diff -Nr lua-5.4.8/Makefile lua-5.4.9/Makefile 49c49 < R= $V.8 --- > R= $V.9 diff -Nr lua-5.4.8/README lua-5.4.9/README 2c2 < This is Lua 5.4.8, released on 21 May 2025. --- > This is Lua 5.4.9, released on 10 Aug 2026. Binary files lua-5.4.8/doc/OSIApproved.png and lua-5.4.9/doc/OSIApproved.png differ Binary files lua-5.4.8/doc/OSIApproved_100X125.png and lua-5.4.9/doc/OSIApproved_100X125.png differ diff -Nr lua-5.4.8/doc/contents.html lua-5.4.9/doc/contents.html 13c13 < Lua --- > Lua 35c35 < Copyright © 2020–2025 Lua.org, PUC-Rio. --- > Copyright © 2020–2026 Lua.org, PUC-Rio. 88c88 <
  • 3.4.12 – Lists of expressions, multiple results, and adjustment --- >
  • 3.4.12 – Lists of expressions, multiple results, and adjustment 671c671 < Wed May 21 21:11:33 UTC 2025 --- > Thu Aug 6 00:05:48 UTC 2026 674c674 < Last change: revised for Lua 5.4.8 --- > Last change: revised for Lua 5.4.9 Binary files lua-5.4.8/doc/logo.gif and lua-5.4.9/doc/logo.gif differ Binary files lua-5.4.8/doc/logo.png and lua-5.4.9/doc/logo.png differ diff -Nr lua-5.4.8/doc/manual.css lua-5.4.9/doc/manual.css 9a10,13 > pre.api { > white-space: normal ; > } > diff -Nr lua-5.4.8/doc/manual.html lua-5.4.9/doc/manual.html 13c13 < Lua --- > Lua 22c22 < Copyright © 2020–2025 Lua.org, PUC-Rio. --- > Copyright © 2020–2026 Lua.org, PUC-Rio. 169c169 < according to the usual rules of two-complement arithmetic. --- > according to the usual rules of two's complement arithmetic. 750c750 < and excludes also operations using the debug library.) --- > and it excludes also operations using the debug library.) 2389c2389 < For instance, the table {10, 20, 30, 40, 50} is a sequence, --- > For instance, the table {10,20,30,40,50} is a sequence, 2391c2391 < The table {10, 20, 30, nil, 50} has two borders (3 and 5), --- > The table {10,20,30,nil,50} has two borders (3 and 5), 2394c2394 < The table {nil, 20, 30, nil, nil, 60, nil} --- > The table {nil,20,30,nil,nil,60,nil} 2827c2827 < Here are some examples of uses of mutlres expressions. --- > Here are some examples of uses of multires expressions. 3515c3515 < 
    int lua_absindex (lua_State *L, int idx);
    --- > 
    int lua_absindex (lua_State *L, int idx);
    3527c3527 < 
    typedef void * (*lua_Alloc) (void *ud,
---
> 
    typedef void * (*lua_Alloc) (void *ud,
3605c3605
< 
    void lua_arith (lua_State *L, int op);
    
---
> 
    void lua_arith (lua_State *L, int op);
    
3644c3644
< 
    lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);
    
---
> 
    lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);
    
3655c3655
< 
    void lua_call (lua_State *L, int nargs, int nresults);
    
---
> 
    void lua_call (lua_State *L, int nargs, int nresults);
    
3720c3720
< 
    void lua_callk (lua_State *L,
---
> 
    void lua_callk (lua_State *L,
3735c3735
< 
    typedef int (*lua_CFunction) (lua_State *L);
    
---
> 
    typedef int (*lua_CFunction) (lua_State *L);
    
3787c3787
< 
    int lua_checkstack (lua_State *L, int n);
    
---
> 
    int lua_checkstack (lua_State *L, int n);
    
3807c3807
< 
    void lua_close (lua_State *L);
    
---
> 
    void lua_close (lua_State *L);
    
3829c3829
< 
    void lua_closeslot (lua_State *L, int index);
    
---
> 
    void lua_closeslot (lua_State *L, int index);
    
3851c3851
< 
    int lua_closethread (lua_State *L, lua_State *from);
    
---
> 
    int lua_closethread (lua_State *L, lua_State *from);
    
3880c3880
< 
    int lua_compare (lua_State *L, int index1, int index2, int op);
    
---
> 
    int lua_compare (lua_State *L, int index1, int index2, int op);
    
3908c3908
< 
    void lua_concat (lua_State *L, int n);
    
---
> 
    void lua_concat (lua_State *L, int n);
    
3925c3925
< 
    void lua_copy (lua_State *L, int fromidx, int toidx);
    
---
> 
    void lua_copy (lua_State *L, int fromidx, int toidx);
    
3939c3939
< 
    void lua_createtable (lua_State *L, int narr, int nrec);
    
---
> 
    void lua_createtable (lua_State *L, int narr, int nrec);
    
3958c3958
< 
    int lua_dump (lua_State *L,
---
> 
    int lua_dump (lua_State *L,
3997c3997
< 
    int lua_error (lua_State *L);
    
---
> 
    int lua_error (lua_State *L);
    
4012c4012
< 
    int lua_gc (lua_State *L, int what, ...);
    
---
> 
    int lua_gc (lua_State *L, int what, ...);
    
4083c4083
< 
    lua_Alloc lua_getallocf (lua_State *L, void **ud);
    
---
> 
    lua_Alloc lua_getallocf (lua_State *L, void **ud);
    
