path: root/ChangeLog

What's new in version 3.3.0

* Multiple refactorings and code improvements
* Shorten docker container IDs to 12 characters
* Settings: preserve empty header
* Fix execlp() argument without pointer cast
* OpenFilesScreen: Make column sizing dynamic for file size, offset and inode
* Add support for "truss" (FreeBSD equivalent of "strace")
* Darwin: add NetworkIOMeter support
* HeaderLayout: add "3 columns - 40/30/30", "... 30/40/30" & "... 30/30/40"
* Meter: use correct unicode characters for digit '9'
* Note in manual re default memory units of KiB
* Add column for process container name
* Add logic to filter the container name (+type) from the CGroup name
* Change NetworkIOMeter value unit from KiB/s to bytes/second
* Cap DiskIOMeter "utilisation" percentage at 100%
* PCP platform implementation of frontswap and zswap accounting
* Shorten podman/libpod container IDs to 12 characters
* Write configuration to temporary file first
* Incorporate shared memory in bar text
* Move shared memory next to used memory
* Correct order of memory meter in help
* Add recalculate to Ctrl-L refresh
* Update process list on thread visibility toggling
* Support dynamic screens with 'top-most' entities beyond processes
* Introduce Row and Table classes for screens beyond top-processes
* Rework ZramMeter and remove MeterClass.comprisedValues
* More robust logic for CPU process percentages (Linux & PCP)
* Show year as start time for processes older than a year
* Short-term fix for docker container detection
* default color preset: use bold blue for better visibility
* Document 'O' keyboard shortcut
* Implement logic for '--max-iterations'
* Update F5 key label on tab switch (Tree <-> List)
* Force re-sorting of the process list view after switching between list/treeview mode
* Linux: (hack) work around the fact that Zswapped pages may be SwapCached
* Linux: implement zswap support
* {Memory,Swap}Meter: add "compressed memory" metrics
* Darwin: add DiskIOMeter support
* Fix scroll relative to followed process
* ZramMeter: update bar mode
* Use shared real memory on FreeBSD
* Increase Search and Filter max string length to 128
* Improve CPU computation code
* Remove LXC special handling for the CPU count
* Create new File Descriptor meter
* PCP: add IRQ PSI meter
* Linux: add IRQ PSI meter
* Linux: highlight username if process has elevated privileges
* Add support for scheduling policies
* Add a systemd user meter to monitor user units.
* FreeBSD: remove duplicate zfs ARC size subtraction

What's new in version 3.2.2

* CPUMeter now can show frequency in text mode
* Add option to render distribution path prefixes shadowed
* DiskIOMeter converts to bytes per second (not per interval)
* DiskIOMeter uses complete units, including missing "iB/s"
* DiskIOMeter indicates read and write in meter mode
* NetworkIOMeter converts to packets per second, shows packet rate
* Allow continued process following when changing display settings
* Update the panel header when changing to another tab
* Drop margin around the header if there are no meters
* Use Unicode replacement character for non-printable characters
* Default color preset uses bold blue for better visibility
* Update the Panel header on sort order inversions ('I')
* Toggle the header meters with pound key
* Fix ScreenPanel to handle quitting the panel while renaming
* Add fallback for HOME environment variable using passwd database
* Replace meaningless ID column with FD column in lock screen
* Use device format in the lock screen matching the files screen
* On Linux, improvements to file-descriptor lock detection
* On Linux, further distinguish systemd states in the SystemdMeter
* On Linux, improvements to cgroup and container identification
* On Linux, support openat(2) without readlinkat(2) platforms
* On Darwin, fix current process buffer handling for busy systems
* On DragonFly BSD, fix incorrect processor time of processes
* On FreeBSD, fix an issue with the memory graph not showing correctly
* On FreeBSD, add support for displaying shared memory usage
* On PCP, use pmLookupDescs(3) if available for efficiency
* On PCP, normalize generic columns values for consistent display
* On PCP, changes preparing for configurable, dynamic screens
* Handle invalid process columns from the configuration file
* Avoid undefined behaviour with deeply nested processes
* Fix crash when removing the currently active screen
* Prevent possible crash on a very early error path
* Include automake for Debian/Ubuntu
* Restore non-mouse support
* Reject unsupported command line arguments
* Document idle process state
* Clarify M_TRS/M_DRS columns

