Browser Kernel Releases
In Kameleo 4.0 we rolled out our Multikernel engine: at runtime the Desktop App automatically downloads the exact Browser Kernel version that matches your chosen fingerprint’s major version. By keeping the emulated browser and its kernel in sync, you get significantly higher success rates on anti-detect tasks. Our team commits to releasing new Chroma kernels within 5 days of each Stable Chrome update, and Junglefox kernels every two months. Below you’ll find the full list of release dates and versions.
August 5, 2025
Chroma 139
This major build is based on Chromium 139.0.7258.58
June 27, 2025
Chroma 138
This major build is based on Chromium 138.0.7204.50
On July 24, 2025, we rolled out updates that include multiple improvements to our mobile, iOS, and Safari profiles, as well as improved consistency for manual WebGL.
On July 16, 2025, we rolled out updates that fix deviceMemory masking in specific profiles.
On July 10, 2025, we rolled out updates that strengthen fingerprint protections.
June 6, 2025
Junglefox 137
This major build is based on Firefox 137.0
On June 13, 2025, we rolled out updates that boost masking performance and enhance browser startup reliability.
On July 10, 2025, we rolled out updates that strengthen fingerprint protections.
May 30, 2025
Chroma 137
This major build is based on Chromium 137.0.7151.41
On June 16, 2025, we released updates that fix multi-touch spoofing, improving emulated mobile profiles.
On June 13, 2025, we released updates that deliver improved masking performance on webGPU.
May 9, 2025
Chroma 136
This major build is based on Chromium 136.0.7103.49
April 24, 2025
Chroma 135
This major build is based on Chromium 135.0.7049.41
April 9, 2025
Junglefox 134
This major build is based on Firefox 134.0
March 9, 2025
Chroma 134
This major build is based on Chromium 134.0.6998.36
February 6, 2025
Chroma 133
This major build is based on Chromium 133.0.6943.54