Tick the tools you use. You get the dated changes that affect them, sorted by date, each with its source link and the date we last checked it. Nothing you tick leaves your browser.
The tools you use
Tick at least one tool to see its deadlines. Until then, every deadline is listed below.
Deadlines (12)
Dates as of Oct 19, 2026. Expired deadlines are marked "Expired" and "passed on". Check each source for the current date.
Shopify POS 11.15 percentage-discount value change (breaking, all POS UI extension API versions)
Expired. Passed on Oct 7, 2026, what to do now
This change has rolled out. If you run a custom or private POS UI extension, check that percentage discounts show the right amount.
passed on Oct 7, 2026: Rolls out as devices update to POS 11.15.
Who is hit: Shopify POS merchants running a custom/private POS UI extension that reads Discount.amount as money (e.g. 25% on $200 now returns 25, not 50) For businesses with their own scripts
Ask whoever set up your scripts, app or integration whether this change touches it.
Read the vendor's own page for the current steps and dates.
Put the date in your calendar. (Reminder dates are our suggestion, not the vendor's.)
General guidance, not legal, tax or IT advice. Not affiliated with the vendor named here. Names are used only to describe compatibility.
Microsoft Whiteboard: Old Whiteboards still stored in Azure
Expired. Passed on Oct 16, 2026, what to do now
Oct 16 has passed. Microsoft says remaining work or school Whiteboards still stored in Azure (not migrated to OneDrive) were permanently deleted and cannot be recovered. Boards already moved to OneDrive are not part of this. Whiteboard itself is not going away for work or school accounts.
passed on Sep 25, 2026: Boards still in Azure became read-only. They can still be viewed and exported until Oct 16.
passed on Oct 16, 2026: Microsoft says remaining Azure-based Whiteboards are permanently deleted, with no recovery.
Who is hit: Work or school Whiteboard users with boards still in the "Not migrated" section.
General guidance, not legal, tax or IT advice. Check Microsoft's page and your own account. Not affiliated with Microsoft. Names are used only to describe compatibility.
ChatGPT custom GPTs: Custom GPTs retire; creators can migrate them to plugins
Next: Oct 26, 2026
OpenAI's FAQ says: "Custom GPTs are scheduled to retire on Dec 11, 2026." Creators can migrate a GPT to a plugin from My GPTs (Migrate to plugin) when migration is available for their account. Custom actions do not transfer. OpenAI says the dates are subject to change; follow the notice in your own account or workspace.
Oct 26, 2026: Planned, affected Enterprise workspaces: creation of new custom GPTs ends. Publish any drafts you need to migrate before this cutoff.
Dec 11, 2026: Standard scheduled retirement. Custom GPTs and their GPT pages become inaccessible.
Feb 11, 2027: Retirement only for Enterprise workspaces with a qualified, approved deferral.
Who is hit: Anyone who created or relies on a custom GPT, on any ChatGPT plan.
General guidance, not legal, tax or IT advice. Check OpenAI's FAQ and the notice in your account. Not affiliated with OpenAI. Names are used only to describe compatibility.
Zendesk Support API tokens retired
Next: Oct 27, 2026
passed on Jul 28, 2026: Unused 30-day tokens auto-deactivate.
Oct 27, 2026: New token creation blocked.
Apr 30, 2027: All tokens stop working (no extension).
Who is hit: Small businesses with their own scripts or integrations calling the Zendesk Ticketing/Help Center/Voice APIs with an API token For businesses with their own scripts
Ask whoever set up your scripts, app or integration whether this change touches it.
Read the vendor's own page for the current steps and dates.
Put the date in your calendar. (Reminder dates are our suggestion, not the vendor's.)
General guidance, not legal, tax or IT advice. Not affiliated with the vendor named here. Names are used only to describe compatibility.
IRS FIRE e-file system retires (1099s move to IRIS)
Next: Nov 1, 2026
The IRS is retiring FIRE (Filing Information Returns Electronically), the system many filers use to e-file Forms 1099 and other information returns. The IRS says existing applicants can update their applications through Nov. 9, 2026, after which they become read-only. The IRS says current FIRE users must complete a separate IRIS Application for TCC to file in IRIS. If a payroll provider or accountant files for you, this may already be handled. Ask them.
Nov 1, 2026: Last day to file test information returns through the FIRE test system.
Nov 9, 2026: Last day to make changes to IR Applications for TCCs.
Nov 19, 2026, 3 p.m. ET: Last day to file information returns through FIRE.
Jan 1, 2027: IRIS is the only electronic filing system for information returns, including prior-year returns and corrections.
Who is hit: Anyone who e-files Forms 1099 or other information returns through the IRS FIRE system themselves.
General guidance, not legal, tax or IT advice. Check the IRS pages and ask your tax professional for your situation. Not affiliated with the IRS. Names are used only to describe compatibility. Ask your payroll provider or accountant.
Amazon already requires commercial liability insurance (at least $1 million per occurrence and in total) for sellers whose Amazon.com sales go over $10,000 in any month. Amazon's announcement says two changes start November 2, 2026. First, sellers with products in categories that have enhanced safety listing requirements need that coverage for those products regardless of the $10,000 threshold, for new and existing listings. Amazon names children's products, cosmetic and ingestible products, and lithium battery products, and says the list is not limited to those. Second, sellers based in Mainland China must get new policies through Amazon's Insurance Accelerator program. Check Amazon's own pages for which rules apply to your products.
Nov 2, 2026: Change 1: sellers with products in categories that have enhanced safety listing requirements need coverage for those products regardless of the $10,000 threshold, for new and existing listings.
