# API documentation for libmpg123 and libout123

Note: This API doc is automatically generated from the current development version that you can get via Subversion or as a daily snapshot from http://mpg123.org/snapshot. There may be differences (additions) compared to the latest stable release. See NEWS.libmpg123, NEWS.libout123, and the overall NEWS file on libmpg123 versions and important changes between them.
Let me emphasize that the policy for libmpg123 and libout123 is to always stay backwards compatible -- only additions are planned (and it's not yet planned to change the plans;-).