4096c4096
< 
    int lua_getfield (lua_State *L, int index, const char *k);
    
---
> 
    int lua_getfield (lua_State *L, int index, const char *k);
    
4114c4114
< 
    void *lua_getextraspace (lua_State *L);
    
---
> 
    void *lua_getextraspace (lua_State *L);
    
4139c4139
< 
    int lua_getglobal (lua_State *L, const char *name);
    
---
> 
    int lua_getglobal (lua_State *L, const char *name);
    
4151c4151
< 
    int lua_geti (lua_State *L, int index, lua_Integer i);
    
---
> 
    int lua_geti (lua_State *L, int index, lua_Integer i);
    
4169c4169
< 
    int lua_getmetatable (lua_State *L, int index);
    
---
> 
    int lua_getmetatable (lua_State *L, int index);
    
4183c4183
< 
    int lua_gettable (lua_State *L, int index);
    
---
> 
    int lua_gettable (lua_State *L, int index);
    
4207c4207
< 
    int lua_gettop (lua_State *L);
    
---
> 
    int lua_gettop (lua_State *L);
    
4221c4221
< 
    int lua_getiuservalue (lua_State *L, int index, int n);
    
---
> 
    int lua_getiuservalue (lua_State *L, int index, int n);
    
4239c4239
< 
    void lua_insert (lua_State *L, int index);
    
---
> 
    void lua_insert (lua_State *L, int index);
    
4252c4252
< 
    typedef ... lua_Integer;
    
---
> 
    typedef ... lua_Integer;
    
4260c4260
< (usually a 64-bit two-complement integer),
---
> (usually a 64-bit two's complement integer),
4262c4262
< (usually a 32-bit two-complement integer).
---
> (usually a 32-bit two's complement integer).
4277c4277
< 
    int lua_isboolean (lua_State *L, int index);
    
---
> 
    int lua_isboolean (lua_State *L, int index);
    
4289c4289
< 
    int lua_iscfunction (lua_State *L, int index);
    
---
> 
    int lua_iscfunction (lua_State *L, int index);
    
4301c4301
< 
    int lua_isfunction (lua_State *L, int index);
    
---
> 
    int lua_isfunction (lua_State *L, int index);
    
4313c4313
< 
    int lua_isinteger (lua_State *L, int index);
    
---
> 
    int lua_isinteger (lua_State *L, int index);
    
4326c4326
< 
    int lua_islightuserdata (lua_State *L, int index);
    
---
> 
    int lua_islightuserdata (lua_State *L, int index);
    
4338c4338
< 
    int lua_isnil (lua_State *L, int index);
    
---
> 
    int lua_isnil (lua_State *L, int index);
    
4350c4350
< 
    int lua_isnone (lua_State *L, int index);
    
---
> 
    int lua_isnone (lua_State *L, int index);
    
4362c4362
< 
    int lua_isnoneornil (lua_State *L, int index);
    
---
> 
    int lua_isnoneornil (lua_State *L, int index);
    
4375c4375
< 
    int lua_isnumber (lua_State *L, int index);
    
---
> 
    int lua_isnumber (lua_State *L, int index);
    
4388c4388
< 
    int lua_isstring (lua_State *L, int index);
    
---
> 
    int lua_isstring (lua_State *L, int index);
    
4401c4401
< 
    int lua_istable (lua_State *L, int index);
    
---
> 
    int lua_istable (lua_State *L, int index);
    
4413c4413
< 
    int lua_isthread (lua_State *L, int index);
    
---
> 
    int lua_isthread (lua_State *L, int index);
    
4425c4425
< 
    int lua_isuserdata (lua_State *L, int index);
    
---
> 
    int lua_isuserdata (lua_State *L, int index);
    
4437c4437
< 
    int lua_isyieldable (lua_State *L);
    
---
> 
    int lua_isyieldable (lua_State *L);
    
4448c4448
< 
    typedef ... lua_KContext;
    
---
> 
    typedef ... lua_KContext;
    
4463c4463
< 
    typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
    
---
> 
    typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
    
4474c4474
< 
    void lua_len (lua_State *L, int index);
    
---
> 
    void lua_len (lua_State *L, int index);
    
4488c4488
< 
    int lua_load (lua_State *L,
---
> 
    int lua_load (lua_State *L,
4548c4548
< 
    lua_State *lua_newstate (lua_Alloc f, void *ud);
    
---
> 
    lua_State *lua_newstate (lua_Alloc f, void *ud);
    
4566c4566
< 
    void lua_newtable (lua_State *L);
    
---
> 
    void lua_newtable (lua_State *L);
    
4570c4570
< It is equivalent to lua_createtable(L, 0, 0).
---
> It is equivalent to lua_createtable(L,0,0).
4578c4578
< 
    lua_State *lua_newthread (lua_State *L);
    
---
> 
    lua_State *lua_newthread (lua_State *L);
    
4598c4598
< 
    void *lua_newuserdatauv (lua_State *L, size_t size, int nuvalue);
    
---
> 
    void *lua_newuserdatauv (lua_State *L, size_t size, int nuvalue);
    
4621c4621
< 
    int lua_next (lua_State *L, int index);
    
---
> 
    int lua_next (lua_State *L, int index);
    
4667c4667
< 
    typedef ... lua_Number;
    
---
> 
    typedef ... lua_Number;
    
4683c4683
< 
    int lua_numbertointeger (lua_Number n, lua_Integer *p);
    
---
> 
    int lua_numbertointeger (lua_Number n, lua_Integer *p);
    
