2020-04-08 [Jacques]
- update for Coq 8.11
2019-11-18 [Xuanrui]
- remove some warnings
2019-11-15 [Jacques]
- update for Coq 8.10
2013-01-17 [Jacques]
- update for Coq 8.4
2012-06-18 [Jacques]
- update for Coq 8.3
2010-10-25 [Jacques]
- release for APLAS paper