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The 2.14.x releases of LTTng-modules now have an upper bound: they support kernels up to v7.1. Considering that we expect LTTng-modules 2.16.0 final to be released around next week, we can expect this 2.14.7 release to be the last one for the stable-2.14 branch. A fix appears in those releases: since we introduced the "flush or populate packet ioctl", a kernel trace could contain zeroed UUID in the very last packet of the streams within snapshots, thus causing Babeltrace 2 to fail with e.g.: Invalid metadata stream UUID: uuid=00000000-0000-0000-0000-000000000000, expected-uuid=8962f7e1-f875-8f47-a112-43868a4b000b The commit "Fix: ring buffer: zeroed UUID in populated empty packet headers" fixes this issue. * New in these releases: 2026-08-17 LTTng modules 2.15.3 * fix: backport: hrtimer: Reduce trace noise in hrtimer_start() (Ubuntu-6.8.0-136) * fix: string: Remove strncpy() from the kernel (v7.2) * fix: btrfs: tracepoints: trace transaction states during commit phase (v7.2) * fix: btrfs: tracepoints: add in_fsync field to transaction commit event (v7.2) * fix: btrfs: tracepoints: pass a transaction handle to transaction commit event (v7.2) * fix: net: constify sk_skb_reason_drop() sock parameter (v7.2) * fix: KVM: x86: Rename kvm_cache_regs.h => regs.h (v7.2) * fix: x86/msr: Remove rdmsrl() / wrmsrl() (v7.2) * fix: warning -Wordered-compare-function-pointers with LLVM * fix: warning -Wcast-function-type-strict with LLVM * Fix: ring buffer: zeroed UUID in populated empty packet headers 2026-08-17 LTTng modules 2.14.7 * Document last supported kernel version for stable-2.14 branch * fix: backport: hrtimer: Reduce trace noise in hrtimer_start() (Ubuntu-6.8.0-136) * fix: warning -Wordered-compare-function-pointers with LLVM * fix: warning -Wcast-function-type-strict with LLVM * Fix: ring buffer: zeroed UUID in populated empty packet headers Project website: https://lttng.org Documentation: https://lttng.org/docs Download link: https://lttng.org/download Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com