2.12 / 21-Jan-2024 - Fixed - QueryMode documentation in configuration file didn't match implementation or man page description - Daemon didn't try to import legacy databases when --noadd was used and no current version database initially existed resulting in the process exiting even when something could have been done - Daemon didn't try to import legacy databases when --initdb was used and no current version database initially existed, this behaviour can still be enabled by using --noadd in combination with --initdb - Using --nodaemon and --initdb at the same time didn't result in an error being shown - New - Add 95th percentile output as --95th, also available via --alert, --json, --xml and image output, requires 5MinuteHours configuration to be set to at least 744 for storing all the necessary data - Add --json support for --alert - Database queries resulting in error exit with status 1 - Show spinning animation at the beginning of -l / --live output line, visibility configurable using LiveSpinner configuration option - Add -ic / --invert-colors option to image output for facilitating for example dark mode switching without needing to have multiple separate color configurations - Add dark mode option to image output example cgi (examples/vnstat.cgi) - Add option 4 to QueryMode for selecting summary output of single interface regardless of the number of interfaces in the database - Add optional mode parameter to -q / --query for overriding QueryMode for summary output and for enabling control of summary output style regardless of the number of interfaces in the database - Add --startempty option to daemon for starting and keeping the daemon running even if no interfaces were discovered and the database is empty - Add --noremove option to daemon for disabling the automatic removal of interfaces from database that aren't currently visible and haven't seen any traffic - Add third mode option to --iflist and --dbiflist for getting only the interface count as output 2.11 / 19-Aug-2023 - Fixed - Database queries worked only if SQLite double-quoted string (DQS) feature (https://www.sqlite.org/quirks.html#dblquote) was enabled - Disabling data resolutions in data retention configuration didn't result in possibly existing database entries getting removed from the database - Disabling data resolutions in data retention configuration didn't result in the data resolution getting disabled but instead storing data forever - "expr: syntax error" during configure in BSD (pull request by namtsui) - Image output summary would show only "no data available" text in case of zero total traffic even when the historical data of no traffic could have been shown instead - Image output "-o -" content could get corrupted due to info, warning and error messages also using stdout, configuration file warnings being the most likely source, now uses stderr in image output - Configuration validation was too heavily limiting and enforcing image output 5 minute graph related configuration options for combinations that would have resulted in usable images - New - Database cleanup has been changed to interpret data retention configuration as number of entries to be kept instead of calendar time, this restores the behaviour to similar as it was up to version 1.18, the difference is visible only on systems that aren't powered all the time - Database is vacuumed during daemon startup and reload, behaviour is configurable using VacuumOnStartup and VacuumOnHUPSignal configuration options - Add configuration option InterfaceOrder for controlling the interface order in outputs with multiple interfaces - Used data retention configuration is made visible during daemon startup and after configuration reloads - Daemon will no longer start if all data resolutions have been disabled in the configuration file - SQLite version is visible in --version outputs - Notes - "Not enough data available yet." message has been replaced with "No data. Timestamp of last update is same YYYY-MM-DD HH:MM:SS as of database creation." to better explain the reason why there's nothing to show, this message is expected to disappear within configured SaveInterval if the interface is active 2.10 / 22-Oct-2022 - Fixed - BandwidthDetection in BSD wasn't correctly converting kernel reported bits per second values to Mbits per second resulting in a sanity check being triggered and detected values not being used expect for PPPoE interfaces which incorrectly were detected as 64000 Mbit - Image output of 5 minute graph wasn't possible if data retention of the 5 minute time period was configured as unlimited (pull request by Sebastian Lechte) - Estimates and average rates weren't calculated correctly for daily, monthly and yearly time periods when monitoring of the interface had been started during the ongoing time period - Estimates weren't being shown in summary output when OutputStyle or --style was configured with a value less than 2 (vnstat) - Alignment of column header in short output wasn't correct when OutputStyle or --style was configured with the value 0 (vnstat) - New - Support input of more than 31 characters in interface name when using interface1+interface2 syntax data merge queries - Support passing --config