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MicroPython v1.25.0

After more than three years in development, the "ROMFS" feature has been finalised, its filesystem format specified, and the VFS driver and supporting code are included in this release of MicroPyth...

Thanks to everyone who contributed to this release: Alessandro Gatti, Alex Brudner, Amirreza Hamzavi, Andrew Leech, Angus Gratton, Anson Mansfield, Carl Pottle, Christian Clauss, chuangjinglu, Corran Webster, Damien George, danicampora, Daniël van de Giessen, Dryw Wade, eggfly, Garry W, garywill, Glenn Moloney, Glenn Strauss, Graeme Winter, Hans Maerki, Herwin Grobben, I. Tomita, iabdalkader, IhorNehrutsa, Jan Klusáček, Jan Sturm, Jared Hancock, Jeff Epler, Jon Nordby, Jos Verlinde, Karl Palsson, Keenan Johnson, Kwabena W. Agyeman, Lesords, machdyne, Malcolm McKellips, Mark Seminatore, Markus Gyger, Matt Trentini, Mike Bell, Neil Ludban, Peter Harper, peterhinch, Phil Howard, robert-hh, Ronald Weber, rufusclark, Sebastian Romero, Steve Holden, stijn, StrayCat, Thomas Watson, Victor Rajewski, Volodymyr Shymanskyy, Yoctopuce. code and function constructor persistentcode: add mp_raw_code_save_fun_to_bytes mkrules.cmake: support passing CFLAGS_EXTRA in environment variable emitinlinerv32: fix compilation with ESP-IDF v5.2 and later emitinlinerv32: reduce the footprint of compiled code emitinlinextensa: simplify register name lookup parsenum: reduce code footprint of mp_parse_num_float objstr: support tuples and start/end args in startswith and endswith modsys: add sys.implementation._build entry makeqstrdata.py: implement MicroPython compatibility objarray: add MP_DEFINE_MEMORYVIEW_OBJ convenience macro runtime: automatically mount ROMFS as part of mp_init mpconfig: enable 2-argument built-in next() at basic feature level dynruntime: make malloc functions raise MemoryError on failure emitinlinerv32: move include of asmrv32.h to within feature guard mpconfigport: switch FATFS LFN to type 2 Makefile: remove id_code section from binary file generation modrenesas: expose the Flash block device to Python code

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