Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/amd64/default.sfx and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/amd64/default.sfx differ
Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/amd64/rar and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/amd64/rar differ
diff -Nru rar-5.4.0+dfsg.1/amd64/rarfiles.lst rar-5.5.0/amd64/rarfiles.lst
--- rar-5.4.0+dfsg.1/amd64/rarfiles.lst	2016-08-14 19:19:38.000000000 +0000
+++ rar-5.5.0/amd64/rarfiles.lst	2017-08-11 13:59:17.000000000 +0000
@@ -76,6 +76,7 @@
 *.7z
 *.arj
 *.ha
+*.lz
 *.lzh
 *.rar
 *.zip
diff -Nru rar-5.4.0+dfsg.1/amd64/rar.txt rar-5.5.0/amd64/rar.txt
--- rar-5.4.0+dfsg.1/amd64/rar.txt	2016-08-14 19:19:38.000000000 +0000
+++ rar-5.5.0/amd64/rar.txt	2017-08-11 13:59:17.000000000 +0000
@@ -1,6 +1,6 @@
                              User's Manual
                              ~~~~~~~~~~~~~
-                        RAR 5.40 console version
+                        RAR 5.50 console version
                         ~~~~~~~~~~~~~~~~~~~~~~~~
 
                        =-=-=-=-=-=-=-=-=-=-=-=-=-=-
@@ -279,8 +279,8 @@
             in case several files have the same name.
 
 
-    f       Freshen files in archive. Updates those files changed since they
-            were packed to the archive. This command will not add new files
+    f       Freshen files in archive. Updates archived files older
+            than files to add. This command will not add new files
             to the archive.
 
 
@@ -311,7 +311,7 @@
             Perform case sensitive search of "first level" string
             in *.txt files in *.rar archives on the disk c:
 
-            2) rar ih=f0e0aeaeab2d83e3a9 -r e:\texts
+            2) rar ih=f0e0aeaeab2d83e3a9 -r e:\texts\*.rar
 
             Search for hex string f0 e0 ae ae ab 2d 83 e3 a9
             in rar archives in e:\texts directory.
@@ -604,8 +604,7 @@
 
 
     u       Update files in archive. Adds files not yet in the archive
-            and updates files that have been changed since they were packed
-            into the archive.
+            and updates archived files that are older than files to add.
 
 
     v[t[a],b]
@@ -705,10 +704,10 @@
     -ac     Clear Archive attribute after compression or extraction
             (Windows version only).
 
-            If this switch is specified when archiving, "Archive" file
-            attribute is cleared for successfully compressed files.
-            When extracting, this switch will clear "Archive" attribute
-            for extracted files.
+            If -ac is specified when archiving, "Archive" file attribute
+            is cleared for successfully compressed files. When extracting,
+            -ac will clear "Archive" attribute for extracted files.
+            This switch does not affect directory attributes.
 
 
     -ad     Append archive name to destination path.
@@ -819,13 +818,19 @@
             attributes. in Unix - user, group, and others file permissions.
 
 
-    -ao     Add files with Archive attribute set
+    -ao     Add files with "Archive" attribute set
             (Windows version only).
 
+            If -ao is used when archiving, only files with "Archive"
+            file attribute will be added to archive. This switch does not
+            affect directories, so all matching directories are added
+            regardless of their attributes. You can also specify -ed switch
+            if you prefer to omit all directory records.
+
             Example:
 
-            add all disk C: files with Archive attribute set
-            to the 'f:backup' and clear files Archive attribute
+            add all disk C: files with "Archive" attribute set
+            to the 'f:backup' and clear files "Archive" attribute
 
             rar a -r -ac -ao f:backup c:\*.*
 
@@ -1298,10 +1303,10 @@
     -ma[4|5]
             Specify a version of archiving format.
 
