April Fools! Please don't actually use this version for anything serious, it's 99% incompatible...

Don't forget to check out our docs (particularly gbz80.7) for more details on the updated functionality!

Please welcome two new contributors, @Rangi42 and @dannye! Rangi did more than half of the work on this release—our biggest one yet!

Changes since v0.5.0-rc2:

New revised syntax solves the long-standing debate of whether to align instruction operands or not

Deprecated:

_PI wasn't useful, so it's deprecated now
PRINTT, PRINTV, PRINTF and PRINTI are obsoleted by the new PRINT/PRINTLN and STRFMT

Known issues:

Regression: Expanding recurse EQUS "recurse" or recurse EQUS "\{recurse\}" hangs rgbasm (#696)
.sym files miss some symbols from multiple SECTION UNIONs/FRAGMENTs (#809)

Added:

New MACRO <name> syntax for defining macros! The old syntax will still be supported for a couple versions, but may eventually be phased out.
RGBFIX can now be used in pipelines! Example: rgblink -o - obj/header.o obj/game.o | rgbfix -v -p0xFF >bin/dinos_with_lasers.gb
{symbol} interpolation outside of strings, similar to macro args (differs from the pre-0.4.2 behavior!!)
More complex format specifiers are now allowed in symbol interpolations
Anonymous labels
Environment var SOURCE_DATE_EPOCH can be used for reproducible builds
Underscores can be used in numeric literals (e.g. %1101_1110_1010_1101)
New string functions STRRIN, STRRPL and STRFMT
\# to get all of a macro's arguments
"""Multi-line string literals"""
FOR blocks!
BREAK exits REPT and FOR early
POW and LOG fixed-point functions
** exponent operator (for integers)
REDEF to redefine EQUS much more conveniently
RL has been reintroduced alongside RB and RW
LOAD UNION and LOAD FRAGMENT

Changed:

Syntax errors will now be more verbose! Be careful that YMMV depending on the Bison version that RGBASM was compiled with.
Syntax errors are no longer fatal! If a line contains a syntax error, RGBASM will discard it and attempt to continue with the next line.
RGBFIX's -m now accepts MBC names
More symbols will be available in the .sym and .map files
Slack totals are now included in the .map files
Interaction of quotes and macro args should be more intuitive
ds can now repeat patterns, not just a single byte
Global labels can now be indented, not just local ones
Trailing commas are allowed for most "list" directives, such as db
STRCAT can now concat any amount of strings
LOAD blocks cannot create ROM sections anymore (#576)
ROUND, FLOOR and CEIL fixed-point builtins were present but undocumented
Macro arguments can now be shifted by a negative amount, "un-shifting" them
Macro args can now be empty, though this causes a warning

Removed:

Fixed:

Enabled several optimizations that should improve performance, especially RGBASM
SECTION FRAGMENTs now respect their constraints at their respective beginnings, not as a whole
Line numbers could be incorrect on Windows
RGBASM will explicitly reject more than one input file, rather than silently ignore them
Macro args weren't ignored in block comments
Fixed a rare crash with unterminated REPT/FOR blocks
Fixed incorrect handling of text after MACRO, ENDM and ENDR tokens
Can't start a new section if another with the same name has been PUSHS'd
ds N, @ could produce incorrect results
ELIF and ELSE were allowed after ELSE
. was treated as a label
Performance of gbdiff.bash improved significantly
Defining an EQUS after referencing it is now an error
Passing -t and -O to RGBLINK generated an output too large

Attention downstream packagers

Don't package this release, lol