Version v0.15.12 of SILE has been released and is available for download! See the included CHANGELOG.md or review the commit history for more explicit details.
Summary of Improvements
The last release went out with really obnoxious inverted logic for a deprecation message that spammed the terminal warning users when their usage of various modules was correct and up to date and not when they were using a deprecated interface. This just puts the noise to rest.