4705c4705
< 
    int lua_pcall (lua_State *L, int nargs, int nresults, int msgh);
    
---
> 
    int lua_pcall (lua_State *L, int nargs, int nresults, int msgh);
    
4755c4755
< 
    int lua_pcallk (lua_State *L,
---
> 
    int lua_pcallk (lua_State *L,
4772c4772
< 
    void lua_pop (lua_State *L, int n);
    
---
> 
    void lua_pop (lua_State *L, int n);
    
4784c4784
< 
    void lua_pushboolean (lua_State *L, int b);
    
---
> 
    void lua_pushboolean (lua_State *L, int b);
    
4795c4795
< 
    void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);
    
---
> 
    void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);
    
4844c4844
< 
    void lua_pushcfunction (lua_State *L, lua_CFunction f);
    
---
> 
    void lua_pushcfunction (lua_State *L, lua_CFunction f);
    
4856c4856
< 
    const char *lua_pushfstring (lua_State *L, const char *fmt, ...);
    
---
> 
    const char *lua_pushfstring (lua_State *L, const char *fmt, ...);
    
4891c4891
< 
    void lua_pushglobaltable (lua_State *L);
    
---
> 
    void lua_pushglobaltable (lua_State *L);
    
4902c4902
< 
    void lua_pushinteger (lua_State *L, lua_Integer n);
    
---
> 
    void lua_pushinteger (lua_State *L, lua_Integer n);
    
4913c4913
< 
    void lua_pushlightuserdata (lua_State *L, void *p);
    
---
> 
    void lua_pushlightuserdata (lua_State *L, void *p);
    
4934c4934
< 
    const char *lua_pushliteral (lua_State *L, const char *s);
    
---
> 
    const char *lua_pushliteral (lua_State *L, const char *s);
    
4947c4947
< 
    const char *lua_pushlstring (lua_State *L, const char *s, size_t len);
    
---
> 
    const char *lua_pushlstring (lua_State *L, const char *s, size_t len);
    
4968c4968
< 
    void lua_pushnil (lua_State *L);
    
---
> 
    void lua_pushnil (lua_State *L);
    
4979c4979
< 
    void lua_pushnumber (lua_State *L, lua_Number n);
    
---
> 
    void lua_pushnumber (lua_State *L, lua_Number n);
    
4990c4990
< 
    const char *lua_pushstring (lua_State *L, const char *s);
    
---
> 
    const char *lua_pushstring (lua_State *L, const char *s);
    
5013c5013
< 
    int lua_pushthread (lua_State *L);
    
---
> 
    int lua_pushthread (lua_State *L);
    
5025c5025
< 
    void lua_pushvalue (lua_State *L, int index);
    
---
> 
    void lua_pushvalue (lua_State *L, int index);
    
5037c5037
< 
    const char *lua_pushvfstring (lua_State *L,
---
> 
    const char *lua_pushvfstring (lua_State *L,
5051c5051
< 
    int lua_rawequal (lua_State *L, int index1, int index2);
    
---
> 
    int lua_rawequal (lua_State *L, int index1, int index2);
    
5066c5066
< 
    int lua_rawget (lua_State *L, int index);
    
---
> 
    int lua_rawget (lua_State *L, int index);
    
5079c5079
< 
    int lua_rawgeti (lua_State *L, int index, lua_Integer n);
    
---
> 
    int lua_rawgeti (lua_State *L, int index, lua_Integer n);
    
5097c5097
< 
    int lua_rawgetp (lua_State *L, int index, const void *p);
    
---
> 
    int lua_rawgetp (lua_State *L, int index, const void *p);
    
5116c5116
< 
    lua_Unsigned lua_rawlen (lua_State *L, int index);
    
---
> 
    lua_Unsigned lua_rawlen (lua_State *L, int index);
    
5133c5133
< 
    void lua_rawset (lua_State *L, int index);
    
---
> 
    void lua_rawset (lua_State *L, int index);
    
5146c5146
< 
    void lua_rawseti (lua_State *L, int index, lua_Integer i);
    
---
> 
    void lua_rawseti (lua_State *L, int index, lua_Integer i);
    
5165c5165
< 
    void lua_rawsetp (lua_State *L, int index, const void *p);
    
---
> 
    void lua_rawsetp (lua_State *L, int index, const void *p);
    
5184c5184
< 
    typedef const char * (*lua_Reader) (lua_State *L,
---
> 
    typedef const char * (*lua_Reader) (lua_State *L,
5207c5207
< 
    void lua_register (lua_State *L, const char *name, lua_CFunction f);
    
---
> 
    void lua_register (lua_State *L, const char *name, lua_CFunction f);
    
5223c5223
< 
    void lua_remove (lua_State *L, int index);
    
---
> 
    void lua_remove (lua_State *L, int index);
    
5237c5237
< 
    void lua_replace (lua_State *L, int index);
    
---
> 
    void lua_replace (lua_State *L, int index);
    
5251c5251
< 
    int lua_resetthread (lua_State *L);
    
---
> 
    int lua_resetthread (lua_State *L);
    
5264c5264
< 
    int lua_resume (lua_State *L, lua_State *from, int nargs,
---
> 
    int lua_resume (lua_State *L, lua_State *from, int nargs,
5310c5310
< 
    void lua_rotate (lua_State *L, int idx, int n);
    
---
> 
    void lua_rotate (lua_State *L, int idx, int n);
    
5330c5330
< 
    void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
    
---
> 
    void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
    
5342c5342
< 
    void lua_setfield (lua_State *L, int index, const char *k);
    
