About Slack
Companies in every industry around the world grow their business in Slack because it gets busywork off their plates and wasteful meetings off their calendars. Slack brings everyone from coworkers, customers, and...
Companies in every industry around the world grow their business in Slack because it gets busywork off their plates and wasteful meetings off their calendars. Slack brings everyone from coworkers, customers, and contractors into one secure place, so you don’t have to chase approvals or wait around on emails. Slack even has AI that can search to find the information you need instantly and summarize conversations to catch you up with a click. Better yet, Slack makes it easy for anyone on your team to automate the small stuff, giving everyone more time to focus on the big picture. AKA, growing your business. COLLABORATE QUICKER. Work alongside teammates and external partners securely in Slack. . Connect with everyone: Invite vendors, customers, and contractors to work with you and your coworkers - all in one place. . Video chat face-to-face, from anywhere: Meet with teammates instantly through video conferencing, and discuss work live with screen sharing. . Crystal-clear communication: Use voice notes when text alone doesn’t cut it, ensuring complicated messages are better understood. . Stay organized: Keep project, customer, and product conversations in dedicated channels and documents. ACCESS YOUR KNOWLEDGE. Slack is where you can find every file, message, and decision. . Find anything, instantly: Our intelligent, AI-powered search understands context and saves you from digging around to find the answers you need to do your job.** . Collaborate on deliverables: Co-create marketing plans, product specs, and more in shared documents that live right next to your team’s conversations. . Streamline project execution: Track tasks, owners, and priorities with project management tools and lists that connect seamlessly to the rest of your work.* . Create consistent processes: Make sure every new project is set up to succeed with Slack-generated or custom-created* templates. . Capture meeting notes automatically: Let AI transcribe and summarize meeting notes for you in Slack, so you can focus on the conversation.** PERFECT EVERY PROCESS. Let Slack automations do your busywork for you. . Centralize your work: Connect to 2,600+ apps and focus just on Slack, including Google Drive, Dropbox, Asana, Zapier, Figma, Zendesk, and more. . Manage routine tasks: Approve PTO requests, manage your calendar, or update file permissions - all in one place (talk about convenient). . Stay on top of your to-dos: Manage your to-do list from your notepad to where you’re getting the rest of your work done. . Bring the power of Agentforce to your team: Access AI agents to respond to HR tickets, set team reminders, resolve IT issues, and much more.*** *Requires an upgrade to Slack Pro, Business+, or Enterprise. **Requires Slack AI add-on ***Requires Agentforce license from Salesforce
Version History Bug Fixes • Is there something strange in your neighborhood? iPad users were spooked to notice a ghostly white image in place of their newly-uploaded profile pictures. We knew who to call; this bug is now busted. 26.05.40 5d ago Bug Fixes • If mandatory two-factor authentication was enabled for a workspace, but an owner or admin had not yet set up their 2FA, the login screen would disappear when attempting to sign in using a magic link. This type of vanishing act isn't the sort people pay to see. Behold, the prestige: Magic link login screens have reappeared in their rightful place. 26.05.30 May 20 Bug Fixes • Callout sections in canvases can now be edited on mobile. The ink never dries on a Slack canvas — revise to your heart's delight, no matter the device in hand. 26.05.20 May 13 Bug Fixes • Don’t mind us — just making a few small adjustments to keep the app in tip-top shape. More to come soon. Cheerio! 26.05.10 May 7 Bug Fixes • If you were removed from a private channel where you had a message drafted, a "1" would remain stuck next to Drafts with no way to clear it. We'll hang on to that draft for you in case you re-join the channel, but we'll hide the notification in the meantime. • Those using the VoiceOver feature were unable to select or play audio clips. All voices deserve to be heard in Slack — this update brings harmony to the app. 26.04.50 Apr 29 Bug Fixes • Bugs were squashed, performance was improved, work was done, and the result was good. Please enjoy Slack responsibly. 26.04.40 Apr 22 Bug Fixes • All bugs that were fixed in this release were too small for the eye to see or too fiddly for human words to describe. Nevertheless, work was done, things tinkered with and the app became subtly better. 26.04.30 Apr 16 Bug Fixes • A little reminder as you go about your day: The world is a more unique place simply because you’re a part of it, and you’ve affected others in ways you can’t imagine. Oh, and no big changes to the app this time. Happy messaging! 26.04.20 Apr 8 Bug Fixes • Tapping "View in Browser" on remote files added via API was appending a "/" at the end of the URL, effectively breaking the link. Let us never underestimate the power of one small character to topple even the most complex systems. • Batch image uploads were broken in canvases, forcing you to upload one at a time. Sometimes it's rewarding to take the slower, more deliberate path toward accomplishing a goal — mindfully connecting with each individual element and savoring the satisfaction. Sometimes you just need to upload 20 photos at once. This was the latter. 