Log Message:
Version 2.4
===========

Encoder enhancements
--------------------
1. HDR10+ supported. Dynamic metadata may be either supplied as a bitstream via \ 
the userSEI field of x265_picture, or as a json jile that can be parsed by x265 \ 
and inserted into the bitstream; use :option:`--dhdr10-info` to specify json \ 
file name, and :option:`--dhdr10-opt` to enable optimization of inserting \ 
tone-map information only at IDR frames, or when the tone map information \ 
changes.
2. Lambda tables for 8, 10, and 12-bit encoding revised, resulting in \ 
significant enhancement to subjective  visual quality.
3. Enhanced HDR10 encoding with HDR-specific QP optimzations for chroma, and \ 
luma planes of WCG content enabled; use :option:`--hdr-opt` to activate.
4. Ability to accept analysis information from other previous encodes (that may \ 
or may not be x265), and selectively reuse and refine analysis for encoding \ 
subsequent passes enabled with the :option:`--refine-level` option.
5. Slow and veryslow presets receive a 20% speed boost at iso-quality by \ 
enabling the :option:`--limit-tu` option.
6. The bitrate target for x265 can now be dynamically reconfigured via the \ 
reconfigure API.
7. Performance optimized SAO algorithm introduced via the :option:`--limit-sao` \ 
option; seeing 10% speed benefits at faster presets.

API changes
-----------
1. x265_reconfigure API now also accepts rate-control parameters for dynamic \ 
reconfiguration.
2. Several additions to data fields in x265_analysis to support \ 
:option:`--refine-level`: see x265.h for more details.

Bug fixes
---------
1. Avoid negative offsets in x265 lambda2 table with SAO enabled.
2. Fix mingw32 build error.
3. Seek now enabled for pipe input, in addition to file-based input
4. Fix issue of statically linking core-utils not working in linux.
5. Fix visual artifacts with :option:`--multi-pass-opt-distortion` with VBV.
6. Fix bufferFill stats reported in csv.