---
> 
    void lua_setfield (lua_State *L, int index, const char *k);
    
5361c5361
< 
    void lua_setglobal (lua_State *L, const char *name);
    
---
> 
    void lua_setglobal (lua_State *L, const char *name);
    
5373c5373
< 
    void lua_seti (lua_State *L, int index, lua_Integer n);
    
---
> 
    void lua_seti (lua_State *L, int index, lua_Integer n);
    
5392c5392
< 
    int lua_setiuservalue (lua_State *L, int index, int n);
    
---
> 
    int lua_setiuservalue (lua_State *L, int index, int n);
    
5406c5406
< 
    int lua_setmetatable (lua_State *L, int index);
    
---
> 
    int lua_setmetatable (lua_State *L, int index);
    
5424c5424
< 
    void lua_settable (lua_State *L, int index);
    
---
> 
    void lua_settable (lua_State *L, int index);
    
5444c5444
< 
    void lua_settop (lua_State *L, int index);
    
---
> 
    void lua_settop (lua_State *L, int index);
    
5464c5464
< 
    void lua_setwarnf (lua_State *L, lua_WarnFunction f, void *ud);
    
---
> 
    void lua_setwarnf (lua_State *L, lua_WarnFunction f, void *ud);
    
5477c5477
< 
    typedef struct lua_State lua_State;
    
---
> 
    typedef struct lua_State lua_State;
    
5498c5498
< 
    int lua_status (lua_State *L);
    
---
> 
    int lua_status (lua_State *L);
    
5523c5523
< 
    size_t lua_stringtonumber (lua_State *L, const char *s);
    
---
> 
    size_t lua_stringtonumber (lua_State *L, const char *s);
    
5544c5544
< 
    int lua_toboolean (lua_State *L, int index);
    
---
> 
    int lua_toboolean (lua_State *L, int index);
    
5562c5562
< 
    lua_CFunction lua_tocfunction (lua_State *L, int index);
    
---
> 
    lua_CFunction lua_tocfunction (lua_State *L, int index);
    
5575c5575
< 
    void lua_toclose (lua_State *L, int index);
    
---
> 
    void lua_toclose (lua_State *L, int index);
    
5617c5617
< 
    lua_Integer lua_tointeger (lua_State *L, int index);
    
---
> 
    lua_Integer lua_tointeger (lua_State *L, int index);
    
5628c5628
< 
    lua_Integer lua_tointegerx (lua_State *L, int index, int *isnum);
    
---
> 
    lua_Integer lua_tointegerx (lua_State *L, int index, int *isnum);
    
5649c5649
< 
    const char *lua_tolstring (lua_State *L, int index, size_t *len);
    
---
> 
    const char *lua_tolstring (lua_State *L, int index, size_t *len);
    
5683c5683
< 
    lua_Number lua_tonumber (lua_State *L, int index);
    
---
> 
    lua_Number lua_tonumber (lua_State *L, int index);
    
5694c5694
< 
    lua_Number lua_tonumberx (lua_State *L, int index, int *isnum);
    
---
> 
    lua_Number lua_tonumberx (lua_State *L, int index, int *isnum);
    
5715c5715
< 
    const void *lua_topointer (lua_State *L, int index);
    
---
> 
    const void *lua_topointer (lua_State *L, int index);
    
5735c5735
< 
    const char *lua_tostring (lua_State *L, int index);
    
---
> 
    const char *lua_tostring (lua_State *L, int index);
    
5746c5746
< 
    lua_State *lua_tothread (lua_State *L, int index);
    
---
> 
    lua_State *lua_tothread (lua_State *L, int index);
    
5760c5760
< 
    void *lua_touserdata (lua_State *L, int index);
    
---
> 
    void *lua_touserdata (lua_State *L, int index);
    
5775c5775
< 
    int lua_type (lua_State *L, int index);
    
---
> 
    int lua_type (lua_State *L, int index);
    
5799c5799
< 
    const char *lua_typename (lua_State *L, int tp);
    
---
> 
    const char *lua_typename (lua_State *L, int tp);
    
5810c5810
< 
    typedef ... lua_Unsigned;
    
---
> 
    typedef ... lua_Unsigned;
    
5821c5821
< 
    int lua_upvalueindex (int i);
    
---
> 
    int lua_upvalueindex (int i);
    
5834c5834
< 
    lua_Number lua_version (lua_State *L);
    
---
> 
    lua_Number lua_version (lua_State *L);
    
5844c5844
< 
    typedef void (*lua_WarnFunction) (void *ud, const char *msg, int tocont);
    
---
> 
    typedef void (*lua_WarnFunction) (void *ud, const char *msg, int tocont);
    
5865c5865
< 
    void lua_warning (lua_State *L, const char *msg, int tocont);
    
---
> 
    void lua_warning (lua_State *L, const char *msg, int tocont);
    
5881c5881
< 
    typedef int (*lua_Writer) (lua_State *L,
---
> 
    typedef int (*lua_Writer) (lua_State *L,
5907c5907
< 
    void lua_xmove (lua_State *from, lua_State *to, int n);
    
---
> 
    void lua_xmove (lua_State *from, lua_State *to, int n);
    
5923c5923
< 
    int lua_yield (lua_State *L, int nresults);
    
---
> 
    int lua_yield (lua_State *L, int nresults);
    
