{"id":51360,"date":"2026-03-25T13:18:08","date_gmt":"2026-03-25T17:18:08","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=51360"},"modified":"2026-04-16T11:06:41","modified_gmt":"2026-04-16T15:06:41","slug":"macos-26-4","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2026\/03\/25\/macos-26-4\/","title":{"rendered":"macOS 26.4"},"content":{"rendered":"<p><a href=\"https:\/\/www.macrumors.com\/2026\/03\/24\/macos-tahoe-26-4-now-available\/\">Juli Clover<\/a> (<a href=\"https:\/\/support.apple.com\/en-us\/122868\">release notes<\/a>, <a href=\"https:\/\/support.apple.com\/en-us\/126794\">security<\/a>, <a href=\"https:\/\/support.apple.com\/en-us\/124963\">enterprise<\/a>, <a href=\"https:\/\/developer.apple.com\/documentation\/macos-release-notes\/macos-26_4-release-notes\">developer<\/a>, <a href=\"https:\/\/swcdn.apple.com\/content\/downloads\/48\/33\/122-10756-A_YQ9DW48PY4\/y7tlsqmgdnno1pkaf137h2l3gmq0t0ywaz\/InstallAssistant.pkg\">full installer<\/a>, <a href=\"https:\/\/updates.cdn-apple.com\/2026WinterFCS\/fullrestores\/122-00766\/062A6121-2ABE-45D7-BCB1-72B666B6D2C2\/UniversalMac_26.4_25E246_Restore.ipsw\">IPSW<\/a>):<\/p>\n<blockquote cite=\"https:\/\/www.macrumors.com\/2026\/03\/24\/macos-tahoe-26-4-now-available\/\">\n<p>macOS Tahoe  26.4 returns the compact tab bar option to Safari for those who prefer the slimmed down look, along with a new Charge Limit feature for the Mac so you can set a maximum charge level from 80 to 100 percent. It also adds new eight emoji characters, and it displays warnings for apps that will stop working in the future. Apple is ending support for Rosetta 2 after macOS 27, so app that are still using Rosetta will display a popup letting users know that the app won't work starting with macOS 28.<\/p>\n<p>macOS 26.4 also includes Apple Creator Studio for the Freeform app and it has the same Family Sharing change as iOS 26.4.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/www.reddit.com\/r\/MacOSBeta\/comments\/1r82ner\/264b_is_amazing\/\">Dangerous-Coat-9174<\/a>:<\/p>\n<blockquote cite=\"https:\/\/www.reddit.com\/r\/MacOSBeta\/comments\/1r82ner\/264b_is_amazing\/\">\n<p>They fixed so many things, my appreciation for the developers has been restored. I am so happy that compact tabs, many bugs that I was experiencing have been fixed, the battery limit is nice and I uninstalled aldente but i am wondering if i will need something for temperature limits because I use it in the Summer mostly. Did you notice any other fix or added feature that has not been posted yet? Also the shadow in the mission control thing has been removed thank god.<\/p>\n<\/blockquote>\n\n<p>See also <a href=\"https:\/\/mrmacintosh.com\/macos-tahoe-26-4-update-everything-you-need-to-know\/\">Mr. Macintosh<\/a> and <a href=\"https:\/\/eclecticlight.co\/2026\/03\/24\/what-has-changed-in-macos-tahoe-26-4\/\">Howard Oakley<\/a>.<\/p>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2026\/03\/17\/macos-26-3-1-a\/\">macOS 26.3.1 (a)<\/a><\/li>\n<\/ul>\n\n<p id=\"macos-26-4-update-2026-03-26\">Update (<a href=\"#macos-26-4-update-2026-03-26\">2026-03-26<\/a>): <a href=\"https:\/\/www.macrumors.com\/2026\/03\/25\/macos-tahoe-26-4-slow-charger-macbooks\/\">Tim Hardwick<\/a>:<\/p>\n<blockquote cite=\"https:\/\/www.macrumors.com\/2026\/03\/25\/macos-tahoe-26-4-slow-charger-macbooks\/\">\n<p>As described in an updated <a href=\"https:\/\/support.apple.com\/en-us\/102397\">Apple support document<\/a>, a &ldquo;Slow Charger&rdquo; label now appears in orange text in the battery status menu and above the Battery Level graph in Battery settings. The indicator is accompanied by an info button for more details.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/daringfireball.net\/linked\/2026\/03\/26\/macos-26-4-slow-charger-warning\">John Gruber<\/a>:<\/p>\n<blockquote cite=\"https:\/\/daringfireball.net\/linked\/2026\/03\/26\/macos-26-4-slow-charger-warning\">\n<p>After I posted <a href=\"https:\/\/daringfireball.net\/linked\/2025\/10\/16\/m5-mbp-no-power-adapter-in-europe\">this item back in October<\/a> about the new MacBook Pros not shipping with chargers anywhere in Europe (not just the EU, even though it&rsquo;s <a href=\"https:\/\/en.wikipedia.org\/wiki\/Radio_Equipment_Directive_%282022%29\">an EU law<\/a> that requires products to be available without included chargers), a bunch of readers regaled me with tales of a family member complaining about their MacBook losing battery life even while plugged in, only to discover that they were using wimpy 5- or 10-watt USB-C adapters.