MarsEdit Updates & Release Notes

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25 updates curated from 1 source by the Releasebot Team. Last updated: Aug 13, 2026

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  • Aug 12, 2026
    • Date parsed from source:
      Aug 12, 2026
    • First seen by Releasebot:
      Aug 13, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4.5

    MarsEdit improves live preview, typing, scrolling, and Markdown rendering while fixing a wide range of publishing, authentication, crash, memory, and display bugs. The update also adds better HTTPS security and Tumblr-specific fixes for privacy, phrases, and photo handling.

    • Reduced flickering and reloading of embedded content in the live preview window
    • Dramatically improved typing and scrolling performance in plain text mode with long posts
    • Improvements to problems that could cause sections of text to have stale syntax highlighting
    • Markdown list notation that uses only 2 or 3 spaces per indent is now rendered correctly in the live preview
    • Restored expected behavior when preview content is “pinned” to the bottom while writing a long post
    • Restored the ability to use the space key in the main post list to scroll through posts one at a time
    • Fixed a bug that could cause long text values to truncate instead of growing the pertinent text field
    • Fixed a bug that could cause successful blog refreshes after a failed one to fail to save to disk
    • Fixed a bug that could cause a post to publish twice if a network connection drop occurred during posting
    • Fixed a bug that could cause an authentication panel to appear repeatedly after canceling it
    • Fixed a bug that caused the wrong post to be opened when double clicking shortly after changing the selected blog
    • Fixed multiple bugs that could cause a crash when the server returns an unexpected result
    • Fixed a number of memory over-usage problems
    • Fixed a bug where dragging the last “Published” image from the Media window failed to add the image to the targeted post
    • Fixed a bug that could cause a toolbar icon to appear with inverted colors
    • Improved security when the server tries to redirect from an HTTPS to an HTTP URL
    • Posts whose date can't be parsed no longer display and sort as January 1, 2001
    • The Crash Reporter now avoids re-submitting old crash logs when the app terminates unexpectedly
    • Tumblr specific improvements
      • Fixed a bug that caused posts set as “Private” to be set as “Draft” instead
      • Fixed a bug that could cause posts containing certain phrases to signal a connection error
      • Photos attached to a Tumblr post are no longer silently dropped when publishing needs to authenticate or retry
    Original source
  • Jul 21, 2026
    • Date parsed from source:
      Jul 21, 2026
    • First seen by Releasebot:
      Jul 24, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4.4

    MarsEdit fixes GIF preview, new post sidebar options, crash protection, and memory issues.

    • Animated GIFs are now shown with animation in the Upload Utility preview

    • When pasting an image, if animated GIF and TIFF data are both available, the animated item is now preferred

    • Fixed an issue that caused some changed sidebar options such as author and pingbacks not to be set correctly on new posts

    • Protected against a crash when running on an upcoming release of macOS

    • Fixed some memory over-usage issues

    Original source
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  • Mar 27, 2026
    • Date parsed from source:
      Mar 27, 2026
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4.3

    MarsEdit restores Upload Utility window functionality.

    Restored functionality of the "Upload Utility" window

    Original source
  • Mar 26, 2026
    • Date parsed from source:
      Mar 26, 2026
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4.2

    MarsEdit improves syncing, restores the photo icon, and fixes edited date, crash reporter, and menu bugs.

    Extended the syncing of spell check options to more text fields in the app

    Restored the photo icon to the Micropost panel's image-choosing button

    Fixed a bug that caused published posts to show the wrong "Edited Date"

    Fixed the punctuation and placement of buttons in the crash reporter

    Removed non-applicable Move and Rename menu items

    Original source
  • Mar 18, 2026
    • Date parsed from source:
      Mar 18, 2026
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4.1

    MarsEdit fixes a Version 5.4 bug that caused edits to existing posts to publish as new posts.

    Fix a bug from Version 5.4 that caused edits to existing posts to publish as new posts

    Original source
  • Similar to MarsEdit with recent updates:

  • Mar 17, 2026
    • Date parsed from source:
      Mar 17, 2026
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.4

    MarsEdit fixes Mac editing and publishing issues, restores expected Versions and Revert to behavior, improves the Send to MarsEdit share extension, and smooths out Markdown, Tumblr, Dark Mode, WordPress, and sidebar animation bugs.

    Standard macOS "Versions" now work as expected with "Revert to" menu item

    The "Send to MarsEdit" share extension now supports sending text to MarsEdit

    Fixed a bug that removed images from Tumblr posts published with Micro Post panel

    Fixed a couple syntax coloring bugs affecting Markdown in the plain text editor

    Fixed a bug that allowed styled text to be pasted into the Find & Replace text fields

    Fixed an issue that could cause a drawing glitch in the plain text editor after deleting text

    Fixed a flash of white when opening a post in Rich Text editor in Dark Mode

    Improved handling of WordPress permission errors when the blog is not English language

    Restored animation when closing the Options side panel

    Original source
  • Jan 12, 2026
    • Date parsed from source:
      Jan 12, 2026
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.12

    MarsEdit fixes Rich Text editor bugs, a blank overlay window issue, a server-response crash, and status bar behavior.