What's new in version 3.2.1

* Fix setting to show all branches collapsed by default
* Restore functionality of stripExeFromCmdline setting
* Fix some command line display settings not being honored without restart
* Display single digit precision for CPU% greater than 99.9%
* On Linux, FreeBSD and PCP consider only shrinkable ZFS ARC as cache
* On Linux, increase field width of CPUD% and SWAPD% columns
* Colorize process state characters in help screen
* Use mousemask(3X) to enable and disable mouse control
* Fix heap buffer overflow in Vector_compact
* On Solaris, fix a process time scaling error
* On Solaris, fix the build
* On NetBSD, OpenBSD and Solaris ensure env buffer size is sufficient
* On Linux, resolve processes exiting interfering with sampling
* Fix ProcessTable quadratic removal when scanning processes
* Under LXC, limit CPU count to that given by /proc/cpuinfo
* Improve container detection for LXC
* Some minor documentation fixes

What's new in version 3.2.0

* Support for displaying multiple tabs in the user interface
* Allow multiple filter and search terms (logical OR, separate by "|")
* Set correct default sorting direction (defaultSortDesc)
* Improve performance for process lookup and update
* Rework the IOMeters initial display
* Removed duplicate sections on COMM and EXE
* Highlight process UNINTERRUPTIBLE_WAIT state (D)
* Show only integer value when CPU% more than 99.9%
* Handle rounding ambiguity between 99.9 and 100.0%
* No longer leaves empty the last column in header
* Fix header layout and meters reset if a header column is empty
* Fix PID and UID column widths off-by-one error
* On Linux, read generic sysfs batteries
* On Linux, do not collect LRS per thread (it is process-wide)
* On Linux, dynamically adjust the SECATTR and CGROUP column widths
* On Linux, fix a crash in LXD
* On FreeBSD, add support for showing process emulation
* On Darwin, lazily set process TTY name
* Always set SIGCHLD to default handling
* Avoid zombie processes on signal races
* Ensure last line is cleared when SIGINT is received
* Instead of SIGTERM, pre-select the last sent signal
* Internal Hashtable performance and sizing improvements
* Add heuristics for guessing LXC or Docker from /proc/1/mounts
* Force elapsed time display to zero if process started in the future
* Avoid extremely large year values when printing time
* Fix division by zero when calculating IO rates
* Fix out of boundary writes in XUtils
* Fix custom thread name display issue
* Use AC_CANONICAL_HOST, not AC_CANONICAL_TARGET in configure.ac
* Support libunwind of LLVM

What's new in version 3.1.2

* Bugfix for crash when storing modified settings at exit
* Generate xz-compressed source tarball (with configure) using github actions
* Allow -u UID with numerical value as argument
* Added documentation for obsolete/state libraries/program files highlighting
* Some obsolete/stale library highlighting refinements
* Column width issues resolved
* Dynamic UID column sizing improved
* Discard stale information from Disk and Network I/O meters
* Refined Linux kernel thread detection
* Reworked process state handling
* New CCGROUP column showing abbreviated cgroup name
* New OFFSET column in the list of open files screen

What's new in version 3.1.1

* Update license headers to explicitly say GPLv2+
* Document minimum version for libcap (thanks to James Brown)
* Fix mouse wheel collision with autogroups nice adjustment
* Adjust Makefile.am macro definitions for older automake versions
* Ensure consistent reporting of MemoryMeter 'used' memory
* Report hugepage memory as real and used memory (as before)
* Handle procExeDeleted, usesDeletedLib without mergedCommandline mode
* Validate meter configuration before proceeding beyond htoprc parsing
* Properly release memory on partially read configuration
* Handle interrupted sampling from within libpcp PDU transfers
* On Linux, provide O_PATH value if not defined
* On Linux, always compute procExeDeleted if already set
* Workaround for Rosetta 2 on Darwin (thanks to Alexander Momchilov)
* Fix FreeBSD cmdline memory leak in Process_updateCmdline, and
* Plug a Disk I/O meter memory leak on FreeBSD (thanks to Ximalas)

