This is a brief overview of user-visible changes in adplay.

Changes for version 1.6:
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- Added the following output mechanisms:
  - libao: libao driver

Changes for version 1.5:
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- Made compatible with AdPlug 2.0.

Changes for version 1.4:
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- Added the following output mechanisms:
  - alsa: Advanced Linux Sound Architecture (ALSA) driver

Changes for version 1.3:
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- Disk writer now writes proper files on big endian machines.
- AdPlug Database support.
- Added verbosity level options.
- Added the following output mechanisms:
  - esound: EsounD (ESD) driver
  - qsa: QNX Sound Architecture (QSA) driver
  - sdl: Simple Directmedia Layer (SDL) driver

Changes for version 1.2:
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- Updated man page.
- Many build fixes.
- Modularized output system.
- Added the following output mechanisms:
  - oss: Open Sound System (OSS) driver
  - null: Null (silent) output
  - disk: Disk writer

Changes for version 1.1:
------------------------
- Rewrote using GNU autotools.
- Wrote man page.
- FreeBSD fixes.