-            By default RAR creates archives in RAR 4.x format.
-            Use -ma5 or just -ma to create RAR 5.0 archives.
-            Use -ma4 in case you need to override -ma5 saved
-            in configuration and force RAR to use RAR 4.x format.
+            By default RAR creates archives in RAR 5.0 format.
+            Use -ma4 to create RAR 4.x archives.
+            Use -ma5 or just -ma in case you need to override -ma4 saved
+            in configuration and force RAR to use RAR 5.0 format.
 
             This switch is used only when creating a new archive.
             It is ignored when updating an existing archive.
@@ -1329,8 +1334,8 @@
               A       - audio compression;
               C       - true color (RGB) data compression;
               D       - delta compression;
-              E       - 32-bit x86 executables compression;
-              I       - 64-bit Intel Itanium executables compression;
+              E       - x86 executable compression;
+              I       - Intel Itanium executable compression;
               T       - text compression.
 
             RAR 5.0 archive format supports only 'D' and 'E' values.
@@ -1357,9 +1362,8 @@
             <Param2> is ignored.
 
 
-            32-bit x86 Intel executables compression,
-            64-bit Intel Itanium executables compression,
-            true color (RGB) data compression:
+            x86 Intel executable compression, Intel Itanium executable
+            compression, true color (RGB) data compression:
 
             <Param1> and <Param2> are ignored.
 
@@ -1443,9 +1447,10 @@
             and 64 bit versions can unpack archives with all dictionaries
             up to and including 1 GB.
 
-            RAR can reduce the dictionary size if it is significantly
-            larger than source data size. It helps to reduce memory
-            requirements without decreasing compression.
+            If size of all source files for solid archive or size of largest
+            source file for non-solid archive is at least twice less than
+            dictionary size, RAR can reduce the dictionary size. It helps
+            to lower memory usage without decreasing compression.
 
             Default sliding dictionary size is 4 MB for RAR 4.x
             and 32 MB for RAR 5.0 archive format.
@@ -1481,8 +1486,8 @@
             If <list> is not specified, -ms switch will use the default
             set of extensions, which includes the following file types:
 
-            7z, ace, arj, bz2, cab, gz, jpeg, jpg, lha, lzh, mp3,
-            rar, taz, tgz, xz, z, zip
+            7z, ace, arj, bz2, cab, gz, jpeg, jpg, lha, lz, lzh, mp3,
+            rar, taz, tgz, xz, z, zip, zipx
 
 
     -mt<threads>
@@ -1649,16 +1654,17 @@
             RAR adds all links regardless of target when archiving with
             -ol switch. When extracting, by default, RAR skips symbolic
             links pointing outside of destination directory, with absolute
-            paths or excessive number of ".." in link target. You can enable
-            extracting such links with -ola switch.
+            paths, excessive number of ".." in link target or with other
+            potentially dangerous link parameters. You can enable extracting
+            such links with -ola switch.
 
             Links pointing to directories outside of extraction destination
             directory can present a security risk. Enable their extraction
             only if you are sure that archive contents is safe,
             such as your own backup.
 
-            Links with relative paths inside of destination directory
-            in target are extracted always regardless of -ol or -ola switch.
+            Links that are considered safe by RAR are extracted always
+            regardless of -ol or -ola switch.
 
 
     -oni    Allow potentially incompatible names.
@@ -1919,6 +1925,7 @@
             of the following values:
 
               U - Unicode UTF-16;
+              F - Unicode UTF-8;
               A - the native single byte encoding, which is ANSI
                   for Windows version;
               O - OEM (DOS) encoding. Windows version only.
@@ -2093,55 +2100,42 @@
             of the switch is the same as -tn<time>.
 
 
-    -ts<m,c,a>[N][+|-]
+    -ts[m|c|a][+|-|1]
             Save or restore file time (modification, creation, access).
 
