With macOS Tahoe already more than half way through its cycle, and Apple’s WWDC announced, now is a good time to plan your Mac’s calendar. This article peeks at what lies ahead for macOS over the next six months.

Since the pandemic disruption settled, minor version updates to macOS have become more regular. Looking across Sonoma, Sequoia and Tahoe, greatest variation in their timing has been in their x.3 and x.4 releases, that have varied between 22 Jan – 11 Feb, and 7 – 31 March, respectively. x.5 to x.7 have been more consistent, as they’re more tightly constrained by events including WWDC, the subsequent new beta season, and for some maybe even a vacation.

Those are summarised in the chart above, together with my predictions for the dates we should expect the remaining minor versions of Tahoe. Those should bring its cycle to look like:

• 26.0 – 15 September 2025
• 26.1 – 3 November 2025
• 26.2 – 12 December 2025
• 26.3 – 11 February 2026
• 26.4 – 24 March 2026
• 26.5 – 11 May 2026
• 26.6 – 27 July 2026
• 26.7 – 14 September 2026.

Where my forecasts are given in italics. Patch releases, such as 26.3.1, and BSIs occur outside that schedule. While we’re on the topic of BSIs, all indications are that Apple only intends to provide them for the current release of macOS, as it did with RSRs, which means that those Macs staying with Tahoe from 26.7 will no longer get them. It’s unclear how significant a loss that might prove.

WWDC this year is being held between 8-12 June, and will almost certainly bring the first developer beta release of macOS 27.0 (and all Apple’s other OSes). That’s likely to be made available to public beta-testers in early July. This is particularly significant this year, as it will be the first version of macOS to run exclusively on Apple silicon Macs.

For those with Intel Macs, or intending to remain with older versions of macOS, likely dates of release for scheduled security updates to Sonoma and Sequoia are:

• 15.7.6, 14.8.6 – 11 May 2026
• 15.7.7, 14.8.7 – 27 July 2026
• 15.7.8, 14.8.8 – 25 August 2026
• 15.8 – 14 September 2026.

The date at the end of August is possible, but less likely than the previous two. So far this year, security updates for Sonoma and Sequoia have been keeping reasonably close to those for Tahoe, in terms of vulnerabilities addressed, so the security gap between them has been rather less than in previous cycles.

However, the important message here is that it’s unlikely that Sonoma will receive any further security updates after the end of August this year. If your Mac is capable of being upgraded to Sequoia, now is the time to plan that, or it’ll all too quickly be September and your macOS will have lost its last support.

Similarly, if you’ve been holding back from upgrading to Tahoe in the hope that it will undergo interface improvements, I’m afraid that’s now looking increasingly unlikely. If it’s an Intel Mac capable of running Tahoe, there’s little point in avoiding making that decision any longer. There’s only limited time and scope left for improvement in macOS 26, with most engineers now more focussed on getting macOS 27 ready for WWDC.

Key forecasts

• 26.5, 15.7.6, 14.8.6 – 11 May 2026
• 27.0 developer beta – 8 June 2026
• 27.0 public beta – 8 July 2026
• 26.6, 15.7.7, 14.8.7 – 27 July 2026
• 27.0, 26.7, 15.8 – 14 September 2026.