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/www.macrumors.com\/2026\/03\/25\/macos-26-4-terminal-security-feature\/\">Joe Rossignol<\/a>:<\/p>\n<blockquote cite=\"https:\/\/www.macrumors.com\/2026\/03\/25\/macos-26-4-terminal-security-feature\/\">\n<p>macOS Tahoe 26.4 introduces a new security feature that warns Mac users if they paste certain commands in the Terminal app that may be harmful.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/forums.macrumors.com\/threads\/macos-26-4-introduces-new-security-feature-for-terminal-commands.2479927\/?post=34508643#post-34508643\">klasma<\/a>:<\/p>\n<blockquote cite=\"https:\/\/forums.macrumors.com\/threads\/macos-26-4-introduces-new-security-feature-for-terminal-commands.2479927\/?post=34508643#post-34508643\"><p>It would be helpful if the dialog actually showed what is being pasted, so that the user could decide whether they want to &ldquo;Paste Anyway&rdquo;&#8230;<\/p><\/blockquote>\n\n<p><a href=\"https:\/\/forums.macrumors.com\/threads\/macos-26-4-introduces-new-security-feature-for-terminal-commands.2479927\/?post=34508748#post-34508748\">Starfia<\/a>:<\/p>\n<blockquote cite=\"https:\/\/forums.macrumors.com\/threads\/macos-26-4-introduces-new-security-feature-for-terminal-commands.2479927\/?post=34508748#post-34508748\">\n<p>What kind of a Mac alert title is &ldquo;Possible malware, Paste blocked&rdquo;? A comma splice with incorrect capitalization?<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/mastodon.social\/@ChrisPirillo\/116285663110335564\">Chris Pirillo<\/a>:<\/p>\n<blockquote cite=\"https:\/\/mastodon.social\/@ChrisPirillo\/116285663110335564\">\n<p>Apple has to resort to malware tactics to try to trick you into upgrading to Tahoe. This is user hostile. Shameful behavior.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/x.com\/patrickwardle\/status\/2036896396893442513\">Patrick Wardle<\/a>:<\/p>\n<blockquote cite=\"https:\/\/x.com\/patrickwardle\/status\/2036896396893442513\">\n<p>Did \n@Apple\n forget to update the public Endpoint Security header files in macOS 26.4?<\/p>\n<p>New ES events still marked: <code>ES_EVENT_TYPE_RESERVED_*<\/code> &#x1F622;&#x1F624;<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/derflounder.wordpress.com\/2026\/03\/25\/disabling-rosetta-awareness-messages-on-macos-tahoe\/\">Rich Trouton<\/a>:<\/p>\n<blockquote cite=\"https:\/\/derflounder.wordpress.com\/2026\/03\/25\/disabling-rosetta-awareness-messages-on-macos-tahoe\/\">\n<p>This new message may not be desirable to display in all Mac environments, so Apple has provided management options to prevent this message from being shown. For more details, please see below the jump.<\/p>\n<p><\/p>\n<p>The relevant preference domain and key values are below:<\/p>\n<ul>\n<li>Preference domain: <strong>com.apple.applicationaccess<\/strong><\/li>\n<li>Key: <strong>allowRosettaUsageAwareness<\/strong><\/li>\n<li>Value: Boolean<\/li>\n<\/ul>\n<p><\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/scriptingosx.com\/2026\/03\/macos-26-4-brings-more-default-app-confirmation-prompts\/\">Armin Briegel<\/a>:<\/p>\n<blockquote cite=\"https:\/\/scriptingosx.com\/2026\/03\/macos-26-4-brings-more-default-app-confirmation-prompts\/\">\n<p>In macOS 26.4 Apple has added user confirmation prompts to <em>all<\/em> file type\/UTI default app changes.<\/p>\n<\/blockquote>\n\n<p id=\"macos-26-4-update-2026-03-30\">Update (<a href=\"#macos-26-4-update-2026-03-30\">2026-03-30<\/a>): <a href=\"https:\/\/bsky.app\/profile\/did:plc:n26uge5dhwhq7lskqadwx7vx\/post\/3mhte6z4me22b\">George Black<\/a>:<\/p>\n<blockquote cite=\"https:\/\/bsky.app\/profile\/did:plc:n26uge5dhwhq7lskqadwx7vx\/post\/3mhte6z4me22b\">\n<p>Tahoe 26.4 fixes the Liquid Mud issue in the Settings search bar!<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/mastodon.scot\/@mattgemmell\/116289053673701967\">Matt Gemmell<\/a>:<\/p>\n<blockquote cite=\"https:\/\/mastodon.scot\/@mattgemmell\/116289053673701967\">\n<p>macOS 26.4 seems to remount unmounted drives when unlocking the screen. Apple keeps finding new ways to make me dread every update and its bizarre bugs.