    Fixed a bug that caused font panel changes not to be registered as expected in the Rich Text editor

    Fixed a bug that caused a blank "overlay" window to appear below title field

    Fixed a crash that could occur when processing an unexpected response from the blog server

    Removed an unnecessary animated hiding of the status bar when opening a new document

    Original source
  • Nov 28, 2025
    • Date parsed from source:
      Nov 28, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.10

    MarsEdit fixes a crash, improves tag autocomplete performance, and refines editor field resizing and enclosure removal.

    Fixed a crash that could occur when closing a post document

    Improved performance when autocompleting tags from a large list of previously used terms

    Most text fields in the post editor, including Title, now grow vertically as needed to their text

    Fix a bug introduced in Version 5.3.8 that prevented these resizing fields from adapting to window size changes

    Clearing the content of the Enclosure panel now completely removes the enclosure from the post

    Original source
  • Oct 4, 2025
    • Date parsed from source:
      Oct 4, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.8

    MarsEdit fixes macOS 26 icon styling, restores NetNewsWire sharing, and resolves website icon and garbled text bugs.

    Updated the icon to fit the expected macOS 26 style

    Fix a bug that prevented the website icon for a blog from being downloaded correctly

    Restore integration with NetNewsWire "Share" functionality

    Address an issue that caused garbled text in some editing fields when running the latest macOS

    Original source
  • Sep 16, 2025
    • Date parsed from source:
      Sep 16, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.7

    MarsEdit fixes HTML formatting selection and an image disappearing bug after Upload Now.

    Restore proper selection of interior of HTML tags when applying formatting macros

    Fix a bug that caused images to disappear from a post after choosing to "Upload Now"

    Original source
  • Sep 13, 2025
    • Date parsed from source:
      Sep 13, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.6

    MarsEdit fixes a 5.3.5 browser integration issue.

    Quick fix to an issue with 5.3.5 that broke browser integration functionality

    Original source
  • Sep 12, 2025
    • Date parsed from source:
      Sep 12, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.5

    MarsEdit improves launch speed, adds multi-post Duplicate Post, and fixes crashes and layout issues.

    Improvements to launch time performance

    "Duplicate Post" can now be invoked to duplicate more than one selected post

    Fix a crash that could occur when opening the main window or document sidebars

    Minor layout fixes in the Media Manager window

    Original source
  • Apr 14, 2025
    • Date parsed from source:
      Apr 14, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.4

    MarsEdit improves performance and fixes crashes, UI glitches, and AppleScript post indexing issues.

    Improved performance of handling blogs with large numbers of posts

    Fix a crash when opening Settings with no blog selected

    Fix misplaced text, overlapping the buttons in the "Add Blog" window

    Fix an issue that could cause the plain text editor to crash while editing very large posts

    Fix a bug that could cause the wrong value for Micropost tags and category defaults to show

    Fix AppleScript references to posts by index

    Original source
  • Mar 10, 2025
    • Date parsed from source:
      Mar 10, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.3

    MarsEdit improves Micro.blog Excerpt editing, fixes crashes and text entry bugs, and makes bookmarklets, login handling, and rate-limit retries more reliable. It also cleans up the New Blog panel and refines AppleScript post results.

    Enabled the Excerpt field on Micro.blog blogs to edit “Summary” text

    Fix a crash that could occur when editing long lines in the plain text editor

    Fix a bug that prevented the JavaScript browser bookmarklet from working on some sites

    Fix a bug that caused duplicated text when using dictation in rich text

    Differentiate errors from Jetpack about IP address being flagged from regular login failures

    Handle "Too Many Requests" responses more intelligently, retrying after the recommended delay if possible

    Fix a bug that could cause the "New Blog" panel to get very tall and not shrink again

    Fix a bug that prevented the non-Safari browser bookmarklet from working on some sites

    Remove media assets from the list of "posts" returned by AppleScript

    Original source
  • Feb 2, 2025
    • Date parsed from source:
      Feb 2, 2025
    • First seen by Releasebot:
      Jun 30, 2026
    Red Sweater logo

    MarsEdit by Red Sweater

    MarsEdit 5.3.2

    MarsEdit fixes crashes when adding blogs or handling bad blog URLs during autoconfiguration failures.

    Fix a crash that could occur when a bad URL is provided for a blog

    Fix a crash that could occur when adding a blog if autoconfiguration failed

    Original source
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