The Linux kernel 7.2 release represents one of the most active development cycles in the project’s history, according to analysis from LWN. The release added nearly 600,000 lines of code through 16,418 non-merge commits contributed by 2,652 developers—both records or near-records for kernel development.
The 7.2 cycle exceeded the already-busy 7.1 release in commit volume, making it the second-busiest release ever. Only the 6.7 release brought in more commits, though according to the source, 6.7 was dominated by merging the bcachefs development history, while 7.2’s volume is more broadly distributed across the codebase.
Developer participation continues to trend upward. The number of developers contributing to each release has increased over time, with 7.2 setting a new record for developer count. The most active individual contributors included Uwe Kleine-König with 151 commits focused on driver subsystem cleanups, and Rosen Penev with 146 commits including LLM-authored bug fixes across multiple subsystems. By lines changed, Matthew Stewart led with 83,587 lines, largely through additions to amdgpu header files.
Review and testing infrastructure remained robust, though showing subtle shifts. Just over 8% of commits carried Tested-by tags, while 48% included Reviewed-by tags—with the review tags showing a mild downward trend in recent releases. Dan Wheeler was the most active tester with 117 Tested-by credits, while Konrad Dybcio led reviewers with 231 Reviewed-by tags.
Intel emerged as the most active employer by commit count with 1,512 changesets, followed by Red Hat with 873. However, AMD dominated by lines changed, contributing 224,121 lines. A notable increase appeared in commits from unknown affiliations, attributed partly to an influx of new developers entering the kernel community.
The 7.2 cycle saw 613 first-time developers contributing changes, continuing a trend of record-breaking new developer participation in consecutive releases. Most notably, LLM-assisted development is increasingly visible in the kernel. The release contained 1,111 commits with Assisted-by tags—a significant jump from 301 in 7.1—though the true count of AI-assisted patches is likely far higher. Additionally, 252 patches credited the Sashiko review system for bug detection, with 568 commits mentioning Sashiko in their changelogs.
Key facts
- 16,418 non-merge commits in 7.2, making it the second-busiest release in kernel history
- 2,652 developers contributed to 7.2, a record that surpassed the previous high of 2,479 in 7.1
- Nearly 600,000 lines of code were added during the 7.2 development cycle
- 613 first-time developers contributed to 7.2, breaking the record set in previous two releases
- 1,111 commits carried Assisted-by tags indicating LLM assistance, up from 301 in 7.1
- 48% of commits included Reviewed-by tags; 8% carried Tested-by tags
- Intel contributed 1,512 commits; AMD led in lines changed with 224,121