26.04.10 Apr 1 Bug Fixes • What's black and white and (re)read all over? Your Slack messages — when conversations stayed unread on mobile even after you'd read them on desktop. This riddle of a bug is solved in our latest update. 26.03.40 Mar 25 Bug Fixes • We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.03.30 Mar 18 Bug Fixes • One of our menus didn't get the memo when it came to turning notifications on or off for a particular thread. Specifically, when tapping into a thread and selecting additional options (...), "Turn off notifications" was always visible, even after notifications had been disabled. Going forward, all unsubscribe requests will be honored, and records shall be updated accordingly. 26.03.20 Mar 11 Bug Fixes • iPhone-specific emoji (such as Animoji or Memoji) were failing to send within Slack. Please accept our sincerest apoloji. • Emoji were also occasionally not matching across desktop and mobile due to a localization issue. Our emoji interpreters have been working overtime to ensure this won't happen again. :ok_hand: :man-bowing: 26.03.10 Mar 4 Bug Fixes • The VoiceOver feature was glossing over certain details when announcing messages delivered via webhook. Going forward, its screen reading will be more thorough, helpful, and (dare we say it) accessible. • Returning to the main channel view after replying to a thread sometimes left a large, empty rectangle where the keyboard used to be. To put it in radio-friendly terms: We had a blank space, baby, and it was swiftly resolved. 26.02.40 Feb 25 Bug Fixes • We’ve tinkered with the internal workings and polished some rough edges. The app is now better than it was. 26.02.30 Feb 18 Bug Fixes • We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.02.21 Feb 13 Bug Fixes • We’ve sanded down some rough patches in the app so as to avoid any digital splinters. Did you know "digital splinters" were a thing? They are now, but they aren’t anything you’ll need to worry about. 26.02.20 Feb 11 Bug Fixes • Online indicators for guest accounts were in bad shape — that is, they weren't displaying their correct shapes (squares and triangles), defaulting instead to the familiar circle. We've quite literally squared the circle on this one, returning guest indicators to their proper geometric glory. • The mobile emoji picker wasn't taking into account your most frequently-used emoji on desktop, so if your favorite handshake reaction wasn't making the handoff to mobile, that one was on us. We promise not to let that happen again. Shake on it? • Different skin tones of the same emoji will once again be grouped together when reacting to a message. No matter our complexion, we're all one human family, even when represented as cartoon pictographs. 26.02.10 Feb 4 Bug Fixes • The filter option within the DMs tab was doing... nothing. It was ornamental, vestigial, and most definitely broken. We've filtered the offending code right out, and DMs are now A-OK. • Did you know you can send emails to a Slack channel? Pretty neat, huh? Did you also know that forwarding that message to a different channel within Slack would change your avatar to that of a bot and/or app? Notably less neat, we contend. Slack: Now with fewer identity crises. • Launching the app by tapping on a notification banner would sometimes cause channel headers and the "Back" button to be conspicuously absent. There are few things in life from which there is truly no return; go forth in Slack and know that you can always retrace your steps. • When two users had the same display name, we weren't showing their full names alongside in autocomplete menus. This gave the act of tagging someone in a message the same thrilling anxiety as greeting a person whose name you're only 50% sure you remember. Enjoy this fix, brought to you by Slack [Full Name: Slack Technologies, LLC]. 26.01.40 Jan 28 Bug Fixes • Shooting stars may be ephemeral, but starred conversations in Slack are forever — at least that was the buggy behavior folks experienced when they found they could not un-star channels and DMs on mobile. We thank our lucky stars (not to mention our mobile engineers) for this bug fix. • The "[Name] is typing..." indicator was not appearing within threads. Please take this message as indication that the bug has been fixed. 26.01.30 Jan 21 Bug Fixes • We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.01.20 Jan 14 Bug Fixes • We tweaked some things too small to notice or too difficult to explain. We’ll return you to your regular, more interesting types of release next time (we hope). 26.01.10 Jan 7 Bug Fixes • We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 25.12.20 12/10/2025 Bug Fixes • Apple VoiceOver was not able to select buttons anywhere in Slack outside of threads. Like your favorite cardigan, buttons and threads will, at times, be in need of repair. Here's a cozy thought: This bug has been all sewn up and tied off. • We dropped the ball on dropdown arrows, which were hovering awkwardly in the center of the screen instead of sitting politely on the side. The next time you need to expand a menu, you'll find the tappable button right where you expect it to be. • Dropdown menus were also not selecting the default value if you just pressed "Submit" without choosing anything. Perhaps it's a good reminder to always be intentional in our individual choices? Eh, probably just a bug. Our bad. 25.12.10 12/03/2025 Bug Fixes • We tidied the shelves, cleaned the windows and ran a white-gloved finger over every flat surface. Just a little routine maintenance to ensure that everything is shipshape. Full steam ahead! 25.11.30 11/20/2025
Previous Versions
Here you can find the changelog of Slack since it was posted on our website on 2016-09-22 16:21:42.
