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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
+
+## [2.1.6] - 2023-08-30
+### Added
+ - flash_speed: Measure read while write latency
+ - Support `mtd:<num>` syntax for several tools
+
+### Fixed
+ - flashcp: check for lseek errors
+ - flashcp: fix buffer overflow
+ - flashcp: verify data in `--partition`
+ - flashcp: abort on `--partition` and `--erase-all`
+ - flashcp: correct casting for percent display
+ - mtdpart: document partition of size 0
+ - mkfs.ubifs: Non-terminated string related failure with option selinux
+ - nandtest: handle nand devices larger than 4G
+ - Fix printf format specifiers for 64 bit integer types
+
+### Changed
+ - flashcp: merge duplicate write code paths
+ - flashcp: merge duplicate MEMERASE code paths
+ - flashcp: simplify logging
+
+## [2.1.5] - 2022-10-07
+### Fixed
+ - mkfs.jffs2: spelling of `--compression-mode` parameter in help text
+ - ubinfo: `--vol_id` return code for absent volume id
+ - nandflipbits: fix corrupted oob
+ - libmtd: do not ignore non-zero eraseblock size when `MTD_NO_ERASE` is set
+ - jffs2reader: warning about unaligned pointer
+ - tests: Remove unused linux/fs.h header from includes
+ - fix test bashism
+ - nanddump: fix writing big images on 32bit machines
+ - nor-utils: fix memory leak
+
+### Changed
+ - flash_otp_dump: make offset optional
+ - nandwrite: warn about writing 0xff blocks
+
+## [2.1.4] - 2022-10-07
+### Added
+ - ubiscan debugging and statistics utility
+
+### Fixed
+ - Some mtd-tests erroneously using sub-pages instead of the full page size
+ - Buffer overrun in fectest
+ - Build failures due to missing jffs2 kernel header
+
+## [2.1.3] - 2021-07-25
+### Added
+ - flashcp: Add new function that copy only different blocks
+ - flash_erase: Add flash erase chip
+ - Add flash_otp_erase
+ - Add an ubifs mount helper
+ - Add nandflipbits tool
+
+### Fixed
+ - mkfs.ubifs: Fix runtime assertions when running without crypto
+ - Use AC_SYS_LARGEFILE
+ - Fix test binary installation
+ - libmtd: avoid divide by zero
+ - ubihealthd: fix UBIFS build dependency
+ - mkfs.ubifs: remove `OPENSSL_no_config()`
+ - misc-utils: Add fectest to build system
+ - mkfs.ubifs: Fix build with SELinux
+ - Fix typos found by Debian's lintian tool
+ - Fix jffs2 build if zlib or lzo headers are not in default paths
+
+## [2.1.2] - 2020-07-13
+### Added
+ - flashcp: Add option `-A`, `--erase-all`
+ - mtd-utils: add optional offset parameter to `flash_otp_dump`
+ - ubi-utils: Implement a ubihealthd
+ - mkfs.ubifs: Add authentication support
+
+### Fixed
+ - mtd-utils: Fix return value of ubiformat
+ - ubiupdatevol: Prevent null pointer dereference
+ - libubigen: remove unnecessary include
+ - libubi: remove private kernel header from includes
+ - mkfs.ubifs: fscrypt: bail from encrypt_block if gen_essiv_salt fails
+ - mkfs.ubifs: abort add_directory if readdir fails
+ - mkfs.ubifs: close file descriptor in add_file error path
+ - mkfs.ubifs: don't leak copied command line arguments
+ - mkfs.ubifs: free derived fscrypt context in add_directory error paths
+ - mkfs.ubifs: don't leak hastable iterators
+ - mkfs.ubifs: don't leak temporary buffers
+ - mkfs.ubifs: propperly cleanup in ALL interpret_table_entry error paths
+ - mkfs.jffs2: don't leak temporary buffer if readlink fails
+ - libmtd: don't leak temporary buffers
+ - ftl_check: don't leak temporary buffers
+ - ftl_format: don't leak temporary buffers
+ - ubiformat: don't leak file descriptors
+ - nanddump: don't leak copied command line arguments
+ - mtd_debug: cleanup error handling in flash_to_file
+ - jittertest: fix error check for open system call
+ - fs-tests: don't leak temporary buffers
+ - mtd-utils: Fix printf format specifiers with the wrong type
+ - mtd-utils: Fix potential negative arguments passed to close(2)
+ - mtd-utils: Fix various TOCTOU issues
+ - mtd-utils: Fix some simple cases of uninitialized value reads
+ - mtd-utils: Fix wrong argument to sizeof in nanddump
+ - mtd-utils: Fix "are we really at EOF" test logic in libubi read_data
+ - mtd-utils: Fix potentially unterminated strings
+ - mtd-utils: Add checks to code that copies strings into fixed sized buffers
+ - mkfs.ubifs: fix broken build if fscrtyp is disabled
+
+### Changed
+ - ubifs-media: Update to Linux-5.3-rc3
+
+## [2.1.1] - 2019-07-21
+### Added
+ - mkfs.ubifs: Add ZSTD compression
+
+### Fixed
+ - ubiformat: Dont ignore sequence number CLI option
+ - mkfs.ubifs: fix build without openssl
+ - mkfs.ubifs: fix regression when trying to store device special files
+ - mkfs.ubifs: fix description of favor_lzo
+ - unittests/test_lib: Include proper header for `_IOC_SIZE`
+ - unittests/libmtd_test: Include fcntl header
+ - unittests: Define the use of `_GNU_SOURCE`
+ - ubinize: Exit with non-zero exit code on error.
