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    LMDB 0.9 Change Log
    
    
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    LMDB 0.9.19 Release Engineering
    
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    	Fix mdb_env_cwalk cursor init (ITS#8424)
    	Fix robust mutexes on Solaris 10/11 (ITS#8339)
    	Tweak Win32 error message buffer
    	Fix MDB_GET_BOTH on non-dup record (ITS#8393)
    	Optimize mdb_drop
    	Fix xcursors after mdb_cursor_del (ITS#8406)
    	Fix MDB_NEXT_DUP after mdb_cursor_del (ITS#8412)
    
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    	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)
    
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    	Fix robust mutexes on kFreeBSD (ITS#8554)
    
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    	Fix utf8_to_utf16 error checks (ITS#7992)
    	Fix F_NOCACHE on MacOS, error is non-fatal (ITS#7682)
    	Build
    		Make shared lib suffix overridable (ITS#8481)
    	Documentation
    		Cleanup doxygen nits
    		Note reserved vs actual mem/disk usage
    
    
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    LMDB 0.9.18 Release (2016/02/05)
    
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    	Fix robust mutex detection on glibc 2.10-11 (ITS#8330)
    
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    	Fix page_search_root assert on FreeDB (ITS#8336)
    
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    	Fix MDB_APPENDDUP vs. rewrite(single item) (ITS#8334)
    	Fix mdb_copy of large files on Windows
    
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    	Fix subcursor move after delete (ITS#8355)
    
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    	Fix mdb_midl_shirnk off-by-one (ITS#8363)
    
    	Check for utf8_to_utf16 failures (ITS#7992)
    	Catch strdup failure in mdb_dbi_open
    
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    	Build
    		Additional makefile var tweaks (ITS#8169)
    
    	Documentation
    		Add Getting Started page
    
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    		Update WRITEMAP description
    
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    LMDB 0.9.17 Release (2015/11/30)
    
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    	Fix ITS#7377 catch calloc failure
    	Fix ITS#8237 regression from ITS#7589
    
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    	Fix ITS#8238 page_split for DUPFIXED pages
    
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    	Fix ITS#8221 MDB_PAGE_FULL on delete/rebalance
    
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    	Fix ITS#8258 rebalance/split assert
    
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    	Fix ITS#8263 cursor_put cursor tracking
    
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    	Fix ITS#8264 cursor_del cursor tracking
    
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    	Fix ITS#8310 cursor_del cursor tracking
    
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    	Fix ITS#8299 mdb_del cursor tracking
    
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    	Fix ITS#8300 mdb_del cursor tracking
    
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    	Fix ITS#8304 mdb_del cursor tracking
    
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    	Fix ITS#7771 fakepage cursor tracking
    
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    	Fix ITS#7789 ensure mapsize >= pages in use
    	Fix ITS#7971 mdb_txn_renew0() new reader slots
    	Fix ITS#7969 use __sync_synchronize on non-x86
    
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    	Fix ITS#8311 page_split from update_key
    
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    	Fix ITS#8312 loose pages in nested txn
    	Fix ITS#8313 mdb_rebalance dummy cursor
    	Fix ITS#8315 dirty_room in nested txn
    
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    	Fix ITS#8323 dirty_list in nested txn
    
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    	Fix ITS#8316 page_merge cursor tracking
    	Fix ITS#8321 cursor tracking
    
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    	Fix ITS#8319 mdb_load error messages
    	Fix ITS#8320 mdb_load plaintext input
    
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    	Added mdb_txn_id() (ITS#7994)
    	Added robust mutex support
    	Miscellaneous cleanup/simplification
    
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    	Build
    		Create install dirs if needed (ITS#8256)
    
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    		Fix ThreadProc decl on Win32/MSVC (ITS#8270)
    
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    		Added ssize_t typedef for MSVC (ITS#8067)
    		Use ANSI apis on Windows (ITS#8069)
    
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    		Use O_SYNC if O_DSYNC,MDB_DSYNC are not defined (ITS#7209)
    