What's new in version 3.1.0

* Updated COPYING file to remove the PLPA exemption (appendix 2)
  With this change the license is now GPLv2 without any additional wording.
* Improved default sort ordering
  Note for users: This may lead to an inverted sort order on startup of
  htop 3.1.0 compared to previous versions.
  This is due to what is stored in your htoprc file. Solution: Press I
  (to invert sort order).
  This changed setting will be saved by htop on exit as long as it can
  write to your htoprc file.
* The compile-time option to cater specifically for running htop as
  setuid has been removed
* Add read-only option
  This allows htop to be run in an non-intrusive fashion where it acts only
  as a process viewer disabling all functions to manipulate system state.
  Note: This is not a security feature!
* Move the code for handling the command line formatting related tasks
  to be shared across all platforms
  This means important features like stale binary/library highlighting
  can now be available on all supported platforms.
* Make the EXE and COMM columns available on all platforms
  All supported platforms have the name of the executable (EXE) and a
  self-chosen thread/command name (COMM) available one way or the other.
  Moving this column to be handled as a platform-independently available
  information simplifies the markup of the command line.
* Introduce configuration file versioning and config_reader_min_version
  Starting with this version the configuration file contains a version
  identifying the minimum version of the configuration parser needed to
  fully understand the configuration file format.
  Old configuration file formats are automatically upgraded when
  saving the config file (htoprc).
* Make the configuration parser friendlier to users (thanks to Bart Bakker)
  With this change only settings that cannot be parsed properly are
  reset to their defaults.
* Improve default display for systems with many CPUs
* Add the process ELAPSED time column
* Improve the process STATE column sorting
* Reworked handling resize and redrawing of the UI
* Fixed an issue where the LED meter mode could overflow allotted space
* Allow text mode Meters to span empty neighbors to the right
* Rescale graph meters when value of total changes
  (thanks to Michael Schönitzer)
* Update generic process field display
  Usually "uninteresting" values in columns like 1 thread, nice value
  of 0, CPU and memory of 0%, idle/sleeping state, etc. are shown with
  reduced intensity (dark grey)
* Option and key ("*") to collapse / expand all branches under PID 1
  (and PID 2 if kernel threads are shown) (thanks to Krishna Chaitanya)
* Keep following a process when inverting the sort order, displaying
  the help screen or hiding/unhiding userland threads.
  If a thread is currently selected the selection is updated to point
  to the thread's parent process. (thanks to Gonzalo, et.al.)
* Reorder process scanning to be performed before updating the display
  of the meters in the header
* Always check the user for a process for any changes.
  This affects multiple platforms that previously didn't correctly handle
  the user field for a process to change at runtime (e.g. due to seteuid
  or similar syscalls).
* Disable mouse option when support is unavailable
* Support curses libraries without ncurses mouse support
  (thanks to Santhosh Raju)
* Support offline and hot-swapping of CPUs on all platforms
* Fix the CPU Meter for machines with more than 256 CPUs
* Supplemented the "show updated/deleted executables" feature (red basename)
  to indicate when linked libraries were updated (yellow basename)
* Apply the stale binary highlighting for the EXE column in addition to
  the command line field
* Add new combined Memory and Swap meter
* Implement bar and graph mode for NetworkIO Meter
  (thanks to Michael F. Schönitzer)
* Rework TTY column to be more consistent across platforms
* Make the CWD column generally available on all platforms
  (thanks to Santhosh Raju et. al.)
* Add Performance Co-Pilot (PCP) platform support
  This is added via a separate pcp-htop(1) binary which provides remote host
  analysis, new Meters for any PCP metric and new Columns for any PCP process
  metric - see the pcp-htop(5) man page for further details.
  (thanks to Sohaib Mohamed)
* Add Linux columns and key bindings for process autogroup identifier
  and nice value
* Change available and used memory reporting on Linux to be based on
  MemAvailable (Kernel 3.14+) (thanks to Chris Cheney and Tomas Wido)
* Add a new SysArchMeter showing kernel and platform information
  (thanks to ahgamut)
