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Its Mac desktop application helps teams organize conversations, files and connected tools by workspace and channel. It suits organizations, project teams and communities that want searchable discussions and coordinated work across devices.\n\n## Features\n- Channels and direct messages with threaded conversations, mentions and reactions.\n- Search accessible messages and files within workspace permissions and plan limits.\n- Notifications, status and multiple-workspace navigation for day-to-day collaboration.\n- Huddles for live audio\u002Fvideo and screen sharing where available.\n- Canvases, lists and workflow automation for shared information and processes.\n- Apps, external collaboration and optional AI capabilities subject to workspace settings and plan entitlements.\n\n## Install and sign in\nInstall `brew install --cask slack`, or download the official Mac DMG matching Apple Silicon or Intel, open it and copy Slack.app to Applications. Launch Slack and sign in to an existing workspace or follow the invitation\u002Faccount setup. Organizations can require single sign-on, approved devices or administrator-managed installation. Installing the desktop app does not create access to a workspace or bypass its policies. Slack is also available through the Mac App Store; use the update mechanism appropriate for the distribution you installed.\n\n## Current system and platform support\nThe official current requirements specify macOS13+ and Slack desktop4.44+. Apple Silicon and Intel downloads are separate choices. Windows support currently lists Windows11 version23H2+ or WindowsServer2016; Linux support lists UbuntuLTS22.04+ or RedHatEnterpriseLinux9+. Mobile requirements currently list iOS17+ or Android11+ with GooglePlayServices installed by default. Slack also offers browser access, with version requirements and huddle support that differ by browser. This cask installs the Mac client, not the other platform builds.\n\nThe official Apple Silicon4.52.178 DMG is124,496,038 bytes, confirmed by its HTTP Content-Length. Download size is distinct from installed app, local caches and downloaded files. No fixed RAM or disk minimum was confirmed in the retrieved system-requirements article. Slack revises its support requirements twice yearly; consult the current lifecycle before relying on an old client or OS.\n\n## Dependencies, conflicts and integration\nThe cask explicitly conflicts with slack@beta and declares no extra formula dependency. An internet connection and workspace account are needed for service access. Notifications require the applicable macOS permission; microphone, camera and screen sharing require the appropriate system permissions when used. External tools and apps have their own authorization and accounts. Corporate proxies, firewall policies, VPNs and device-management rules may affect sign-in and connectivity.\n\nWorkspace owners control membership, retention, apps, external sharing and security settings. Local cleanup does not delete a cloud workspace, its messages or your account. Homebrew zap may remove local application support, caches, preferences, containers, logs and saved state; inspect it before deleting local files or cached data. Export, retention and recovery options depend on policy and plan, so do not treat a local cache as the team's authoritative backup.\n\n## Accounts, pricing and licensing\nAn account and workspace membership are required. The Mac installer is free; the Slack service has a Free plan and paid business\u002Fenterprise plans with different history, apps, meetings, automation, AI and administration entitlements. The current Free plan advertises90 days of searchable message history, up to10 apps and1:1 huddles. This is not unlimited history or unrestricted access to every feature. Regional prices, billing periods and organization contracts differ; check current plan terms before purchasing. Some integrations have independent fees.