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    		Allow passing AR to make (ITS#8168)
    		Allow passing mandir to make install (ITS#8169)
    
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    LMDB 0.9.16 Release (2015/08/14)
    
    	Fix cursor EOF bug (ITS#8190)
    	Fix handling of subDB records (ITS#8181)
    	Fix mdb_midl_shrink() usage (ITS#8200)
    
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    LMDB 0.9.15 Release (2015/06/19)
    
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    	Fix txn init (ITS#7961,#7987)
    	Fix MDB_PREV_DUP (ITS#7955,#7671)
    	Fix compact of empty env (ITS#7956)
    
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    	Fix mdb_copy file mode
    	Fix mdb_env_close() after failed mdb_env_open()
    
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    	Fix mdb_rebalance collapsing root (ITS#8062)
    
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    	Fix mdb_load with large values (ITS#8066)
    
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    	Fix to retry writes on EINTR (ITS#8106)
    
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    	Fix mdb_cursor_del on empty DB (ITS#8109)
    
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    	Fix MDB_INTEGERDUP key compare (ITS#8117)
    
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    	Fix error handling (ITS#7959,#8157,etc.)
    	Fix race conditions (ITS#7969,7970)
    
    	Added workaround for fdatasync bug in ext3fs
    
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    	Build
    		Don't use -fPIC for static lib
    		Update .gitignore (ITS#7952,#7953)
    
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    		Cleanup for "make test" (ITS#7841), "make clean", mtest*.c
    
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    		Misc. Android/Windows cleanup
    	Documentation
    		Fix MDB_APPEND doc
    
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    		Fix MDB_MAXKEYSIZE doc (ITS#8156)
    
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    		Fix mdb_cursor_put,mdb_cursor_del EACCES description
    		Fix mdb_env_sync(MDB_RDONLY env) doc (ITS#8021)
    		Clarify MDB_WRITEMAP doc (ITS#8021)
    
    		Clarify mdb_env_open doc
    
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    		Clarify mdb_dbi_open doc
    
    
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    LMDB 0.9.14 Release (2014/09/20)
    
    	Fix to support 64K page size (ITS#7713)
    
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    	Fix to persist decreased as well as increased mapsizes (ITS#7789)
    
    	Fix cursor bug when deleting last node of a DUPSORT key
    	Fix mdb_env_info to return FIXEDMAP address
    
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    	Fix ambiguous error code from writing to closed DBI (ITS#7825)
    
    	Fix mdb_copy copying past end of file (ITS#7886)
    	Fix cursor bugs from page_merge/rebalance
    
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    	Fix to dirty fewer pages in deletes (mdb_page_loose())
    
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    	Fix mdb_dbi_open creating subDBs (ITS#7917)
    
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    	Fix mdb_cursor_get(_DUP) with single value (ITS#7913)
    
    	Fix Windows compat issues in mtests (ITS#7879)
    	Add compacting variant of mdb_copy
    	Add BigEndian integer key compare code
    	Add mdb_dump/mdb_load utilities
    
    
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    LMDB 0.9.13 Release (2014/06/18)
    	Fix mdb_page_alloc unlimited overflow page search
    	Documentation
    		Re-fix MDB_CURRENT doc (ITS#7793)
    		Fix MDB_GET_MULTIPLE/MDB_NEXT_MULTIPLE doc
    
    
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    LMDB 0.9.12 Release (2014/06/13)
    	Fix MDB_GET_BOTH regression (ITS#7875,#7681)
    	Fix MDB_MULTIPLE writing multiple keys (ITS#7834)
    	Fix mdb_rebalance (ITS#7829)
    	Fix mdb_page_split (ITS#7815)
    	Fix md_entries count (ITS#7861,#7828,#7793)
    	Fix MDB_CURRENT (ITS#7793)
    	Fix possible crash on Windows DLL detach
    	Misc code cleanup
    	Documentation
    		mdb_cursor_put: cursor moves on error (ITS#7771)
    