+ - mtd-tests: nandbiterrs: Fix issue that just insert error at bit 7
+ - ubi-tests: ubi_mkvol_request: Fully initialize `struct ubi_mkvol_request req`
+ - ubi-tests: io_read: Filter invalid offset before `lseek` in `io_read` test
+ - ubi-tests: mkvol test: Checks return value `ENOSPC` for `ubi_mkvol`
+ - ubi-tests: fm_param: Replace `fm_auto` with `fm_autoconvert`
+
+## [2.1.0] - 2019-03-19
+### Added
+ - mkfs.ubifs: Implement support for file system encryption
+ - mkfs.ubifs: Implement selinux labelling support
+ - ubinize: add support for skipping CRC check of a static volume when opening
+ - ubimkvol: add support for skipping CRC check of a static volume when opening
+ - Add lsmtd program
+
+### Fixed
+ - update various kernel headers
+ - Instead of doing preprocessor magic, just output off_t as long long
+ - fix verification percent display in flashcp
+ - mkfs.ubifs: fix double free
+ - mkfs.ubifs: Fix xattr nlink value
+ - ubinize: avoid to create two `UBI_LAYOUT_VOLUME_ID` volume
+ - common.h: fix prompt function
+ - libmtd: don't print an error message for devices without ecc support
+ - io_paral: Fix error handling of update_volume()
+ - ubimkvol: Initialize req to zero to make sure no flags are set by default
+ - libubi: add volume flags to `ubi_mkvol_request`
+ - mkfs.ubifs: add_xattr is not depending on host XATTR support
+ - Revert "Return correct error number in ubi_get_vol_info1" which
+   introduced a regression.
+ - make sure pkg-config is installed in configure script
+ - ubiformat: process command line arguments before handling file arguments
+
+### Changed
+ - ubiformat: remove no-volume-table option
+
+## [2.0.2] - 2018-04-16
+### Added
+ - libmtd: Add support to access OOB available size
+ - mkfs.ubifs: Allow root entry in device table
+
+### Fixed
+ - Fix unit-test header and file paths for out of tree builds
+ - Fix unit test mockup for oobavail sysfs file
+ - misc-utils: flash_erase: Fix Jffs2 type flash erase problem
+ - libmtd_legacy: Fix some function description mismatches
+ - mtd-utils: ubifs: fix typo in without_lzo definition
+ - mtd: tests: check erase block count in page test
+ - mtd: unittests: Stop testing stat() calls
+ - mtd: unittests: Decode arg size from ioctl request
+ - mtd: unittests: Use proper unsigned long type for ioctl requests
+ - mtd: tests: Fix check on ebcnt in nandpagetest
+ - ubi-utils: ubicrc32: process command line arguments first
+ - nandbiterrs: Fix erroneous counter increment in for loop body
+ - jittertest: Use the appropriate versions of abs()
+ - Mark or fix switch cases that fall through
+ - mkfs.ubifs: ignore EOPNOTSUPP when listing extended attributes
+ - misc-utils: initialize "ip" in docfdisk to NULL
+ - mkfs.ubifs: Apply squash-uids to the root node
+
+### Changed
+ - ubi-utils: ubiformat.c: convert to integer arithmetic
+ - mtd-utils: common.c: convert to integer arithmetic
+ - Run unit test programs through "make check"
+ - Enable more compiler warning flags, fix warnings
+ - Add no-return attribute to usage() style functions
+ - Remove self-assignments of unused paramters
+ - tests: checkfs: Remove unused source file from makefiles
+ - ubi-tests: io_update: fix missleading indentation
+ - Add ctags files to .gitignore
+ - libscan: fix a comment typo in libscan.h
+ - libmtd: fix a comment typo in dev_node2num
+
+## [2.0.1] - 2017-08-24
+### Added
+ - nandbiterrs: Add Erased Pages Bit Flip Test
+ - mkfs.ubifs: Add support for symlinks in device table
+ - nanddump: Add `--skip-bad-blocks-to-start` option
+ - nandwrite: Add `--skip-bad-blocks-to-start` option
+
+### Fixed
+ - common: Always terminate with failure status if command line options
+   are unknown or missing
+ - common: Fix format specifier definitions for `off_t` and `loff_t`
+ - common: More consistent exit codes
+ - libmtd: Fix error status if MTD is not present on the system
+ - libubi: Add klibc specific fixes for `ioctl`
