Revision history for Ancient

0.18    2026-02-03
        - Fix C23 bool/true/false compatibility across all XS modules
          * Old Perl defines 'bool' but not 'true'/'false' - now handled
          * Updated 6 compat headers with proper C23 guards
        - Add xt/c-compat.t author test for C standard compatibility
          * Checks for C23 keyword conflicts (bool, true, false, nullptr)
          * Checks for C89/C99 portability issues
          * Checks for unsafe functions (sprintf, strcpy, gets)
          * Checks for compiler-specific extensions

0.17    2026-02-03
        - object: Add DEMOLISH support for destructor callbacks
          * Define DEMOLISH method in class, auto-wrapped DESTROY installed
          * Zero overhead: wrapper only installed if DEMOLISH exists
        - object: Add Role system for reusable slot/method bundles
          * object::role($name, @slots) - define a role with slots
          * object::requires($role, @methods) - declare required methods
          * object::with($class, @roles) - compose roles into class
          * object::does($obj, $role) - check role consumption
          * Copies slots and methods, validates required methods
        - object: Add Method Modifiers (before/after/around)
          * object::before('Class::method', \&callback)
          * object::after('Class::method', \&callback)
          * object::around('Class::method', sub { my ($orig, $self) = @_; ... })
          * Multiple modifiers stack correctly
          * Zero overhead: wrapper only installed when modifier added
        - object: Add lazy/builder support for deferred slot initialization
          * 'slot:Type:lazy:builder(_build_method)' syntax
          * Value computed on first access, cached thereafter
        - object: Add clearer/predicate support
          * 'slot:Type:clearer' installs clear_slot() method
          * 'slot:Type:predicate' installs has_slot() method
        - Add GvCV_set, HvNAMELEN, newXS_flags compat macros for Perl 5.10
        - All new features have zero overhead when not used
        - Updated POD documentation for all new features

0.16    2026-02-03
        - Fix pad_alloc undefined symbol on Perl 5.14.x-5.15.x (FreeBSD 5.14.4)
          by correcting version check from 5.14 to 5.16 in util_compat.h and
          nvec_compat.h (pad_alloc not exported until 5.15.1)
        - Fix Perl_xs_boot_epilog macro argument mismatch on threaded Perl 5.16
          (FreeBSD 5.16.3-thread-multi) by using PERL_IMPLICIT_CONTEXT instead
          of USE_ITHREADS for context detection in all *_compat.h headers
        - Fix PADNAMEf_CONST redefinition warning in slot.c
        - Skip const leak tests on Perl < 5.16 to avoid "Bizarre copy of UNKNOWN"
          errors with readonly SVs on older Perls (FreeBSD 5.14.4)

0.15    2026-02-02
        - Fix quadmath compatibility: use NVgf format macro instead of %g
          in nvec stringify to prevent panic on __float128 builds
        - Fix PadnameFLAGS undefined symbol on Perl 5.18-5.21 (FreeBSD 5.20.2)
          by adding compatibility shim in slot_compat.h
        - Fix "Bad plan" test failures on systems with XS linking issues
          by moving skip_all checks before any test output
        - Enhanced TestVec.pm with multiple float comparison methods:
          * Relative epsilon comparison (default, handles all magnitudes)
          * ULP (Units in Last Place) comparison for rigorous testing
          * Exact bit comparison for strict equality
          * Automatic NV type detection (double/long double/quadmath)
        - Improved test compatibility across Perl versions 5.10-5.40