-            Switch -tsm instructs RAR to save file modification time,
-            -tsc - creation time and tsa - last access time. 
-
-            For RAR 4.x archive format the optional parameter after
-            the switch is the number between 0 and 4 controlling
-            the file time precision. Value '1' enables 1 second precision,
-            2 - 0.0065536 sec, 3 - 0.0000256 sec and 4 or '+' enables
-            the maximum NTFS time precision, which is equal to
-            0.0000001 sec. Value '0' or '-' means that creation
-            and access time are not saved and low (two seconds) precision
-            is used for modification time. Higher precision modes add
-            more data to archive, up to 19 additional bytes per file
-            in case of -tsm4 -tsa4 -tsc4 combination. If no precision
-            is specified, RAR uses '4' (high) value.
-
-            RAR 5.0 archive format saves file times either with 1 second
-            precision for parameter value '1' or with maximum NTFS precision
-            for '2', '3' and '4'. '0' forces RAR 5.0 archives to omit
-            file time even if it is modification time, so unpacked files
-            will have the current system time.
-
-            Default RAR mode is -tsm4 -tsc0 -tsa0, so modification time
-            is stored with the high precision and other times are ignored.
+            Use -tsm to save the file modification time, -tsc for creation
+            time and -tsa for last access time. Multiple -ts switches,
+            such as -tsc -tsa, are allowed. If 'm', 'c' or 'a' are not
+            specified, all three file times are assumed.
+
+            Append '+' to store a file time with maximum possible precision.
+            Concrete value depends on a operating system and file system
+            and can be up 100 nanoseconds in Windows and 1 nanosecond
+            in Unix. Append '1' to set 1 second precision or '-' to not save
+            a file time. If '+', '-' or '1' are not present, '+' is assumed,
+            so -ts+ and -ts both save all three high precision times.
+
+            RAR 4.x archives always contain the modification time
+            and for RAR 4.x archive -tsm- still saves the modification time
+            with the lowest possible 2 second precision. Two other times
+            can be disabled. RAR 5.0 archives allow to omit any file time
+            including modification, so unpacked files will have the current
+            system time. Switches -tsm- -tsc- -tsa or just -ts- will store
+            a low precision modification time for RAR 4.x and no file time
+            for RAR 5.0 archive.
+            
+            If -ts switch is not specified, RAR stores the high precision
+            modification time and omits two other times.
 
             It is necessary to specify -tsc and -tsa switches to set
-            creation and access time when unpacking files (precision
-            is irrelevant, but must not be 0). By default RAR sets
-            only the modification time, even if archive contains
-            creation and last access time. Setting the modification
-            time to unpacked files may be also disabled with -tsm-.
-
-            It is possible to omit the time type letter if you need
-            to apply the switch to all three times. For example,
-            -tsm4 -tsa4 -tsc4 can be replaced by -ts4, -ts+ or -ts.
-            Use -ts- to save only the low precision modification time
-            for RAR 4.x archives, not store file time for RAR 5.0 archives
-            or to ignore all three file times on unpacking.
-
-            When creating an archive, RAR automatically reduces
-            the precision if high mode is not supported by the file
-            system. It is not more than 2 seconds on FAT and 1 second
-            in Unix. NTFS time precision is 0.0000001 second.
-
-            Operating systems limit which time can be set on unpacking.
-            Windows allows to set all three times, Unix - modification
-            and last access, but not creation.
+            creation and access times when unpacking. By default RAR sets
+            only the modification time, even if archive contains other times.
+            Use -tsm- or just -ts- to set the current system time instead of
+            modification time stored in archive for unpacked files.
+
+            Windows allows to set all three file times when unpacking.
+            In Unix we can set the modification and last access, but not
+            creation time.
 
             Examples:
 
@@ -2151,14 +2145,14 @@
 
             2) rar x -tsa backup
 
-            Restore modification and last access time. Switch -tsm
-            is not required, because RAR uses it by default.
+            Restore modification and last access time. Switch -tsm is not
+            required, because RAR sets the modification time by default.
+            If we wish to restore only the last access time, we should use
+            -tsm- -tsa switches.
 
