingest files in WebM format including AV1 video codec.
Encoding transform can now ingest files in WMV format with Microsoft MPEG4 video codec.
Encoding transform can now ingest using H.263 video codec.

Docs: Encoding Transform

MJPEG ingest

September 18th, 2024

✨ Features added
Encoding transform can now ingest files in content using MJPEG video codec.

Docs: Encoding Transform

VP8 | VP9 | Opus | Vorbis ingest

August 29th, 2024

✨ Features added
Encoding transform can now ingest files in WebM format including VP8, VP9 video codecs and Opus, Vorbis audio codecs.

Docs: Encoding Transform

WebVTT subtitle side-loading

August 19, 2024

Web Video Text Tracks (WebVTT) subtitles can now be side-loaded to an existing VOD asset through the Media API. The feature launched in all regions at no additional charge.

Docs: Track insertion transform

VOD input clipping

August 16, 2024

VOD processing jobs now support clipping an asset or HTTP input with a start and end time through the Media API. The feature launched in all regions at no additional charge.

Docs: Job with input clipping

New region: West US

August 8th, 2024

✨ New region deployed
We are opening one new region: West US

Docs: Cloud region support

RTMPS ingest

July 25th, 2024

✨ Features added
Live events can now use RTMPS as ingest transport protocol.

SRT ingest

July 17, 2024

Live encoding events can now use Secure Reliable Transport (SRT) for ingest. SRT uses a passphrase and AES-128 encryption by default, although protocol negotiation can select another supported key length. Live passthrough remains limited to RTMP ingest. SRT ingest launched in all regions at no additional charge.

Docs: Advanced live streaming features

MP4 transition | Variable frame rate | Thumbnails | JWT

July 9, 2024

• The transition to the current MP4 output format completed in all regions. Existing MK.IO and Azure Media Services assets remained deliverable, and existing transforms required no changes.
• Encoding transforms added support for variable-frame-rate input.
• Standard VOD transcoding began generating one JPEG thumbnail at 50 percent of the size of the highest-resolution rendition. The release also added the MediaKind.ThumbnailGeneratorPreset for custom thumbnails and sprite generation. Thumbnail generation launched in all regions at no additional charge.
• JSON Web Token (JWT) became the main authentication and authorization format.

Docs: Generate thumbnails | API tokens

Personal access tokens

July 9, 2024

MK.IO personal access tokens use the JSON Web Token (JWT) format and can authenticate API requests with a bearer authorization header. This release began the transition away from the earlier x-mkio-token header, which remained temporarily supported during migration. Personal access tokens launched in all regions.

See API tokens for details.

Asset conversion presets | MPEG-1 | VC-1 ingest

June 27, 2024

• The CopyTopBitrateInterleaved, CopyAllBitratesNonInterleaved, and CopyAllBitratesInterleaved presets became available in all regions. They convert live-event recordings or legacy MP4 content to the current MP4 layout. At launch, processing minutes were billed at the Foundation SD rate.
• Encoding transforms added MPEG-1 and VC-1 video-codec ingest.

Docs: Asset Conversion Transform | Encoding Transform

Download streaming presets

June 13, 2024

The Predefined_DownloadOnly and Predefined_DownloadAndClearStreaming policies became available in all regions. They let a streaming locator return direct file-download URLs for workflows such as post-production, thumbnail retrieval, and subtitle retrieval. The policies had no additional feature charge at launch, but outbound traffic remained billable.

Docs: Streaming locators

Aspect ratio | Rotation preserved

May 29th, 2024

✨ Features added
Encoding transforms have now been updated to preserve the source aspect ratio and rotation information.

Docs: Encoding Transform

Integrated CDN endpoints

May 2024

MK.IO added Content Delivery Network (CDN) enabled streaming endpoints in all regions for live and on-demand HLS CMAF and DASH delivery. The initial integrated provider was Akamai. The release also retained support for bringing an external CDN to an MK.IO origin.

Integrated CDN delivery launched as a pay-as-you-go capability backed by dedicated endpoint capacity. At launch, customers needed to create a new CDN endpoint because an existing endpoint could not be converted. In May 2026, MK.IO moved integrated CDN delivery from Akamai to Fastly.

See Publish content for streaming for current endpoint options.

OpenID Discovery | Multiple options per DRM

May 8th, 2024

✨ Features added
Support OpenID Discovery for Content Key Policy with a token protection.
It is now possible to use Multiple ContentKeyPolicyOptions with the same DRM type in Content Key Policy.

Docs: Use an OpenID to retrieve Primary Verification Key | Content protection

Private storage links

April 22, 2024

MK.IO added private network links for Azure Storage accounts in all regions. The connection requires configuration in MK.IO and approval by the storage account owner in Azure. Requests fail until both sides are configured. At launch, the private link could not be removed from that MK.IO storage resource after it was enabled.

