Things still to do.  (GH#n) indicates the Github issue tracker number.

Bugs:

  - (GH#5) Transfer IPC leadership on exit of leader
  - (GH#13) Use clock_gettime() in ETA calculation to cope with machine suspend/resume (Mateju Miroslav)
  - (GH#16) Show days in same format in ETA as in elapsed time
  - (GH#18) No output in Cygwin from 1.6.19 onwards (Jacek M. Holeczek)
  - (GH#19) No output in Arch Linux initcpio after 1.6.6 (lacsaP)
  - (GH#20) Terminal state is not restored correctly in all cases (VA)
  - (GH#23) No output with -f when run in background after 1.6.6 (gray)
  - (GH#24) Race condition with multiple "pv -c" leaves terminal state inconsistent (Lars Ellenberg, Viktor Ashirov)
  - (GH#26) Correct "-n" behaviour when going past 100% of "-s" size (Marcel)
  - (GH#27) Rate limit downgrade can take a long time to take effect (Stephen Kitt)
  - (GH#31) No output written from inside zsh <() construct (Frederik Eaton - Dec 2015)
  - (GH#32) Apply rate limits instantaneously, not averaged over the whole transfer (Jered Floyd - Dec 2018)
  - (GH#33) Fix compilation problems due to stat64() on Apple Silicon (Filippo Valsorda - Jan 2021)
  - (GH#34) Continue timer even if input or output is blocking (Martin Probst - Jun 2017)

Feature requests:

  - (GH#3) Option (-x?) to use xterm title line for status (Joachim Haga)
  - (GH#4) Option for process title (Martin Sarsale) as "pv - name:FooProcess -xyz - transferred: 1.3GB - 500KB/s - running: 10:15:30s"
  - (GH#6) Look at effect of O_SYNC or fsync on performance; update counters during buffer flush (
  - (GH#9) Option to switch rate to per minute if really slow
  - (GH#10) Add watchfd tests
  - (GH#11) Option "--progress-from FILE", read last number and use it as bytes read (Jacek Wielemborek)
  - (GH#12) Allow multiple -d options (Linus Heckemann for multiple PID:FD; Jacek Wielemborek)
  - (GH#14) Momentary ETA option (Luc Gommans)
  - (GH#15) Use Unicode for more granular progress bar (Alexander Petrossian)
  - (GH#17) Allow -r with -l and -n to output lines/sec (Roland Kletzing)
  - (GH#21) Options to change the units in the rate display (Jeffrey Paul, John W. O'Brien, David Henderson)
  - (GH#22) Options to skip input and seek on output (Jason A. Pfeil, Feb 2022)
  - (GH#25) Normalise progress to 100% on overrun (Andrej Gantvorg)
  - (GH#28) Calculate ETA based on current average rate instead of global average (Matt, Christoph Biedl)
  - (GH#29) Option to enable O_DIRECT (Romain Kang, Jacek Wielemborek)
  - (GH#30) Option for dynamic interval to improve ETA predictions for long-running transfers (Christoph Biedl)
  - (GH#35) Allow decimal values for -s, -L, -B (Thomas Watson - Aug 2020)
  - (GH#36) Ignore SIGWINCH (window size change) if -w / -H provided
  - (GH#37) Allow -E to take a block size argument so errors cause a skip to the next block (Anthony DeRobertis - Oct 2016)
  - (GH#38) Reset ETA on SIGUSR1 (Jacek Wielemborek - Jan 2019)
  - (GH#39) Use posix_fadvise() like cat(1) does (Jacek Wielemborek - Oct 2015)
  - (GH#40) Permit -c with -d PID:FD, reject -N with -d PID (Norman Rasmussen - Nov 2020)
  - (GH#41) Improve how backwards-moving reads are shown in --watchfd (Ryan Cooley - Dec 2017)
  - (GH#42) Option to discard stdin so nothing is written to stdout (André Stapf - Apr 2017)
  - (GH#43) Differentiate between "--eta" and "--fineta" in display (André Stapf - Apr 2017)
  - (GH#44) Specify size for "-s" by pointing to a filename to use the size of
  - (GH#45) Option --sparse (with block size option) to write sparse output (Andriy Galetski - Apr 2019)
  - (GH#46) Option to show speed gauge (% max speed) if progress not known (Ryan Cooley - Jun 2019)
  - (GH#47) Analyse splice and buffer usage to improve performance
  - (GH#48) Option to show multiple files with individual sizes and a cumulative total (Zach Riggle - Jul 2021)
  - (GH#49) Option to provide stats for avg/min/max/stddev throughput (Venky.N.Iyer)
  - (GH#50) Allow pv to report on a whole pipeline at once (Will Entriken - Feb 2011)

Any assistance would be appreciated.