Version History

Release history and version milestones for the PBXB64 compiler. The Z-series are internal Z-milestones (development drops). The V-series are user-facing release drops. Each row in the table below corresponds to a tag in the repository's version history.

Description

Current Version: 0.50.0-V17 (Release V17) — 2026-08-06
V17 package: PBXB64 is delivered in the shared PBX-Basic package with PBXA32, PBXA64, ScharffBasic, PBX-Editor, bilingual CHM help, 400 tested examples, 354 qualified includes, and 34 C17 headers.
Implementation: Pure C11 (no C++ dependencies)
Target: Windows x64 PE32+ / COFF object files
Languages: PowerBASIC-compatible BASIC, B64, C17, inline ASM
Test matrix: 1591/1591 (0 expected fails) — 250 assembly, 53 PB link+run, 13 B64 link+run, 84 C compile, 2 C link+run

Version Milestones

Milestone	Date	Lane	Key Features
Z58	2026	B64	`--emit-ir` / `--dump-ir` are split. Integer global initializers emit bytes into `.data` / `.rdata`.
Z58–Z60	2026	PB	All PB statement handlers rewritten to use `pb_try_eval_expr()` instead of `pb_eval_expr()`. Real handlers for DIALOG, CONTROL, TCP/UDP, HOST, THREAD, REGISTER, COMM, MOUSEPTR, PROCESS, LPRINT, XPRINT, GUI, DISPLAY, FONT, MENU, GRAPHIC.
Z60	2026	all	4-track known-limitation sweep. B64 examples 11/11, PB Link+Run 6/6, C compile 63/63, C link+run 1/1. Runtime stubs replaced with real Win32 calls.
Z61	2026	PB / link	Win64 multi-arg ABI fix (5+ args), IR_OP_REM correctness (CQO/IDIV implicit readers), FOR loop body const-fold fix, link-symbol sweep (25 missing runtime symbols added). Float FOR loop, negative STEP, CURRENCY type coverage.
Z64	2026	all	25-bug sweep. 318/318 tests green. V3 release.
Z65	2026	H-Lib	10 native H-Lib container families: Arr, Stk, Que, Lst, Str, 2D, Hsh, Tre, DTre, Tri. Method-dispatch syntax, auto-init on entry, auto-finalize on scope exit. 12 container test files pass.
Z66	2026	runtime	MinGW `snprintf` crash fix, build script robustness, user-runtime helper object (`c_runtime_user.c`). P0 runtime: `ERROR$`, `UCODE$` / `UCODEPAGE`, `PRINT USING`.
Z67	2026	H-Lib	H-Lib Phase 7 — UDT payload containers. `AS LNARR OF MyType`, `AS LNLST OF MyType`, etc. Container + UDT integration.
Z68	2026	C	H-Lib Phase 8 — C-frontend parity. `core/include/c17/pbxb64/hlib.h` exposes `c_hlib_lnarr_*` symbols. C Link+Run lane 1/1 → 2/2.
Z69	2026	PB / H-Lib	SortUsing callbacks + `CODEPTR`. Comparator-driven sort with `CODEPTR(CompareFn)`. Real function-address extraction in IR.
Z70	2026	PB / V	VARIANT completeness sweep. Variant scalars/arrays, deep-copy lifecycle, FOR-loop memory-corruption fix. Variant stress test.
Z71	2026	H-Lib	H-Lib Phase 10 — `[]` subscript access. `a[1] = 100`, `n = h["k"]`. `sys_date_time_environ_command` runtime completion.
Z72	2026	H-Lib	H-Lib Phase 11 — Heap, Deque, Set, Graph container families.
Z73	2026	H-Lib	H-Lib Phase 12 — Multiset, UnionFind, LRU, Ring, SkipList, B+Tree, Quadtree, Bloom, Safe container families. 23 families total.
Z74	2026	PB	Generated PB system regression sweep. Hardened `DATE$`/`TIME$`, `COMMAND$`/`ENVIRON$`, `MOUSEPTR`, `PROCESS PRIORITY`, `UCODE$`/`UCODEPAGE`. Float-register-lifetime bug fixed.
Z75	2026	PB	Real RND, RANDOMIZE, INKEY$, WAITKEY$ user runtime. LCG-based RNG with deterministic seed; Win32 console-input reads (`PeekConsoleInputA` / `ReadConsoleInputA`).
Z76	2026	all	V5 ship-readiness sweep. INTEGER byte-size consistency, removed stale `core/source/include/compiler/frontend/pb_ast.h`. RESET, LIKE, FRAC, TIX, RND/RANDOMIZE replaced with real implementations. 1591/1591 tests, 0 expected fails.
V6	2026-06-14	dist	First public release of the V-series distribution. UPX-compressed single-binary `PBXB64.exe` (~919 KB), includes `PBXB64_Help.chm`.
V7	2026-06-15	dist	Updated H-Lib coverage and command-line option documentation. `-E` preprocessor mode, `-I` / `-isystem` search paths.
V8	2026-06-17	core	Wide-integer 128/256/512-bit native types (`INT128` / `UINT128` / `INT256` / `UINT256` / `INT512` / `UINT512`) with inline arithmetic. Print support for all wide-integer types. Assembler `global` directive fix.
V8.1	2026-06-18	core	MSGBOX `?` shorthand alias (PB/CC compatible). TBOX timed message box with `[d]` timeout marker and auto-dismiss thread.