             3) rar a -tsm1 -tsc1 backup
 
-            Store low precision modification and creation time.
-            Without -tsm1 RAR would save the high precision modification
-            time.
+            Store low precision modification and creation times.
 
 
     -u      Update files. May be used with archive extraction or creation.
@@ -2463,7 +2457,7 @@
 
  Copyrights
 
-    (c) 1993-2016 Alexander Roshal
+    (c) 1993-2017 Alexander Roshal
 
 
 
diff -Nru rar-5.4.0+dfsg.1/amd64/readme.txt rar-5.5.0/amd64/readme.txt
--- rar-5.4.0+dfsg.1/amd64/readme.txt	2016-08-14 19:19:38.000000000 +0000
+++ rar-5.5.0/amd64/readme.txt	2017-08-11 13:59:17.000000000 +0000
@@ -4,9 +4,6 @@
    high compression ratios on executable files, object libraries,
    large text files, etc.
 
- * RAR offers an optional compression algorithm highly optimized
-   for multimedia data.
-
  * RAR provides functionality for creating a 'solid' archive, which
    can raise the compression ratio by 10% - 50% over more common
    methods, particularly when packing large numbers of small files.
Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/amd64/unrar and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/amd64/unrar differ
diff -Nru rar-5.4.0+dfsg.1/amd64/whatsnew.txt rar-5.5.0/amd64/whatsnew.txt
--- rar-5.4.0+dfsg.1/amd64/whatsnew.txt	2016-08-14 19:19:38.000000000 +0000
+++ rar-5.5.0/amd64/whatsnew.txt	2017-08-11 13:59:17.000000000 +0000
@@ -1,6 +1,49 @@
                 RAR - What's new in the latest version
 
 
+   Version 5.50
+
+   1. RAR uses RAR 5.0 archive format by default. You can change it to
+      RAR 4.x compatible format with -ma4 command line switch.
+
+   2. Added support for 1 nanosecond file time precision on Unix platform.
+
+   3. You can specify 'f' charset value in -sc switch to use UTF-8
+      encoding. For example:
+
+      rar a -scfl arcname @filelist.txt
+
+      to read contents of filelist.txt as UTF-8 text.
+
+   4. RAR "lt" and "vt" commands display file times with nanosecond
+      precision. Such precision is used in RAR5 archives created
+      by RAR/Unix 5.50. Archives created by Windows RAR version
+      have 100ns file time precision.
+
+   5. Only '+', '-' and '1' precision modifiers are supported
+      in -ts switch now. Use '+' to store the file time with maximum
+      precision, '-' to omit the file time and '1' to store it with
+      1 second precision. Intermediate precision modes previously
+      defined with '2' and '3' modifiers are not available in RAR 5.0
+      archive format and ignored by -ts switch.
+
+   6. If a wrong password is entered when unpacking an encrypted file
+      in RAR5 archive, RAR proposes to enter a valid password
+      for same file again instead of aborting extraction.
+
+   7. Bugs fixed:
+
+      a) fixed crashes and security vulnerability when unpacking corrupt
+         RAR archives;
+
+      b) directory owners were not set when extracting RAR5 archives
+         created with -ow switch;
+
+      c) if only creation or only last access file time was stored in RAR5
+         archive with 1 second precision, such as with -ma5 -tsm- -tsa1
+         switches, this stored time was ignored when extracting.
+
+
    Version 5.40
 
    1. If RAR recovery volumes (.rev files) are present in the same directory
diff -Nru rar-5.4.0+dfsg.1/debian/changelog rar-5.5.0/debian/changelog
--- rar-5.4.0+dfsg.1/debian/changelog	2017-05-04 02:52:05.000000000 +0000
+++ rar-5.5.0/debian/changelog	2017-08-29 10:10:31.000000000 +0000
@@ -1,3 +1,9 @@
+rar (2:5.5.0-1) unstable; urgency=medium
+
+  * New upstream release
+
+ -- Martin Meredith <mez@debian.org>  Tue, 29 Aug 2017 11:10:31 +0100
+
 rar (2:5.4.0+dfsg.1-0.1) unstable; urgency=medium
 