* Linux memory usage explicitly treats tmpfs memory usage as shared memory
  This is to make memory used by tmpfs visible as this cannot be freed
  unlike normal filesystem cache data.
* Exclude zram devices when calculating DiskIO on Linux
* Use PATH lookup for systemctl in systemd meter (thanks to Scott Olson)
* Add native platform support for NetBSD
  This allows htop to run on NetBSD without the need for active Linux
  emulation of the procfs filesystem.
  (thanks to Santhosh Raju and Nia Alarie)
* Add NetworkIO, DiskIO, CPU frequency, and battery meter support on NetBSD
  (thanks to Nia Alarie)
* Fix NetBSD display of in-use and cached memory (thanks to Nia Alarie)
* Rework NetBSD CPU and memory accounting (thanks to Santhosh Raju)
* Fix NetBSD accounting of user and kernel threads (thanks to Santhosh Raju)
* Initial work to allow building with default libcurses on NetBSD
  (thanks to Santhosh Raju)
* FreeBSD updates - implement process majflt and processor column values
* Add FreeBSD support for CPU frequency and temperature
* Fixes and cleanups for ZFS Meters and metrics
* Correctly color the ZFS ARC ratio (thanks to Ross Williams)
* Bugfixes related to CPU time display/calculations for darwin on M1 systems
  (thanks to Alexander Momchilov)
* Harmonize the handling of multiple batteries across different platforms.
  The system is now considered to run on AC if at least one power supply
  marked as AC is found in the system.
  Battery capacity is summed up over all batteries found.
  This also changes the old behavior that batteries reported by the
  system after the first AC adapter where sometimes ignored.
* Correctly handle multiple batteries on Darwin.
  Resolves a possible memory leak on systems with multiple batteries.
* Handle Linux Shmem being part of Cached in the MemoryMeter
* Add SwapCached to the Linux swap meter (thanks to David Zarzycki)
* Convert process time to days if applicable (thanks to David Zarzycki)
* Always show the number of threads in the TaskMeter, even when threads
  are not shown in the process list
* Fix Linux --drop-capabilities option handling
* Correctly detect failure to initialize Linux boottime
* Overhaul the Linux memory fields to partition them like free(1) now does
* Improve the Linux process I/O column values
* Rework the libsensors parsing on Linux
* Update the MemoryMeter to display shared memory
* Update OpenBSD platform - implement additional columns, scan LWP,
  proper markup for STATE, show CPU frequency
* Fix the tree view on OpenBSD when hiding kernel threads
* Remove old InfoScreen lines before re-scanning (thanks to Øystein Hiåsen)
* Document historic naming of Light-Weight Processes column aka threads
* Improve user interaction when the last process entry is selected
* Draw the panel header on the TraceScreen (thanks to Youngjae Lee)
* Add mouse wheel scroll and fix mouse selection on the InfoScreen
  (thanks to Youngjae Lee)
* Add a HugepageMeter and subtract hugepages from normal memory
* Display wide characters in LED meters and restore non-wide ncurses support
* Add command line option to drop Linux capabilities
* Support scheduler affinity on platforms beyond Linux
* Report on any failure to write the configuration file
* Cache stderr to be able to print assert messages.
  These messages are shown in case htop terminates unexpectedly.
* Print current settings on crash
* Reset signal handlers on program exit
* Add configure script option to create a static htop binary
* Resolved longer-standing compilation issues on Solaris/Illumos
* Check for availability of set_escdelay in configure
  (thanks to Stefan Polluks)
* Build system updates for autotools 2.70

What's new in version 3.0.5

* BUGFIX / SECURITY: InfoScreen: fix uncontrolled format string
* BUGFIX: Improve white text in the Light Terminal colour scheme
  (both of the above thanks to V)
* Enable the function bar on the main screen to be hidden (see Setup -> Display options)
* BUGFIX: Reduce layout issues esp. around printing wide characters (not complete yet)
* BUGFIX: Make the follow function exit cleanly after followed process died
* Solaris: make Process callbacks static
* Update help and man page for improved -t / -s options
* Drop usage of formatted error messages from <err.h>
* Show arrow indicating order of sorted process column
* Lots of plumbing around the internal Hashtable, hardening and code cleanups
* LibSensors: add support for Ryzen CPUs
  (thanks to Matej Dian)
* BUGFIX: Fix CPU percentage on M1 silicon Macs
  (thanks to Luke Groeninger)
* LoadMeter: dynamically adjust color and total of bar
* Find libsensors.so.4 for Fedora and frie