5940c5940
< 
    int lua_yieldk (lua_State *L,
---
> 
    int lua_yieldk (lua_State *L,
6012c6012
< 
    typedef struct lua_Debug {
---
> 
    typedef struct lua_Debug {
6155c6155
< 
    lua_Hook lua_gethook (lua_State *L);
    
---
> 
    lua_Hook lua_gethook (lua_State *L);
    
6166c6166
< 
    int lua_gethookcount (lua_State *L);
    
---
> 
    int lua_gethookcount (lua_State *L);
    
6177c6177
< 
    int lua_gethookmask (lua_State *L);
    
---
> 
    int lua_gethookmask (lua_State *L);
    
6188c6188
< 
    int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
    
---
> 
    int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
    
6274c6274
< 
    const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
    
---
> 
    const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
    
6315c6315
< 
    int lua_getstack (lua_State *L, int level, lua_Debug *ar);
    
---
> 
    int lua_getstack (lua_State *L, int level, lua_Debug *ar);
    
6338c6338
< 
    const char *lua_getupvalue (lua_State *L, int funcindex, int n);
    
---
> 
    const char *lua_getupvalue (lua_State *L, int funcindex, int n);
    
6357c6357
< 
    typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
    
---
> 
    typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
    
6406c6406
< 
    void lua_sethook (lua_State *L, lua_Hook f, int mask, int count);
    
---
> 
    void lua_sethook (lua_State *L, lua_Hook f, int mask, int count);
    
6456c6456
< 
    const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
    
---
> 
    const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
    
6480c6480
< 
    const char *lua_setupvalue (lua_State *L, int funcindex, int n);
    
---
> 
    const char *lua_setupvalue (lua_State *L, int funcindex, int n);
    
6504c6504
< 
    void *lua_upvalueid (lua_State *L, int funcindex, int n);
    
---
> 
    void *lua_upvalueid (lua_State *L, int funcindex, int n);
    
6530c6530
< 
    void lua_upvaluejoin (lua_State *L, int funcindex1, int n1,
---
> 
    void lua_upvaluejoin (lua_State *L, int funcindex1, int n1,
6605c6605
< 
    void luaL_addchar (luaL_Buffer *B, char c);
    
---
> 
    void luaL_addchar (luaL_Buffer *B, char c);
    
6617c6617
< 
    const void luaL_addgsub (luaL_Buffer *B, const char *s,
---
> 
    const void luaL_addgsub (luaL_Buffer *B, const char *s,
6631c6631
< 
    void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);
    
---
> 
    void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);
    
6645c6645
< 
    void luaL_addsize (luaL_Buffer *B, size_t n);
    
---
> 
    void luaL_addsize (luaL_Buffer *B, size_t n);
    
6658c6658
< 
    void luaL_addstring (luaL_Buffer *B, const char *s);
    
---
> 
    void luaL_addstring (luaL_Buffer *B, const char *s);
    
6671c6671
< 
    void luaL_addvalue (luaL_Buffer *B);
    
---
> 
    void luaL_addvalue (luaL_Buffer *B);
    
6691c6691
< 
    void luaL_argcheck (lua_State *L,
---
> 
    void luaL_argcheck (lua_State *L,
6706c6706
< 
    int luaL_argerror (lua_State *L, int arg, const char *extramsg);
    
---
> 
    int luaL_argerror (lua_State *L, int arg, const char *extramsg);
    
6725c6725
< 
    void luaL_argexpected (lua_State *L,
---
> 
    void luaL_argexpected (lua_State *L,
6740c6740
< 
    typedef struct luaL_Buffer luaL_Buffer;
    
---
> 
    typedef struct luaL_Buffer luaL_Buffer;
    
6812c6812
< 
    char *luaL_buffaddr (luaL_Buffer *B);
    
---
> 
    char *luaL_buffaddr (luaL_Buffer *B);
    
6825c6825
< 
    void luaL_buffinit (lua_State *L, luaL_Buffer *B);
    
---
> 
    void luaL_buffinit (lua_State *L, luaL_Buffer *B);
    
6839c6839
< 
    size_t luaL_bufflen (luaL_Buffer *B);
    
---
> 
    size_t luaL_bufflen (luaL_Buffer *B);
    
6851c6851
< 
    char *luaL_buffinitsize (lua_State *L, luaL_Buffer *B, size_t sz);
    
---
> 
    char *luaL_buffinitsize (lua_State *L, luaL_Buffer *B, size_t sz);
    
6863c6863
< 
    void luaL_buffsub (luaL_Buffer *B, int n);
    
---
> 
    void luaL_buffsub (luaL_Buffer *B, int n);
    
6876c6876
< 
    int luaL_callmeta (lua_State *L, int obj, const char *e);
    
---
> 
    int luaL_callmeta (lua_State *L, int obj, const char *e);
    
6897c6897
< 
    void luaL_checkany (lua_State *L, int arg);
    
---
> 
    void luaL_checkany (lua_State *L, int arg);
    
6909c6909
< 
    lua_Integer luaL_checkinteger (lua_State *L, int arg);
    
---
> 
    lua_Integer luaL_checkinteger (lua_State *L, int arg);
    
6922c6922
< 
    const char *luaL_checklstring (lua_State *L, int arg, size_t *l);
    
---
> 
    const char *luaL_checklstring (lua_State *L, int arg, size_t *l);
    
6941c6941
< 
    lua_Number luaL_checknumber (lua_State *L, int arg);
    
---
> 
    lua_Number luaL_checknumber (lua_State *L, int arg);
    