   * Non-maintainer upload
Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/default.sfx and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/default.sfx differ
Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/rar and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/rar differ
diff -Nru rar-5.4.0+dfsg.1/rarfiles.lst rar-5.5.0/rarfiles.lst
--- rar-5.4.0+dfsg.1/rarfiles.lst	2016-08-14 19:19:10.000000000 +0000
+++ rar-5.5.0/rarfiles.lst	2017-08-11 13:58:07.000000000 +0000
@@ -76,6 +76,7 @@
 *.7z
 *.arj
 *.ha
+*.lz
 *.lzh
 *.rar
 *.zip
diff -Nru rar-5.4.0+dfsg.1/rar.txt rar-5.5.0/rar.txt
--- rar-5.4.0+dfsg.1/rar.txt	2016-08-14 19:19:10.000000000 +0000
+++ rar-5.5.0/rar.txt	2017-08-11 13:58:07.000000000 +0000
@@ -1,6 +1,6 @@
                              User's Manual
                              ~~~~~~~~~~~~~
-                        RAR 5.40 console version
+                        RAR 5.50 console version
                         ~~~~~~~~~~~~~~~~~~~~~~~~
 
                        =-=-=-=-=-=-=-=-=-=-=-=-=-=-
@@ -279,8 +279,8 @@
             in case several files have the same name.
 
 
-    f       Freshen files in archive. Updates those files changed since they
-            were packed to the archive. This command will not add new files
+    f       Freshen files in archive. Updates archived files older
+            than files to add. This command will not add new files
             to the archive.
 
 
@@ -311,7 +311,7 @@
             Perform case sensitive search of "first level" string
             in *.txt files in *.rar archives on the disk c:
 
-            2) rar ih=f0e0aeaeab2d83e3a9 -r e:\texts
+            2) rar ih=f0e0aeaeab2d83e3a9 -r e:\texts\*.rar
 
             Search for hex string f0 e0 ae ae ab 2d 83 e3 a9
             in rar archives in e:\texts directory.
@@ -604,8 +604,7 @@
 
 
     u       Update files in archive. Adds files not yet in the archive
-            and updates files that have been changed since they were packed
-            into the archive.
+            and updates archived files that are older than files to add.
 
 
     v[t[a],b]
@@ -705,10 +704,10 @@
     -ac     Clear Archive attribute after compression or extraction
             (Windows version only).
 
-            If this switch is specified when archiving, "Archive" file
-            attribute is cleared for successfully compressed files.
-            When extracting, this switch will clear "Archive" attribute
-            for extracted files.
+            If -ac is specified when archiving, "Archive" file attribute
+            is cleared for successfully compressed files. When extracting,
+            -ac will clear "Archive" attribute for extracted files.
+            This switch does not affect directory attributes.
 
 
     -ad     Append archive name to destination path.
@@ -819,13 +818,19 @@
             attributes. in Unix - user, group, and others file permissions.
 
 
-    -ao     Add files with Archive attribute set
+    -ao     Add files with "Archive" attribute set
             (Windows version only).
 
+            If -ao is used when archiving, only files with "Archive"
+            file attribute will be added to archive. This switch does not
+            affect directories, so all matching directories are added
+            regardless of their attributes. You can also specify -ed switch
+            if you prefer to omit all directory records.
+
             Example:
 
-            add all disk C: files with Archive attribute set
-            to the 'f:backup' and clear files Archive attribute
+            add all disk C: files with "Archive" attribute set
+            to the 'f:backup' and clear files "Archive" attribute
 
             rar a -r -ac -ao f:backup c:\*.*
 
@@ -1298,10 +1303,10 @@
     -ma[4|5]
             Specify a version of archiving format.
 
