New macOS 26.3 Beta Signals Imminent New Mac Releases
Recent insights into macOS 26.3 Beta suggest that new MacBook Pro models are on the horizon. This latest software release includes significant references to two potential enhancements: the M5 Max and M5 Ultra chips.
Details of the macOS 26.3 Beta
The Release Candidate (RC) of macOS 26.3, as noted by MacRumors, contains internal codes likely tied to upcoming Apple chipsets. Specifically, it features two new System on Chip (SoC) IDs—T6051 and T6052—labelled with platform codes H17C and H17D respectively.
New Chip Specifications
Here’s a summary of the SoC IDs and corresponding platform codes associated with Apple’s M-series chips:
| Chip | SoC ID | Platform Code |
|---|---|---|
| M1 | T8103 | H13G |
| M2 | T8112 | H14G |
| M3 | T8122 | H15G |
| M4 | T8132 | H16G |
| Upcoming M5 Max | T6051 | H17C |
| Upcoming M5 Ultra | T6052 | H17D |
The evidence suggests that the T6051 identifier is likely linked to the M5 Max chip, while the T6052 is associated with the M5 Ultra. Interestingly, there are currently no indications of the M5 Pro chip, which may carry the T6050 identifier.
Release Timeline for New MacBook Pros
There is anticipation surrounding the release of these new models. Bloomberg recently indicated that the updated MacBook Pros could launch within the macOS 26.3 software cycle. This timing aligns with user expectations for enhanced performance and capabilities in upcoming devices.
As the tech community awaits more definitive announcements, these developments hint at a promising update for MacBook Pro enthusiasts.