The latest version is 26.05.40 and it was updated on 2026-06-23 06:17:40. See below the changes in each version.
Slack version 26.05.40
Updated At: 2026-06-02
Changes: Version History Bug Fixes
• Is there something strange in your neighborhood? iPad users were spooked to notice a ghostly white image in place of their newly-uploaded profile pictures. We knew who to call; this bug is now busted. 26.05.40 5d ago Bug Fixes
• If mandatory two-factor authentication was enabled for a workspace, but an owner or admin had not yet set up their 2FA, the login screen would disappear when attempting to sign in using a magic link. This type of vanishing act isn't the sort people pay to see. Behold, the prestige: Magic link login screens have reappeared in their rightful place. 26.05.30 May 20 Bug Fixes
• Callout sections in canvases can now be edited on mobile. The ink never dries on a Slack canvas — revise to your heart's delight, no matter the device in hand. 26.05.20 May 13 Bug Fixes
• Don’t mind us — just making a few small adjustments to keep the app in tip-top shape. More to come soon. Cheerio! 26.05.10 May 7 Bug Fixes
• If you were removed from a private channel where you had a message drafted, a "1" would remain stuck next to Drafts with no way to clear it. We'll hang on to that draft for you in case you re-join the channel, but we'll hide the notification in the meantime.
• Those using the VoiceOver feature were unable to select or play audio clips. All voices deserve to be heard in Slack — this update brings harmony to the app. 26.04.50 Apr 29 Bug Fixes
• Bugs were squashed, performance was improved, work was done, and the result was good. Please enjoy Slack responsibly. 26.04.40 Apr 22 Bug Fixes
• All bugs that were fixed in this release were too small for the eye to see or too fiddly for human words to describe. Nevertheless, work was done, things tinkered with and the app became subtly better. 26.04.30 Apr 16 Bug Fixes
• A little reminder as you go about your day: The world is a more unique place simply because you’re a part of it, and you’ve affected others in ways you can’t imagine. Oh, and no big changes to the app this time. Happy messaging! 26.04.20 Apr 8 Bug Fixes
• Tapping "View in Browser" on remote files added via API was appending a "/" at the end of the URL, effectively breaking the link. Let us never underestimate the power of one small character to topple even the most complex systems.
• Batch image uploads were broken in canvases, forcing you to upload one at a time. Sometimes it's rewarding to take the slower, more deliberate path toward accomplishing a goal — mindfully connecting with each individual element and savoring the satisfaction. Sometimes you just need to upload 20 photos at once. This was the latter. 26.04.10 Apr 1 Bug Fixes
• What's black and white and (re)read all over? Your Slack messages — when conversations stayed unread on mobile even after you'd read them on desktop. This riddle of a bug is solved in our latest update. 26.03.40 Mar 25 Bug Fixes
• We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.03.30 Mar 18 Bug Fixes
• One of our menus didn't get the memo when it came to turning notifications on or off for a particular thread. Specifically, when tapping into a thread and selecting additional options (...), "Turn off notifications" was always visible, even after notifications had been disabled. Going forward, all unsubscribe requests will be honored, and records shall be updated accordingly. 26.03.20 Mar 11 Bug Fixes
• iPhone-specific emoji (such as Animoji or Memoji) were failing to send within Slack. Please accept our sincerest apoloji.
