Changes in the luatexbase package/bundle

2013/04/13 v0.5
    mcb and loader
        - compatibility with Lua 5.2 (LuaTeX >= 0.74)
    loader
        - fix an important bug making the kpse lua loader never used,
          it should make package searching a bit faster.
        - dropping support for LuaTeX < 0.45.
        - small improvement to make x.y.lua look for x/y.lua, not 
          x/y/lua.

2011/00/24 v0.4
    cctb
        - implement catcode table stacks à la luatex.sty
        - fix \CatcodeTableLaTeX(Package): 10 (newline aka ^^J) was catcoded
          15 instead of 12
        - rename \setcatcoderange to \SetCatcodeRange (the old name remains
          for compatibility but  will be removed in the next version)
    luatex 0.5
        - new package replacing luatex.sty from the oberdiek bundle
          (see luatex.pdf for details)

2011/05/21 v0.31
    attr
        - Bugfix: \unsetluatexattribute didn't work (reported by Dohyun Kim)

2010/10/10 v0.3
    [BI] marks backward-incompatible changes
    all   not using LuaTeX results in an error (formerly a warning)
    modutils
        - [BI] \luatexUseModule and \luatexRequireModule replaced by
          \RequireLuaModule with a unified syntax.
        - [BI] luatexbase.use_module removed (use luatexbase.require_module with
          a single argument instead).
        - [BI] luatexbase.module_term removed.
        - [BI] removed support for version check using a floating point
          number, only date is supported now.
        - module_{error,warning,info,log} now apply string.format
          automatically
        - date, version and description are now optional.
        - improved formatting of messages.
        - luatexbase.require_module now returns curstom err/war/inf functions.
    mcb
        - [BI] rationalise "list"-type callbacks handling. The new calling
          convention differs from the old one only in edge cases.
        - add user documentation
        - misc code tuning (more locals, etc)

2010/10/04
    - various documentation updates/fixes uploaded to CTAN
    - luatexbase.sty used to be broken on CTAN (bad docstrip)

2010/05/27 v0.2a
    attr
        - allocate from 1 to avoid problems with some external code
        - provide a Lua interface: new_attribute() and unset_attribute().
    modutils
        - fix bug with module require_module()-ed many times.
    luatexbase
        - new, loads: compat,loader,regs,attr,cctb.

[BI] Summary of backwards-incompatible interface changes between 0.1 and 0.2:
    - Lua objects are now in table luatexbase, not luatextra.
    - Lua tables tex.attributenumber and tex.catcodetablenumber are not
      created any more, use their couterparts in luatexbase.
    - \luatexsetcatcoderange has been renamed to \setcatcoderange.
    - luamcallbacks has been renamed; Lua objects are now in luatexbase,
      no more in callback.* or luamcallbacks.*
    - module error/warning etc now apply string.format to the arguments.

2010/05/12 v0.2
    all
        - use luatexbase as the Lua module name
        - change the filename of the lua module (suppress luatexbase.)
        - load luatexbase-compat
    luatexbase-compat
        - new
    luatexbase-attr
        - don't create tex.attributenumber
        - load luatexbase-compat
    luatexbase-cctb
        - don't create tex.catcodetablenumber
        - rename \luatexsetcatcoderange to \setcatcoderange
        - load lua-compat
    luamcallbacks -> luatexbase-mcb
        - rename package, new version numbering starting at 0.2
        - functions are now in luatexbase rather than luamcallbacks, they
          are no more copied to callbacks either
        - lua objects are now local (except for the public interface)
        - test file now for plain and latex
    luatexbase-loader
        - require"foo.bar" now looks for foo/bar then foo.bar, see doc for
          details
        - better cooperation with the original package loader
        - works with luatex 0.25.4
    luatexbase-modutils
        - module error/warning etc now apply string.format to the arguments.
        - use error() instead of \errmessage.

2010/03/28
    luatexbase-*
        - add catcode defenses

2010/03/27
    luatexbase-loader 0.1
        - add very minimal test files for luatex and lualatex
    luatexbase-modutils 0.1
        - add minimal test files for luatex and lualatex
        - use require() (with luatexbase-loader) for loading
    luatexbase-attr, luatexbase-cctb, luamcallbacks (test file)
        - use luatexbase-loader

2010/03/26
    luatexbase-cctb 0.1
        - add minimal test files for luatex and lualatex
        - fix allocation range (1->65535)
        - make sure newly allocated tables are initialised
        - fix sensitivity to the current value of \escapechar
        - new macro \setluatexcatcodetable

2010/03/11
    luatexbase-attrs 0.1
        - add minimal test files for luatex and lualatex
        - make sure newly allocated attributes are unset
        - fix sensitivity to the current value of \escapechar

2010/01/21
    luatexbase-regs 0.1
        - add test files for luatex and lualatex
        - extend registers with Plain-based format too
        - fix \box and \marks allocation (\mathchardef -> \chardef)
        - fix \*blk macros (\mathchardef -> \chardef)

Version 0 of the bundle is part of the 2010/01/12 version of luatextra.