This file is the short summary of the API changes: 27.03.2017 - Non-backward compatible JIT stack is changed from bottom-up to top-town. 15.01.2017 - Non-backward compatible Move with update may modifiy flags, the base register can only be used once and [reg+reg< 0 is not supported anymore. 12.01.2017 - Non-backward compatible Introducing a new flag mechanism which provides better compatibility with CPUs without flags. Only two flags remain: zero and variable. The current type of the variable flag is specified by the arithmetic operator. The SLJIT_KEEP_FLAGS is removed. 29.02.2016 - Non-backward compatible Several types and instructions are renamed to improve readability. In general byte, half, and int are renamed to 8, 16, and 32. Floating point types are also renamed from d and s to f64 and f32. [s|u]b -> [s|u]8 (8 bit values) [s|u]h -> [s|u]16 (16 bit values) [s|u]i -> [s|u]32 (32 bit values) d -> f64 (64 bit floating point value) s -> f32 (32 bit floating point value) 18.05.2015 - Non-backward compatible SLJIT_[I|]L[U|S]DIV is renamed to SLJIT_[I|][U|S]DIVMOD 29.09.2014 - Non-backward compatible The sljit_create_compiler, sljit_allocate_stack, and sljit_free_stack functions have an allocator_data argument now. 19.09.2014 - Non-backward compatible Using I, D, S prefixes in conditional and floating point operations. And an L prefix to long multiplication and division (op0 opcodes). 11.08.2014 - Non-backward compatible A currently unused options parameter is added to sljit_emit_enter and sljit_set_context. 06.07.2014 - Non-backward compatible SCRATCH registers are renamed to Rx and SAVED registers are renamed to Sx. See the explanation of these registers in sljitLir.h. 31.05.2014 - Non-backward compatible SLJIT_TEMPORARY_EREGx registers were not renamed to SLJIT_SCRATCH_EREGx when the change was done on 08.11.2012 05.03.2014 - Backward compatible The sljit_set_target now supports those jumps, which does not created with SLJIT_REWRITABLE_JUMP flag. Reason: sljit_emit_ijump does not support conditional jumps. 03.03.2014 - Non-backward compatible SLJIT_MOV_UI cannot be combined with SLJIT_INT_OP. Reason: SLJIT_INT_OP flag is not recommended to use directly, and SLJIT_IMOV has no sign bit. 29.01.2014 - Backward compatible Bits assigned to SLJIT_MEM and SLJIT_IMM flags are changed. Reason: the most common cases are fits into one byte now, and more registers can be supported in the future. 08.11.2012 - Non-backward compatible SLJIT_TEMPORARY_REGx registers are renamed to SLJIT_SCRATCH_REGx. 07.11.2012 - Non-backward compatible sljit_emit_cond_value is renamed to sljit_emit_op_flags. An extra source argument is added which will be used in the future. 05.11.2012 - Backward compatible sljit_emit_cond_value now supports SLJIT_AND and SLJIT_INT_OP flags, which makes this function complete. 01.11.2012 - Non-backward compatible SLJIT_F* opcodes are renamed to SLJIT_*D to show that they are double precision operators. Furthermore SLJIT_*S single precision opcodes are added. 01.11.2012 - Non-backward compatible Register arguments of operations with SLJIT_INT_OP flag must be computed by another operation with SLJIT_INT_OP flag. The same way as SLJIT_SINGLE_OP flag works with floating point numbers. See the description of SLJIT_INT_OP. 01.11.2012 - Backward compatible All operations whose support the SLJIT_INT_OP flag, have an alternate name now, which includes the SLJIT_INT_OP. These names starting with I. 31.10.2012 - Non-backward compatible Renaming sljit_w to sljit_sw, sljit_i to sljit_si, sljit_h to sljit_sh, and sljit_b to sljit_sb. Reason: their sign bit is part of the type now. 20.10.2012 - Non-backward compatible Renaming SLJIT_C_FLOAT_NAN to SLJIT_C_FLOAT_UNORDERED. Reason: all architectures call these unordered comparions.