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/eclecticlight.co\/2026\/03\/30\/why-the-macos-26-4-update-appears-to-freeze\/\">Howard Oakley<\/a>:<\/p>\n<blockquote cite=\"https:\/\/eclecticlight.co\/2026\/03\/30\/why-the-macos-26-4-update-appears-to-freeze\/\">\n<p>The macOS 26.4 update for Apple silicon Macs was large, and the work required to verify its contents and complete its preparation was incorrectly reported in both percent completion and time remaining. Even in smaller updates, some form of progress needs to be shown in the progress bar during these later stages of preparation, or users may be mislead into thinking the update has frozen or failed, and could for example restart their Mac to try updating again.<\/p>\n<\/blockquote>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2026\/03\/27\/macos-26-4s-script-editor-wont-open-some-older-applescripts\/\">macOS 26.4&rsquo;s Script Editor Won&rsquo;t Open Some Older AppleScripts<\/a><\/li>\n<\/ul>\n\n<p id=\"macos-26-4-update-2026-03-31\">Update (<a href=\"#macos-26-4-update-2026-03-31\">2026-03-31<\/a>): <a href=\"https:\/\/www.cultofmac.com\/news\/macos-tahoe-26-4-breaks-time-machine-network-backups\">Rajesh Pandey<\/a>:<\/p>\n<blockquote cite=\"https:\/\/www.cultofmac.com\/news\/macos-tahoe-26-4-breaks-time-machine-network-backups\">\n<p>macOS Tahoe 26.4 brings several new features to Macs. But it also breaks one critical functionality: Time Machine backups.<\/p>\n<p>The bug appears to affect backups over network drives and NAS (network-attached storage), causing them to fail with a credential error.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/x.com\/eternalstorms\/status\/2038872805794513018\">Matthias Gansrigler-Hrad<\/a>:<\/p>\n<blockquote cite=\"https:\/\/x.com\/eternalstorms\/status\/2038872805794513018\">\n<p>I wonder why I&rsquo;m able to force quit apps that aren&rsquo;t even running &#x1F914; &#x1F923;<\/p>\n<\/blockquote>\n\n<p id=\"macos-26-4-update-2026-04-16\">Update (<a href=\"#ending-macos-intel-support-update-2026-04-16\">2026-04-16<\/a>): <a href=\"https:\/\/mastodon.social\/@rosyna\/116409295965139768\">Rosyna Keller<\/a>:<\/p>\n<blockquote cite=\"https:\/\/mastodon.social\/@rosyna\/116409295965139768\">\n<p>I&rsquo;m getting false positive warnings on Apple Silicon apps not being supported on future versions of macOS. But this app, SQLPro for SQLite, is a fat app. The only thing it has is an x64 subprocess for a Legacy Color Picker extension, which is automatic launch by AppKit and is entirely Apple&rsquo;s code!<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Juli Clover (release notes, security, enterprise, developer, full installer, IPSW): macOS Tahoe 26.4 returns the compact tab bar option to Safari for those who prefer the slimmed down look, along with a new Charge Limit feature for the Mac so you can set a maximum charge level from 80 to 100 percent. It also adds [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2026-03-25T17:18:12Z","apple_news_api_id":"6a7f7684-0a37-46e0-a4fd-ec40231e6e43","apple_news_api_modified_at":"2026-04-16T15:06:47Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAABQ==","apple_news_api_share_url":"https:\/\/apple.news\/Aan92hAo3RuCk_exAIx5uQw","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[2018,1015,2785,30,2303,2742,504,1670,280,1025,103,318,216],"class_list":["post-51360","post","type-post","status-publish","format-standard","hentry","category-technology","tag-endpoint-security","tag-family-sharing","tag-liquid-glass","tag-mac","tag-macos-release","tag-macos-tahoe-26","tag-malware","tag-pasteboard","tag-power","tag-rosetta","tag-safari","tag-terminal","tag-timemachine"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=51360"}],"version-history":[{"count":7,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51360\/revisions"}],"predecessor-version":[{"id":51600,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51360\/revisions\/51600"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=51360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=51360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=51360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}