+ - libubi: Fix error status in `ubi_get_vol_info1` for non-existing volumes
+ - misc-utils: Support jffs2 flash-erase for large OOB (>32b)
+ - mkfs.jffs2: Add missing header inclusions required for build with musl
+ - mkfs.ubifs: Fix alignment trap triggered by NEON instructions
+ - mkfs.ubifs: Fix uuid.h path
+ - mkfs.ubifs: Replace broken ubifs_assert with libc assert
+ - nandbiterrs: Actually get the new ECC bit flip count before comparing stats
+ - nandpagetest: Improved argument sanity checking
+ - nandwrite: Fix bad block skipping
+ - nandwrite: Improved argument sanity checking
+ - ubinfo: Improved argument sanity checking
+ - ubi-tests: Replace variable-length array with `malloc`
+ - ubi-tests: Support up to 64k NAND page size
+
+### Changed
+ - build-system: Enable compiler warnings
+ - build-system: Restructure autoconf dependency checking
+ - common: Add const modifier to read only strings and string constants
+ - common: Eliminate warnings about missing prototypes
+ - common: Get rid of rpmatch usage
+ - common: Remove README.udev from ubi-tests extra dist
+ - common: Remove unused variables and functions
+ - common: Silence warnings about unused arguments
+ - flashcp: Drop custom defines for `EXIT_FAILURE` and `EXIT_SUCCESS`
+ - libiniparser: remove unused function needing float
+ - libmissing: Use autoconf header detection directly
+ - libubi: Remove `UDEV_SETTLE_HACK`
+ - misc-utils: Move libfec to common public header & library directory
+ - nandwrite: replace erase loop with mtd_erase_multi
+ - serve_image: Use PRIdoff_t as format specifier.
+ - ubi-tests: Speedup io_paral by using rand_r()
+ - ubirename: Fix spelling
+
+## [2.0.0] - 2016-12-22
+### Added
+ - libmissing with stubs for functions not present in libraries like musl
+ - unittests for libmtd and libubi
+ - port most kernel space mtd test modules to userspace
+ - mkfs.ubifs: extended attribute support
+ - ubinize: Move lengthy help text to a man page
+ - nandwrite: Add skip-all-ff-pages option
+ - flash_{un,}lock: support for MEMISLOCKED
+ - nandtest: support hex/dec/oct for `--offset` and `--length`
+
+### Fixed
+ - common: Fix 'unchecked return code' warnings
+ - common: Fix PRI{x,d}off definitions for x86_64 platform
+ - common: include sys/sysmacros.h for major/minor/makedev
+ - common: fix wrong format specifiers on mips32
+ - libmtd: Fix uninitialized buffers
+ - libmtd: Eliminate warnings about implicit non-const casting
+ - libmtd: Fix return status in mtd_torture test function
+ - libmtd: mtd_read: Take the buffer offset into account when reading
+ - mkfs.ubifs: use gid from table instead 2x uid
+ - mkfs.ubifs: fix compiler warning for WITHOUT_LZO
+ - mkfs.ubifs: fix build when WITHOUT_LZO is set
+ - mkfs.ubifs: correct the size of nnode in memset
+ - mkfs.jffs2: initialize lzo decompression buffer size
+ - mkfs.jffs2: Fix scanf() formatstring for modern C version
+ - nanddump: check write function result for errors
+ - nanddump: write requested length only
+ - flash_{un,}lock: don't allow "last byte + 1"
+ - flash_{un,}lock: improve strtol() error handling
+ - ubinize: Always return error code (at least -1) in case of an error
+ - recv_image: fix build warnings w/newer glibc & _BSD_SOURCE
+ - serve_image: use proper POSIX_C_SOURCE value
+ - flashcp: Use %llu to print filestat.st_size
+ - mtd_debug: check amount of data read.
+ - fs-tests: integrity: don't include header <bits/stdio_lim.h>
+ - tests: Fix endian issue with CRC generation algorithm
+ - make_a_release.sh: fix MTD spelling
+ - Fix packaging of unit test files
+ - Correct casting for final status report in flashcp
+
+### Changed
+ - autotools based build system
+ - complete restructuring of the source tree
+ - cleanup of some utilities
+ - removal of some very old, unused or duplicated files from the source tree
+ - libmtd: removal of very old, completely unused and broken functions
+ - nandwrite: Factor out buffer checking code