-            By default RAR creates archives in RAR 4.x format.
-            Use -ma5 or just -ma to create RAR 5.0 archives.
-            Use -ma4 in case you need to override -ma5 saved
-            in configuration and force RAR to use RAR 4.x format.
+            By default RAR creates archives in RAR 5.0 format.
+            Use -ma4 to create RAR 4.x archives.
+            Use -ma5 or just -ma in case you need to override -ma4 saved
+            in configuration and force RAR to use RAR 5.0 format.
 
             This switch is used only when creating a new archive.
             It is ignored when updating an existing archive.
@@ -1329,8 +1334,8 @@
               A       - audio compression;
               C       - true color (RGB) data compression;
               D       - delta compression;
-              E       - 32-bit x86 executables compression;
-              I       - 64-bit Intel Itanium executables compression;
+              E       - x86 executable compression;
+              I       - Intel Itanium executable compression;
               T       - text compression.
 
             RAR 5.0 archive format supports only 'D' and 'E' values.
@@ -1357,9 +1362,8 @@
             <Param2> is ignored.
 
 
-            32-bit x86 Intel executables compression,
-            64-bit Intel Itanium executables compression,
-            true color (RGB) data compression:
+            x86 Intel executable compression, Intel Itanium executable
+            compression, true color (RGB) data compression:
 
             <Param1> and <Param2> are ignored.
 
@@ -1443,9 +1447,10 @@
             and 64 bit versions can unpack archives with all dictionaries
             up to and including 1 GB.
 
-            RAR can reduce the dictionary size if it is significantly
-            larger than source data size. It helps to reduce memory
-            requirements without decreasing compression.
+            If size of all source files for solid archive or size of largest
+            source file for non-solid archive is at least twice less than
+            dictionary size, RAR can reduce the dictionary size. It helps
+            to lower memory usage without decreasing compression.
 
             Default sliding dictionary size is 4 MB for RAR 4.x
             and 32 MB for RAR 5.0 archive format.
@@ -1481,8 +1486,8 @@
             If <list> is not specified, -ms switch will use the default
             set of extensions, which includes the following file types:
 
-            7z, ace, arj, bz2, cab, gz, jpeg, jpg, lha, lzh, mp3,
-            rar, taz, tgz, xz, z, zip
+            7z, ace, arj, bz2, cab, gz, jpeg, jpg, lha, lz, lzh, mp3,
+            rar, taz, tgz, xz, z, zip, zipx
 
 
     -mt<threads>
@@ -1649,16 +1654,17 @@
             RAR adds all links regardless of target when archiving with
             -ol switch. When extracting, by default, RAR skips symbolic
             links pointing outside of destination directory, with absolute
-            paths or excessive number of ".." in link target. You can enable
-            extracting such links with -ola switch.
+            paths, excessive number of ".." in link target or with other
+            potentially dangerous link parameters. You can enable extracting
+            such links with -ola switch.
 
             Links pointing to directories outside of extraction destination
             directory can present a security risk. Enable their extraction
             only if you are sure that archive contents is safe,
             such as your own backup.
 
-            Links with relative paths inside of destination directory
-            in target are extracted always regardless of -ol or -ola switch.
+            Links that are considered safe by RAR are extracted always
+            regardless of -ol or -ola switch.
 
 
     -oni    Allow potentially incompatible names.
@@ -1919,6 +1925,7 @@
             of the following values:
 
               U - Unicode UTF-16;
+              F - Unicode UTF-8;
               A - the native single byte encoding, which is ANSI
                   for Windows version;
               O - OEM (DOS) encoding. Windows version only.
@@ -2093,55 +2100,42 @@
             of the switch is the same as -tn<time>.
 
