diff --git a/CHANGES b/CHANGES
index cb19ff64..6ddd7d47 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,8 +1,6 @@
 MDBX
 	Add MDB_PREV_MULTIPLE
-	Fix MDB_CP_COMPACT (ITS#8209)
 	Add error MDB_PROBLEM, replace some MDB_CORRUPTED
-	Backport fixes for ITS#8406
 
 LMDB 0.9.19 Release Engineering
 	Fix mdb_env_cwalk cursor init (ITS#8424)
@@ -11,6 +9,16 @@ LMDB 0.9.19 Release Engineering
 	Optimize mdb_drop
 	Fix xcursors after mdb_cursor_del (ITS#8406)
 	Fix MDB_NEXT_DUP after mdb_cursor_del (ITS#8412)
+	Fix mdb_cursor_put resetting C_EOF (ITS#8489)
+	Fix mdb_env_copyfd2 to return EPIPE on SIGPIPE (ITS#8504)
+	Fix mdb_env_copy with empty DB (ITS#8209)
+	Fix behaviors with fork (ITS#8505)
+	Fix mdb_dbi_open with mainDB cursors (ITS#8542)
+	Fix F_NOCACHE on MacOS, error is non-fatal (ITS#7682)
+	Documentation
+		Cleanup doxygen nits
+		Note reserved vs actual mem/disk usage
+
 
 LMDB 0.9.18 Release (2016/02/05)
 	already done for mdbx - Fix robust mutex detection on glibc 2.10-11 (ITS#8330)
diff --git a/Doxyfile b/Doxyfile
index 5047c0bb..5ca2cfe8 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -253,7 +253,7 @@ IDL_PROPERTY_SUPPORT   = YES
 # member in the group (if any) for the other members of the group. By default
 # all members of a group must be documented explicitly.
 
-DISTRIBUTE_GROUP_DOC   = NO
+DISTRIBUTE_GROUP_DOC   = YES
 
 # Set the SUBGROUPING tag to YES (the default) to allow class member groups of
 # the same type (for instance a group of public functions) to be put as a
diff --git a/mdb.c b/mdb.c
index 4c2cd1ed..27df5516 100644
--- a/mdb.c
+++ b/mdb.c
@@ -614,19 +614,26 @@ typedef struct MDB_page {
 	/** Header for a single key/data pair within a page.
 	 * Used in pages of type #P_BRANCH and #P_LEAF without #P_LEAF2.
 	 * We guarantee 2-byte alignment for 'MDB_node's.
+	 *
+	 * #mn_lo and #mn_hi are used for data size on leaf nodes, and for child
+	 * pgno on branch nodes.  On 64 bit platforms, #mn_flags is also used
+	 * for pgno.  (Branch nodes have no flags).  Lo and hi are in host byte
+	 * order in case some accesses can be optimized to 32-bit word access.
+	 *
+	 * Leaf node flags describe node contents.  #F_BIGDATA says the node's
+	 * data part is the page number of an overflow page with actual data.
+	 * #F_DUPDATA and #F_SUBDATA can be combined giving duplicate data in
+	 * a sub-page/sub-database, and named databases (just #F_SUBDATA).
 	 */
 typedef struct MDB_node {
-	/** lo and hi are used for data size on leaf nodes and for
-	 * child pgno on branch nodes. On 64 bit platforms, flags
-	 * is also used for pgno. (Branch nodes have no flags).
-	 * They are in host byte order in case that lets some
-	 * accesses be optimized into a 32-bit word access.
-	 */
+	/** part of data size or pgno
+	 *	@{ */
 #if BYTE_ORDER == LITTLE_ENDIAN
-	unsigned short	mn_lo, mn_hi;	/**< part of data size or pgno */
+	unsigned short	mn_lo, mn_hi;
 #else
 	unsigned short	mn_hi, mn_lo;
 #endif
+	/** @} */
 /** @defgroup mdb_node Node Flags
  *	@ingroup internal
  *	Flags for node headers.