# ESPHome 2026.8.0b6

- Product: ESPHome (https://whatsnew.fyi/product/esphome)
- Vendor: Open Home Foundation
- Date: 2026-08-19
- Version: 2026.8.0b6
- Original notes: https://github.com/esphome/esphome/releases/tag/2026.8.0b6
- Permalink: https://whatsnew.fyi/product/esphome/releases/2026.8.0b6
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Bump noise-c to 0.1.21
- **changed** — Modbus CRC scans all unknown function codes
- **changed** — Give the ccache wrapper a cmd.exe safe path
- **changed** — Report the origin of an unexpected exception during validation in VSCode
- **fixed** — Fix ESP32-P4 bootloop on rev3 (v3.x) chips when only variant is set
- **changed** — Bump bundled esphome-device-builder to 1.12.0
- **added** — Restore defaults:/files: support for platform entries in image
- **changed** — Key PlatformIO cache on the Python version so a runner image bump does not serve a broken LibreTiny venv

- [api] Bump noise-c to 0.1.20 [esphome#18482](https://github.com/esphome/esphome/pull/18482) by [@bdraco](https://github.com/bdraco)
- [ci] Fail the benchmark job when the C++ benchmark build fails [esphome#18480](https://github.com/esphome/esphome/pull/18480) by [@bdraco](https://github.com/bdraco)
- [api] Bump noise-c to 0.1.21 [esphome#18484](https://github.com/esphome/esphome/pull/18484) by [@bdraco](https://github.com/bdraco)
- [modbus] CRC scan all unknown function codes [esphome#18483](https://github.com/esphome/esphome/pull/18483) by [@exciton](https://github.com/exciton)
- [platformio] Give the ccache wrapper a cmd.exe safe path [esphome#18495](https://github.com/esphome/esphome/pull/18495) by [@bdraco](https://github.com/bdraco)
- [vscode] Report the origin of an unexpected exception during validation [esphome#18494](https://github.com/esphome/esphome/pull/18494) by [@bdraco](https://github.com/bdraco)
- [esp32] Fix ESP32-P4 bootloop on rev3 (v3.x) chips when only variant is set [esphome#18500](https://github.com/esphome/esphome/pull/18500) by [@swoboda1337](https://github.com/swoboda1337)
- [ci] Stop persisting the integration test ccache [esphome#18504](https://github.com/esphome/esphome/pull/18504) by [@swoboda1337](https://github.com/swoboda1337)
- Bump bundled esphome-device-builder to 1.11.3 [esphome#18505](https://github.com/esphome/esphome/pull/18505) by [@esphome[bot]](https://github.com/apps/esphome)
- Bump bundled esphome-device-builder to 1.11.4 [esphome#18506](https://github.com/esphome/esphome/pull/18506) by [@esphome[bot]](https://github.com/apps/esphome)
- Bump bundled esphome-device-builder to 1.11.5 [esphome#18507](https://github.com/esphome/esphome/pull/18507) by [@esphome[bot]](https://github.com/apps/esphome)
- [ci] Key PlatformIO cache on the Python version so a runner image bump does not serve a broken LibreTiny venv [esphome#18512](https://github.com/esphome/esphome/pull/18512) by [@bdraco](https://github.com/bdraco)
- Bump bundled esphome-device-builder to 1.12.0 [esphome#18514](https://github.com/esphome/esphome/pull/18514) by [@esphome[bot]](https://github.com/apps/esphome)
- [image] Restore defaults:/files: support for platform entries [esphome#18032](https://github.com/esphome/esphome/pull/18032) by [@clydebarrow](https://github.com/clydebarrow) (new-feature)
- [ci] Stop jobs hanging on apt by restoring the cached apt action and bounding raw apt calls [esphome#18518](https://github.com/esphome/esphome/pull/18518) by [@bdraco](https://github.com/bdraco)