# Mimestream 1.10.6 — Version 1.10.6

- Product: Mimestream (https://whatsnew.fyi/product/mimestream)
- Vendor: Mimestream
- Date: 2026-07-29
- Version: 1.10.6
- Original notes: https://mimestream.com/appcast.xml
- Permalink: https://whatsnew.fyi/product/mimestream/releases/1.10.6
- Labels: Platforms: macOS

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Opening attachments sometimes results in an error on macOS 26.6
- **added** — Lightning-fast notifications with Mimestream Private Push, now enabled by default on macOS 26 and later
- **added** — Optional All profile to view all accounts in a unified inbox while keeping profiles organized
- **added** — Messages from unknown senders now show the sender's full email address inline
- **added** — Configurable notification banner action to choose Archive, Trash, or a menu of options
- **added** — What's New sheet to inform users about improvements
- **changed** — Adaptive cache management re-enabled by default for all users
- **changed** — Support for Google account email address changes
- **changed** — Use magic links to open Mimestream account management page without manual sign-in
- **changed** — Expanding synchronized range pulls in more messages
- **changed** — Improved throughput of Gmail API queries
- **changed** — New top-level settings tab for Notifications
- **changed** — New top-level settings tab for Profiles
- **changed** — Text size setting can now go larger than before
- **changed** — Tracking prevention improved to pass all emailprivacytester.com tests
- **changed** — Accounts can now have None as a profile selection
- **changed** — Each label now maintains a separate sync window, solving longstanding message list consistency issues when Adaptive Cache Management is enabled
- **fixed** — Typed content in some drafts fails to save in rare circumstances
- **fixed** — Messages don't appear in the Primary Inbox when they have multiple category labels
- **fixed** — Opening a pre-existing draft can get stuck with a Downloading overlay in rare circumstances

This update contains an important compatibility fix for macOS 26.6.
Lightning-fast notifications with Mimestream Private Push
Get lightning-fast notifications of new email with Mimestream Private Push, now enabled by default on macOS 26 and later. Its privacy-focused architecture means our service never receives your Google OAuth credentials and cannot read your email or see message content.
If an account needs to be upgraded, open Settings and Mimestream will guide you through it. [Learn more about Private Push](https://mimestream.com/trust/private-push) in our Trust Center.
Optional “All” profile
Mimestream has always let you choose between seeing all of your accounts in a unified inbox or keeping them separated with profiles. With the new optional All profile, you can do both: keep your profiles organized and switch to All whenever you want a unified view.
See addresses for unknown senders
Messages from unknown senders now show the sender’s full email address inline, so it’s easier to see who’s writing.
Configurable notification banner action
Choose the default action for notification banners, including Archive, Trash, or a menu of options.
🚀 Other New Features
- Added a "What's New" sheet to inform users about improvements
✨ Improved
- Adaptive cache management re-enabled by default for all users
- Support for Google account email address changes
- Use magic links to open Mimestream account management page without manual sign-in
- Expanding synchronized range pulls in more messages
- Improved throughput of Gmail API queries
- New top-level settings tab for Notifications
- New top-level settings tab for Profiles
- The text size setting can now go larger than before
- Tracking prevention improved to pass all emailprivacytester.com tests
- Accounts can now have "None" as a profile selection
- Each label now maintains a separate sync window, solving longstanding message list consistency issues (when "Adaptive Cache Management" is enabled in Advanced settings)
🔧 Fixed
- (macOS 26.6) Opening attachments sometimes results in an error
- Typed content in some drafts fails to save in rare circumstances
- Messages don't appear in the Primary Inbox when they have multiple category labels
- Opening a pre-existing draft can get stuck with a Downloading overlay in rare circumstances
- Selecting a folder with an insufficient number of visible threads doesn't automatically expand the synchronized range
- The "Join Google Meeting" link renders twice on load
- Signing in to a Google account can fail with a vague "Unable to connect" error
- Drafts can go into infinite syncing loop
- Some messages don't reformat correctly in dark mode
- Category inbox toggles jumble around during the onboarding transition animation
- Inbox unread counts sometimes get stuck and stop updating
- Sharing videos to Mimestream sometimes fails
- Order of attachments in quicklook preview panel doesn't match message
- Some names aren't parsed correctly for the message list recipient list
- When sending to an Apple Contacts Group, preferred address isn't respected
- Crash when opening messages from notifications
- Forwarding messages may not include attachments that haven't completed downloading yet
- Signature content entered in the new signature sheet sometimes isn't saved
- Per-message context menu doesn't have a way to forward as attachment
- Conversation keeps jumping to top when scrolling down while message is still loading
- Subscription view sometimes missing the Purchase button
- Unified Inbox doesn't show enough content after upgrading to 1.10
- Inbox unread counts may be incorrect when no categories are enabled
- Clicking on a new message notification can result in message being auto-deselected
- Selected message gets deselected in Inbox with Unread filter enabled
- Beginning a search dispatches redundant queries
- Sending feedback crashes when there are no enabled accounts
- High CPU utilization when refreshing the message list with a large cache
- High CP

_[Truncated at 4000 characters — full notes: https://mimestream.com/appcast.xml]_