Marlin 2.1.2.4

Marlin 2.1.2.4 is a maintenance release to patch a few issues affecting certain kinds of setups, e.g., independent axes with multiple endstops. We recommend trying this version if you've encountered any of these issues.

Fixed / Improved

• 🩹 Fix broken STEPTEST for multi-endstop (9e02be4)
• 🐛 Mount media early for POWER_LOSS_RECOVERY (#27177)
• ✏️ Fix comma typo (#27138)
• 🚸 Prefer friendly Power Off over Auto-unalive (aa778c3)
• ⚡️ Optimize LPC176x pin toggle (#27149)

Build

• 🔨 Update SAMD51 build deps (1d13aaa)
• 🔧 Overridable SUICIDE_PIN for RAMPS_CREALITY (#27143)
• 🔧 Assume RAMPS_CREALITY is not CR2020 (e6787f7)

Miscellany

• 📝 Remove dead video links (23fda5b)
• 🎨 Misc. SPI cleanup (c674f01)
• 📝 "Boards Manager" (af8747e)
• 🧑‍💻 Adjust pulse_phase_isr code guards (#27112)