From the LOCKSS Web site:

The LOCKSS Program is pleased to announce that LOCKSS 1.77 is released and that LOCKSS 2.0-alpha7 is now available for testing.

LOCKSS 2.0.71-alpha7 is the first release in the LOCKSS 2.0-alpha7 series, the seventh step on the road to LOCKSS 2.0. Its major features are the LOCKSS Crawler Service (a new component managing crawlers, including the classic LOCKSS crawler and a new Wget-based crawler), significant performance improvements (including substantial reductions in memory requirements), and numerous bug fixes and adjustments throughout the system. Many of these performance improvements and bug fixes are also featured in LOCKSS 1.77.3, the first release in the LOCKSS 1.77 series.

See https://www.lockss.org/news/lockss-177-released-and-lockss-20-alpha7-available-testing for all the details.