• read-only demo server at https://a.ocv.me/pub/demo/
• docker image ╱ similar software ╱ client testbed

there is a discord server with an @everyone in case of future important updates, such as vulnerabilities (most recently 2025-09-07)

recent important news

• v1.19.8 (2025-09-07) fixed CVE-2025-58753 (a missing permission-check inside single-file shares)
• v1.15.0 (2024-09-08) changed upload deduplication to be default-disabled
• v1.14.3 (2024-08-30) fixed a bug that was introduced in v1.13.8 (2024-08-13); this bug could lead to data loss -- see the v1.14.3 release-notes for details

🧪 new features

• hooks got some nice upgrades
  • add flag I to run in-process for a 140x speed boost 41ed559
    • bring your own safeguards (if an I hook has a bug then it can deadlock copyparty)
    • (this is where the releasetitle came from btw)
  • add flag s to send info on stdin instead of argv 4542ad3
  • new hook: reject uploads into ramdisks (granular alternative to wram) efd19af
    • will be default-enabled in the bootable copyparty flashdrive image
• show media-tags inside shares 50276c0
• #881 manga-mode (RTL) for the image viewer (thx @Scotsguy!) dacc64d
• #872 combining chpw and IdP-auth is now supported 3f59710
• #854 auto-incrementing counters for batch-rename d05a88d 76e9f23
• #882 change to volume-specific favicon on navigation 2ce32e4
• #884 option to turn the servername into a link (thx @Morganamilo!) 38cc809 9b7f933
• rss: add option to not embed pw into feed 73ec2d2
• cbz and epub files can become folder-thumbnails eb173be

🩹 bugfixes

• web-ui: only show generic http errors if nothing better is available 0453b7a
• #860 epub-thumbnailer errors are less noisy now 4177c1d
• the ui-filesz option can have a trailing hyphen now 2248705
• hide "create share" button while inside a share c5f1229

🔧 other changes

• #460 example config for running the podman images as a systemd service (thx @danloveg!) 7fc379a
• #886 nixos: option to specify unix-user/group to run as (thx @2Kaleb!) 31f1b53
• #895 mention the ?v suffix to open mediafiles in the mediaplayer f8e1981
• ignore 403s from /favicon.png (samsung-android)
• docker: shrink the min image from 45 to 33 MiB a8f53d5
• #887 add missing entries in --licenses 805a705
• #887 various vendored python libraries can now be ripped out and replaced with system-libs:
  • ifaddr 656f0a6
  • dnslib 39bd4e5
  • qrcodegen 08ebb0b
  • surrogateescape aace711

🌠 fun facts

• today's genre is Techcore (a subgenre of J-core (a subgenre of UKHC))
  • FULLBURST by ぱらどっと is an excellent example
  • omake: speedrun through 18 other genres (pick your favorite)

💾 what to download?

• except for u2c.exe, all of the options above are mostly equivalent
• the zip and tar.gz files below are just source code
• python packages are available at PyPI