option multiple times, later files override earlier files if settings overlap (vnstat and vnstati) - Add configuration option EstimateVisible for controlling the visibility of the estimate line - Add configuration option EstimateText for modifying the default "estimated" text string when the estimate line is visible - Add --style support to -tr / --traffic output - Add summary option to --json and --xml outputs - Add timestamps to --json and --xml outputs - Add Prometheus compatible metrics endpoint cgi to examples (examples/vnstat-metrics.cgi) 2.9 / 23-Jan-2022 - Fixed - RescanDatabaseOnSave configuration option wasn't being read from the configuration file resulting in the feature always being enabled - Hourly graph image output using large fonts didn't correctly fade out the x-axis line for hours not having data available - New - Add --alert for producing output and/or specific exit status when configured condition and transfer limit is exceeded, can also be used for "quota remaining" type of queries depending on used parameters - Add configuration option InterfaceMatchMethod which allows configuring the possibility of specifying an interface for database queries by using its alias instead of system provided interface name, enabled by default to support case insensitive matching of the beginning of interface aliases (vnstat and vnstati) - Image output file extension allows selecting the used image file format as long as the used LibGD supports it, PNG is no longer the only option - Add configuration option HourlyGraphMode for changing the output mode of the graph, 0 = 24 hour sliding window (default, as in previous releases), 1 = graph begins from midnight - Add mode parameter for -hg / --hoursgraph options for overriding the HourlyGraphMode configuration option setting from the command line - Add vertical line to image output hourly graph to visualize midnight - Add -t / --timestamp options to daemon for enabling timestamps to prints when the daemon is running in the foreground attached to a terminal - Accept ; as comment character in configuration file in addition to # - Comment out keywords which are using default values with ; character in provided configuration file and --showconfig output 2.8 / 4-Sep-2021 - Fixed - Using a combination of --live and --json wasn't flushing stdout after each line resulting in buffered output if the output was being piped - Image output would fail to show the last line bar graph in list outputs if EstimateStyle was 0, BarColumnShowsRate was 1 and the last line had a higher traffic rate than other lines - Image output didn't correctly horizontally align the "no data available" message in 5 minute graph depending on the width of the image - Image output related configuration warnings could get shown when image output wasn't being used - Warnings of mismatches between image output and data retention configuration didn't provide relevant details for solving the issues - BandwidthDetection was being used for tun interfaces even when the Linux kernel had the information hardcoded to 10 Mbit regardless of the used real interface, interface specific MaxBW will now be used instead or MaxBandwidth as fallback - Configured interface specific MaxBW values were getting overridden by BandwidthDetection when something could be detected - Image output horizontal rx/tx bars often had one pixel too much width in the tx section resulting in slightly wrong ratio getting shown - Top days list wasn't always sorting entries with exactly the same traffic sum using ascending date - 64bitInterfaceCounters with value -2 always assumed 32-bit on Linux systems until a 64-bit value was seen if kernel headers weren't available when binaries were built - New - Add the possibility of specifying an interface without using the -i / --iface options (vnstat and vnstati) - The daemon can discover added interfaces from the database without requiring a restart, configurable with option RescanDatabaseOnSave - Add configuration option UseUTC for using UTC as timezone for database entries instead of following the system timezone configuration - --iflist uses user configured interface specific MaxBW values in the output when available instead of showing only the kernel provided information when detected - Add configuration option AlwaysAddNewInterfaces to expose the daemon --alwaysadd command line option which gains an optional mode parameter - Image output uses LibGD filled arc bug workaround only for LibGD versions that are known to be broken - Image output example cgi (examples/vnstat.cgi) improvements - Automatically lists all monitored interfaces instead of requiring the list to be filled manually, server name in page title comes from hostname command by default - Provides links for most available images to more detailed or longer versions of each image - Allows direct interface specific page access with /interfacename suffix for the cgi if the used httpd supports PATH_INFO - Page auto refresh can be enabled with configurable interval 2.7 / 16-May-2021 - Fixed - Possibility of segmentation fault with image list output when database existed but no data was available - ./configure output could show invalid install paths with some parameter combinations (pull request by Severin Glöckner) - Columns in text hours graph output could get misaligned if the selected system locale used a UTF-8 sequence for the thousands separator instead of a single character - New - Add -5g / --fivegraph options to image output with sizing related parameters for the output of a 5 minute resolution bar graph - Add configuration option SummaryGraph and optional parameter for --hsummary and --vsummary for selecting which graph is shown next to the summary data in the horizontal and vertical summary image outputs - Add --large / --small options and configuration option LargeFonts for controlling the image output font size - Add --scale and configuration option ImageScale for scaling the image output to a given percent - Add configuration option LineSpacingAdjustment for adjusting the line spacing of list format image outputs - Add bar visualizations for traffic estimations in image output - Allow writing image output to a filename starting with - - Add --initdb to daemon for creating a new empty database without having the daemon process staying running, doesn't discard data if a database already exists - Add configuration option BarColumnShowsRate for having the bar column in image list outputs be scaled according to the average rate column values when those values are visible, disabled by default - Add --dbiflist for getting a list of interfaces in the database, both --iflist and --dbiflist also get alternative more parseable outputs - Add configuration option for large font output and make 5 minute resolution graph visible in vnstat.cgi 2.6 / 20-Jan-2020 - Fixed - --json and --xml didn't support having both mode and limit parameters defined at the same time as documented, broken since previous release - Documentation was using a mix of "count" and "limit" for the option of limiting the maximum number of shown entries in queries - Summary image output would segmentation fault when the database existed but didn't yet contain any daily or monthly data for the selected interface - New - Add --limit as an alternative way for controlling the length of outputs 2.5 / 14-Jan-2020 - Fixed - Automatic interface selection wasn't done for --traffic and --live when the Interface configuration setting was left empty - --setalias didn't do anything when used in combination with --add - -l / --live and -tr default to first interface instead of producing an error if a interface merge is requested 2.4 / 18-Aug-2019 - Fixed - Daemon didn't correctly wait when acquiring database lock for data write which could result in unnecessary errors and even process exit if an external database read operation had exactly the same timing as the daemon write operation - Daemon didn't fork() even when requested to with --daemon when started by PID 1 (issue seen at least in Docker containers) - Move vnstatd man page from section 1 to section 8 - New - Add --rename for renaming interfaces already existing the database 2.3 / 10-Jul-2019 - Fixed - Traffic rate wasn't being shown for the last entry of most lists during the first update of the next period (first SaveInterval minutes of each new hour, day, month and year) - Systemd example service file could result in database file write issues if the used systemd version supported ProtectSystem=strict but didn't support StateDirectory (issue seen at least with systemd 232 in Debian 9) - Debian and Red Hat init.d example files had wrong path for the pid file - Interfaces could end up staying marked as 'disabled' in the database even after becoming back active and monitored, only the shown status was wrong without resulting in any data loss - Some image outputs didn't allocate enough height for the image resulting in the last row having less space below it than intended - New - Automatic interface selection when the Interface configuration setting is left empty (new default) - Add configuration option DatabaseWriteAheadLogging to enable SQLite Write-Ahead Logging mode which may provide some disk i/o benefits, see https://www.sqlite.org/wal.html for more details and note that SQLite 3.22.0 or later is required to support read-only operations - Add configuration option DatabaseSynchronous for changing the SQLite setting of the "synchronous" flag, see https://www.sqlite.org/pragma.html#pragma_synchronous for more details - Show warning in log if writing cached data to database is slow - Try database query for up to 5 seconds when database is busy or locked instead of giving up immediately - Continue daemon process execution with data caching if database writes fail due to disk being full 2.2 / 28-Apr-2019 - Fixed - O_CLOEXEC undeclared error when compiling with glibc older than 2.12 - Image output --headertext wasn't being applied to some output types - DefaultDecimals setting wasn't controlling all outputs - Traffic rate for the last entry of the 5 minute resolution list wasn't being correctly calculated - New - Detection of 32-bit / 64-bit kernel interface counters for improving traffic calculations in rollover situations, cfg: 64bitInterfaceCounters - Possibility in queries to merge data from multiple interfaces to one output with interface1+interface2 syntax - Highlight current day in top list when visible - Changes in interface specific detected bandwidth limits are reported in the log - UpdateInterval value is automatically adjusted during daemon startup if found to be too high compared to the value of MaxBandwidth - Notes - Added clarification to the man page that the 'jsonversion' and 'xmlversion' fields in the --json and --xml outputs should be seen as the API version and compared to the previously used version in 3rd party implementations for verifying compatibility - Default value of UpdateInterval is now 20 instead of previous 30 seconds 2.1 / 6-Dec-2018 - Fixed - --oneline could segmentation fault if database had total traffic values set but didn't have any daily or monthly traffic (Arch bug #60588) - No proper error message was produced when querying interface which didn't exist in the database - Several typos and spelling mistakes in documentation - Daemon:waittimesync_does_not_wait_with_new_interfaces test was failing if the system used a time zone with a negative numeric value - Traffic estimate and average rate for ongoing month was not being calculated correctly when MonthRotate had a value greater than 1 - Accuracy of traffic estimate and average rate for the ongoing month could be slightly skewed depending on the used time zone - New - Remove possible PollInterval and UpdateInterval drift over time - Sync SaveInterval to full minutes 2.0 / 21-Oct-2018 - Fixed - Data rate calculations when using SI decimal prefixes - Workaround for filled arcs not drawn correctly with some versions of libgd (libgd/libgd#351) - New - C struct dump database has been replaced with sqlite database, full data import included from legacy databases of versions 1.3 - 1.18 - User configurable data retention durations for all resolutions with following changed defaults: v1.18 v2.0 5 minutes n/a 576 (48 hours) hours 24 96 (4 days) days 30 62 (2 full months) months 12 25 (2 full years) years n/a all top days 10 20 - Option to select units to use SI decimal prefixes using calculations with powers of 1000 (IEC and JEDEC prefixes use powers of 1024) - Yearly and 5 minute resolution statistics - Pebibyte and exbibyte support - Options the configure the length of each list output - Option to limit the length of --json and --xml outputs - Hourly list output replaces the hourly graph when the -h parameter is used - Hourly graph is accessible with -hg / --hoursgraph parameter - Options -b / --begin and -e / --end for specifying query time range - Configuration comes with ISO 8601 date formats as new defaults - Removed - Weekly output - Merge of data from multiple interfaces to one output - --testkernel - --exportdb, use --oneline, --json or --xml instead - --importdb, -u / --update and related options using vnstat command - Old style (default in versions up to 1.7) summary layout in image output 1.18 / 4-Mar-2018 - Fix: Misspellings, compiler warnings and possible error situations (pull requests by Christian Göttsche) - Hardening added to examples/systemd/vnstat.service (pull request by Christian Göttsche) - Add RTC sanity check and sync wait to daemon startup, the possible wait duration can be configured using the TimeSyncWait keyword - Add optional parameter to --oneline output for forcing fields to output in bytes - Add --json support for -l / --live and -tr outputs - Number of decimals used in outputs can be configured using DefaultDecimals and HourlyDecimals - Add section separators for improving readability of the vnstat -h output, configurable using HourlySectionStyle 1.17 / 16-Feb-2017 - Fix: --importdb was creating invalid databases since version 1.15 - Fix: console output was being buffered which resulted in lack of output in at least systemd log - Add cross-compilation detection and improve install-data-hook to not assume that the binaries can be executed in the host system 1.16 / 24-Dec-2016 - Fix: traffic rate calculation, SI decimal prefixes were shown but calculation was done for IEC binary prefixes - Add option for configure to disable image output support even if required library is available, improve library detection (pull request by Rodrigo Rebello) - Add selection between SI decimal prefixes (kbit/s...) (default) and IEC binary prefixes (Kibit/s...) for traffic rate using RateUnitMode keyword in configuration file - Improve database handling resilience - Inherit database file ownership from database directory if UpdateFileOwner configuration option is enabled (default: enabled) when adding new interfaces for monitoring as root. This solves database file ownership mismatches when the daemon is started as a non-root user and an interface gets added for monitoring with a sudo command as root - Improve user guidance in error situations related to the configured default interface 1.15 / 22-Dec-2015 - Fix: XML output had extra commas, broken since previous version - Fix: unintended shared pointer modification in mosecs() sometimes resulted in wrong month name to be shown for the current month - Fix: possible buffer overflow in /proc/net/dev parsing, requires corrupted content in /proc/net/dev or use of address sanitizer (found by Hanno Böck) - Use ANSI escape codes in -l and -tr modes for cursor location manipulation instead of printing backspaces, hide