Linux Kernel 7.2 Brings Record Developer Count and Second-Busiest Cycle

Release overview

Linus Torvalds released the 7.2 kernel on August 17, 2026, after noting that the number of fixes coming in was still "bigger than I would have wished for". The release added nearly 600,000 lines of code and brought in 16,418 non-merge commits, exceeding the already busy 7.1 release. It is the second-busiest release in the kernel's history, surpassed only by 6.7, though the volume for 7.2 was more broad-based rather than dominated by a single large merge.

Developers and key contributors

The commits came from 2,652 developers, a big increase over the previous record of 2,479 set in 7.1. Developer participation has increased over the entire Git era, but the slope of that growth has clearly changed. Uwe Kleine-König was the biggest contributor with cleanups across the driver subsystem, totaling 151 changesets. Rosen Penev followed with 146, contributing LLM-authored bug fixes across several subsystems. Ian Rogers (138) and Arnaldo Carvalho de Melo (131) worked on the user-space perf tool, while Johan Hovold (133) made improvements mostly in SPI and USB.

By changed lines, Matthew Stewart led with 83,587 lines (8.4%) and Hawking Zhang followed with 62,893 (6.3%), both adding massive, machine-generated amdgpu header files. Miguel Ojeda brought the Rust zerocopy crate into the kernel source, and Darren Ye added the MediaTek mt8196 sound driver.

Testing, review, and employers

Just over 8% of commits carried Tested-by tags, while 48% included Reviewed-by tags, which show a mild downward trend. Dan Wheeler was the top tester with 117 Tested-by credits for his work on AMD graphics-driver patches. On the review side, Konrad Dybcio tagged 231 changes and Dmitry Baryshkov tagged 225; both focus on Qualcomm drivers and devicetree files and also led that list in 7.1.

Work on 7.2 was supported by 249 identified employers. By changesets, the largest groups were (Unknown) with 2,743 (16.7%), Intel with 1,512 (9.2%), Google with 1,191 (7.3%), Red Hat with 873 (5.3%), AMD with 813 (5.0%), and Qualcomm with 767 (4.7%). By lines changed, AMD led with 224,121 (22.4%), followed by (Unknown) with 103,861 (10.4%) and Google with 102,565 (10.3%). The increase in developers with unknown affiliation reflects the flood of new developers entering the community.

LLM-assisted development

Each of the previous two releases set a record for first-time developers; 7.2 broke that record with 613 new contributors. The most active was Bryam Vargas, who contributed 43 commits fixing problems across many subsystems, including input, NVMe, F2FS, AppArmor, Landlock, SELinux, NTFS, WiFi, networking, and Thunderbolt. Those patches do not carry Assisted-by tags.

Overall, 1,111 changes in 7.2, under 7% of the total, carried Assisted-by tags, a significant increase over the 301 seen in 7.1. The real count is likely far higher, since many developers do not supply those tags, maintainers rarely ask about LLM use, and at least one maintainer actively strips them. A total of 252 patches credited the Sashiko review system with Reported-by tags.

The release contains 4,830 commits with Fixes tags. That number increased dramatically after being roughly level for some time, suggesting that LLMs are being turned toward bug finding with real effects. Nearly 14,000 non-merge changesets sit in linux-next for 7.3, over 1,100 with Assisted-by tags, suggesting the high level of activity will continue.

Sources: LWN.net