Milestone

Date

Lane

Key Features

Z58

2026

B64

--emit-ir / --dump-ir are split. Integer global initializers emit bytes into .data / .rdata.

Z58–Z60

2026

All PB statement handlers rewritten to use pb_try_eval_expr() instead of pb_eval_expr(). Real handlers for DIALOG, CONTROL, TCP/UDP, HOST, THREAD, REGISTER, COMM, MOUSEPTR, PROCESS, LPRINT, XPRINT, GUI, DISPLAY, FONT, MENU, GRAPHIC.

Z60

2026

all

4-track known-limitation sweep. B64 examples 11/11, PB Link+Run 6/6, C compile 63/63, C link+run 1/1. Runtime stubs replaced with real Win32 calls.

Z61

2026

PB / link

Win64 multi-arg ABI fix (5+ args), IR_OP_REM correctness (CQO/IDIV implicit readers), FOR loop body const-fold fix, link-symbol sweep (25 missing runtime symbols added). Float FOR loop, negative STEP, CURRENCY type coverage.

Z64

2026

all

25-bug sweep. 318/318 tests green. V3 release.

Z65

2026

H-Lib

10 native H-Lib container families: Arr, Stk, Que, Lst, Str, 2D, Hsh, Tre, DTre, Tri. Method-dispatch syntax, auto-init on entry, auto-finalize on scope exit. 12 container test files pass.

Z66

2026

runtime

MinGW snprintf crash fix, build script robustness, user-runtime helper object (c_runtime_user.c). P0 runtime: ERROR$, UCODE$ / UCODEPAGE, PRINT USING.

Z67

2026

H-Lib

H-Lib Phase 7 — UDT payload containers. AS LNARR OF MyType, AS LNLST OF MyType, etc. Container + UDT integration.

Z68

2026

H-Lib Phase 8 — C-frontend parity. core/include/c17/pbxb64/hlib.h exposes c_hlib_lnarr_* symbols. C Link+Run lane 1/1 → 2/2.

Z69

2026

PB / H-Lib

SortUsing callbacks + CODEPTR. Comparator-driven sort with CODEPTR(CompareFn). Real function-address extraction in IR.

Z70

2026

PB / V

VARIANT completeness sweep. Variant scalars/arrays, deep-copy lifecycle, FOR-loop memory-corruption fix. Variant stress test.

Z71

2026

H-Lib

H-Lib Phase 10 — [] subscript access. a[1] = 100, n = h["k"]. sys_date_time_environ_command runtime completion.

Z72

2026

H-Lib

H-Lib Phase 11 — Heap, Deque, Set, Graph container families.

Z73

2026

H-Lib

H-Lib Phase 12 — Multiset, UnionFind, LRU, Ring, SkipList, B+Tree, Quadtree, Bloom, Safe container families. 23 families total.

Z74

2026

Generated PB system regression sweep. Hardened DATE$/TIME$, COMMAND$/ENVIRON$, MOUSEPTR, PROCESS PRIORITY, UCODE$/UCODEPAGE. Float-register-lifetime bug fixed.

Z75

2026

Real RND, RANDOMIZE, INKEY$, WAITKEY$ user runtime. LCG-based RNG with deterministic seed; Win32 console-input reads (PeekConsoleInputA / ReadConsoleInputA).

Z76

2026

all

V5 ship-readiness sweep. INTEGER byte-size consistency, removed stale core/source/include/compiler/frontend/pb_ast.h. RESET, LIKE, FRAC, TIX, RND/RANDOMIZE replaced with real implementations. 1591/1591 tests, 0 expected fails.

2026-06-14

dist

First public release of the V-series distribution. UPX-compressed single-binary PBXB64.exe (~919 KB), includes PBXB64_Help.chm.

2026-06-15

dist

Updated H-Lib coverage and command-line option documentation. -E preprocessor mode, -I / -isystem search paths.

2026-06-17

core

Wide-integer 128/256/512-bit native types (INT128 / UINT128 / INT256 / UINT256 / INT512 / UINT512) with inline arithmetic. Print support for all wide-integer types. Assembler global directive fix.

V8.1

2026-06-18

core

MSGBOX ? shorthand alias (PB/CC compatible). TBOX timed message box with [d] timeout marker and auto-dismiss thread.

Compiler Characteristics (V8.1)

Pure-C toolchain: No C++ dependencies, single C11 codebase (~245 C source files)

Multi-frontend: PowerBASIC (.pb), B64 (.b64), C17 (.c), inline ASM (.asm)

Self-contained: Parser, IR, optimizer, x64 backend, linker, runtime all in one ~919 KB binary

Test-driven: 1591/1591 tests passing — 250 assembly, 53 PB link+run, 13 B64 link+run, 84 C compile, 2 C link+run

Container library: 23 native H-Lib families with method-dispatch syntax, UDT payload support, [] subscript access, C-frontend API

Win64 ABI: Correct multi-argument calling (5+ args), SSE2 float operations, fixed-register spill for IDIV/CQO

Wide integers: 128 / 256 / 512-bit signed and unsigned, inline arithmetic, no library calls

Zero expected fails: All known limitations fixed and covered by the test lane

Description

Version Milestones

Compiler Characteristics (V8.1)

What Was Deferred (V6 and Beyond)

See also