6953c6953
< 
    int luaL_checkoption (lua_State *L,
---
> 
    int luaL_checkoption (lua_State *L,
6984c6984
< 
    void luaL_checkstack (lua_State *L, int sz, const char *msg);
    
---
> 
    void luaL_checkstack (lua_State *L, int sz, const char *msg);
    
6998c6998
< 
    const char *luaL_checkstring (lua_State *L, int arg);
    
---
> 
    const char *luaL_checkstring (lua_State *L, int arg);
    
7015c7015
< 
    void luaL_checktype (lua_State *L, int arg, int t);
    
---
> 
    void luaL_checktype (lua_State *L, int arg, int t);
    
7027c7027
< 
    void *luaL_checkudata (lua_State *L, int arg, const char *tname);
    
---
> 
    void *luaL_checkudata (lua_State *L, int arg, const char *tname);
    
7040c7040
< 
    void luaL_checkversion (lua_State *L);
    
---
> 
    void luaL_checkversion (lua_State *L);
    
7052c7052
< 
    int luaL_dofile (lua_State *L, const char *filename);
    
---
> 
    int luaL_dofile (lua_State *L, const char *filename);
    
7070c7070
< 
    int luaL_dostring (lua_State *L, const char *str);
    
---
> 
    int luaL_dostring (lua_State *L, const char *str);
    
7088c7088
< 
    int luaL_error (lua_State *L, const char *fmt, ...);
    
---
> 
    int luaL_error (lua_State *L, const char *fmt, ...);
    
7111c7111
< 
    int luaL_execresult (lua_State *L, int stat);
    
---
> 
    int luaL_execresult (lua_State *L, int stat);
    
7124c7124
< 
    int luaL_fileresult (lua_State *L, int stat, const char *fname);
    
---
> 
    int luaL_fileresult (lua_State *L, int stat, const char *fname);
    
7137c7137
< 
    int luaL_getmetafield (lua_State *L, int obj, const char *e);
    
---
> 
    int luaL_getmetafield (lua_State *L, int obj, const char *e);
    
7152c7152
< 
    int luaL_getmetatable (lua_State *L, const char *tname);
    
---
> 
    int luaL_getmetatable (lua_State *L, const char *tname);
    
7166c7166
< 
    int luaL_getsubtable (lua_State *L, int idx, const char *fname);
    
---
> 
    int luaL_getsubtable (lua_State *L, int idx, const char *fname);
    
7182c7182
< 
    const char *luaL_gsub (lua_State *L,
---
> 
    const char *luaL_gsub (lua_State *L,
7199c7199
< 
    lua_Integer luaL_len (lua_State *L, int index);
    
---
> 
    lua_Integer luaL_len (lua_State *L, int index);
    
7214c7214
< 
    int luaL_loadbuffer (lua_State *L,
---
> 
    int luaL_loadbuffer (lua_State *L,
7228c7228
< 
    int luaL_loadbufferx (lua_State *L,
---
> 
    int luaL_loadbufferx (lua_State *L,
7252c7252
< 
    int luaL_loadfile (lua_State *L, const char *filename);
    
---
> 
    int luaL_loadfile (lua_State *L, const char *filename);
    
7263c7263
< 
    int luaL_loadfilex (lua_State *L, const char *filename,
---
> 
    int luaL_loadfilex (lua_State *L, const char *filename,
7294c7294
< 
    int luaL_loadstring (lua_State *L, const char *s);
    
---
> 
    int luaL_loadstring (lua_State *L, const char *s);
    
7316c7316
< 
    void luaL_newlib (lua_State *L, const luaL_Reg l[]);
    
---
> 
    void luaL_newlib (lua_State *L, const luaL_Reg l[]);
    
7338c7338
< 
    void luaL_newlibtable (lua_State *L, const luaL_Reg l[]);
    
---
> 
    void luaL_newlibtable (lua_State *L, const luaL_Reg l[]);
    
7359c7359
< 
    int luaL_newmetatable (lua_State *L, const char *tname);
    
---
> 
    int luaL_newmetatable (lua_State *L, const char *tname);
    
7382c7382
< 
    lua_State *luaL_newstate (void);
    
---
> 
    lua_State *luaL_newstate (void);
    
7402c7402
< 
    void luaL_openlibs (lua_State *L);
    
---
> 
    void luaL_openlibs (lua_State *L);
    
7413c7413
< 
    T luaL_opt (L, func, arg, dflt);
    
---
> 
    T luaL_opt (L, func, arg, dflt);
    
7434c7434
< 
    lua_Integer luaL_optinteger (lua_State *L,
---
> 
    lua_Integer luaL_optinteger (lua_State *L,
7452c7452
< 
    const char *luaL_optlstring (lua_State *L,
---
> 
    const char *luaL_optlstring (lua_State *L,
7483c7483
< 
    lua_Number luaL_optnumber (lua_State *L, int arg, lua_Number d);
    
---
> 
    lua_Number luaL_optnumber (lua_State *L, int arg, lua_Number d);
    
7498c7498
< 
    const char *luaL_optstring (lua_State *L,
---
> 
    const char *luaL_optstring (lua_State *L,
7515c7515
< 
    char *luaL_prepbuffer (luaL_Buffer *B);
    
---
> 
    char *luaL_prepbuffer (luaL_Buffer *B);
    
7527c7527
< 
    char *luaL_prepbuffsize (luaL_Buffer *B, size_t sz);
    
---
> 
    char *luaL_prepbuffsize (luaL_Buffer *B, size_t sz);
    
7543c7543
< 
    void luaL_pushfail (lua_State *L);
    
