Released v8.1.2 * Fix a regression on systems with uninitialized locale (:issue:`3575`). * Use environment markers to filter packages before determining if a required wheel is supported. Solves (:issue:`3254`). * Make glibc parsing for `manylinux1` support more robust for the variety of glibc versions found in the wild (:issue:`3588`). * Update environment marker support to fully support PEP 508 and legacy environment markers (:issue:`3624`). * Always use debug logging to the ``--log`` file (:issue:`3351`). * Don't attempt to wrap search results for extremely narrow terminal windows (:issue:`3655`).