\n\nSlack is proprietary software and a hosted service governed by its customer\u002Fuser terms and applicable workspace policies. Open-source components or publicly available integration SDKs do not make the desktop client or hosted service open source. Follow your organization's information-sharing rules when posting files or enabling integrations and AI services.\n\n## Official references\n- [Mac downloads](https:\u002F\u002Fslack.com\u002Fdownloads\u002Fmac)\n- [System requirements](https:\u002F\u002Fslack.com\u002Fhelp\u002Farticles\u002F115002037526-System-requirements-for-using-Slack)\n- [Plans and limits](https:\u002F\u002Fslack.com\u002Fpricing)\n- [Mac release notes](https:\u002F\u002Fslack.com\u002Frelease-notes\u002Fmac)\n- [Legal terms](https:\u002F\u002Fslack.com\u002Fterms-of-service)\n","Team communication and collaboration software","Slack Technologies, a Salesforce company","Slack","8a5bd759b91478c19f23deef1f21b870a5c3c55b631e3341be32f1c297260331",124496038,"https:\u002F\u002Fdownloads.slack-edge.com\u002Fdesktop-releases\u002Fmac\u002Farm64\u002F4.52.178\u002FSlack-4.52.178-macOS.dmg","https:\u002F\u002Fformulae.brew.sh\u002Fcask\u002Fslack","https:\u002F\u002Fslack.com\u002F","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002Ffff0ab554a4d\u002Fdf74fe24be2c-256.png","brew install --cask slack",{"d30":80,"d365":81,"d90":82},3999,83509,18550,"cask",{"bodyMarkdown":85,"brewCommittedAt":86,"hasNotes":48,"id":87,"isLatest":48,"isPrerelease":52,"machineTranslated":52,"publishedAt":88,"sections":89,"source":95,"sourceLocale":96,"summary":97,"title":98,"translation":99,"version":101},"# Slack 4.52.178\n\nGeneral maintenance and bug fixes. The official Mac announcement does not name individual defects or new features.\n\n## Official announcement\n\nPublished October5,2026. The publisher describes code cleanup intended to keep the desktop app running smoothly. No specific bug, security vulnerability, API change or new feature is identified in this version entry; those details are not inferred from the version number.\n\n[Official Mac release notes](https:\u002F\u002Fslack.com\u002Frelease-notes\u002Fmac). The announcement is a general maintenance statement, so this summary preserves that limited scope.\n","2026-10-05T23:59:52Z",524,"2026-10-07T09:38:42.722922Z",[90],{"area":91,"items":92},"Maintenance",[93,94],"Official Mac release notes categorize this update as bug fixes.","No individual fixes or new features are disclosed for this version.","editorial","en-US","General maintenance and bug fixes. 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features.",{"locale":96,"machineTranslated":52,"sourceLocale":96,"status":100},{"arm64":48,"requiresRosetta":52,"status":579,"x86_64":48},"known",[71,581,582],"Salesforce","Huddles","homebrew\u002Fcask",null,[586,597,609,619,630],{"accentColor":587,"autoUpdates":48,"deprecated":52,"disabled":52,"displayName":588,"editorChoice":52,"iconUrl":589,"installs30d":590,"isFont":52,"isLibrary":52,"kind":83,"machineTranslated":52,"name":588,"primaryCategory":591,"rank30d":592,"sourceLocale":96,"summary":593,"token":594,"version":595,"versionChangedAt":596},"#5A66F6","Discord","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002F1b9df8882aaf\u002F988dc9328ee0-256.png",3632,{"icon":51,"machineTranslated":52,"name":53,"slug":54,"sourceLocale":55},54,"Community and group communication through servers, text channels, messages, voice\u002Fvideo calls and screen sharing, with optional paid Nitro benefits.","discord","0.0.415","2026-10-07T09:38:28.442235Z",{"accentColor":598,"autoUpdates":48,"deprecated":52,"disabled":52,"displayName":599,"editorChoice":52,"iconUrl":600,"installs30d":601,"isFont":52,"isLibrary":52,"kind":83,"machineTranslated":52,"name":602,"primaryCategory":603,"rank30d":604,"sourceLocale":96,"summary":605,"token":606,"version":607,"versionChangedAt":608},"#0A57F1","Zoom Workplace","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002F241ea332f9e3\u002Ff9ca510e4ed0-256.png",3678,"Zoom",{"icon":51,"machineTranslated":52,"name":53,"slug":54,"sourceLocale":55},53,"Meetings, Team Chat and collaboration tools in Zoom’s Mac