Release Notes: Optimizations and reliability fixes were made.
Release Notes: The "compact" response format was implemented. If no bugs are found, this will be the last release before 1.0.
Release Notes: This release finalizes core features, and begins preparing for the first stable release.
Release Notes: Huge performance improvements were made by bypassing memcache's pickling. This should allow many more requests per CPU quota. Many other improvements were made.
Release Notes: This release adds many performance and correctness improvements. It's starting to be usable as a production tracker.
Release Notes: Initial release. Basic tracker functionality has been implemented with high efficiency.