 
-    -ts<m,c,a>[N][+|-]
+    -ts[m|c|a][+|-|1]
             Save or restore file time (modification, creation, access).
 
-            Switch -tsm instructs RAR to save file modification time,
-            -tsc - creation time and tsa - last access time. 
-
-            For RAR 4.x archive format the optional parameter after
-            the switch is the number between 0 and 4 controlling
-            the file time precision. Value '1' enables 1 second precision,
-            2 - 0.0065536 sec, 3 - 0.0000256 sec and 4 or '+' enables
-            the maximum NTFS time precision, which is equal to
-            0.0000001 sec. Value '0' or '-' means that creation
-            and access time are not saved and low (two seconds) precision
-            is used for modification time. Higher precision modes add
-            more data to archive, up to 19 additional bytes per file
-            in case of -tsm4 -tsa4 -tsc4 combination. If no precision
-            is specified, RAR uses '4' (high) value.
-
-            RAR 5.0 archive format saves file times either with 1 second
-            precision for parameter value '1' or with maximum NTFS precision
-            for '2', '3' and '4'. '0' forces RAR 5.0 archives to omit
-            file time even if it is modification time, so unpacked files
-            will have the current system time.
-
-            Default RAR mode is -tsm4 -tsc0 -tsa0, so modification time
-            is stored with the high precision and other times are ignored.
+            Use -tsm to save the file modification time, -tsc for creation
+            time and -tsa for last access time. Multiple -ts switches,
+            such as -tsc -tsa, are allowed. If 'm', 'c' or 'a' are not
+            specified, all three file times are assumed.
+
+            Append '+' to store a file time with maximum possible precision.
+            Concrete value depends on a operating system and file system
+            and can be up 100 nanoseconds in Windows and 1 nanosecond
+            in Unix. Append '1' to set 1 second precision or '-' to not save
+            a file time. If '+', '-' or '1' are not present, '+' is assumed,
+            so -ts+ and -ts both save all three high precision times.
+
+            RAR 4.x archives always contain the modification time
+            and for RAR 4.x archive -tsm- still saves the modification time
+            with the lowest possible 2 second precision. Two other times
+            can be disabled. RAR 5.0 archives allow to omit any file time
+            including modification, so unpacked files will have the current
+            system time. Switches -tsm- -tsc- -tsa or just -ts- will store
+            a low precision modification time for RAR 4.x and no file time
+            for RAR 5.0 archive.
+            
+            If -ts switch is not specified, RAR stores the high precision
+            modification time and omits two other times.
 
             It is necessary to specify -tsc and -tsa switches to set
-            creation and access time when unpacking files (precision
-            is irrelevant, but must not be 0). By default RAR sets
-            only the modification time, even if archive contains
-            creation and last access time. Setting the modification
-            time to unpacked files may be also disabled with -tsm-.
-
-            It is possible to omit the time type letter if you need
-            to apply the switch to all three times. For example,
-            -tsm4 -tsa4 -tsc4 can be replaced by -ts4, -ts+ or -ts.
-            Use -ts- to save only the low precision modification time
-            for RAR 4.x archives, not store file time for RAR 5.0 archives
-            or to ignore all three file times on unpacking.
-
-            When creating an archive, RAR automatically reduces
-            the precision if high mode is not supported by the file
-            system. It is not more than 2 seconds on FAT and 1 second
-            in Unix. NTFS time precision is 0.0000001 second.
-
-            Operating systems limit which time can be set on unpacking.
-            Windows allows to set all three times, Unix - modification
-            and last access, but not creation.
+            creation and access times when unpacking. By default RAR sets
+            only the modification time, even if archive contains other times.
+            Use -tsm- or just -ts- to set the current system time instead of
+            modification time stored in archive for unpacked files.
+
+            Windows allows to set all three file times when unpacking.
+            In Unix we can set the modification and last access, but not
+            creation time.
 