---
> 
    void luaL_pushfail (lua_State *L);
    
7554c7554
< 
    void luaL_pushresult (luaL_Buffer *B);
    
---
> 
    void luaL_pushresult (luaL_Buffer *B);
    
7566c7566
< 
    void luaL_pushresultsize (luaL_Buffer *B, size_t sz);
    
---
> 
    void luaL_pushresultsize (luaL_Buffer *B, size_t sz);
    
7577c7577
< 
    int luaL_ref (lua_State *L, int t);
    
---
> 
    int luaL_ref (lua_State *L, int t);
    
7605c7605
< 
    typedef struct luaL_Reg {
---
> 
    typedef struct luaL_Reg {
7624c7624
< 
    void luaL_requiref (lua_State *L, const char *modname,
---
> 
    void luaL_requiref (lua_State *L, const char *modname,
7648c7648
< 
    void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup);
    
---
> 
    void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup);
    
7675c7675
< 
    void luaL_setmetatable (lua_State *L, const char *tname);
    
---
> 
    void luaL_setmetatable (lua_State *L, const char *tname);
    
7687c7687
< 
    typedef struct luaL_Stream {
---
> 
    typedef struct luaL_Stream {
7726c7726
< 
    void *luaL_testudata (lua_State *L, int arg, const char *tname);
    
---
> 
    void *luaL_testudata (lua_State *L, int arg, const char *tname);
    
7739c7739
< 
    const char *luaL_tolstring (lua_State *L, int idx, size_t *len);
    
---
> 
    const char *luaL_tolstring (lua_State *L, int idx, size_t *len);
    
7762c7762
< 
    void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
---
> 
    void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
7778c7778
< 
    int luaL_typeerror (lua_State *L, int arg, const char *tname);
    
---
> 
    int luaL_typeerror (lua_State *L, int arg, const char *tname);
    
7793c7793
< 
    const char *luaL_typename (lua_State *L, int index);
    
---
> 
    const char *luaL_typename (lua_State *L, int index);
    
7804c7804
< 
    void luaL_unref (lua_State *L, int t, int ref);
    
---
> 
    void luaL_unref (lua_State *L, int t, int ref);
    
7824c7824
< 
    void luaL_where (lua_State *L, int lvl);
    
---
> 
    void luaL_where (lua_State *L, int lvl);
    
