Download Latest Version
Download TelcoChisel OS v2026.4.0 (Ubuntu 24.04 LTS, 100 Telecom Tools) (5.5 GB)
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| Name | Modified | Size | Downloads / Week |
|---|---|---|---|
| Parent folder | |||
| README.md | 2026-10-19 | 3.0 kB | |
| TelcoChisel-2026.4.0-amd64.iso.md5 | 2026-10-19 | 65 Bytes | |
| TelcoChisel-2026.4.0-amd64.iso.sha256 | 2026-10-19 | 97 Bytes | |
| TelcoChisel-2026.4.0-amd64.iso.build-info.json | 2026-10-19 | 459 Bytes | |
| TelcoChisel-2026.4.0-amd64.iso | 2026-10-19 | 5.5 GB | |
| Totals: 5 Items | 5.5 GB | 5 | |
TelcoChisel v2026.4.0
Advanced 5G/4G cellular security & telecom auditing live OS by TelcoSec.
| Field | Value |
|---|---|
| Build | v2026.4.0 |
| Date | 2026-10-19 |
| ISO | TelcoChisel-2026.4.0-amd64.iso |
| ISO Size | 5.2G |
| SHA-256 | b6947f8f500094273121fc6e6fa06df4b8e534b2c736e1210aca35fbdc78fb77 |
| Base | Ubuntu 24.04 LTS (Noble Numbat) |
⬇ Download
Download TelcoChisel-2026.4.0-amd64.iso directly from this folder — it is a single, ready-to-write
image. No extraction or reassembly is needed. (Split .part-* chunks exist
only on the GitHub mirror, for GitHub's 2 GB per-asset limit.)
Or always grab the current stable release via the one-click link: https://sourceforge.net/projects/telcochisel/files/latest/download
Verify the download
# Linux / macOS
sha256sum -c TelcoChisel-2026.4.0-amd64.iso.sha256
# Windows PowerShell
Get-FileHash .\TelcoChisel-2026.4.0-amd64.iso -Algorithm SHA256
Write to USB
lsblk # find the target USB (e.g. /dev/sdX)
sudo dd if=TelcoChisel-2026.4.0-amd64.iso of=/dev/sdX bs=4M status=progress conv=fsync
Or use BalenaEtcher / Rufus (DD Image mode). Boot via UEFI (Secure Boot disabled) or Legacy BIOS.
Live boot credentials:
telcosec/telcosec
Changes since last release
362e593 chore: bump version to 2026.4.0 [skip ci]
864047d chore: gitignore .keys-DO-NOT-COMMIT/ (local signing-key workspace)
c2133f0 build: add rootfs size breakdown before squashfs packing
78a4ee4 perf(iso): trim conda env include/ + pycache to clear 5 GB (#18)
1e0c7c6 fix(build): convert voiphopper to a setup tool (last gate failure) (#17)
73868a2 ci(release): date-based version bumps (YYYY.Q.P), quarterly model (#16)
ff54309 chore(apt): re-key APT repo to new signing key 3DDEADD3... (#15)
13f403d chore: migrate APT repo domain meta.telcosec.net -> meta.telcochisel.com (#14)
a6ba066 fix(metapackages): honest tier contents + build deps for first-run tools (#13)
9ec4e5d promo: Academy CTAs in release notes + MOTD, promotion playbook (#12)
6776763 ci: pipeline hardening — boot test, image scanning, SBOM, dependabot & lint fixes (#9)
d995b7d fix(build): voiphopper — disable maintainer-mode, use libtirpc for rpc/types.h
5e24c6f seo: expand GitHub topics, fix in-ISO docs schema/keywords & org URLs
1a0c27c docs(sourceforge): auto-fill & modernize both SF README files
67254da Merge feat/remove-dashboard: dashboard removal + tool-build fixes
cb62a89 fix(build): resolve 7 tool-build failures gating the ISO
cae7439 feat: remove ChiselControl Dashboard from the build
0437b5b ci(release): prune old stable ISOs on SourceForge (keep last 2)
05a3ff5 perf(iso): shrink release ISO toward <5 GB (zstd-19 + conda trim)
352c898 fix(metapackages,fonts): buildable .debs, install real fonts, sync drift
Docs: https://telcochisel.com · GitHub: https://github.com/TelcoChisel/TelcoChiselOS