    
    
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    LMDB 0.9.11 Release (2014/01/15)
    	Add mdb_env_set_assert() (ITS#7775)
    	Fix: invalidate txn on page allocation errors (ITS#7377)
    	Fix xcursor tracking in mdb_cursor_del0() (ITS#7771)
    	Fix corruption from deletes (ITS#7756)
    	Fix Windows/MSVC build issues
    	Raise safe limit of max MDB_MAXKEYSIZE
    	Misc code cleanup
    	Documentation
    		Remove spurious note about non-overlapping flags (ITS#7665)
    
    
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    LMDB 0.9.10 Release (2013/11/12)
    	Add MDB_NOMEMINIT option
    	Fix mdb_page_split() again (ITS#7589)
    	Fix MDB_NORDAHEAD definition (ITS#7734)
    	Fix mdb_cursor_del() positioning (ITS#7733)
    	Partial fix for larger page sizes (ITS#7713)
    	Fix Windows64/MSVC build issues
    
    
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    LMDB 0.9.9 Release (2013/10/24)
    	Add mdb_env_get_fd()
    	Add MDB_NORDAHEAD option
    	Add MDB_NOLOCK option
    	Avoid wasting space in mdb_page_split() (ITS#7589)
    	Fix mdb_page_merge() cursor fixup (ITS#7722)
    	Fix mdb_cursor_del() on last delete (ITS#7718)
    	Fix adding WRITEMAP on existing env (ITS#7715)
    
    	Fix nested txns (ITS#7515)
    
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    	Fix mdb_env_copy() O_DIRECT bug (ITS#7682)
    	Fix mdb_cursor_set(SET_RANGE) return code (ITS#7681)
    	Fix mdb_rebalance() cursor fixup (ITS#7701)
    	Misc code cleanup
    	Documentation
    		Note that by default, readers need write access
    
    
    
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    LMDB 0.9.8 Release (2013/09/09)
    
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    	Allow mdb_env_set_mapsize() on an open environment
    	Fix mdb_dbi_flags() (ITS#7672)
    	Fix mdb_page_unspill() in nested txns
    
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    	Fix mdb_cursor_get(CURRENT|NEXT) after a delete
    
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    	Fix mdb_cursor_get(DUP) to always return key (ITS#7671)
    	Fix mdb_cursor_del() to always advance to next item (ITS#7670)
    
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    	Fix mdb_cursor_set(SET_RANGE) for tree with single page (ITS#7681)
    	Fix mdb_env_copy() retry open if O_DIRECT fails (ITS#7682)
    
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    	Tweak mdb_page_spill() to be less aggressive
    	Documentation
    		Update caveats since mdb_reader_check() added in 0.9.7
    
    LMDB 0.9.7 Release (2013/08/17)
    	Don't leave stale lockfile on failed RDONLY open (ITS#7664)
    	Fix mdb_page_split() ref beyond cursor depth
    	Fix read txn data race (ITS#7635)
    	Fix mdb_rebalance (ITS#7536, #7538)
    	Fix mdb_drop() (ITS#7561)
    	Misc DEBUG macro fixes
    	Add MDB_NOTLS envflag
    	Add mdb_env_copyfd()
    	Add mdb_txn_env() (ITS#7660)
    	Add mdb_dbi_flags() (ITS#7661)
    	Add mdb_env_get_maxkeysize()
    	Add mdb_env_reader_list()/mdb_env_reader_check()
    	Add mdb_page_spill/unspill, remove hard txn size limit
    	Use shorter names for semaphores (ITS#7615)
    	Build
    		Fix install target (ITS#7656)
    	Documentation
    		Misc updates for cursors, DB handles, data lifetime
    
    LMDB 0.9.6 Release (2013/02/25)
    	Many fixes/enhancements
    
    LMDB 0.9.5 Release (2012/11/30)
    	Renamed from libmdb to liblmdb
    	Many fixes/enhancements