AI-personalized SMS and RCS content
In flows, Klaviyo uses AI to adapt tone and product names in SMS and RCS messages to each shopper's engagement, with automatic A/B tests against the original copy.
Entries on this page are generated by AI from vendor sources. How AI is used
SMS, MMS & RCS
Text and rich messaging over carrier networks.
| Month | Changes |
|---|---|
| 2026-01 | 4 |
| 2026-02 | 7 |
| 2026-03 | 1 |
| 2026-04 | 0 |
| 2026-05 | 11 |
| 2026-06 | 5 |
| 2026-07 | 6 |
| 2026-08 | 1 |
| 2026-09 | 9 |
| 2026-10 | 0 |
| 2026-11 | 1 |
Select a month to view the whole-record timeline. This clears timeline filters.
Platforms with recorded changes
Platforms with at least one feature state classified in this capability (primary or secondary, minor updates included), in the site's fixed order. Select one to filter the timeline. Counts are not shown side by side: they reflect how finely each vendor documents, not how much it offers.
Adobe AJO Bloomreach Braze Iterable Klaviyo MoEngage SFMC Engagement SFMC Next Treasure AI HubSpot SF Account Engagement
Timeline
← Back to the Release MatrixTimeline filters
Filters apply to the timeline. The chart and platform totals describe the whole record. Selecting a chart month clears timeline filters to show that same whole-record scope.
Matches the Release Matrix evidence: latest state reached in the selected period, entries under review excluded, primary and secondary capabilities included.
No recorded changes match these filters.
Within each period: major updates as cards, then notable ones as rows; newest first in each group. Minor updates below.
November 20261 change
September 20269 changes
RCS messaging
Send RCS messages from campaigns and journeys with rich media, carousels, CTAs, read-receipt tracking and SMS fallback.
Shopify SMS double opt-in
Sends a branded SMS double opt-in confirmation through Braze instead of Shopify's confirmation email.
Link shortening and click tracking for SMS
Engage Studio adds link shortening and click tracking for SMS campaigns, using a short domain and async click-event recording with bot detection.
Default response for unmatched inbound SMS/WhatsApp messages
Configure a default automated reply for inbound SMS and WhatsApp messages that match no keyword.
Expanded RCS messaging
Expands RCS messaging channel support and tooling for richer mobile messages.
SMS flow and engagement metrics in Flow Builder
View SMS flow and engagement performance metrics directly inside Flow Builder.
Adobe AJO 1 minor update SMS, MMS & RCS
- Announced Custom auth headers for SMS BYOP source SMS BYOP OAuth connections will support custom authentication headers, including token placement and request formatting.
Braze 1 minor update Deliverability & sender infrastructure
- GA Multiple link shortening domains source Adds support for multiple link shortening domains for SMS, MMS, and RCS so messages aren't dependent on one shared domain.
SFMC Next 1 minor update SMS, MMS & RCS
- GA (regional) RCS messaging for additional countries source RCS messaging now reaches customers in Canada, Colombia, Italy, Netherlands, Norway, Peru, Poland, Singapore, Slovakia, Spain, Sweden and Ukraine.
August 20261 change
AI-personalized SMS and RCS content
Now GA (9 Nov 2026). Current summary: In flows, Klaviyo uses AI to adapt tone and product names in SMS and RCS messages to each shopper's engagement, with automatic A/B tests against the original copy.
July 20266 changes
SMS and omnichannel campaigns in Loomi Marketing Agent
Loomi Marketing Agent for campaigns can now build SMS-only or combined email-and-SMS omnichannel campaigns from plain-language requests.
Transactional SMS add-on
A Transactional SMS add-on SKU lets accounts send non-marketing or 1:1 SMS as a monthly add-on, including to contacts opted out of marketing SMS.
Merlin AI Campaign Insight Agent for SMS
Extends the Merlin AI Campaign Insight Agent to SMS with connector performance, spike/dip, and trigger-funnel diagnostics; requires CSM access if not already enabled.
SMS URL shortening for personalized links
Adds URL shortening and click tracking for SMS links built from personalization parameters, removing the need for custom Jinja workarounds.
Truecaller integration
Adds Truecaller verified Caller ID, SMS, and post-call interaction screens.
