As part of the Journey to Odin 1.0, we are cleaning up the packages that Odin provides and making explicit delineations for what is needed. A new library collection has been added: base.

This means that there are now 3 official library collections as part of the official compiler:

• base - packages which are required by the language itself, defined by the language specification, and all compilers must implement (implementations may different, but interface must be the same)
  • All platforms (including freestanding) will be supported in this library collection
• core - packages which are core to most programming development and supported by most platforms.
  • Most platforms will be supported in this library collection
• vendor - third-party packages with first-party support which are useful for numerous projects (graphics APIs, audio, window management, specialized networking, etc).
  • Many platforms will be supported in this library collection

Packages which have been moved to the new base library collection:

• core:builtin -> base:builtin (previous is still valid as an alias)
• core:intrinsics -> base:intrinsics (previous is still valid as an alias)
• core:runtime -> base:runtime (previous is still valid as an alias)

New Language Features

• builtin.quaternion call must name the elements with x y z w or real imag jmag kmag rather than be positional
• struct #field_align(N)
  • It sets the minimum alignment for the fields within a struct. This cannot be used with #packed, but can be used with #align(N).
  • If #align(N) is less than #field_align(N), then a warning will be printed.
• Removal of incl and excl built-in procedures. Prefer:
  • s += {.A,} for incl(&s, .A)
  • s -= {.A,} for excl(&s, .A)

Compiler Improvements

• @(entry_point_only) attribute to mark a procedure which can only be called within main (the entry point procedure)
• Move builtin matrix procedures to intrinsics
  • They can be either accessed from base:intrinsics or core:math/linalg etc packages
• Fix calling conventions for the core:simd/x86 calling conventions
• Expand -subsystem option on Windows
• -default-to-panic-allocator
• Numerous typo fixes

New Packages

Package Improvements

• Use "system" calling convention everywhere "stdcall" was previous used
  • This allows cross platform use of packages which were originally Windows only but not any more
• core:mem/virtual
  • virtual.map_file
• core:dynlib
  • dynlib.initialize_symbols
  • dynlib.last_error
• core:c/libc
  • libc.to_stream
• core:math/fixed improvements
• Fix vendor:raylib IsGestureDetected binding
• Fixes for wasm targets
• Remove any cyclic dependencies that base:runtime previously depended on (e.g. core:os)