fluidsynth 2.6.2

• Fix inconsistent note-onset-ramps when fluidsynth reuses a voice (#1863, thanks to @Yikai-Liao)
• Preserve MIDI parser state except on System Reset (#1868, thanks to @Yikai-Liao)
• Performance optimization for the IIR-filter (#1867, thanks to @Yikai-Liao)
• Fix infinite loop in DSP when sample-loop-wrap leaves phase negative (#1871)
• Fix the 4 ms predelay in Dattorro reverb (#1872, thanks to @Yikai-Liao)
• Honor sustain when releasing sostenuto (#1880, thanks to @Yikai-Liao)
• The MIDI player now rejects zero tempo in MIDI files (#1881 thanks to @Yikai-Liao)
• Fix loud and distorted sound for some SF3 files (#1856, thanks to @Yikai-Liao)
• Fix NoteOff events possibly reviving stale notes after receiving AllNotesOff and AllSoundsOff (#1879, thanks to @Yikai-Liao)
• When switching between MIDI modes, fluidsynth now force-releases playing notes, as per MIDI spec (#1859)
• Fluidsynth now enforces the data value of CC126 events only when being in OMNI OFF mode, and remembers it when in OMNI ON mode (#1859)
• Fix libfluidsynth's install name on MacOS to make it relocatable (@rpath) rather than tied to an absolute build/install path (#1891, thanks to @pedrolcl)
• Fix memory leaks in the SDL3 audio driver (#1893, thanks to @rsp4jack)
• Fix a race-condition during multi-threaded rendering (#1895, thanks to @Yikai-Liao)