• Emoji were also occasionally not matching across desktop and mobile due to a localization issue. Our emoji interpreters have been working overtime to ensure this won't happen again. :ok_hand: :man-bowing: 26.03.10 Mar 4 Bug Fixes
• The VoiceOver feature was glossing over certain details when announcing messages delivered via webhook. Going forward, its screen reading will be more thorough, helpful, and (dare we say it) accessible.
• Returning to the main channel view after replying to a thread sometimes left a large, empty rectangle where the keyboard used to be. To put it in radio-friendly terms: We had a blank space, baby, and it was swiftly resolved. 26.02.40 Feb 25 Bug Fixes
• We’ve tinkered with the internal workings and polished some rough edges. The app is now better than it was. 26.02.30 Feb 18 Bug Fixes
• We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.02.21 Feb 13 Bug Fixes
• We’ve sanded down some rough patches in the app so as to avoid any digital splinters. Did you know "digital splinters" were a thing? They are now, but they aren’t anything you’ll need to worry about. 26.02.20 Feb 11 Bug Fixes
• Online indicators for guest accounts were in bad shape — that is, they weren't displaying their correct shapes (squares and triangles), defaulting instead to the familiar circle. We've quite literally squared the circle on this one, returning guest indicators to their proper geometric glory.
• The mobile emoji picker wasn't taking into account your most frequently-used emoji on desktop, so if your favorite handshake reaction wasn't making the handoff to mobile, that one was on us. We promise not to let that happen again. Shake on it?
• Different skin tones of the same emoji will once again be grouped together when reacting to a message. No matter our complexion, we're all one human family, even when represented as cartoon pictographs. 26.02.10 Feb 4 Bug Fixes
• The filter option within the DMs tab was doing... nothing. It was ornamental, vestigial, and most definitely broken. We've filtered the offending code right out, and DMs are now A-OK.
• Did you know you can send emails to a Slack channel? Pretty neat, huh? Did you also know that forwarding that message to a different channel within Slack would change your avatar to that of a bot and/or app? Notably less neat, we contend. Slack: Now with fewer identity crises.
• Launching the app by tapping on a notification banner would sometimes cause channel headers and the "Back" button to be conspicuously absent. There are few things in life from which there is truly no return; go forth in Slack and know that you can always retrace your steps.
• When two users had the same display name, we weren't showing their full names alongside in autocomplete menus. This gave the act of tagging someone in a message the same thrilling anxiety as greeting a person whose name you're only 50% sure you remember. Enjoy this fix, brought to you by Slack [Full Name: Slack Technologies, LLC]. 26.01.40 Jan 28 Bug Fixes
• Shooting stars may be ephemeral, but starred conversations in Slack are forever — at least that was the buggy behavior folks experienced when they found they could not un-star channels and DMs on mobile. We thank our lucky stars (not to mention our mobile engineers) for this bug fix.
• The "[Name] is typing..." indicator was not appearing within threads. Please take this message as indication that the bug has been fixed. 26.01.30 Jan 21 Bug Fixes
• We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 26.01.20 Jan 14 Bug Fixes
• We tweaked some things too small to notice or too difficult to explain. We’ll return you to your regular, more interesting types of release next time (we hope). 26.01.10 Jan 7 Bug Fixes
• We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again. 25.12.20 12/10/2025 Bug Fixes
• Apple VoiceOver was not able to select buttons anywhere in Slack outside of threads. Like your favorite cardigan, buttons and threads will, at times, be in need of repair. Here's a cozy thought: This bug has been all sewn up and tied off.
• We dropped the ball on dropdown arrows, which were hovering awkwardly in the center of the screen instead of sitting politely on the side. The next time you need to expand a menu, you'll find the tappable button right where you expect it to be.
• Dropdown menus were also not selecting the default value if you just pressed "Submit" without choosing anything. Perhaps it's a good reminder to always be intentional in our individual choices? Eh, probably just a bug. Our bad. 25.12.10 12/03/2025 Bug Fixes
• We tidied the shelves, cleaned the windows and ran a white-gloved finger over every flat surface. Just a little routine maintenance to ensure that everything is shipshape. Full steam ahead! 25.11.30 11/20/2025
Slack version 25.09.41
Updated At: 2025-09-26
Changes: Sep 26, 2025
Version 25.09.41
Bug Fixes
• We’ve tinkered with the internal workings and polished some rough edges. The app is now better than it was.
