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The LTTng project provides low-overhead, correlated userspace and kernel tracing on Linux. Its use of the Common Trace Format and a flexible control interface allows it to fulfill various workloads. The most relevant changes in these releases introduce support for version 7.1 of the Linux kernel. * New in these releases: 2026-06-19 LTTng modules 2.15.2 * fix: leaked file and fd on channel create error * fix: backport: hrtimer: Reduce trace noise in hrtimer_start() (v6.1.175) * fix: ext4: widen trace event i_ino fields to u64 (v7.1) * fix: ext4: delete some unused tracepoint definitions (v5.13) * fix: ext4: enhance tracepoints during the folios writeback (v6.17) * fix: btrfs: tracepoints, use correct type for inode number (v4.18) * fix: vfs: widen trace event i_ino fields to u64 (v7.1) * fix: treewide: change inode->i_ino from unsigned long to u64 (v7.1) * fix: mm/vmscan: Convert pageout() to take a folio (v5.18) * fix: mm: vmscan: add cgroup IDs to vmscan tracepoints (v7.1) * fix: hrtimer: Drop unnecessary pointer indirection in hrtimer_expire_entry event (v7.1) * fix: hrtimer: Reduce trace noise in hrtimer_start() (v7.1) 2026-06-19 LTTng modules 2.14.6 * fix: leaked file and fd on channel create error * fix: backport: hrtimer: Reduce trace noise in hrtimer_start() (v6.1.175) * fix: ext4: widen trace event i_ino fields to u64 (v7.1) * fix: ext4: delete some unused tracepoint definitions (v5.13) * fix: ext4: enhance tracepoints during the folios writeback (v6.17) * fix: btrfs: tracepoints, use correct type for inode number (v4.18) * fix: vfs: widen trace event i_ino fields to u64 (v7.1) * fix: treewide: change inode->i_ino from unsigned long to u64 (v7.1) * fix: mm/vmscan: Convert pageout() to take a folio (v5.18) * fix: mm: vmscan: add cgroup IDs to vmscan tracepoints (v7.1) * fix: hrtimer: Drop unnecessary pointer indirection in hrtimer_expire_entry event (v7.1) * fix: hrtimer: Reduce trace noise in hrtimer_start() (v7.1) Project website: https://lttng.org Documentation: https://lttng.org/docs Download link: https://lttng.org/download Enjoy! Mathieu -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com