🐛 Bug Fixes

• Fix buffering issues with CP2102 converter causing connection failures (Jaroslav Burian - 72f6b0d)
• ESP32-S3: Fix stub flasher execution with active Secure Boot (Radim Karniš - a846531)
• ESP32-C3: Disable flasher stub when Secure Boot is active (Radim Karniš - a03158c)
• elf2image: Fix support for ESP32-H4 MMU page size configuration (Jaroslav Burian - 5ae594b)
• elf2image: Validate ELF section types and addresses before processing (Jaroslav Burian - e67ec01)
• elf2image: Handle PREINIT_ARRAY section type in ESP32-P4 ELF files properly (Jaroslav Burian - f5404fa)
• ESP32-S2: Enabled auto-detection in secure download mode (Jaroslav Burian - 624f1b6)
• ESP32-P4: Enabled ECO5 chip detection (Jaroslav Burian - e4b9675)

Results of checking the release against common anti-virus SW

• esptool-v4.9.1-windows-amd64.zip
• esptool-v4.9.1-macos-arm64.tar.gz
• esptool-v4.9.1-macos-amd64.tar.gz
• esptool-v4.9.1-linux-armv7.tar.gz
• esptool-v4.9.1-linux-amd64.tar.gz
• esptool-v4.9.1-linux-aarch64.tar.gz

The failures are probably false positives. You can mark esptool as safe in your anti-virus SW, or install esptool from source.