cursor while output is active - Improve database import robustness - Improve support for Asian UTF-8 date strings - Replace hand written Makefiles with Autotools - Add --alwaysadd parameter to daemon for allowing automatic addition of interfaces even if the database directory was populated during startup 1.14 / 26-Apr-2015 - Fix: JSON output syntax during first day of newly created databases (pull request by Stefan Merettig) - Fix: field padding when using UTF-8 locale - Add optional mode parameter to --json and --xml for limiting the output to only selected information 1.13 / 18-Jan-2015 - Fix: getgroup() test in Debian GNU/kFreeBSD (patch by Felix Geyer) - Fix: struct if_data usage after freeifaddrs() call in BSD - Dynamic unit selection in hourly output instead of being fixed to KiB - New options in image output (vnstati) * -nl / --nolegend for hiding the rx/tx legend * --altdate for using alternative date and time text location * --headertext for using custom text string in image header section - Add legend to hourly output image - Add option for content alignment and page background color to vnstat.cgi - Document keyword value ranges in configuration file man page - Import Makefile improvements from OpenBSD (pull requests by Jasper Lievisse Adriaanse) - Automatic interface bandwidth detection, BandwidthDetection in config, default fallback value MaxBandwidth changed from 100 to 1000 - JSON output (--json), vnstat-json.cgi and vnstat-json.php examples provided in the 'examples' directory - Drop support for over 10 year old database formats (versions 1.0 - 1.2) 1.12 / 30-Aug-2014 - Fix: Memory allocation when zero interfaces are available, also lo needed to be missing in order to trigger this leak - Fix: Rebuild total indexing (thanks to William Epp for reporting this) - Fix: Some error situations could leave database file open until the end of command execution - Fix: Live traffic meter occasionally showing higher minimum than average in end statistics (Debian Bug #687812) - Fix: Setting locale when none is specified in config (Debian Bug #606397) - Fix: Cppcheck findings (may fix Debian Bug #692330) - Improve traffic meter output accuracy - Add tests and debug compilation target - Remove use of -D parameter in Makefile install commands in order to improve cross-compilation support - Set CFLAGS in Makefiles only when not already defined - Add support for database import from text file (--importdb) (based on patch by Tilmann Bubeck) - Rename --dumpdb to --exportdb - Add example systemd service file - Add example launchd plist file for OS X - Use ISO YYYY-MM-DD date format timestamps if logfile is used - Improve daemon startup prints - Add parameters for changing daemon process user and group - Add example upstart job configuration file (thanks to Cameron Norman) - Create database, pid and log dirs during daemon startup if necessary - Update ownership of database, log and pid files if needed during daemon startup if started as root and configured to change process user and group - Remove cron update related example files and documentation, the cron update method should be considered as deprecated - --create parameter for database creation 1.11 / 1-Jun-2011 - Fix: Memory allocation was miscalculated when creating interface list from /sys/class/net when /proc/net/dev wasn't available which in turn could crash the daemon - Fix: Daemon database cache could remain empty after a -HUP signal - Fix: Don't make temp directory in vnstat.cgi writable for everyone - Import GNU/kFreeBSD support from Debian (#608963, patch by Mats Erik Andersson) - Remove usage of GNU only '-D' option for install for BSD in Makefile - The daemon now automatically creates databases for available interfaces if no databases are found during startup 1.10 / 2-Jan-2010 - Fix: Buffer overflow was possible in hourly image output when RateUnit=1 and HourlyRate=1 - Fix: Minor memory leak was possible in the handling of HUP signal in daemon - Fix: Graphical elements weren't correctly aligned in summary image when header wasn't visible (-nh) - Fix: --delete didn't work - Possibility to merge statistics from several databases and save the end result to a new database (--mergesaved) - Added validation of database cache in daemon in order to be more robust in case of system memory corruption - Support for --style to -l (live mode) - Alternative print mode to -l (live mode) with optional parameter - Present options and elements in man pages in alphabetical order - Code cleanup 1.9 / 12-Sep-2009 - Fix: TrafficlessDays configuration option was enabled when set to zero when it should have been disabled - Fix: MonthRotate setting was getting ignored for the first month if the database is created when day of month < MonthRotate value - Configurable summary layout in image output (1.7 <> 1.8 layouts) - --oneline, a simple parseable one line output - --transparent for setting image background transparency from the command line - --delete for deleting databases and stopping monitoring, doesn't require restarting the daemon - A database write can be configure to occur after interface status changes - Different database write interval can be configure to be used when all monitored interfaces are