             Examples:
 
@@ -2151,14 +2145,14 @@
 
             2) rar x -tsa backup
 
-            Restore modification and last access time. Switch -tsm
-            is not required, because RAR uses it by default.
+            Restore modification and last access time. Switch -tsm is not
+            required, because RAR sets the modification time by default.
+            If we wish to restore only the last access time, we should use
+            -tsm- -tsa switches.
 
             3) rar a -tsm1 -tsc1 backup
 
-            Store low precision modification and creation time.
-            Without -tsm1 RAR would save the high precision modification
-            time.
+            Store low precision modification and creation times.
 
 
     -u      Update files. May be used with archive extraction or creation.
@@ -2463,7 +2457,7 @@
 
  Copyrights
 
-    (c) 1993-2016 Alexander Roshal
+    (c) 1993-2017 Alexander Roshal
 
 
 
diff -Nru rar-5.4.0+dfsg.1/readme.txt rar-5.5.0/readme.txt
--- rar-5.4.0+dfsg.1/readme.txt	2016-08-14 19:19:10.000000000 +0000
+++ rar-5.5.0/readme.txt	2017-08-11 13:58:07.000000000 +0000
@@ -4,9 +4,6 @@
    high compression ratios on executable files, object libraries,
    large text files, etc.
 
- * RAR offers an optional compression algorithm highly optimized
-   for multimedia data.
-
  * RAR provides functionality for creating a 'solid' archive, which
    can raise the compression ratio by 10% - 50% over more common
    methods, particularly when packing large numbers of small files.
Binary files /tmp/tmphDAVzO/lAOqir5Xmb/rar-5.4.0+dfsg.1/unrar and /tmp/tmphDAVzO/Q9jRLDJoKc/rar-5.5.0/unrar differ
diff -Nru rar-5.4.0+dfsg.1/whatsnew.txt rar-5.5.0/whatsnew.txt
--- rar-5.4.0+dfsg.1/whatsnew.txt	2016-08-14 19:19:10.000000000 +0000
+++ rar-5.5.0/whatsnew.txt	2017-08-11 13:58:07.000000000 +0000
@@ -1,6 +1,49 @@
                 RAR - What's new in the latest version
 
 
+   Version 5.50
+
+   1. RAR uses RAR 5.0 archive format by default. You can change it to
+      RAR 4.x compatible format with -ma4 command line switch.
+
+   2. Added support for 1 nanosecond file time precision on Unix platform.
+
+   3. You can specify 'f' charset value in -sc switch to use UTF-8
+      encoding. For example:
+
+      rar a -scfl arcname @filelist.txt
+
+      to read contents of filelist.txt as UTF-8 text.
+
+   4. RAR "lt" and "vt" commands display file times with nanosecond
+      precision. Such precision is used in RAR5 archives created
+      by RAR/Unix 5.50. Archives created by Windows RAR version
+      have 100ns file time precision.
+
+   5. Only '+', '-' and '1' precision modifiers are supported
+      in -ts switch now. Use '+' to store the file time with maximum
+      precision, '-' to omit the file time and '1' to store it with
+      1 second precision. Intermediate precision modes previously
+      defined with '2' and '3' modifiers are not available in RAR 5.0
+      archive format and ignored by -ts switch.
+
+   6. If a wrong password is entered when unpacking an encrypted file
+      in RAR5 archive, RAR proposes to enter a valid password
+      for same file again instead of aborting extraction.
+
+   7. Bugs fixed:
+
+      a) fixed crashes and security vulnerability when unpacking corrupt
+         RAR archives;
+
+      b) directory owners were not set when extracting RAR5 archives
+         created with -ow switch;
+
+      c) if only creation or only last access file time was stored in RAR5
+         archive with 1 second precision, such as with -ma5 -tsm- -tsa1
+         switches, this stored time was ignored when extracting.
+
+
    Version 5.40
 
    1. If RAR recovery volumes (.rev files) are present in the same directory