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changelog: updates for 5.4.0 release

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Wang Xiang W 2020-12-21 10:09:43 +00:00 committed by Konstantinos Margaritis
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CHANGELOG.md
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This is a list of notable changes to Hyperscan, in reverse chronological order.
## [5.4.0] 2020-12-31
- Improvement on literal matcher "Fat Teddy" performance, including
support for Intel(R) AVX-512 Vector Byte Manipulation Instructions (Intel(R)
AVX-512 VBMI).
- Introduce a new 32-state shuffle-based DFA engine ("Sheng32"). This improves
scanning performance by leveraging AVX-512 VBMI.
- Introduce a new 64-state shuffle-based DFA engine ("Sheng64"). This improves
scanning performance by leveraging AVX-512 VBMI.
- Introduce a new shuffle-based hybrid DFA engine ("McSheng64"). This improves
scanning performance by leveraging AVX-512 VBMI.
- Improvement on exceptional state handling performance for LimEx NFA, including
support for AVX-512 VBMI.
- Improvement on lookaround performance with new models, including support for
AVX-512.
- Improvement on DFA state space efficiency.
- Optimization on decision of NFA/DFA generation.
- hsbench: add CSV dump support for hsbench.
- Bugfix for cmake error on Icelake under release mode.
- Bugfix in find_vertices_in_cycles() to avoid self-loop checking in SCC.
- Bugfix for issue #270: fix return value handling in chimera.
- Bugfix for issue #284: use correct free function in logical combination.
- Add BUILD_EXAMPLES cmake option to enable example code compilation. (#260)
- Some typo fixing. (#242, #259)
## [5.3.0] 2020-05-15
- Improvement on literal matcher "Teddy" performance, including support for
Intel(R) AVX-512 Vector Byte Manipulation Instructions (Intel(R) AVX-512