26.6 as a maintenance update
Even after several betas, only two adjustments were revealed. There is a warning if users have blocked more than 20,000 numbers/contacts. This can happen when apps create block lists against spam numbers – such databases often contain well over 10,000 entries. As already mentioned in the last message: It’s not the limit that’s new, just the error message. Apple also implemented a new security process for Apple Maps that screens incoming requests before processing them. This probably serves to provide better protection against injected character strings, which can cause unwanted problems.
The current betas
Finally, as always, the well-known list of currently available beta versions. The new round began with “e” or “f” in the last position of the build number, with Beta 2 it was “c” and “d”, then with Beta 3 it was “e” again (macOS), now “b” to “c”. Everyone is now familiar with Apple’s approach of counting down until you get to “a” and the release candidates without any letters at all – although sometimes it goes in the other direction. This is what it currently looks like in the developer area – the public beta should follow, as usual, with a short delay.
| system | Build number | Published |
| macOS 26.6 Beta 4 | 25G5057c | July 6, 2026 |
| iOS 26.6 Beta 4 | 23G5057c | July 6, 2026 |
| iPadOS 26.6 Beta 4 | 23G5057c | July 6, 2026 |
| watchOS 26.6 Beta 4 | 23U5054b | July 6, 2026 |
| tvOS 26.6 Beta 4 | 23L5758b | July 6, 2026 |
| visionOS 26.6 Beta 4 | 23O5757c | July 6, 2026 |

