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+LMDB 0.9 Change Log
+
+LMDB 0.9.29 Release (2021/03/16)
+ ITS#9461 refix ITS#9376
+ ITS#9500 fix regression from ITS#8662
+
+LMDB 0.9.28 Release (2021/02/04)
+ ITS#8662 add -a append option to mdb_load
+
+LMDB 0.9.27 Release (2020/10/26)
+ ITS#9376 fix repeated DUPSORT cursor deletes
+
+LMDB 0.9.26 Release (2020/08/11)
+ ITS#9278 fix robust mutex cleanup for FreeBSD
+
+LMDB 0.9.25 Release (2020/01/30)
+ ITS#9068 fix mdb_dump/load backslashes in printable content
+ ITS#9118 add MAP_NOSYNC for FreeBSD
+ ITS#9155 free mt_spill_pgs in non-nested txn on end
+
+LMDB 0.9.24 Release (2019/07/24)
+ ITS#8969 Tweak mdb_page_split
+ ITS#8975 WIN32 fix writemap set_mapsize crash
+ ITS#9007 Fix loose pages in WRITEMAP
+
+LMDB 0.9.23 Release (2018/12/19)
+ ITS#8756 Fix loose pages in dirty list
+ ITS#8831 Fix mdb_load flag init
+ ITS#8844 Fix mdb_env_close in forked process
+ Documentation
+ ITS#8857 mdb_cursor_del doesn't invalidate cursor
+ ITS#8908 GET_MULTIPLE etc don't change passed in key
+
+LMDB 0.9.22 Release (2018/03/22)
+ Fix MDB_DUPSORT alignment bug (ITS#8819)
+ Fix regression with new db from 0.9.19 (ITS#8760)
+ Fix liblmdb to build on Solaris (ITS#8612)
+ Fix delete behavior with DUPSORT DB (ITS#8622)
+ Fix mdb_cursor_get/mdb_cursor_del behavior (ITS#8722)
+
+LMDB 0.9.21 Release (2017/06/01)
+ Fix xcursor after cursor_del (ITS#8622)
+
+LMDB 0.9.20 (Withdrawn)
+ Fix mdb_load with escaped plaintext (ITS#8558)
+ Fix mdb_cursor_last / mdb_put interaction (ITS#8557)
+
+LMDB 0.9.19 Release (2016/12/28)
+ 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)
+ 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 robust mutexes on kFreeBSD (ITS#8554)
+ 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
+
+
+LMDB 0.9.18 Release (2016/02/05)
+ Fix robust mutex detection on glibc 2.10-11 (ITS#8330)
+ Fix page_search_root assert on FreeDB (ITS#8336)
+ Fix MDB_APPENDDUP vs. rewrite(single item) (ITS#8334)
+ Fix mdb_copy of large files on Windows
+ Fix subcursor move after delete (ITS#8355)
+ Fix mdb_midl_shirnk off-by-one (ITS#8363)
+ Check for utf8_to_utf16 failures (ITS#7992)
+ Catch strdup failure in mdb_dbi_open
+ Build
+ Additional makefile var tweaks (ITS#8169)
+ Documentation
+ Add Getting Started page
+ Update WRITEMAP description
+
+
+LMDB 0.9.17 Release (2015/11/30)
+ Fix ITS#7377 catch calloc failure
+ Fix ITS#8237 regression from ITS#7589
+ Fix ITS#8238 page_split for DUPFIXED pages
+ Fix ITS#8221 MDB_PAGE_FULL on delete/rebalance
+ Fix ITS#8258 rebalance/split assert
+ Fix ITS#8263 cursor_put cursor tracking
+ Fix ITS#8264 cursor_del cursor tracking
+ Fix ITS#8310 cursor_del cursor tracking
+ Fix ITS#8299 mdb_del cursor tracking
+ Fix ITS#8300 mdb_del cursor tracking
+ Fix ITS#8304 mdb_del cursor tracking
+ Fix ITS#7771 fakepage cursor tracking
+ 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
+ Fix ITS#8311 page_split from update_key
+ Fix ITS#8312 loose pages in nested txn
+ Fix ITS#8313 mdb_rebalance dummy cursor
+ Fix ITS#8315 dirty_room in nested txn
+ Fix ITS#8323 dirty_list in nested txn
+ Fix ITS#8316 page_merge cursor tracking
+ Fix ITS#8321 cursor tracking
+ Fix ITS#8319 mdb_load error messages
+ Fix ITS#8320 mdb_load plaintext input
+ Added mdb_txn_id() (ITS#7994)
+ Added robust mutex support
+ Miscellaneous cleanup/simplification
+ Build
+ Create install dirs if needed (ITS#8256)
+ Fix ThreadProc decl on Win32/MSVC (ITS#8270)
+ Added ssize_t typedef for MSVC (ITS#8067)
+ Use ANSI apis on Windows (ITS#8069)
+ Use O_SYNC if O_DSYNC,MDB_DSYNC are not defined (ITS#7209)
+ Allow passing AR to make (ITS#8168)
+ Allow passing mandir to make install (ITS#8169)
+
+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)
+
+LMDB 0.9.15 Release (2015/06/19)
+ Fix txn init (ITS#7961,#7987)
+ Fix MDB_PREV_DUP (ITS#7955,#7671)
+ Fix compact of empty env (ITS#7956)
+ Fix mdb_copy file mode
+ Fix mdb_env_close() after failed mdb_env_open()
+ Fix mdb_rebalance collapsing root (ITS#8062)
+ Fix mdb_load with large values (ITS#8066)
+ Fix to retry writes on EINTR (ITS#8106)
+ Fix mdb_cursor_del on empty DB (ITS#8109)
+ Fix MDB_INTEGERDUP key compare (ITS#8117)
+ Fix error handling (ITS#7959,#8157,etc.)
+ Fix race conditions (ITS#7969,7970)
+ Added workaround for fdatasync bug in ext3fs
+ Build
+ Don't use -fPIC for static lib
+ Update .gitignore (ITS#7952,#7953)
+ Cleanup for "make test" (ITS#7841), "make clean", mtest*.c
+ Misc. Android/Windows cleanup
+ Documentation
+ Fix MDB_APPEND doc
+ Fix MDB_MAXKEYSIZE doc (ITS#8156)
+ 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
+ Clarify mdb_dbi_open doc
+
+LMDB 0.9.14 Release (2014/09/20)
+ Fix to support 64K page size (ITS#7713)
+ 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
+ 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
+ Fix to dirty fewer pages in deletes (mdb_page_loose())
+ Fix mdb_dbi_open creating subDBs (ITS#7917)
+ 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
+
+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
+
+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)
+
+
+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)
+
+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
+
+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)
+ 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
+
+
+LMDB 0.9.8 Release (2013/09/09)
+ Allow mdb_env_set_mapsize() on an open environment
+ Fix mdb_dbi_flags() (ITS#7672)
+ Fix mdb_page_unspill() in nested txns
+ Fix mdb_cursor_get(CURRENT|NEXT) after a delete
+ Fix mdb_cursor_get(DUP) to always return key (ITS#7671)
+ Fix mdb_cursor_del() to always advance to next item (ITS#7670)
+ 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)
+ 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