It uses machine learning to automatically smooth and straighten your handwriting as you write with an Apple Pencil.
You can enable it by tapping the Markup button in a note, selecting the More (...) icon, and toggling on Auto-refine Handwriting . 2. Software Bug Tracking (Home Assistant & Reolink)
The identifier "121259" also serves as an article number for several peer-reviewed studies published in major journals:
Depending on what you are looking for, here are the three most likely contexts for a "write-up" on this number: 1. iPad "Auto-Refine" Handwriting
It was identified as a firmware-level bug, highlighting the complexities of integrating third-party smart home hardware with open-source platforms. 3. Scientific Research
It makes handwritten notes more legible and professional while retaining the user's personal writing style.
Users reported that the siren on certain hardware versions of the camera stopped working after a firmware update.
Apple Support document HT121259 details how users can utilize the feature in the Notes app.