ICQ2 LINUX RELEASE:Terminal-client research alpha 0.2.02aAUGUST 22, 2026
← Download page

RELEASE NOTES

ICQ² 0.2.02a for Linux

The first native ICQ² terminal-client research alpha for 64-bit Linux. It connects to the same live ICQ2 network as the Windows app.

What is included

  • Registration, saved-session login and reconnect with bounded retry timing.
  • Contacts, authorization requests, groups, aliases and presence.
  • Profile viewing and editing plus Global Directory search by UIN or profile fields.
  • Direct text messages and local history protected with SQLCipher per UIN.
  • Session secrets stored through the desktop Secret Service instead of plaintext files.
  • Signed background updates that stage safely and retain the previous version for rollback.

Install from one file

  1. Download the DEB installer below.
  2. Open your Downloads folder and double-click the file.
  3. Click Install in the software installer.
  4. Open ICQ2 Terminal from the application menu.

Your desktop may ask for the normal system-install password. The first launch verifies the embedded signed release and prepares the client for your user account. Later signed fixes install automatically without replacing your account data.

Download ICQ² 0.2.02a (.deb)

GitHub mirror ↗ · Installer checksums

Advanced manual install

The signed tar release remains available for distributions that do not open DEB packages. Download the installer, archive, detached signature and public key into one directory, then run:

chmod +x install.sh
./install.sh \
  --archive icq2-0.2.02a-linux-x86_64.tar.gz \
  --signature icq2-0.2.02a-linux-x86_64.tar.gz.sig \
  --public-key icq2-unix-update-public-key.pem

The installer creates commands under ~/.local/bin and versioned files in the current user's XDG data directory. Start with icq2-tui; inspect updates with icq2-update --status.

Download install.sh · Download the archive · Download the signature · Download the public key

Verify the download

  • DEB size: 1,647,644 bytes
  • DEB SHA-256: AB163A6295B43A52DE0EEA92C98A9908AFEFA0F4A6EDE5A0FBB18E418FCDE7DB
  • Archive size: 1,648,086 bytes
  • Archive SHA-256: FE41A8A5A7B70A00D557D14D7960C3CD418220790D52E9CD7B111D93A7CE5E80
  • Ed25519 public-key fingerprint (DER SHA-256): C423C34816E445CE74E92D845BD0F8919CFAE4F9D3BA3FEE308217E29A9F2C4B

DEB checksums and signature · Complete SHA-256 checksums · Detailed installation notes

Research-alpha limits

File transfer, contact-card transfer, group chat, calls and end-to-end encryption are not included. Transport is encrypted, but the service can process message contents. ICQ² is an independent project and is not affiliated with Mirabilis, AOL, VK, or the former ICQ service.