Adobe AJO 1 minor update SMS, MMS & RCS
- GA Custom provider integration enhancements for mobile source Custom provider integrations for mobile gained editable Content-Type headers, extra custom headers, and SMS helper functions.
June 20265 changes
SMS channel in Engage Studio
SMS becomes a new Engage Studio channel for promotional texting to CDP audiences, with consent, quiet hours and delivery tracking; available in the US with dedicated short codes.
Dynamic product recommendations in SMS
SMS messages can now include personalized product recommendations built from real-time catalog and customer data.
Default Quiet Hours for SMS
New SMS campaigns now default to Quiet Hours pausing sends 8pm-9am local time, for both marketing and transactional messages.
SMS usage dashboard
Customers who purchase SMS through AJO get a usage dashboard with 90 days of MO/MT send metrics, downloadable as CSV.
Adobe AJO 1 minor update Reporting & dashboards
- GA Unique Clicks module for SMS reports source SMS reports gain a Unique Clicks module, matching tracking already available for email reports.
May 202611 changes
Unified Mobile Message channel with native RCS authoring
SMS, MMS, and RCS are unified under one Mobile Message action, with native authoring of rich RCS media like carousels.
Rich Communication Services (RCS) channel support
Adds RCS as a new channel, letting marketers build interactive branded mobile messages with the RCS content type in Salesforce CMS.
Richer WhatsApp and SMS automation content and profile merging
WhatsApp and SMS automations gain new question types, longer messages, rich formatting and video, plus merging of phone-only and email profiles.
Custom dataset routing for inbound SMS
Inbound SMS can now be routed to a custom, profile-enabled Experience Event dataset instead of only the default one.
Shared US/Canada SMS short and long codes with Marketing Cloud Next
DLT template upload for SMS sending in India
Marketers can upload DLT-registered templates required to send SMS messages to recipients in India.
Rich MMS messages
Adds rich MMS messaging to increase subscriber engagement alongside SMS and RCS.
Adobe AJO 3 minor updates SMS, MMS & RCS
- GA Real-time SMS character count source SMS authoring now shows a real-time character count to track message segmentation and sending cost impact.
- GA Deep links in SMS content source SMS content can now include deep links via a Url helper function, routing recipients directly into an app.
- GA Built-in setup guide for SMS webhooks source SMS webhook configuration now includes a built-in setup guide with examples to align provider payloads.
SFMC Next 1 minor update SMS, MMS & RCS
- GA Automatic E.164 phone number formatting source An admin setting automatically converts phone numbers without a country code to E.164 format, matching them against consent records for accurate routing.
March 20261 change
Branching in automated conversations
Automated SMS/RCS conversations can now branch customers down different paths based on keyword or question responses.
February 20267 changes
Rich Communication Services (RCS) for Business
RCS for Business adds rich visuals and interactive two-way experiences to text messaging as a new message format.
Decisioning support in SMS channel
SMS content can now be personalized and optimized via Decisioning using Priority Scores, Formulas, or AI Models.
SMS webhooks across all providers
Inbound and feedback webhooks are now supported across all SMS providers.
Klaviyo 4 minor updates SMS, MMS & RCS · Offer decisioning
- GA RCS interactions in Automated Conversations source Automated Conversations can now use RCS suggested replies and live previews for tap-friendly messaging.
- GA Next Best Product recommendations for mobile channels source Next Best Product recommendations now extend beyond email into SMS, RCS and WhatsApp.
- GA Video attachments for SMS and RCS source MP4 videos can now be attached to SMS and RCS messages.
January 20264 changes
RCS channel in Flows
Adds RCS as a native Flows channel for Android, with rich templates, personalization, A/B testing, event-based branching, and SMS fallback.
SMS enhancements including UTM link tracking for campaigns
Adds new SMS capabilities including UTM link tracking to measure SMS campaign performance.
SFMC Next 1 minor update SMS, MMS & RCS
- GA (regional) Short code procurement for SMS in the US and Canada source Marketers can request SMS short codes for the United States and Canada directly in Marketing Cloud Setup, with visibility into the procurement lifecycle.
SF Account Engagement 1 minor update SMS, MMS & RCS
- GA Engagement Studio SMS and WhatsApp send steps source Engagement Studio adds steps that trigger SMS and WhatsApp sends through Marketing Cloud Next On-Demand Flows.