1.10.0

Features:

• --generate-hashes now generates hashes for all wheels,
  not only wheels for the currently running platform (#520). Thanks @jdufresne
• Added a -q/--quiet argument to the pip-sync command to reduce log output.

Bug Fixes:

• Fixed bug where unsafe packages would get pinned in generated requirements files
  when --allow-unsafe was not set. (#517). Thanks @dschaller
• Fixed bug where editable PyPI dependencies would have a download_dir and be exposed to git-checkout-index,
  (thus losing their VCS directory) and python setup.py egg_info fails. (#385 and #538). Thanks @blueyed and @dfee
• Fixed bug where some primary dependencies were annotated with "via" info comments. (#542). Thanks @quantus
• Fixed bug where pkg-resources would be removed by pip-sync in Ubuntu. (#555). Thanks @cemsbr
• Fixed bug where the resolver would sometime not stabilize on requirements specifying extras. (#566). Thanks @vphilippon
• Fixed an unicode encoding error when distribution package contains non-ASCII file names (#567). Thanks @suutari
• Fixed package hashing doing unnecessary unpacking

1.9.0

Features:

• Added ability to read requirements from setup.py instead of just requirements.in (#418). Thanks to @tysonclugg and @majuscule.
• Added a --max-rounds argument to the pip-compile command to allow for solving large requirement sets (#472). Thanks @derek-miller.
• Exclude unsafe packages' dependencies when --allow-unsafe is not in use (#441). Thanks @jdufresne.
• Exclude irrelevant pip constraints (#471). Thanks @derek-miller.
• Allow control over emitting trusted-host to the compiled requirements. (#448). Thanks @tonyseek.
• Allow running as a Python module (#461). Thanks @AndreLouisCaron.
• Preserve environment markers in generated requirements.txt. (#460). Thanks @barrywhart.

Bug Fixes:

• Fixed the --upgrade-package option to respect the given package list to update (#491).
• Fixed the default output file name when the source file has no extension (#488). Thanks @vphilippon
• Fixed crash on editable requirements introduced in 1.8.2.
• Fixed duplicated --trusted-host, --extra-index-url and --index-url in the generated requirements.

1.8.2

This is 1.8.2