[Doc] libopenmpt: Update changelog.

git-svn-id: https://source.openmpt.org/svn/openmpt/branches/OpenMPT-1.30@20793 56274372-70c3-4bfc-bfc3-4c3a0b034d27

libopenmpt/dox/changelog.md

@@ -14,8 +14,18 @@ is just a high-level summary.
  * [**Regression**] GCC 14 or later is unsupported on libopenmpt 0.6. Please
  use libopenmpt 0.7 or later.
 
- * M15: Loosen SoundTracker file rejection heuristics a bit to allow loading of
- schmokk.mod and scramble_2.mod. Other heuristics has been tightened a bit.
+ * S3M: In mono mode, the ratio between sample and OPL volume was incorrect.
+ * XM: Files with impossibly small pattern headers are now rejected, like
+ FastTracker 2 does.
+ * STK: Loosen SoundTracker file rejection heuristics a bit to allow loading of
+ files with malformed song titles and overly long samples.
+ Other heuristics has been tightened a bit.
+ * MO3: Reduced maximum allowed music data (not samples) size from 2 GiB to
+ 512 MiB.
+ * MDL: Slightly more accurate import of pattern command 9 (enabling envelopes
+ instead of setting envelope position).
+ * OPL emulation could produce clicks when using a mix rate higher than
+ 65536 Hz.
 
  * mpg123: Update to v1.32.6 (2024-04-04).
 
@@ -606,7 +616,7 @@ is just a high-level summary.
  * XM: Do not default recall volume / panning for delayed instrument-less notes
  * XM :E60 loop bug was not considered in song length calucation.
  * S3M: Notes without instrument number use previous note's sample offset.
- * Tighten M15 and MOD file rejection heuristics.
+ * Tighten STK and MOD file rejection heuristics.
  * J2B: Ignore frequency limits from file header. Fixes Medivo.j2b, broken
  since libopenmpt-0.2.6401-beta17.
  * STM: More accurate tempo calculation.
@@ -794,7 +804,7 @@ is just a high-level summary.
  malformed STM files to load which were previously rejected.
  * Detect whether "hidden" patterns in the order list of SoundTracker modules
  should be taken into account or not.
- * Tighten heuristics for rejecting invalid 669, M15, MOD and ICE files and
+ * Tighten heuristics for rejecting invalid 669, STK, MOD and ICE files and
  loosen them in other places to allow some valid MOD files to load.
  * Improvements to seeking: Channel panning was not always updated from
  instruments / samples when seeking, and out-of-range global volume was not