offline - Better configurability for the content of outputs, including a narrow output for space limited terminals (OutputStyle and --style) - Code cleanup - New configuration file settings: OutputStyle, SummaryLayout, SummaryRate, SaveOnStatusChange, OfflineSaveInterval 1.8 / 1-Aug-2009 - Fix: OpenBSD print issues (was: ' used for formatting in sprintf) - Fix: Monthly estimate for February during a leap year was wrong - Fix: 'make install' didn't install the config file is $(DESTDIR) was used - Traffic of current and previous months added to summary - Increased accuracy of monthly estimate calculation - Traffic rates can be made visible and the shown unit is configurable as bits or bytes - New summary layout in image output - Image output can have the background color set as transparent - Possibility to merge data from several interfaces to one output with interface1+interface2 syntax - -s / --sync parameter added to daemon - --dbdir and --locale parameters added - Outputs now use system locale by default and formatting of dates follow the locale setting unless configured otherwise - New configuration file settings: ShowRate, RateUnit, TrafficlessDays, HourlyRate, TransparentBg 1.7 / 12-Apr-2009 - Fix: Timezone changes shouldn't cause a flood of errors anymore - Fix: Statvfs used instead of statfs for BSD compatibility (Thanks to Mark Mitchell for pointing this out) - Fix: Makefile didn't properly support LDFLAGS and -lm was misplaced - Fix: MonthRotate value in config wasn't used - Fix: Unreadable configuration file doesn't cause a segmentation fault - Fix: /proc/net/dev parser didn't see the difference between eth10 and eth1 - Fix: Updating a database from two of more processes at the same time was able to sometimes cause data loss - Fix: Estimates are calculated based on last database update - Fix: Each interface update had a possibility of losing 1023 bytes of traffic at most due to improper rounding (Thanks to Michael Berlin for suggesting a suitable correction) - Daemon support as alternative for cron based updates - PNG image output (hourly rate based on patch by Sergio Ammirata) - XML output - BSD support - Diskspace check can be disabled from configuration file - IEC standard prefixes (KiB/MiB/GiB/TiB) - List of available interfaces if wrong of unavailable interface is selected 1.6 / 1-Jan-2008 - Fix: Segmentation fault when environment variable "HOME" wasn't defined, this broke most CGI and PHP scripts that used vnStat - Support for /sys/class/net/* if /proc/net/dev is unavailable - Config file parser redesigned - --config parameter for selecting config file - Consistent exit status for all operations (0 for success, 1 for error) - Improved file locking - Man page restrictions paragraph updated - Minor non-visible fixes and code cleanup 1.5 / 3-Dec-2007 - Fix: compile time warnings solved - Fix: kernel test is now more verbose - Fix: more informative error messages - Fix: possible division by zero for traffic estimates right after midnight - Fix: interface names longer than 6 chars (patch by Jan Schmidle) - Realtime transfer rate mode - Automatic 32bit/64bit counter detection - Config file support - Internal database backups and locking - More visuals in outputs - Adaptive units (kB, MB, GB, TB) - Possibility to sync counters without counting traffic - Maximum bandwidth of interfaces can be set 1.4 / 26-Mar-2004 - Fix: major output problems when compiled with some compilers (thanks to DukePyrolator for reporting this bug and Juha / vlu for testing the patch) - Fix: month rotation if database isn't updated every day - Minor non-visible fixes and code cleanup 1.3 / 8-Mar-2004 - Fix: support for 64bit counters - Fix: 'yesterday' was showing 01.01. with new databases - Fix: free space warning changed from 1% to 1MB - Fix: minor security exploit - A man page has been included - Hourly output with textgraphical view - kBs are visible when traffic is under 1000 MB - Webpage moved to http://humdi.net/vnstat/ - Minor visual updates 1.2 / 7-Oct-2003 - Changed file paths to conform with FHS (http://www.pathname.com/fhs/) /usr/local/bin/vnstat -> /usr/bin/vnstat /var/spool/vnstat -> /var/lib/vnstat - Added FAQ - Included sample scripts for pppd users - Support for 64bit counters in /proc/net/dev (Thanks to Stephan van Hienen for the test account) - Actual date is shown if the previous day in the database isn't yesterday - Weekly and last 7 days traffic can be shown. (Thanks to Derk-Jan Hartman for the suggestion) - Average kB/s meter - --testkernel fixed - Documentation for --dumpdb included in the README 1.1 / 13-Jul-2003 - Support for multiple interfaces - Date checking (update shouldn't be before previous update) - New database structure - Possibility to change date output format - Test tool for faulty kernels - Parseable output - Better support for ppp/dsl users - Free diskspace check - Possibility to change month rotation day (like 25. instead of 1.) - Daily/monthly traffic estimation 22-Nov-2002 - Renamed the cron script file that would be installed to /etc/cron.d from vnstat.cron to vnstat because debian systems didn't execute scripts containing dots (Thanks to frangen / Simo Salminen for this note) 1.0 / 23-Sep-2002 - Initial public release