source/libs/luajit/LuaJIT-src/doc/status.html

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  20 <h1>Status</h1>
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  66 <p>
  67 <span style="color: #0000c0;">LuaJIT&nbsp;2.0</span> is the current
  68 <span style="color: #0000c0;">stable branch</span>. This branch is in
  69 feature-freeze &mdash; new features will only be added to LuaJIT&nbsp;2.1.
  70 </p>
  71
  72 <h2>Current Status</h2>
  73 <p>
  74 LuaJIT ought to run all Lua&nbsp;5.1-compatible source code just fine.
  75 It's considered a serious bug if the VM crashes or produces unexpected
  76 results &mdash; please report this.
  77 </p>
  78 <p>
  79 Known incompatibilities and issues in LuaJIT&nbsp;2.0:
  80 </p>
  81 <ul>
  82 <li>
  83 There are some differences in <b>implementation-defined</b> behavior.
  84 These either have a good reason, are arbitrary design choices
  85 or are due to quirks in the VM. The latter cases may get fixed if a
  86 demonstrable need is shown.
  87 </li>
  88 <li>
  89 The Lua <b>debug API</b> is missing a couple of features (return
  90 hooks for non-Lua functions) and shows slightly different behavior
  91 in LuaJIT (no per-coroutine hooks, no tail call counting).
  92 </li>
  93 <li>
  94 Some checks are missing in the JIT-compiled code for obscure situations
  95 with <b>open upvalues aliasing</b> one of the SSA slots later on (or
  96 vice versa). Bonus points, if you can find a real world test case for
  97 this.
  98 </li>
  99 <li>
 100 Currently some <b>out-of-memory</b> errors from <b>on-trace code</b> are not
 101 handled correctly. The error may fall through an on-trace
 102 <tt>pcall</tt> or it may be passed on to the function set with
 103 <tt>lua_atpanic</tt> on x64. This issue will be fixed with the new
 104 garbage collector.
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