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MagicBlocks v3.9 - August 20, 2026

See what’s new in MagicBlocks and the improvements we’ve made to make it more powerful, flexible, and reliable. 🚀


🚀 New Features

AI Message Pricing Plans

MagicBlocks introduces a new AI Message-based pricing model. Each plan now includes a monthly AI message allowance, with additional usage billed at a per-message rate after the included limit is reached.


Monthly Spend Cap

Workspace owners can now configure a Monthly Spend Cap to limit billable usage across a workspace and all of its sub-accounts during each billing period.


🛠️ Improvements

Slack Human Assist for Chat

Enhances Live Assist for Slack-integrated Chat channels with configurable AI-to-human handoff behaviors. Teams can tailor how AI and human agents collaborate in conversations, enabling more flexible support workflows.


SMS Delivery Management

Identifies contacts with permanently invalid phone numbers and prevents future outbound SMS from being sent to them.


Long-Running MCP Tool Support

MCP tools can now run asynchronously, allowing AI Agents to continue working with external services that require longer processing times.


Slack Channel Selection

Slack configuration is now easier by replacing manual channel ID entry with a searchable channel selector.


HAPPA Framework Configuration

The HAPPA framework can now be configured at both the Agent and Block levels, giving users greater control over how AI instructions are applied


Usage Threshold Email Notifications

Workspace owners now receive automated email notifications as usage approaches important billing milestones.


Dashboard

  • Dashboard loading has been significantly improved for workspaces with high volumes of conversations and activity.
  • Expanded Dashboard analytics with additional performance metrics, including Opt-out Count and Opt-out %, along with new percentage-based charts to help teams monitor customer engagement more effectively.

Sessions

  • Improved Session page loading performance
  • Response logs are now displayed on the corresponding AI message instead of the user message

Agent Template Creation

Creating Agents from templates now intelligently avoids creating duplicate reusable assets whenever matching resources already exist.


User Interface

Improved filter label readability for better visual clarity throughout the application.


🛠️ Fixed

Campaigns

  • SMS validation: fixed outbound campaign validation for invalid phone numbers before sending
  • Fixed an issue where Send All campaigns were limited to sending only 1,000 recipients per operation. Campaigns now support sending up to 10,000 recipients in a single batch

Sessions

  • Fixed an issue where copied Session links could become invalid if copied before the conversation had fully loaded.
  • Fixed slow loading when opening Session pages, resulting in a more responsive experience.
  • Fixed transcript exports where inbound email content could be incorrectly split into multiple rows.
  • Fixed an issue where the Email Format Text Markdown/HTML parser didn’t render rich text correctly in the UI.
  • Fixed an issue where HTML entities were displayed as raw text in Session messages

Agents

  • Fixed Agent cards that could intermittently stop displaying connected tools and version information after page refreshes.
  • Fixed an issue where Agent version logs showed only the 10 most recent versions.

Knowledge

Updated content length to 50 characters for Content knowledge entries.


Forms

Fixed an issue where form submissions did not update the Contact First Name and Last Name


Personas

Fixed an issue where the “No Personas” empty state was briefly displayed while the Personas list was refreshing.


SMS Consent

Fixed an issue where SMS opt-out status from Twilio could become out of sync with MagicBlocks.


📊 Release Summary

Total New Features: 2

Total Improvements: 10

Total Fixes: 11

Major Themes

  • AI Message Pricing & Billing
  • Workspace Cost Management
  • Slack Human Assist
  • MCP & AI Agent Enhancements
  • Session Experience & Observability
  • Dashboard Analytics
  • Campaign & SMS Reliability

Top 5 Most Impactful Changes

  1. AI Message-Based Pricing — New pricing plans with monthly AI message allowances.
  2. Monthly Workspace Spend Cap — Set monthly spending limits to control billable usage.
  3. Enhanced Slack Human Assist — More flexible AI-to-human handoff workflows in Slack.
  4. Long-Running MCP Tool Support — Reliable asynchronous execution for long-running MCP tools.
  5. Enhanced Dashboard Analytics — New metrics and charts for better performance visibility.