client, with screen sharing and optional licensed Phone, recording and AI features.","zoom","7.2.2.88465","2026-10-07T09:38:44.668496Z",{"accentColor":610,"autoUpdates":48,"deprecated":52,"disabled":52,"displayName":611,"editorChoice":52,"iconUrl":612,"installs30d":613,"isFont":52,"isLibrary":52,"kind":83,"machineTranslated":52,"name":611,"primaryCategory":614,"rank30d":615,"sourceLocale":96,"summary":616,"token":617,"version":618,"versionChangedAt":608},"#02E459","WhatsApp","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002F73fc9d94e259\u002F2153fc4ec9e6-256.png",2860,{"icon":51,"machineTranslated":52,"name":53,"slug":54,"sourceLocale":55},69,"Official Mac client for linked WhatsApp chats, voice\u002Fvideo calls, group conversations and file sharing.","whatsapp","26.40.16",{"accentColor":620,"autoUpdates":48,"deprecated":52,"disabled":52,"displayName":621,"editorChoice":52,"iconUrl":622,"installs30d":623,"isFont":52,"isLibrary":52,"kind":83,"machineTranslated":52,"name":621,"primaryCategory":624,"rank30d":625,"sourceLocale":96,"summary":626,"token":627,"version":628,"versionChangedAt":629},"#8AA0FE","Microsoft Teams","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002Fbad519ad0d94\u002F627d651fde78-256.png",2345,{"icon":51,"machineTranslated":52,"name":53,"slug":54,"sourceLocale":55},89,"Chat, meetings, calling and collaboration across personal and work or school accounts, with plan-dependent features.","microsoft-teams","26261.303.5165.1465","2026-10-07T11:15:20.792558Z",{"accentColor":631,"autoUpdates":48,"deprecated":52,"disabled":52,"displayName":632,"editorChoice":52,"iconUrl":633,"installs30d":634,"isFont":52,"isLibrary":52,"kind":83,"machineTranslated":52,"name":632,"primaryCategory":635,"rank30d":636,"sourceLocale":96,"summary":637,"token":638,"version":639,"versionChangedAt":640},"#1398D9","Telegram for macOS","https:\u002F\u002Fcdn.opennavo.com\u002Ficons\u002Fuploads\u002F57900021cc21\u002Ff4f1f4517383-256.png",1594,{"icon":51,"machineTranslated":52,"name":53,"slug":54,"sourceLocale":55},119,"Native Mac Telegram client for cloud messaging, groups, channels and device-specific encrypted Secret Chats.","telegram","12.10,282985","2026-10-07T09:38:43.820266Z","\u003Cp>Slack is a cloud-based workplace communication and collaboration service from Slack Technologies, a Salesforce company. Its Mac desktop application helps teams organize conversations, files and connected tools by workspace and channel. It suits organizations, project teams and communities that want searchable discussions and coordinated work across devices.\u003C\u002Fp>\n\u003Ch3 class=\"on-md-heading-1\">Features\u003C\u002Fh3>\n\u003Cul>\n\u003Cli>Channels and direct messages with threaded conversations, mentions and reactions.\u003C\u002Fli>\n\u003Cli>Search accessible messages and files within workspace permissions and plan limits.\u003C\u002Fli>\n\u003Cli>Notifications, status and multiple-workspace navigation for day-to-day collaboration.\u003C\u002Fli>\n\u003Cli>Huddles for live audio\u002Fvideo and screen sharing where available.\u003C\u002Fli>\n\u003Cli>Canvases, lists and workflow automation for shared information and processes.\u003C\u002Fli>\n\u003Cli>Apps, external collaboration and optional AI capabilities subject to workspace settings and plan entitlements.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch3 class=\"on-md-heading-1\">Install and sign in\u003C\u002Fh3>\n\u003Cp>Install \u003Ccode>brew install --cask slack\u003C\u002Fcode>, or download the official Mac DMG matching Apple Silicon or Intel, open it and copy Slack.app to Applications. Launch Slack and sign in to an existing workspace or follow the invitation\u002Faccount setup. Organizations can require single sign-on, approved devices or administrator-managed installation. Installing the desktop app does not create access to a workspace or bypass its policies. Slack is also available through the Mac App Store; use the update mechanism appropriate for the distribution you installed.