Version 1.5.12.1 - 29 April 2014

• upgraded the Nginx core to 1.5.12.
  • see the changes here: http://nginx.org/en/CHANGES
• upgraded LuaJIT to v2.1-20140423 (see https://github.com/openresty/luajit2/releases ).
  • bugfix: prevent adding side traces for stack checks. (Mike pall) this could cause internal assertion failure in the JIT compiler while replaying snapshots in very obscure cases: lj_snap.c:497: lj_snap_replay: Assertion ir->o == IR_CONV && ir->op2 == ((IRT_NUM<<5)|IRT_INT)' failed.`
  • bugfix: fixed FOLD of string concatenations. (Mike Pall) this issue was reported by leafo and could lead to invalid string results in special cases while compiling string concatenations.
  • bugfix: FFI: fixed cdata equality comparison against strings and other Lua types. (Mike Pall)
  • bugfix: fixed top slot calculation for snapshots with continuations. (Mike Pall) this was a bug in snapshot generation, but it only surfaced with trace stitching. it could cause Lua stack overwrites in special cases.
  • bugfix: PPC: don't use mcrxr on PPE. (Mike Pall)
  • bugfix: prevent GC estimate miscalculation due to buffer growth. (Mike Pall)
  • bugfix: fixed the regression introduced by the previous fix for "reuse of SCEV results in FORL". (Mike Pall) this could cause internal assertion failure in the JIT compiler: lj_record.c:68: rec_check_ir: Assertion op2 >= nk' failed.`
  • bugfix: fixed alias analysis for table.len vs. table.clear. (Mike Pall) this could cause table.len to return incorrect values (nonzero values) after table.clear was performed.
  • bugfix: fixed the compatibility with DragonFlyBSD. thanks lhmwzy for the patch.
  • feature: allow non-scalar cdata to be compared for equality by address. (Mike Pall)
• upgraded Lua Upstream Nginx Module to 0.02.
  • bugfix: upstream names did not support taking a port number. thanks magicleo for the report.
• upgraded Redis2 Nginx Module to 0.11.
  • change: now we always ignore client aborts for collaborations with other modules like Srcache Nginx Module. thanks akamatgi for the report.
• upgraded Lua Nginx Module to 0.9.7.
  • bugfix: when lua_code_cache was off, cosocket:setkeepalive() might lead to segmentation faults. thanks Kelvin Peng for the report.
  • refactor: improved the error handling and logging in the Lua code loader and closure factory.
  • change: added stronger assertions to the stream-typed cosocket implementation.
  • optimize: we no longer call ngx_pfree() in our own pcre_free hook.
  • optimize: we no longer clear the pointer ctx->user_co_ctx in ngx_http_lua_reset_ctx.
• upgraded Echo Nginx Module to 0.53.
  • bugfix: use of empty arguments after the -n option of the echo directive (and its friends) might cause subsequent arguments to get discarded. thanks Lice Pan for the report and fix.
• upgraded Form Input Nginx Module to 0.08.
  • bugfix: segmentation fault might happen when set_form_input_multi was used while no proper Content-Type request header was given.
• upgraded Lua Resty Web Socket Library to 0.03.
  • optimize: added a minor optimization in the recv_frame() method. thanks yurnerola for the catch.
• upgraded Lua Resty Core Library to 0.0.6.
  • optimize: ngx.re.sub/ngx.re.gsub: now we avoid constructing new Lua strings for the regex cache keys, which gives 5% speedup for trivial use cases.
  • optimize: ngx.re.match/ngx.re.find: avoided constructing a new Lua string for the regex cache key by switching over to a cascaded 2-level hash table, which gives 22% speedup for simple use cases.
• upgraded Lua Resty Lock Library to 0.03.
  • bugfix: prevented using cdata directly as table keys.
• upgraded Lua Resty String Library to 0.09.
  • bugfix: avoided using the "module" builtin function to define lua modules. thanks lhmwzy for the original patch. See ChangeLog 1.5.11 for change log for OpenResty 1.5.11.x.