12053c12053
< Wed May 21 21:09:59 UTC 2025
---
> Fri Aug  7 20:25:45 UTC 2026
12056c12056
< Last change: revised for Lua 5.4.8
---
> Last change: revised for Lua 5.4.9
diff -Nr lua-5.4.8/doc/readme.html lua-5.4.9/doc/readme.html
32c32
< Lua
---
> Lua
89,90c89,90
< Lua is implemented in pure ANSI C and compiles unmodified in all known
< platforms that have an ANSI C compiler.
---
> Lua is implemented in pure ISO C and compiles unmodified in all known
> platforms that have an ISO C compiler.
112c112
< the top-level directory, which is named lua-5.4.8.
---
> the top-level directory, which is named lua-5.4.9.
290c290
< [Open Source Initiative Approved License]
---
> [Open Source Initiative Approved License]
305c305
< Copyright © 1994–2025 Lua.org, PUC-Rio.
---
> Copyright © 1994–2026 Lua.org, PUC-Rio.
332c332
< Wed May 21 21:12:01 UTC 2025
---
> Wed Aug  5 21:42:45 UTC 2026
335c335
< Last change: revised for Lua 5.4.8
---
> Last change: revised for Lua 5.4.9
diff -Nr lua-5.4.8/src/lapi.c lua-5.4.9/src/lapi.c
1091a1092
>   luaC_checkGC(L);
diff -Nr lua-5.4.8/src/lauxlib.c lua-5.4.9/src/lauxlib.c
503a504,517
> /*
> ** Get/create metatable (MT) for boxes
> */
> static void getBoxMT (lua_State *L) {
>   const char *BOXMT = "_UBOX*"; /* key for the metatable */
>   if (luaL_getmetatable(L, BOXMT) == LUA_TNIL) {  /* MT not created yet? */
>     luaL_newlibtable(L, boxmt);  /* create it */
>     luaL_setfuncs(L, boxmt, 0);  /* initialize it */
>     lua_copy(L, -1, -2);  /* change stack from nil,MT to MT,MT */
>     lua_setfield(L, LUA_REGISTRYINDEX, BOXMT);  /* store MT in the registry */
>   }
> }
> 
> 
508,509c522
<   if (luaL_newmetatable(L, "_UBOX*"))  /* creating metatable? */
<     luaL_setfuncs(L, boxmt, 0);  /* set its metamethods */
---
>   getBoxMT(L);
diff -Nr lua-5.4.8/src/ldo.c lua-5.4.9/src/ldo.c
208a209,227
> ** Check whether stacks have enough space to run a simple function (such
> ** as a finalizer): At least BASIC_STACK_SIZE in the Lua stack, two
> ** available CallInfos, and two "slots" in the C stack.
> */
> int luaD_checkminstack (lua_State *L) {
>   if (getCcalls(L) >= LUAI_MAXCCALLS - 2)
>     return 0;  /* not enough C-stack slots */
>   if (L->ci->next == NULL && luaE_extendCI(L, 0) == NULL)
>     return 0;  /* unable to allocate first ci */
>   if (L->ci->next->next == NULL && luaE_extendCI(L, 0) == NULL)
>     return 0;  /* unable to allocate second ci */
>   if (L->stack_last.p - L->top.p >= BASIC_STACK_SIZE)
>     return 1;  /* enough (BASIC_STACK_SIZE) free slots in the Lua stack */
>   else  /* try to grow stack to a size with enough free slots */
>     return luaD_growstack(L, BASIC_STACK_SIZE, 0);
> }
> 
> 
> /*
506c525
< #define next_ci(L)  (L->ci->next ? L->ci->next : luaE_extendCI(L))
---
> #define next_ci(L)  (L->ci->next ? L->ci->next : luaE_extendCI(L, 1))
diff -Nr lua-5.4.8/src/ldo.h lua-5.4.9/src/ldo.h
82a83
> LUAI_FUNC int luaD_checkminstack (lua_State *L);
diff -Nr lua-5.4.8/src/lgc.c lua-5.4.9/src/lgc.c
556,557c556,561
<     else  /* all weak */
<       linkgclist(h, g->allweak);  /* nothing to traverse now */
---
>     else {  /* all weak */
>       if (g->gcstate == GCSpropagate)
>         linkgclist(h, g->grayagain);  /* must visit again its metatable */
>       else
>         linkgclist(h, g->allweak);  /* must clear collected entries */
>     }
1241c1245
<   if (!g->gcemergency)
---
>   if (g->tobefnz != NULL && !g->gcemergency && luaD_checkminstack(L))
1631c1635
<       if (g->tobefnz && !g->gcemergency) {
---
>       if (g->tobefnz && !g->gcemergency && luaD_checkminstack(L)) {
1635c1639,1640
<       else {  /* emergency mode or no more finalizers */
---
>       else {  /* no more finalizers or emergency mode or no enough stack
>                  to run finalizers */
diff -Nr lua-5.4.8/src/lparser.c lua-5.4.9/src/lparser.c
942a943,944
>     checklimit(fs, cc.tostore + cc.na + cc.nh, INT_MAX/2,
>                "items in a constructor");
diff -Nr lua-5.4.8/src/lstate.c lua-5.4.9/src/lstate.c
105c105
< CallInfo *luaE_extendCI (lua_State *L) {
---
> CallInfo *luaE_extendCI (lua_State *L, int err) {
107,110c107,113
<   lua_assert(L->ci->next == NULL);
<   ci = luaM_new(L, CallInfo);
<   lua_assert(L->ci->next == NULL);
<   L->ci->next = ci;
---
>   ci = luaM_reallocvector(L, NULL, 0, 1, CallInfo);
>   if (l_unlikely(ci == NULL)) {  /* allocation failed? */
>     if (err)
>       luaM_error(L);  /* raise the error */
>     return NULL;  /* else only report it */
>   }
>   ci->next = L->ci->next;
112c115,117
<   ci->next = NULL;
---
>   L->ci->next = ci;
>   if (ci->next)
>     ci->next->previous = ci;
diff -Nr lua-5.4.8/src/lstate.h lua-5.4.9/src/lstate.h
398c398
< LUAI_FUNC CallInfo *luaE_extendCI (lua_State *L);
---
> LUAI_FUNC CallInfo *luaE_extendCI (lua_State *L, int err);
diff -Nr lua-5.4.8/src/lstrlib.c lua-5.4.9/src/lstrlib.c
760d759
<   ms->matchdepth = MAXCCALLS;
767a767
>   ms->matchdepth = MAXCCALLS;
769d768
<   lua_assert(ms->matchdepth == MAXCCALLS);
diff -Nr lua-5.4.8/src/lua.c lua-5.4.9/src/lua.c
305c305,306
<         *first = i + 1;
---
>         /* if there is a script name, it comes after '--' */
>         *first = (argv[i + 1] != NULL) ? i + 1 : 0;
diff -Nr lua-5.4.8/src/lua.h lua-5.4.9/src/lua.h
21c21
< #define LUA_VERSION_RELEASE	"8"
---
> #define LUA_VERSION_RELEASE	"9"
24c24
< #define LUA_VERSION_RELEASE_NUM		(LUA_VERSION_NUM * 100 + 8)
---
> #define LUA_VERSION_RELEASE_NUM		(LUA_VERSION_NUM * 100 + 9)
28c28
< #define LUA_COPYRIGHT	LUA_RELEASE "  Copyright (C) 1994-2025 Lua.org, PUC-Rio"
---
> #define LUA_COPYRIGHT	LUA_RELEASE "  Copyright (C) 1994-2026 Lua.org, PUC-Rio"
500c500
< * Copyright (C) 1994-2025 Lua.org, PUC-Rio.
---
> * Copyright (C) 1994-2026 Lua.org, PUC-Rio.
diff -Nr lua-5.4.8/src/lutf8lib.c lua-5.4.9/src/lutf8lib.c
67a68,69
>   else if (c >= 0xfe)  /* c >= 1111 1110b ? */
>     return NULL;  /* would need six or more continuation bytes */
77c79
<     if (count > 5 || res > MAXUTF || res < limits[count])
---
>     if (res > MAXUTF || res < limits[count])
diff -Nr lua-5.4.8/src/lvm.c lua-5.4.9/src/lvm.c
364c364,369
<       luaV_finishfastset(L, t, slot, val);
---
>       /* execute 'luaV_finishfastset', but preserving the original 't'
>          for the barrier. 't' and 'slot' can point to the same value,
>          and so the assignment can change 't' value */
>       GCObject *h = gcvalue(t);
>       setobj2t(L, cast(TValue *,slot), val);
>       luaC_barrierback(L, h, val);