\u003C\u002Fp>\n\u003Ch3 class=\"on-md-heading-1\">Current system and platform support\u003C\u002Fh3>\n\u003Cp>The official current requirements specify macOS13+ and Slack desktop4.44+. Apple Silicon and Intel downloads are separate choices. Windows support currently lists Windows11 version23H2+ or WindowsServer2016; Linux support lists UbuntuLTS22.04+ or RedHatEnterpriseLinux9+. Mobile requirements currently list iOS17+ or Android11+ with GooglePlayServices installed by default. Slack also offers browser access, with version requirements and huddle support that differ by browser. This cask installs the Mac client, not the other platform builds.\u003C\u002Fp>\n\u003Cp>The official Apple Silicon4.52.178 DMG is124,496,038 bytes, confirmed by its HTTP Content-Length. Download size is distinct from installed app, local caches and downloaded files. No fixed RAM or disk minimum was confirmed in the retrieved system-requirements article. Slack revises its support requirements twice yearly; consult the current lifecycle before relying on an old client or OS.\u003C\u002Fp>\n\u003Ch3 class=\"on-md-heading-1\">Dependencies, conflicts and integration\u003C\u002Fh3>\n\u003Cp>The cask explicitly conflicts with slack@beta and declares no extra formula dependency. An internet connection and workspace account are needed for service access. Notifications require the applicable macOS permission; microphone, camera and screen sharing require the appropriate system permissions when used. External tools and apps have their own authorization and accounts. Corporate proxies, firewall policies, VPNs and device-management rules may affect sign-in and connectivity.\u003C\u002Fp>\n\u003Cp>Workspace owners control membership, retention, apps, external sharing and security settings. Local cleanup does not delete a cloud workspace, its messages or your account. Homebrew zap may remove local application support, caches, preferences, containers, logs and saved state; inspect it before deleting local files or cached data. Export, retention and recovery options depend on policy and plan, so do not treat a local cache as the team's authoritative backup.\u003C\u002Fp>\n\u003Ch3 class=\"on-md-heading-1\">Accounts, pricing and licensing\u003C\u002Fh3>\n\u003Cp>An account and workspace membership are required. The Mac installer is free; the Slack service has a Free plan and paid business\u002Fenterprise plans with different history, apps, meetings, automation, AI and administration entitlements. The current Free plan advertises90 days of searchable message history, up to10 apps and1:1 huddles. This is not unlimited history or unrestricted access to every feature. Regional prices, billing periods and organization contracts differ; check current plan terms before purchasing. Some integrations have independent fees.\u003C\u002Fp>\n\u003Cp>Slack is proprietary software and a hosted service governed by its customer\u002Fuser terms and applicable workspace policies. Open-source components or publicly available integration SDKs do not make the desktop client or hosted service open source. Follow your organization's information-sharing rules when posting files or enabling integrations and AI services.\u003C\u002Fp>\n\u003Ch3 class=\"on-md-heading-1\">Official references\u003C\u002Fh3>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fslack.com\u002Fdownloads\u002Fmac\" target=\"_blank\" rel=\"noopener noreferrer\">Mac downloads\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fslack.com\u002Fhelp\u002Farticles\u002F115002037526-System-requirements-for-using-Slack\" target=\"_blank\" rel=\"noopener noreferrer\">System requirements\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fslack.com\u002Fpricing\" target=\"_blank\" rel=\"noopener noreferrer\">Plans and limits\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fslack.com\u002Frelease-notes\u002Fmac\" target=\"_blank\" rel=\"noopener noreferrer\">Mac release notes\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fslack.com\u002Fterms-of-service\" target=\"_blank\" rel=\"noopener noreferrer\">Legal terms\u003C\u002Fa>\u003C\u002Fli>\n\u003C\u002Ful>\n"]