Nov 2, 2026: Change 2: sellers based in Mainland China must get new policies through Amazon's Insurance Accelerator program.
Who is hit: Amazon sellers. Check which rules apply to your products.
General guidance, not legal, tax or IT advice. Not insurance advice. Check Amazon's official page and talk to a licensed insurance agent. Not affiliated with Amazon. Names are used only to describe compatibility.
ZenBusiness Banking: deposits stop Nov 3, accounts close Nov 30
Next: Nov 3, 2026
ZenBusiness says its ZenBusiness Banking program is being discontinued. ZenBusiness says it will not move your money for you, and automatic payments and deposits do not move to a new account by themselves. ZenBusiness says statements and transaction records stay available on the Banking dashboard for at least 1 year, and suggests not starting transactions close to the deadline. You can move your funds to any bank you choose. Money Pro is a separate product and keeps working. Check ZenBusiness's own page for the current steps.
Nov 3, 2026: Deposits into ZenBusiness Banking accounts are disabled. ZenBusiness says incoming funds after this date are rejected or returned to the sender.
Nov 30, 2026: ZenBusiness Banking accounts close and linked debit cards stop working. Any balance over $1.00 left is mailed as a check to the address on file.
Who is hit: Businesses with a ZenBusiness Banking account.
General guidance, not legal, tax or IT advice. Not financial advice. Check ZenBusiness's page and your own account. Not affiliated with ZenBusiness or any bank. Names are used only to describe compatibility.
Amazon Ads older Sponsored Ads and DSP reports pages retire
Next: Dec 31, 2026
Amazon Ads says unified reporting is now generally available in Ads Console (Measurement and Reporting > Reporting). Amazon says it is sunsetting the older Sponsored Ads reports page and the Amazon DSP reports page by December 31, 2026. If you or your agency rely on saved or scheduled reports from those older pages, they need to be recreated in unified reporting. Amazon's June 8, 2026 announcement said an automated tool to move existing scheduled reports would be available soon. Your ad data itself is not described as going away. Check Amazon's own page for current steps and dates.
Dec 31, 2026: Amazon Ads says it is sunsetting the Sponsored Ads reports and Amazon DSP reports pages by this date. Unified reporting is under Measurement and Reporting > Reporting.
Who is hit: Amazon advertisers who use saved or scheduled reports from the older reports pages.
General guidance, not legal, tax or IT advice. Check Amazon Ads' page and your own account. Not affiliated with Amazon. Names are used only to describe compatibility.
Microsoft Advertising SOAP API retired
Next: Jan 31, 2027
Jan 31, 2027: Microsoft says the SOAP API is scheduled for full deprecation.
Who is hit: Small advertisers with in-house SOAP scripts/tools for Microsoft Ads For businesses with their own scripts
Ask whoever set up your scripts, app or integration whether this change touches it.
Read the vendor's own page for the current steps and dates.
Put the date in your calendar. (Reminder dates are our suggestion, not the vendor's.)
General guidance, not legal, tax or IT advice. Not affiliated with the vendor named here. Names are used only to describe compatibility.
Microsoft Exchange Online: EWS switched off (phased from Oct 2026, fully disabled Apr 1, 2027)
Next: Apr 1, 2027
Microsoft says tenants with EWSEnabled still set to Null are changed to False as the phased rollout reaches them, which blocks EWS for all apps, and that "Starting with April 1, 2027, EWS will be fully and permanently disabled." There will be no exceptions past April 2027. Apps that still use EWS need to move to Microsoft Graph.
passed on Oct 1, 2026: Phased, tenant by tenant: tenants with EWSEnabled still Null are changed to False as the rollout reaches them.
Apr 1, 2027: EWS in Exchange Online is fully and permanently disabled. No exceptions past April 2027.
Who is hit: Microsoft 365 admins whose apps, scripts or services still use EWS. For businesses with their own scripts
General guidance, not legal, tax or IT advice. Check Microsoft's posts and the Message Center for your tenant. Not affiliated with Microsoft. Names are used only to describe compatibility.
Microsoft Office and Windows: Office 2021 and Windows 11 24H2 Home/Pro
Expired. Passed on Oct 13, 2026, what to do now
Microsoft's support and release-health pages list October 13, 2026 as the date updates ended for Office 2021 and for Windows 11 version 24H2 Home and Pro. That date has just passed. After that date, Microsoft says it no longer provides technical support, bug fixes or security fixes for those versions. The apps may keep working. Enterprise and Education editions of 24H2 have a later date (Oct 12, 2027), and Microsoft says unmanaged Home/Pro PCs are offered the 25H2 update automatically. Microsoft's lifecycle product pages show a time stamp of 10/14/2026 6:59:59 AM; the support pages say Oct 13, so we use Oct 13.
passed on Oct 13, 2026: Support for Office 2021 ends. Microsoft says there is no extension and no extended security updates.
passed on Oct 13, 2026: Windows 11 version 24H2 Home and Pro reach end of updates.
Oct 12, 2027: Windows 11 version 24H2 Enterprise and Education editions reach end of updates.
Who is hit: Anyone still on Office 2021 or Windows 11 version 24H2 Home or Pro.
General guidance, not legal, tax or IT advice. Check Microsoft's pages and ask your IT provider for your situation. Not affiliated with Microsoft. Names are used only to describe compatibility.
Not advice
General guidance, not legal, tax or IT advice. Each item has its own source link; check it for your case. Reminder dates in the calendar file are our suggestion, not the vendor's.