Slack version 25.07.40
Updated At: 2025-07-23
Changes: Jul 23, 2025
Version 25.07.40
Bug Fixes
• Like a New Year's resolution that peters out by July, changes to your notification schedule were not sticking, reverting as soon as the app was relaunched. Good intentions only go so far — this update contains a double-dose of "sticktoitiveness."
• Was your reaction one of confusion when long-pressing on emoji reactions? You weren't alone. The reacji summary that appeared was behaving oddly, erratically, inconsistently. If we had to put an emoji to the experience, we would use the thinking face. If we had to put an emoji to this fix, it would be a thumbs up.
• If you started editing a message, then decided to delete it from the edit flow, that deleted message would linger in the text entry field, requiring you to delete it again. Henceforth, if you want a message gone, gone it shall be. You don't have to ask twice.
• Pasting text after a block quote was creating a second block quote along with it. 2 for the price of 1! What do you call a deal that nobody wants? We're not sure, but with this update, the promotion has ended.
• In the next in our series of unintended (and undesirable) duplications, the word you were hyperlinking would find itself doubled if you happened to switch to another app midway through the process. We did a double take and doubled back for the fix. Excuse us while we double-time to the next bullet.
• Closing a conversation in the sidebar was only momentarily removing it from view, as it would pop back up as soon as you refreshed the screen. Sometimes stories, or conversations, aren't done with us — beckoning us back to revisit, reframe, resolve. Sometimes they're just bugs. You get to choose if and when to return now, on your own time.
• To add someone to an existing Group DM, you can do so by tapping on the DM header, or by going to the "Members" sub-menu within that popup. Unfortunately, only one of those routes was actually working. They say that when a door closes, a window opens; around here, when an "Add" button is grayed out, a bug report is filed. Come on in, however you prefer to arrive.
Slack version 25.05.41
Updated At: 2025-05-30
Changes: May 30, 2025
Version 25.05.41
Bug Fixes
• We tuned up the engine and gave the interiors a thorough clean. Everything is now running smoothly again.
Slack version 25.05.10
Updated At: 2025-05-07
Changes: May 7, 2025
Version 25.05.10
Bug Fixes
• Don’t mind us — just making a few small adjustments to keep the app in tip-top shape. More to come soon. Cheerio!
Slack version 25.04.50
Updated At: 2025-04-30
Changes: Apr 30, 2025
Version 25.04.50
Bug Fixes
• Canvases were sometimes failing to load for those running iOS 16. Many's the artist who has spoken of the thrill and intimidation of a blank canvas, but that's not the sort of emotional intensity we're looking to provoke. Inspiration without intimidation: That's canvases in Slack.
• In the New Channel flow, VoiceOver was identifying the channel icon (#) as a rather vague and unhelpful "Image." Sometimes, the less that's said, the clearer the picture that develops. For clarity's sake, VoiceOver will now ignore this tiny visual element.
Slack version 25.04.30
Updated At: 2025-04-16
Changes: Apr 16, 2025
Version 25.04.30
Bug Fixes
• Bugs were squashed, performance was improved, work was done, and the result was good. Please enjoy Slack responsibly.
Slack version 25.04.20
Updated At: 2025-04-09
Changes: Apr 9, 2025
Version 25.04.20
Bug Fixes
• Our app took an abrupt nap when "Shake to Undo" was used while composing messages with Markdown formatting. We'd like to undo this bug from our code. Shake on it?
Slack version 25.04.10
Updated At: 2025-04-02
Changes: Apr 2, 2025
Version 25.04.10
Bug Fixes
• All bugs that were fixed in this release were too small for the eye to see or too fiddly for human words to describe. Nevertheless, work was done, things tinkered with and the app became subtly better.
Slack version 25.03.40
Updated At: 2025-03-26
Changes: Mar 26, 2025
Version 25.03.40
Bug Fixes
• Certain date filters within lists were a mite too aggressive, filtering every single item out of view. A sieve without any holes is just a weird spoon, and a feature that doesn't work is just an annoying bug. Sorry for the trouble!
• With "Larger Text" enabled at the system level, there was a limit to how many people could be added when creating a new message in Slack, thrillingly recreating the experience of a venue at capacity. Our bouncer engineers have dropped the red velvet rope. Have a great time in there.
Disclaimer
Official App Store Link
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