BACKWARD INCOMPATIBLE pip no longer supports the --use-mirrors,-M, and --mirrors flags. The mirroring support has been removed. In order to use a mirror specify it as the primary index with -i or--index-url, or as an additional index with --extra-index-url. (Pull #1098, CVE-2013-5123)
BACKWARD INCOMPATIBLE pip no longer will scrape insecure external urls by default nor will it install externally hosted files by default. Users may opt into installing externally hosted or insecure files or urls using--allow-external PROJECT and --allow-unverified PROJECT. (Pull #1055)
BACKWARD INCOMPATIBLE pip no longer respects dependency links by default. Users may opt into respecting them again using --process-dependency-links.
DEPRECATION pip install --no-install and pip install--no-download are now formally deprecated. See Issue #906 for discussion on possible alternatives, or lack thereof, in future releases.
DEPRECATION pip zip and pip unzip are now formally deprecated.
pip will now install Mac OSX platform wheels from PyPI. (Pull #1278)
pip now generates the appropriate platform-specific console scripts when installing wheels. (Pull #1251)
Pip now confirms a wheel is supported when installing directly from a path or url. (Pull #1315)
Fixed #1097, --ignore-installed now behaves again as designed, after it was unintentionally broke in v0.8.3 when fixing Issue #14 (Pull #1352).
Fixed a bug where global scripts were being removed when uninstalling –user installed packages (Pull #1353).
Fixed #1163, –user wasn’t being respected when installing scripts from wheels (Pull #1176).
Fixed #1150, we now assume ‘_’ means ‘-‘ in versions from wheel filenames (Pull #1158).
Fixed #219, error when using –log with a failed install (Pull #1205).
Fixed #1131, logging was buffered and choppy in Python 3.
Fixed #70, –timeout was being ignored (Pull #1202).
Fixed #772, error when setting PIP_EXISTS_ACTION (Pull #1201).
Added colors to the logging output in order to draw attention to important warnings and errors. (Pull #1109)
Added warnings when using an insecure index, find-link, or dependency link. (Pull #1121)
Added support for installing packages from a subdirectory using thesubdirectoryeditable option. ( Pull #1082 )
Fixed #1192. “TypeError: bad operand type for unary” in some cases when installing wheels using –find-links (Pull #1218).
Fixed #1133 and #317. Archive contents are now written based on system defaults and umask (i.e. permissions are not preserved), except that regular files with any execute permissions have the equivalent of “chmod +x” applied after being written (Pull #1146).
PreviousBuildDirError now returns a non-zero exit code and prevents the previous build dir from being cleaned in all cases (Pull #1162).
Renamed –allow-insecure to –allow-unverified, however the old name will continue to work for a period of time (Pull #1257).
Fixed #1006, error when installing local projects with symlinks in Python 3. (Pull #1311)
The previously hidden --log-file otion, is now shown as a general option. (Pull #1316)