At launch, the feature required the MK.IO 2024 plan and had a fixed monthly fee. Private-link ingress and egress traffic also incurred charges.

See Set up a private storage link for details.

ISMV and AVI ingest

March 28th, 2024

✨ Features added
Encoding transform can now ingest ISMV and AVI containers.

Docs: Encoding Transform

New region: Central US

March 18th, 2024

✨ New region deployed
We are opening one new region: Central US

Docs: Cloud region support

Persistent licenses | External PlayReady server

February 29th, 2024

✨ Features added
Persistent licenses are now supported for FairPlay, Widevine and PlayReady DRMs. This enables offline playback of content.
It is now possible to use an External PlayReady License Server when a custom streaming policy is defined.

Docs: Content protection

Constant Video Quality presets

February 9, 2024

Three Constant Video Quality (CVQ) presets became available for on-demand transforms in all regions: H264MultipleBitrateSDWithCVQ, H264MultipleBitrate720pWithCVQ, and H264MultipleBitrate1080pWithCVQ. At launch, CVQ was available in the Advanced and Premium encoding tiers.

Docs: Encoding transform

Asset deletion policies | Private offer

January 5th, 2024

✨ Features added
Asset deletion policies have been added to allow you to determine how MK.IO manages the underlying content upon the deletion of an asset.
Private offer support has been introduced to our Azure Marketplace offer to cater specifically to high-volume users and address complex use cases.

Bulk Asset Ingest Tool

December 15th, 2023

✨ Features added
MK.IO now includes a Bulk Asset Ingest Tool for migrating and managing multiple assets in one operation.

DASH & HLS playback | Players

December 1st, 2023

✨ Features added
Now introducing DASH & HLS playback with support for multiple players. Choose your preferred experience with AMS Player, Shaka Player, or MKPlayer, providing enhanced flexibility and compatibility for a seamless video playback journey.

First Quality | Asset Filters by name

November 17th, 2023

✨ Features added
Support for the “First Quality” setting, allowing you to set the initial playback quality level directly in the manifest, offering a customized video experience right from the beginning.
Asset Filters now include name-based track filtering.

ClearKey for DASH | Latency | Security | New regions

November 3rd, 2023

✨ Features added
ClearKey encryption support for DASH-packed content is now added. This robust addition fortifies the security of your digital assets, ensuring that content packaged in DASH format is now seamlessly compatible with ClearKey encryption.
Enhanced end-to-end latency in live encoding, achieving a 25-second threshold; performance benchmarks required for marketing validation.
We have further enhanced our advanced storage security measures, incorporating the latest advancements in encryption, access controls, and threat mitigation.
We are opening two new availability regions: Japan West and Europe West.

Docs: Content protection | Latency | Cloud region support

DRM with client JWT entitlement

October 20th, 2023

✨ Features added
Expanded DRM support for client JWT entitlement management. This enhancement guarantees improved control, heightened security measures, and smoother access management for your content.

Docs: Using custom claims in content key policies

Video Quality enhancements

October 6th, 2023

✨ Features added
Video quality enhancements improve PSSI and VMAF scores without changing the output bitrate.

Asset Filters | Bug fixes

September 22nd, 2023

✨ Features added
MK.IO now supports Asset Filters that allow you to dynamically modify the output of your HLS and DASH manifests. You can filter tracks in the manifest based on Bitrate and FourCC, a video codec identifier. 🪲 Bugs resolved
Resolved playback issues with DRM-protected content on the Live Events page.

Content protection | Encoding | Live encoding

September 6th, 2023

✨ Features added
Content Key Policies enable you to control access to their content delivered via MK.IO. MK.IO now supports the following protection schemes: AES-128, ClearKey, and industry grade multi-DRM options like Widevine, FairPlay, and PlayReady. Access control can be managed by authorizing users based on claims in JWT tokens.

Video Encoding is now available and allows you to set up encoding jobs based on preconfigured Transforms. Supported encoding codecs include H.264 and H.265 with either single bitrate or multi-bitrate configurations.

Live Events functionality now includes support for live encoding, enabling you to transcode your live event into 720p or 1080p multi-bitrate HLS or DASH output. Users can select these options either through via the Create Live Event page or the /liveEvents API.

Docs: Content protection | Encoding Transform

Multi‑bitrate RTMP | Live streaming | Bug fixes

August 4th, 2023

✨ Features added
MK.IO now accepts multi-bitrate RTMP input for live passthrough events. MK.IO exposes each input bitrate in the HLS and DASH output. MK Player then selects a bitrate based on the viewer’s playback conditions.

Live Streaming is now available. Transcode your RTMP input stream into multiple HLS and DASH output bitrates. Foundation level outputs up to 720p, while the Advanced level provides up to 1080p output.

🪲 Bugs resolved
A bug that resulted in streaming endpoints not starting due to malformed labels has been resolved.