atomvm/AtomVM v0.7.0-alpha.1

on GitHub

This is an alpha release, the second pre-release on the road to v0.7.0. If you need maximum stability for production deployments, we recommend staying on v0.6.x. That said, we encourage you to try v0.7.0-alpha.1 and report any issues you encounter, your feedback is invaluable in shaping the stable release.

Please read the getting started guide for flashing instructions.

Added

• Added json module to estdlib, compatible with Erlang/OTP json API
• Added Keyword.put_new/3 to exavmlib
• Added JSON module to exavmlib (Elixir wrapper for estdlib json)
• Added erlang:node/1 BIF
• Added erts_internal:cmp_term/2
• Added short option to erlang:float_to_binary/2 and erlang:float_to_list/2
• Added generic unix support for uart using POSIX nifs
• Added RISC-V 64-bit (RV64IMAC) JIT backend
• Added arm32 JIT backend
• Added DWARF debug information support for JIT-compiled code
• Added I2C and SPI APIs to rp2 platform
• Added code:get_object_code/1
• Added erlang:display_string/1 and erlang:display_string/2
• Added Thumb-2 support to armv6m JIT backend, optimizing code for ARMv7-M and later cores
• Added support for binary:split/2,3 list patterns and trim / trim_all options
• Added timer:send_after/2, timer:send_after/3 and timer:apply_after/4

Changed

• ~10% binary size reduction by rewriting module loading logic
• erlang:float_to_binary/2 and erlang:float_to_list/2 now accept {decimals, 0..253} and {scientific, 0..249}
• erlang:binary_to_float/1 and erlang:list_to_float/1 now use locale-independent parsing and strict format validation
• ESP32: the boot.avm partition for Erlang-only images has been increased from 256KB to 512KB, matching the Elixir partition layout. The main.avm offset is now 0x250000 for all images (previously 0x210000 for Erlang-only).

Fixed

• Fixed erlang:cancel_timer/1 return type spec and documentation to match OTP
• Fixed map type ordering in term comparison to match OTP specification (maps should order between tuples and nil)
• Fixed a bug in bs_match get_tail logic that occurred with OTP26-compiled beams
• Fixed locale-dependent decimal separator in erlang:float_to_binary and erlang:float_to_list
• Fixed erlang:binary_to_float/1 and erlang:list_to_float/1 returning inf for overflow instead of raising badarg
• Fixed erlang:raise/3 with a built stacktrace causing an assertion failure when the re-raised exception passes through a non-matching catch clause

Removed

• Removed support for OTP versions < 26
• Removed old json_encoder module (now standard Erlang/OTP json module is available)