+threadskv4b.c Multi-Threaded/Multi-Process based on threadskv3 that manages duplicate keys added to the btree.
+
+threadskv5.c Multi-Threaded/Multi-Process based on threadskv4b that supports bi-directional cursors through the btree. Also supports raw disk partitions for btrees.
+
+threadskv6.c Multi-Threaded/Single-Process with traditional buffer pool manager using the swap device. Based on threadskv5 and btree2u.
+
+threadskv7.c Multi-Threaded/Single-Process with atomic add of a set of keys under eventual consistency. Adds an individual key lock manager.
+
+threadskv8.c Multi-Threaded/Single-Process with atomic-consistent add of a set of keys based on threadskv6.c. Uses btree page latches as locking granularity.
+
+threadskv10g.c Multi-Threaded/Single-Process with 2 Log-Structured-Merge (LSM) btrees based on threadskv8.c. Also adds dual leaf/interior node page sizes.
+