Powerwall firmware versions reported by Netzero app users active within the past 7 days.
Latest version seen: 26.26.0 d2487d0a
| Version | PW3 % | First seen |
| 26.18.3 184289b9 | 88.1% | Jul 10, 2026 |
| 26.18.1 fabf8f5a | 6.3% | May 26, 2026 |
| 26.26.0 d2487d0a | 1.2% | Jul 17, 2026 |
| 26.18.3-c-2 a38ba705 | 1.1% | Jul 21, 2026 |
| 26.10.3 4f924de8 | 1.1% | Apr 16, 2026 |
| 26.2.1 a7456b0a | 0.3% | Feb 12, 2026 |
| 26.10.4 a42baa54 | 0.3% | May 07, 2026 |
| 26.18.1-e-1 aa775fc0 | 0.3% | Jun 09, 2026 |
| 25.34.3 82272c3b | 0.2% | Oct 17, 2025 |
| 26.2.1-r 51403658 | 0.2% | Feb 13, 2026 |
| Others | 0.9% |
Latest version seen: 26.26.0 d2487d0a
| Version | PW2 % | First seen |
| 26.18.3 184289b9 | 84.4% | Jul 10, 2026 |
| 26.18.1 fabf8f5a | 9.3% | May 26, 2026 |
| 26.10.3 4f924de8 | 1.2% | Apr 16, 2026 |
| 26.26.0 d2487d0a | 1.2% | Jul 17, 2026 |
| 26.2.0 87adb89e | 0.5% | Jan 23, 2026 |
| 25.42.1 1d1ff4c6 | 0.3% | Nov 19, 2025 |
| 26.10.3-n-3 841e39e2 | 0.3% | May 28, 2026 |
| 25.34.1 930a7700 | 0.2% | Sep 17, 2025 |
| Others | 2.5% |
The firmware version number follows a calendar-based scheme: the first part represents the year, and the second part indicates the week number of the major release. For example, version 25.42 corresponds to the year 2025 and the 42nd week starting October 13, 2025. Since 2023, Tesla has consistently released a new major version every 8 weeks. The third part of the version (e.g. 25.42.1) represents a revision or incremental update, which may be released more frequently.
Data last updated: 2026-07-22